Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
[MTD] Cleanup of 'ioremap balanced with iounmap for drivers/mtd subsystem'
[MTD] fix nftl_write warning
[MTD] fix printk warning
[MTD ONENAND] Check OneNAND lock scheme & all block unlock command support
[MTD ONENAND] Remove unused MTD_ONENAND_SYNC_READ configuration
[MTD ONENAND] Fix OneNAND probe
[MTD NAND] Provide prototype for newly-exported nand_wait_ready()
[MTD] Remove #ifndef __KERNEL__ hack in <mtd/mtd-abi.h>
[MTD NAND] Allow override of page read and write functions.
[MTD NAND] Allocate chip->buffers separately to allow it to be overridden
[MTD NAND] Split nand_scan() into two parts; allow board driver to intervene
[MTD NAND] Export nand_wait_ready() for use by board drivers
diff --git a/Documentation/input/ff.txt b/Documentation/input/ff.txt
index c7e10ea..c53b1c1 100644
--- a/Documentation/input/ff.txt
+++ b/Documentation/input/ff.txt
@@ -1,67 +1,37 @@
Force feedback for Linux.
By Johann Deneux <deneux@ifrance.com> on 2001/04/22.
+Updated by Anssi Hannula <anssi.hannula@gmail.com> on 2006/04/09.
You may redistribute this file. Please remember to include shape.fig and
interactive.fig as well.
----------------------------------------------------------------------------
-0. Introduction
+1. Introduction
~~~~~~~~~~~~~~~
This document describes how to use force feedback devices under Linux. The
goal is not to support these devices as if they were simple input-only devices
(as it is already the case), but to really enable the rendering of force
effects.
-At the moment, only I-Force devices are supported, and not officially. That
-means I had to find out how the protocol works on my own. Of course, the
-information I managed to grasp is far from being complete, and I can not
-guarranty that this driver will work for you.
-This document only describes the force feedback part of the driver for I-Force
-devices. Please read joystick.txt before reading further this document.
+This document only describes the force feedback part of the Linux input
+interface. Please read joystick.txt and input.txt before reading further this
+document.
2. Instructions to the user
~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Here are instructions on how to compile and use the driver. In fact, this
-driver is the normal iforce, input and evdev drivers written by Vojtech
-Pavlik, plus additions to support force feedback.
+To enable force feedback, you have to:
+
+1. have your kernel configured with evdev and a driver that supports your
+ device.
+2. make sure evdev module is loaded and /dev/input/event* device files are
+ created.
Before you start, let me WARN you that some devices shake violently during the
initialisation phase. This happens for example with my "AVB Top Shot Pegasus".
To stop this annoying behaviour, move you joystick to its limits. Anyway, you
-should keep a hand on your device, in order to avoid it to brake down if
+should keep a hand on your device, in order to avoid it to break down if
something goes wrong.
-At the kernel's compilation:
- - Enable IForce/Serial
- - Enable Event interface
-
-Compile the modules, install them.
-
-You also need inputattach.
-
-You then need to insert the modules into the following order:
-% modprobe joydev
-% modprobe serport # Only for serial
-% modprobe iforce
-% modprobe evdev
-% ./inputattach -ifor $2 & # Only for serial
-If you are using USB, you don't need the inputattach step.
-
-Please check that you have all the /dev/input entries needed:
-cd /dev
-rm js*
-mkdir input
-mknod input/js0 c 13 0
-mknod input/js1 c 13 1
-mknod input/js2 c 13 2
-mknod input/js3 c 13 3
-ln -s input/js0 js0
-ln -s input/js1 js1
-ln -s input/js2 js2
-ln -s input/js3 js3
-
-mknod input/event0 c 13 64
-mknod input/event1 c 13 65
-mknod input/event2 c 13 66
-mknod input/event3 c 13 67
+If you have a serial iforce device, you need to start inputattach. See
+joystick.txt for details.
2.1 Does it work ?
~~~~~~~~~~~~~~~~~~
@@ -70,9 +40,9 @@
3. Instructions to the developper
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- All interactions are done using the event API. That is, you can use ioctl()
+All interactions are done using the event API. That is, you can use ioctl()
and write() on /dev/input/eventXX.
- This information is subject to change.
+This information is subject to change.
3.1 Querying device capabilities
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -86,18 +56,29 @@
Returns the features supported by the device. features is a bitfield with the
following bits:
-- FF_X has an X axis (usually joysticks)
-- FF_Y has an Y axis (usually joysticks)
-- FF_WHEEL has a wheel (usually sterring wheels)
- FF_CONSTANT can render constant force effects
-- FF_PERIODIC can render periodic effects (sine, triangle, square...)
+- FF_PERIODIC can render periodic effects with the following waveforms:
+ - FF_SQUARE square waveform
+ - FF_TRIANGLE triangle waveform
+ - FF_SINE sine waveform
+ - FF_SAW_UP sawtooth up waveform
+ - FF_SAW_DOWN sawtooth down waveform
+ - FF_CUSTOM custom waveform
- FF_RAMP can render ramp effects
- FF_SPRING can simulate the presence of a spring
-- FF_FRICTION can simulate friction
+- FF_FRICTION can simulate friction
- FF_DAMPER can simulate damper effects
-- FF_RUMBLE rumble effects (normally the only effect supported by rumble
- pads)
+- FF_RUMBLE rumble effects
- FF_INERTIA can simulate inertia
+- FF_GAIN gain is adjustable
+- FF_AUTOCENTER autocenter is adjustable
+
+Note: In most cases you should use FF_PERIODIC instead of FF_RUMBLE. All
+ devices that support FF_RUMBLE support FF_PERIODIC (square, triangle,
+ sine) and the other way around.
+
+Note: The exact syntax FF_CUSTOM is undefined for the time being as no driver
+ supports it yet.
int ioctl(int fd, EVIOCGEFFECTS, int *n);
@@ -108,7 +89,7 @@
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <linux/input.h>
#include <sys/ioctl.h>
-
+
int ioctl(int file_descriptor, int request, struct ff_effect *effect);
"request" must be EVIOCSFF.
@@ -120,6 +101,9 @@
some operations (removing an effect, controlling the playback).
This if field must be set to -1 by the user in order to tell the driver to
allocate a new effect.
+
+Effects are file descriptor specific.
+
See <linux/input.h> for a description of the ff_effect struct. You should also
find help in a few sketches, contained in files shape.fig and interactive.fig.
You need xfig to visualize these files.
@@ -128,8 +112,8 @@
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int ioctl(int fd, EVIOCRMFF, effect.id);
-This makes room for new effects in the device's memory. Please note this won't
-stop the effect if it was playing.
+This makes room for new effects in the device's memory. Note that this also
+stops the effect if it was playing.
3.4 Controlling the playback of effects
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -149,22 +133,21 @@
play.type = EV_FF;
play.code = effect.id;
play.value = 3;
-
+
write(fd, (const void*) &play, sizeof(play));
...
/* Stop an effect */
stop.type = EV_FF;
stop.code = effect.id;
stop.value = 0;
-
+
write(fd, (const void*) &play, sizeof(stop));
3.5 Setting the gain
~~~~~~~~~~~~~~~~~~~~
Not all devices have the same strength. Therefore, users should set a gain
factor depending on how strong they want effects to be. This setting is
-persistent across access to the driver, so you should not care about it if
-you are writing games, as another utility probably already set this for you.
+persistent across access to the driver.
/* Set the gain of the device
int gain; /* between 0 and 100 */
@@ -204,11 +187,14 @@
the direction of an effect cannot be updated with iforce devices. In this
case, the driver stops the effect, up-load it, and restart it.
+Therefore it is recommended to dynamically change direction while the effect
+is playing only when it is ok to restart the effect with a replay count of 1.
3.8 Information about the status of effects
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Every time the status of an effect is changed, an event is sent. The values
and meanings of the fields of the event are as follows:
+
struct input_event {
/* When the status of the effect changed */
struct timeval time;
@@ -225,3 +211,9 @@
FF_STATUS_STOPPED The effect stopped playing
FF_STATUS_PLAYING The effect started to play
+
+NOTE: Status feedback is only supported by iforce driver. If you have
+ a really good reason to use this, please contact
+ linux-joystick@atrey.karlin.mff.cuni.cz or anssi.hannula@gmail.com
+ so that support for it can be added to the rest of the drivers.
+
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 2c3b1ea..ba26201 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -151,9 +151,9 @@
make sure "Loadable module support" (CONFIG_MODULES) and "Module
unloading" (CONFIG_MODULE_UNLOAD) are set to "y".
-You may also want to ensure that CONFIG_KALLSYMS and perhaps even
-CONFIG_KALLSYMS_ALL are set to "y", since kallsyms_lookup_name()
-is a handy, version-independent way to find a function's address.
+Also make sure that CONFIG_KALLSYMS and perhaps even CONFIG_KALLSYMS_ALL
+are set to "y", since kallsyms_lookup_name() is used by the in-kernel
+kprobe address resolution code.
If you need to insert a probe in the middle of a function, you may find
it useful to "Compile the kernel with debug info" (CONFIG_DEBUG_INFO),
@@ -179,6 +179,27 @@
or during single-stepping of the probed instruction, Kprobes calls
kp->fault_handler. Any or all handlers can be NULL.
+NOTE:
+1. With the introduction of the "symbol_name" field to struct kprobe,
+the probepoint address resolution will now be taken care of by the kernel.
+The following will now work:
+
+ kp.symbol_name = "symbol_name";
+
+(64-bit powerpc intricacies such as function descriptors are handled
+transparently)
+
+2. Use the "offset" field of struct kprobe if the offset into the symbol
+to install a probepoint is known. This field is used to calculate the
+probepoint.
+
+3. Specify either the kprobe "symbol_name" OR the "addr". If both are
+specified, kprobe registration will fail with -EINVAL.
+
+4. With CISC architectures (such as i386 and x86_64), the kprobes code
+does not validate if the kprobe.addr is at an instruction boundary.
+Use "offset" with caution.
+
register_kprobe() returns 0 on success, or a negative errno otherwise.
User's pre-handler (kp->pre_handler):
@@ -225,6 +246,12 @@
fastcall, or anything else that affects how args are passed, the
handler's declaration must match.
+NOTE: A macro JPROBE_ENTRY is provided to handle architecture-specific
+aliasing of jp->entry. In the interest of portability, it is advised
+to use:
+
+ jp->entry = JPROBE_ENTRY(handler);
+
register_jprobe() returns 0 on success, or a negative errno otherwise.
4.3 register_kretprobe
@@ -251,6 +278,11 @@
- ret_addr: the return address
- rp: points to the corresponding kretprobe object
- task: points to the corresponding task struct
+
+The regs_return_value(regs) macro provides a simple abstraction to
+extract the return value from the appropriate register as defined by
+the architecture's ABI.
+
The handler's return value is currently ignored.
4.4 unregister_*probe
@@ -369,7 +401,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kprobes.h>
-#include <linux/kallsyms.h>
#include <linux/sched.h>
/*For each probe you need to allocate a kprobe structure*/
@@ -403,18 +434,14 @@
return 0;
}
-int init_module(void)
+static int __init kprobe_init(void)
{
int ret;
kp.pre_handler = handler_pre;
kp.post_handler = handler_post;
kp.fault_handler = handler_fault;
- kp.addr = (kprobe_opcode_t*) kallsyms_lookup_name("do_fork");
- /* register the kprobe now */
- if (!kp.addr) {
- printk("Couldn't find %s to plant kprobe\n", "do_fork");
- return -1;
- }
+ kp.symbol_name = "do_fork";
+
if ((ret = register_kprobe(&kp) < 0)) {
printk("register_kprobe failed, returned %d\n", ret);
return -1;
@@ -423,12 +450,14 @@
return 0;
}
-void cleanup_module(void)
+static void __exit kprobe_exit(void)
{
unregister_kprobe(&kp);
printk("kprobe unregistered\n");
}
+module_init(kprobe_init)
+module_exit(kprobe_exit)
MODULE_LICENSE("GPL");
----- cut here -----
@@ -463,7 +492,6 @@
#include <linux/fs.h>
#include <linux/uio.h>
#include <linux/kprobes.h>
-#include <linux/kallsyms.h>
/*
* Jumper probe for do_fork.
@@ -485,17 +513,13 @@
}
static struct jprobe my_jprobe = {
- .entry = (kprobe_opcode_t *) jdo_fork
+ .entry = JPROBE_ENTRY(jdo_fork)
};
-int init_module(void)
+static int __init jprobe_init(void)
{
int ret;
- my_jprobe.kp.addr = (kprobe_opcode_t *) kallsyms_lookup_name("do_fork");
- if (!my_jprobe.kp.addr) {
- printk("Couldn't find %s to plant jprobe\n", "do_fork");
- return -1;
- }
+ my_jprobe.kp.symbol_name = "do_fork";
if ((ret = register_jprobe(&my_jprobe)) <0) {
printk("register_jprobe failed, returned %d\n", ret);
@@ -506,12 +530,14 @@
return 0;
}
-void cleanup_module(void)
+static void __exit jprobe_exit(void)
{
unregister_jprobe(&my_jprobe);
printk("jprobe unregistered\n");
}
+module_init(jprobe_init)
+module_exit(jprobe_exit)
MODULE_LICENSE("GPL");
----- cut here -----
@@ -530,16 +556,13 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kprobes.h>
-#include <linux/kallsyms.h>
static const char *probed_func = "sys_open";
/* Return-probe handler: If the probed function fails, log the return value. */
static int ret_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
{
- // Substitute the appropriate register name for your architecture --
- // e.g., regs->rax for x86_64, regs->gpr[3] for ppc64.
- int retval = (int) regs->eax;
+ int retval = regs_return_value(regs);
if (retval < 0) {
printk("%s returns %d\n", probed_func, retval);
}
@@ -552,15 +575,11 @@
.maxactive = 20
};
-int init_module(void)
+static int __init kretprobe_init(void)
{
int ret;
- my_kretprobe.kp.addr =
- (kprobe_opcode_t *) kallsyms_lookup_name(probed_func);
- if (!my_kretprobe.kp.addr) {
- printk("Couldn't find %s to plant return probe\n", probed_func);
- return -1;
- }
+ my_kretprobe.kp.symbol_name = (char *)probed_func;
+
if ((ret = register_kretprobe(&my_kretprobe)) < 0) {
printk("register_kretprobe failed, returned %d\n", ret);
return -1;
@@ -569,7 +588,7 @@
return 0;
}
-void cleanup_module(void)
+static void __exit kretprobe_exit(void)
{
unregister_kretprobe(&my_kretprobe);
printk("kretprobe unregistered\n");
@@ -578,6 +597,8 @@
my_kretprobe.nmissed, probed_func);
}
+module_init(kretprobe_init)
+module_exit(kretprobe_exit)
MODULE_LICENSE("GPL");
----- cut here -----
@@ -590,3 +611,5 @@
For additional information on Kprobes, refer to the following URLs:
http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
http://www.redhat.com/magazine/005mar05/features/kprobes/
+http://www-users.cs.umn.edu/~boutcher/kprobes/
+http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
index f042cc4..dbe327d 100644
--- a/arch/alpha/kernel/alpha_ksyms.c
+++ b/arch/alpha/kernel/alpha_ksyms.c
@@ -36,7 +36,6 @@
#include <asm/cacheflush.h>
#include <asm/vga.h>
-#define __KERNEL_SYSCALLS__
#include <asm/unistd.h>
extern struct hwrpb_struct *hwrpb;
@@ -116,7 +115,7 @@
EXPORT_SYMBOL(sys_exit);
EXPORT_SYMBOL(sys_write);
EXPORT_SYMBOL(sys_lseek);
-EXPORT_SYMBOL(execve);
+EXPORT_SYMBOL(kernel_execve);
EXPORT_SYMBOL(sys_setsid);
EXPORT_SYMBOL(sys_wait4);
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index 01ecd09..c95e95e 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -655,12 +655,12 @@
.end kernel_thread
/*
- * execve(path, argv, envp)
+ * kernel_execve(path, argv, envp)
*/
.align 4
- .globl execve
- .ent execve
-execve:
+ .globl kernel_execve
+ .ent kernel_execve
+kernel_execve:
/* We can be called from a module. */
ldgp $gp, 0($27)
lda $sp, -(32+SIZEOF_PT_REGS+8)($sp)
@@ -704,7 +704,7 @@
1: lda $sp, 32+SIZEOF_PT_REGS+8($sp)
ret
-.end execve
+.end kernel_execve
/*
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 73c7622..8a31fc1 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -402,15 +402,15 @@
down_read(&uts_sem);
error = -EFAULT;
- if (copy_to_user(name + 0, system_utsname.sysname, 32))
+ if (copy_to_user(name + 0, utsname()->sysname, 32))
goto out;
- if (copy_to_user(name + 32, system_utsname.nodename, 32))
+ if (copy_to_user(name + 32, utsname()->nodename, 32))
goto out;
- if (copy_to_user(name + 64, system_utsname.release, 32))
+ if (copy_to_user(name + 64, utsname()->release, 32))
goto out;
- if (copy_to_user(name + 96, system_utsname.version, 32))
+ if (copy_to_user(name + 96, utsname()->version, 32))
goto out;
- if (copy_to_user(name + 128, system_utsname.machine, 32))
+ if (copy_to_user(name + 128, utsname()->machine, 32))
goto out;
error = 0;
@@ -449,8 +449,8 @@
down_read(&uts_sem);
for (i = 0; i < len; ++i) {
- __put_user(system_utsname.domainname[i], name + i);
- if (system_utsname.domainname[i] == '\0')
+ __put_user(utsname()->domainname[i], name + i);
+ if (utsname()->domainname[i] == '\0')
break;
}
up_read(&uts_sem);
@@ -607,12 +607,12 @@
asmlinkage long
osf_sysinfo(int command, char __user *buf, long count)
{
- static char * sysinfo_table[] = {
- system_utsname.sysname,
- system_utsname.nodename,
- system_utsname.release,
- system_utsname.version,
- system_utsname.machine,
+ char *sysinfo_table[] = {
+ utsname()->sysname,
+ utsname()->nodename,
+ utsname()->release,
+ utsname()->version,
+ utsname()->machine,
"alpha", /* instruction set architecture */
"dummy", /* hardware serial number */
"dummy", /* hardware manufacturer */
diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index 9d7dff2..7569232 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -229,7 +229,7 @@
static struct tty_driver *srmcons_driver;
-static struct tty_operations srmcons_ops = {
+static const struct tty_operations srmcons_ops = {
.open = srmcons_open,
.close = srmcons_close,
.write = srmcons_write,
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 0a722e7..6bbd93d 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -348,7 +348,7 @@
cpu_name, processor_id, (int)processor_id & 15,
proc_arch[cpu_architecture()], cr_alignment);
- sprintf(system_utsname.machine, "%s%c", list->arch_name, ENDIANNESS);
+ sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS);
sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS);
elf_hwcap = list->elf_hwcap;
#ifndef CONFIG_ARM_THUMB
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 68e9634..421329f 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -36,7 +36,9 @@
* The online bitmask indicates that the CPU is up and running.
*/
cpumask_t cpu_possible_map;
+EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_online_map;
+EXPORT_SYMBOL(cpu_online_map);
/*
* as from 2.5, kernels no longer have an init_tasks structure
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index 8170af4..00c18d3 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -279,7 +279,7 @@
return error;
}
-long execve(const char *filename, char **argv, char **envp)
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
{
struct pt_regs regs;
int ret;
@@ -317,7 +317,7 @@
out:
return ret;
}
-EXPORT_SYMBOL(execve);
+EXPORT_SYMBOL(kernel_execve);
/*
* Since loff_t is a 64 bit type we avoid a lot of ABI hastle
diff --git a/arch/arm26/kernel/setup.c b/arch/arm26/kernel/setup.c
index e7eb070..466ddb5 100644
--- a/arch/arm26/kernel/setup.c
+++ b/arch/arm26/kernel/setup.c
@@ -143,7 +143,7 @@
dump_cpu_info();
- sprintf(system_utsname.machine, "%s", list->arch_name);
+ sprintf(init_utsname()->machine, "%s", list->arch_name);
sprintf(elf_platform, "%s", list->elf_name);
elf_hwcap = list->elf_hwcap;
diff --git a/arch/arm26/kernel/sys_arm.c b/arch/arm26/kernel/sys_arm.c
index 8545789..dc05aba 100644
--- a/arch/arm26/kernel/sys_arm.c
+++ b/arch/arm26/kernel/sys_arm.c
@@ -283,7 +283,7 @@
}
/* FIXME - see if this is correct for arm26 */
-long execve(const char *filename, char **argv, char **envp)
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
{
struct pt_regs regs;
int ret;
@@ -320,4 +320,4 @@
return ret;
}
-EXPORT_SYMBOL(execve);
+EXPORT_SYMBOL(kernel_execve);
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
index 6ec5693..8deb600 100644
--- a/arch/avr32/kernel/sys_avr32.c
+++ b/arch/avr32/kernel/sys_avr32.c
@@ -49,3 +49,17 @@
fput(file);
return error;
}
+
+int kernel_execve(const char *file, char **argv, char **envp)
+{
+ register long scno asm("r8") = __NR_execve;
+ register long sc1 asm("r12") = (long)file;
+ register long sc2 asm("r11") = (long)argv;
+ register long sc3 asm("r10") = (long)envp;
+
+ asm volatile("scall"
+ : "=r"(sc1)
+ : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
+ : "cc", "memory");
+ return sc1;
+}
diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c
index 464ecae..2d0023f 100644
--- a/arch/cris/arch-v32/kernel/smp.c
+++ b/arch/cris/arch-v32/kernel/smp.c
@@ -28,6 +28,7 @@
/* CPU masks */
cpumask_t cpu_online_map = CPU_MASK_NONE;
+EXPORT_SYMBOL(cpu_online_map);
cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
EXPORT_SYMBOL(phys_cpu_present_map);
diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
index 7af3d5d..ca8b45a 100644
--- a/arch/cris/kernel/setup.c
+++ b/arch/cris/kernel/setup.c
@@ -160,7 +160,7 @@
show_etrax_copyright();
/* Setup utsname */
- strcpy(system_utsname.machine, cris_machine_name);
+ strcpy(init_utsname()->machine, cris_machine_name);
}
static void *c_start(struct seq_file *m, loff_t *pos)
diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile
index 32db349..e8f73ed 100644
--- a/arch/frv/kernel/Makefile
+++ b/arch/frv/kernel/Makefile
@@ -8,7 +8,7 @@
extra-y:= head.o init_task.o vmlinux.lds
obj-y := $(heads-y) entry.o entry-table.o break.o switch_to.o kernel_thread.o \
- process.o traps.o ptrace.o signal.o dma.o \
+ kernel_execve.o process.o traps.o ptrace.o signal.o dma.o \
sys_frv.o time.o semaphore.o setup.o frv_ksyms.o \
debug-stub.o irq.o sleep.o uaccess.o
diff --git a/arch/frv/kernel/kernel_execve.S b/arch/frv/kernel/kernel_execve.S
new file mode 100644
index 0000000..9b074a1
--- /dev/null
+++ b/arch/frv/kernel/kernel_execve.S
@@ -0,0 +1,33 @@
+/* in-kernel program execution
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/linkage.h>
+#include <asm/unistd.h>
+
+###############################################################################
+#
+# Do a system call from kernel instead of calling sys_execve so we end up with
+# proper pt_regs.
+#
+# int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+#
+# On entry: GR8/GR9/GR10: arguments to function
+# On return: GR8: syscall return.
+#
+###############################################################################
+ .globl kernel_execve
+ .type kernel_execve,@function
+kernel_execve:
+ setlos __NR_execve,gr7
+ tira gr0,#0
+ bralr
+
+ .size kernel_execve,.-kernel_execve
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
index 0f61b7a..302a2df 100644
--- a/arch/h8300/kernel/sys_h8300.c
+++ b/arch/h8300/kernel/sys_h8300.c
@@ -25,6 +25,7 @@
#include <asm/cachectl.h>
#include <asm/traps.h>
#include <asm/ipc.h>
+#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -280,3 +281,26 @@
((regs->pc)&0xffffff)-2,regs->orig_er0,regs->er1,regs->er2,regs->er3,regs->er0);
}
#endif
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register long res __asm__("er0");
+ register const char * _a __asm__("er1") = filename;
+ register void *_b __asm__("er2") = argv;
+ register void *_c __asm__("er3") = envp;
+ __asm__ __volatile__ ("mov.l %1,er0\n\t"
+ "trapa #0\n\t"
+ : "=r" (res)
+ : "g" (__NR_execve),
+ "g" (_a),
+ "g" (_b),
+ "g" (_c)
+ : "cc", "memory");
+ return res;
+}
+
+
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 3fd2f25..af219e5 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1142,7 +1142,7 @@
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on EXPERIMENTAL && MODULES
+ depends on KALLSYMS && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index afe6505..d98e44b 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -230,20 +230,20 @@
struct pt_regs *regs)
{
unsigned long *sara = (unsigned long *)®s->esp;
- struct kretprobe_instance *ri;
- if ((ri = get_free_rp_inst(rp)) != NULL) {
- ri->rp = rp;
- ri->task = current;
+ struct kretprobe_instance *ri;
+
+ if ((ri = get_free_rp_inst(rp)) != NULL) {
+ ri->rp = rp;
+ ri->task = current;
ri->ret_addr = (kprobe_opcode_t *) *sara;
/* Replace the return addr with trampoline addr */
*sara = (unsigned long) &kretprobe_trampoline;
-
- add_rp_inst(ri);
- } else {
- rp->nmissed++;
- }
+ add_rp_inst(ri);
+ } else {
+ rp->nmissed++;
+ }
}
/*
@@ -359,7 +359,7 @@
void __kprobes kretprobe_trampoline_holder(void)
{
asm volatile ( ".global kretprobe_trampoline\n"
- "kretprobe_trampoline: \n"
+ "kretprobe_trampoline: \n"
" pushf\n"
/* skip cs, eip, orig_eax, es, ds */
" subl $20, %esp\n"
@@ -395,14 +395,15 @@
*/
fastcall void *__kprobes trampoline_handler(struct pt_regs *regs)
{
- struct kretprobe_instance *ri = NULL;
- struct hlist_head *head;
- struct hlist_node *node, *tmp;
+ struct kretprobe_instance *ri = NULL;
+ struct hlist_head *head, empty_rp;
+ struct hlist_node *node, *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
- head = kretprobe_inst_table_head(current);
+ head = kretprobe_inst_table_head(current);
/*
* It is possible to have multiple instances associated with a given
@@ -413,14 +414,14 @@
* We can handle this because:
* - instances are always inserted at the head of the list
* - when multiple return probes are registered for the same
- * function, the first instance's ret_addr will point to the
+ * function, the first instance's ret_addr will point to the
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
- if (ri->task != current)
+ if (ri->task != current)
/* another task is sharing our hash bucket */
- continue;
+ continue;
if (ri->rp && ri->rp->handler){
__get_cpu_var(current_kprobe) = &ri->rp->kp;
@@ -429,7 +430,7 @@
}
orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri);
+ recycle_rp_inst(ri, &empty_rp);
if (orig_ret_address != trampoline_address)
/*
@@ -444,6 +445,10 @@
spin_unlock_irqrestore(&kretprobe_lock, flags);
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
return (void*)orig_ret_address;
}
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 96cd023..dad02a9 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -297,9 +297,9 @@
if (user_mode_vm(regs))
printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
printk(" EFLAGS: %08lx %s (%s %.*s)\n",
- regs->eflags, print_tainted(), system_utsname.release,
- (int)strcspn(system_utsname.version, " "),
- system_utsname.version);
+ regs->eflags, print_tainted(), init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax,regs->ebx,regs->ecx,regs->edx);
printk("ESI: %08lx EDI: %08lx EBP: %08lx",
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 0831f70..9d93ecf 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -612,6 +612,7 @@
/* which logical CPUs are on which nodes */
cpumask_t node_2_cpu_mask[MAX_NUMNODES] __read_mostly =
{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
+EXPORT_SYMBOL(node_2_cpu_mask);
/* which node each logical CPU is on */
int cpu_2_node[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
EXPORT_SYMBOL(cpu_2_node);
diff --git a/arch/i386/kernel/sys_i386.c b/arch/i386/kernel/sys_i386.c
index 8fdb1fb..4048397 100644
--- a/arch/i386/kernel/sys_i386.c
+++ b/arch/i386/kernel/sys_i386.c
@@ -21,6 +21,7 @@
#include <linux/utsname.h>
#include <asm/uaccess.h>
+#include <asm/unistd.h>
#include <asm/ipc.h>
/*
@@ -210,7 +211,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}
@@ -226,16 +227,21 @@
down_read(&uts_sem);
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
- error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
- error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
- error |= __put_user(0,name->release+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
- error |= __put_user(0,name->version+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
- error |= __put_user(0,name->machine+__OLD_UTS_LEN);
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
+ __OLD_UTS_LEN);
+ error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->nodename, &utsname()->nodename,
+ __OLD_UTS_LEN);
+ error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->release, &utsname()->release,
+ __OLD_UTS_LEN);
+ error |= __put_user(0, name->release + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->version, &utsname()->version,
+ __OLD_UTS_LEN);
+ error |= __put_user(0, name->version + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->machine, &utsname()->machine,
+ __OLD_UTS_LEN);
+ error |= __put_user(0, name->machine + __OLD_UTS_LEN);
up_read(&uts_sem);
@@ -243,3 +249,17 @@
return error;
}
+
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ long __res;
+ asm volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx"
+ : "=a" (__res)
+ : "0" (__NR_execve),"ri" (filename),"c" (argv), "d" (envp) : "memory");
+ return __res;
+}
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 6820b8d..00489b7 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -357,9 +357,9 @@
KERN_EMERG "EIP: %04x:[<%08lx>] %s VLI\n"
KERN_EMERG "EFLAGS: %08lx (%s %.*s)\n",
smp_processor_id(), 0xffff & regs->xcs, regs->eip,
- print_tainted(), regs->eflags, system_utsname.release,
- (int)strcspn(system_utsname.version, " "),
- system_utsname.version);
+ print_tainted(), regs->eflags, init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
print_symbol(KERN_EMERG "EIP is at %s\n", regs->eip);
printk(KERN_EMERG "eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 0b7f701..70f7eb9 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -516,7 +516,7 @@
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on EXPERIMENTAL && MODULES
+ depends on KALLSYMS && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 0daacc2..246eb3d 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -940,7 +940,7 @@
printk(KERN_INFO " no serial options enabled\n");
}
-static struct tty_operations hp_ops = {
+static const struct tty_operations hp_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 12701cf..e5b1be5 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -492,11 +492,11 @@
br.ret.sptk.many rp
END(prefetch_stack)
-GLOBAL_ENTRY(execve)
+GLOBAL_ENTRY(kernel_execve)
mov r15=__NR_execve // put syscall number in place
break __BREAK_SYSCALL
br.ret.sptk.many rp
-END(execve)
+END(kernel_execve)
GLOBAL_ENTRY(clone)
mov r15=__NR_clone // put syscall number in place
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index 169ec3a..51217d6 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -90,7 +90,7 @@
p->ainsn.target_br_reg = 0;
/* Check for Break instruction
- * Bits 37:40 Major opcode to be zero
+ * Bits 37:40 Major opcode to be zero
* Bits 27:32 X6 to be zero
* Bits 32:35 X3 to be zero
*/
@@ -104,19 +104,19 @@
switch (major_opcode) {
case INDIRECT_CALL_OPCODE:
p->ainsn.inst_flag |= INST_FLAG_FIX_BRANCH_REG;
- p->ainsn.target_br_reg = ((kprobe_inst >> 6) & 0x7);
- break;
+ p->ainsn.target_br_reg = ((kprobe_inst >> 6) & 0x7);
+ break;
case IP_RELATIVE_PREDICT_OPCODE:
case IP_RELATIVE_BRANCH_OPCODE:
p->ainsn.inst_flag |= INST_FLAG_FIX_RELATIVE_IP_ADDR;
- break;
+ break;
case IP_RELATIVE_CALL_OPCODE:
- p->ainsn.inst_flag |= INST_FLAG_FIX_RELATIVE_IP_ADDR;
- p->ainsn.inst_flag |= INST_FLAG_FIX_BRANCH_REG;
- p->ainsn.target_br_reg = ((kprobe_inst >> 6) & 0x7);
- break;
+ p->ainsn.inst_flag |= INST_FLAG_FIX_RELATIVE_IP_ADDR;
+ p->ainsn.inst_flag |= INST_FLAG_FIX_BRANCH_REG;
+ p->ainsn.target_br_reg = ((kprobe_inst >> 6) & 0x7);
+ break;
}
- } else if (bundle_encoding[template][slot] == X) {
+ } else if (bundle_encoding[template][slot] == X) {
switch (major_opcode) {
case LONG_CALL_OPCODE:
p->ainsn.inst_flag |= INST_FLAG_FIX_BRANCH_REG;
@@ -258,18 +258,18 @@
switch (slot) {
case 0:
- *major_opcode = (bundle->quad0.slot0 >> SLOT0_OPCODE_SHIFT);
- *kprobe_inst = bundle->quad0.slot0;
- break;
+ *major_opcode = (bundle->quad0.slot0 >> SLOT0_OPCODE_SHIFT);
+ *kprobe_inst = bundle->quad0.slot0;
+ break;
case 1:
- *major_opcode = (bundle->quad1.slot1_p1 >> SLOT1_p1_OPCODE_SHIFT);
- kprobe_inst_p0 = bundle->quad0.slot1_p0;
- kprobe_inst_p1 = bundle->quad1.slot1_p1;
- *kprobe_inst = kprobe_inst_p0 | (kprobe_inst_p1 << (64-46));
+ *major_opcode = (bundle->quad1.slot1_p1 >> SLOT1_p1_OPCODE_SHIFT);
+ kprobe_inst_p0 = bundle->quad0.slot1_p0;
+ kprobe_inst_p1 = bundle->quad1.slot1_p1;
+ *kprobe_inst = kprobe_inst_p0 | (kprobe_inst_p1 << (64-46));
break;
case 2:
- *major_opcode = (bundle->quad1.slot2 >> SLOT2_OPCODE_SHIFT);
- *kprobe_inst = bundle->quad1.slot2;
+ *major_opcode = (bundle->quad1.slot2 >> SLOT2_OPCODE_SHIFT);
+ *kprobe_inst = bundle->quad1.slot2;
break;
}
}
@@ -290,11 +290,11 @@
return -EINVAL;
}
- if (in_ivt_functions(addr)) {
- printk(KERN_WARNING "Kprobes can't be inserted inside "
+ if (in_ivt_functions(addr)) {
+ printk(KERN_WARNING "Kprobes can't be inserted inside "
"IVT functions at 0x%lx\n", addr);
- return -EINVAL;
- }
+ return -EINVAL;
+ }
if (slot == 1 && bundle_encoding[template][1] != L) {
printk(KERN_WARNING "Inserting kprobes on slot #1 "
@@ -338,12 +338,13 @@
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
- struct hlist_head *head;
+ struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =
((struct fnptr *)kretprobe_trampoline)->ip;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
head = kretprobe_inst_table_head(current);
@@ -369,7 +370,7 @@
ri->rp->handler(ri, regs);
orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri);
+ recycle_rp_inst(ri, &empty_rp);
if (orig_ret_address != trampoline_address)
/*
@@ -387,6 +388,10 @@
spin_unlock_irqrestore(&kretprobe_lock, flags);
preempt_enable_no_resched();
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
/*
* By returning a non-zero value, we are telling
* kprobe_handler() that we don't want the post_handler
@@ -424,14 +429,14 @@
bundle_t *bundle;
bundle = &((kprobe_opcode_t *)kprobe_addr)->bundle;
- template = bundle->quad0.template;
+ template = bundle->quad0.template;
if(valid_kprobe_addr(template, slot, addr))
return -EINVAL;
/* Move to slot 2, if bundle is MLX type and kprobe slot is 1 */
- if (slot == 1 && bundle_encoding[template][1] == L)
- slot++;
+ if (slot == 1 && bundle_encoding[template][1] == L)
+ slot++;
/* Get kprobe_inst and major_opcode from the bundle */
get_kprobe_inst(bundle, slot, &kprobe_inst, &major_opcode);
@@ -489,21 +494,22 @@
*/
static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
{
- unsigned long bundle_addr = (unsigned long) (&p->ainsn.insn->bundle);
- unsigned long resume_addr = (unsigned long)p->addr & ~0xFULL;
- unsigned long template;
- int slot = ((unsigned long)p->addr & 0xf);
+ unsigned long bundle_addr = (unsigned long) (&p->ainsn.insn->bundle);
+ unsigned long resume_addr = (unsigned long)p->addr & ~0xFULL;
+ unsigned long template;
+ int slot = ((unsigned long)p->addr & 0xf);
template = p->ainsn.insn->bundle.quad0.template;
- if (slot == 1 && bundle_encoding[template][1] == L)
- slot = 2;
+ if (slot == 1 && bundle_encoding[template][1] == L)
+ slot = 2;
if (p->ainsn.inst_flag) {
if (p->ainsn.inst_flag & INST_FLAG_FIX_RELATIVE_IP_ADDR) {
/* Fix relative IP address */
- regs->cr_iip = (regs->cr_iip - bundle_addr) + resume_addr;
+ regs->cr_iip = (regs->cr_iip - bundle_addr) +
+ resume_addr;
}
if (p->ainsn.inst_flag & INST_FLAG_FIX_BRANCH_REG) {
@@ -540,18 +546,18 @@
}
if (slot == 2) {
- if (regs->cr_iip == bundle_addr + 0x10) {
- regs->cr_iip = resume_addr + 0x10;
- }
- } else {
- if (regs->cr_iip == bundle_addr) {
- regs->cr_iip = resume_addr;
- }
+ if (regs->cr_iip == bundle_addr + 0x10) {
+ regs->cr_iip = resume_addr + 0x10;
+ }
+ } else {
+ if (regs->cr_iip == bundle_addr) {
+ regs->cr_iip = resume_addr;
+ }
}
turn_ss_off:
- /* Turn off Single Step bit */
- ia64_psr(regs)->ss = 0;
+ /* Turn off Single Step bit */
+ ia64_psr(regs)->ss = 0;
}
static void __kprobes prepare_ss(struct kprobe *p, struct pt_regs *regs)
@@ -587,7 +593,7 @@
/* Move to slot 2, if bundle is MLX type and kprobe slot is 1 */
if (slot == 1 && bundle_encoding[template][1] == L)
- slot++;
+ slot++;
/* Get Kprobe probe instruction at given slot*/
get_kprobe_inst(&bundle, slot, &kprobe_inst, &major_opcode);
@@ -627,7 +633,7 @@
if (p) {
if ((kcb->kprobe_status == KPROBE_HIT_SS) &&
(p->ainsn.inst_flag == INST_FLAG_BREAK_INST)) {
- ia64_psr(regs)->ss = 0;
+ ia64_psr(regs)->ss = 0;
goto no_kprobe;
}
/* We have reentered the pre_kprobe_handler(), since
@@ -887,7 +893,7 @@
* fix the return address to our jprobe_inst_return() function
* in the jprobes.S file
*/
- regs->b0 = ((struct fnptr *)(jprobe_inst_return))->ip;
+ regs->b0 = ((struct fnptr *)(jprobe_inst_return))->ip;
return 1;
}
diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c
index 2034063..a78b45f 100644
--- a/arch/ia64/kernel/numa.c
+++ b/arch/ia64/kernel/numa.c
@@ -28,6 +28,7 @@
EXPORT_SYMBOL(cpu_to_node_map);
cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
+EXPORT_SYMBOL(node_to_cpu_mask);
void __cpuinit map_cpu_to_node(int cpu, int nid)
{
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index ea914cc..51922b9 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -8,8 +8,6 @@
* 2005-10-07 Keith Owens <kaos@sgi.com>
* Add notify_die() hooks.
*/
-#define __KERNEL_SYSCALLS__ /* see <asm/unistd.h> */
-
#include <linux/cpu.h>
#include <linux/pm.h>
#include <linux/elf.h>
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index b632b9c..462ea17 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -423,7 +423,7 @@
"coherency_domain %d, "
"region_size %d\n",
- partid, system_utsname.nodename,
+ partid, utsname()->nodename,
shubtype ? "shub2" : "shub1",
(u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
system_size, sharing_size, coher, region_size);
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index a9cea32..b567351 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -25,6 +25,8 @@
#include <asm/cachectl.h>
#include <asm/cacheflush.h>
#include <asm/ipc.h>
+#include <asm/syscall.h>
+#include <asm/unistd.h>
/*
* sys_tas() - test-and-set
@@ -205,7 +207,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}
@@ -223,3 +225,21 @@
return -ENOSYS;
}
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register long __scno __asm__ ("r7") = __NR_execve;
+ register long __arg3 __asm__ ("r2") = (long)(envp);
+ register long __arg2 __asm__ ("r1") = (long)(argv);
+ register long __res __asm__ ("r0") = (long)(filename);
+ __asm__ __volatile__ (
+ "trap #" SYSCALL_VECTOR "|| nop"
+ : "=r" (__res)
+ : "r" (__scno), "0" (__res), "r" (__arg2),
+ "r" (__arg3)
+ : "memory");
+ return __res;
+}
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 143c552..90238a8 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -27,6 +27,7 @@
#include <asm/traps.h>
#include <asm/ipc.h>
#include <asm/page.h>
+#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -663,3 +664,18 @@
{
return PAGE_SIZE;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register long __res asm ("%d0") = __NR_execve;
+ register long __a asm ("%d1") = (long)(filename);
+ register long __b asm ("%d2") = (long)(argv);
+ register long __c asm ("%d3") = (long)(envp);
+ asm volatile ("trap #0" : "+d" (__res)
+ : "d" (__a), "d" (__b), "d" (__c));
+ return __res;
+}
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index d87e1e0..c3494b8 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -26,6 +26,7 @@
#include <asm/traps.h>
#include <asm/ipc.h>
#include <asm/cacheflush.h>
+#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -206,3 +207,17 @@
return PAGE_SIZE;
}
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register long __res asm ("%d0") = __NR_execve;
+ register long __a asm ("%d1") = (long)(filename);
+ register long __b asm ("%d2") = (long)(argv);
+ register long __c asm ("%d3") = (long)(envp);
+ asm volatile ("trap #0" : "+d" (__res)
+ : "d" (__a), "d" (__b), "d" (__c));
+ return __res;
+}
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 30750c5..87cee34 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -537,6 +537,7 @@
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
select ARCH_SPARSEMEM_ENABLE
help
Qemu is a software emulator which among other architectures also
@@ -1841,6 +1842,14 @@
bool
default y
+config LOCKDEP_SUPPORT
+ bool
+ default y
+
+config STACKTRACE_SUPPORT
+ bool
+ default y
+
source "init/Kconfig"
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
diff --git a/arch/mips/basler/excite/excite_flashtest.c b/arch/mips/basler/excite/excite_flashtest.c
deleted file mode 100644
index f0024a8..0000000
--- a/arch/mips/basler/excite/excite_flashtest.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/*
-* Copyright (C) 2005 by Basler Vision Technologies AG
-* Author: Thies Moeller <thies.moeller@baslerweb.com>
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation; either version 2 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-
-#include <excite.h>
-
-#include <asm/io.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/nand_ecc.h>
-#include <linux/mtd/partitions.h>
-#include <asm/rm9k-ocd.h> // for ocd_write
-#include <linux/workqueue.h> // for queue
-
-#include "excite_nandflash.h"
-#include "nandflash.h"
-
-#define PFX "excite flashtest: "
-typedef void __iomem *io_reg_t;
-
-#define io_readb(__a__) __raw_readb((__a__))
-#define io_writeb(__v__, __a__) __raw_writeb((__v__), (__a__))
-
-
-
-static inline const struct resource *excite_nandflash_get_resource(
- struct platform_device *d, unsigned long flags, const char *basename)
-{
- const char fmt[] = "%s_%u";
- char buf[80];
-
- if (unlikely(snprintf(buf, sizeof buf, fmt, basename, d->id) >= sizeof buf))
- return NULL;
-
- return platform_get_resource_byname(d, flags, buf);
-}
-
-static inline io_reg_t
-excite_nandflash_map_regs(struct platform_device *d, const char *basename)
-{
- void *result = NULL;
- const struct resource *const r =
- excite_nandflash_get_resource(d, IORESOURCE_MEM, basename);
- if (r)
- result = ioremap_nocache(r->start, r->end + 1 - r->start);
- return result;
-}
-
-/* controller and mtd information */
-
-struct excite_nandflash_drvdata {
- struct mtd_info board_mtd;
- struct nand_chip board_chip;
- io_reg_t regs;
-};
-
-
-/* command and control functions */
-static void excite_nandflash_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- struct nand_chip *this = mtd->priv;
- io_reg_t regs = container_of(mtd,struct excite_nandflash_drvdata,board_mtd)->regs;
-
- switch (cmd) {
- /* Select the command latch */
- case NAND_CTL_SETCLE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_CMD;
- break;
- /* Deselect the command latch */
- case NAND_CTL_CLRCLE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_DATA;
- break;
- /* Select the address latch */
- case NAND_CTL_SETALE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_ADDR;
- break;
- /* Deselect the address latch */
- case NAND_CTL_CLRALE: this->IO_ADDR_W = regs + EXCITE_NANDFLASH_DATA;
- break;
- /* Select the chip -- not used */
- case NAND_CTL_SETNCE:
- break;
- /* Deselect the chip -- not used */
- case NAND_CTL_CLRNCE:
- break;
- }
-
- this->IO_ADDR_R = this->IO_ADDR_W;
-}
-
-/* excite_nandflash_devready()
- *
- * returns 0 if the nand is busy, 1 if it is ready
- */
-static int excite_nandflash_devready(struct mtd_info *mtd)
-{
- struct excite_nandflash_drvdata *drvdata =
- container_of(mtd, struct excite_nandflash_drvdata, board_mtd);
-
- return io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS);
-}
-
-/* device management functions */
-
-/* excite_nandflash_remove
- *
- * called by device layer to remove the driver
- * the binding to the mtd and all allocated
- * resources are released
- */
-static int excite_nandflash_remove(struct device *dev)
-{
- struct excite_nandflash_drvdata *this = dev_get_drvdata(dev);
-
- pr_info(PFX "remove");
-
- dev_set_drvdata(dev, NULL);
-
- if (this == NULL) {
- pr_debug(PFX "call remove without private data!!");
- return 0;
- }
-
-
- /* free the common resources */
- if (this->regs != NULL) {
- iounmap(this->regs);
- this->regs = NULL;
- }
-
- kfree(this);
-
- return 0;
-}
-
-static int elapsed;
-
-void my_workqueue_handler(void *arg)
-{
- elapsed = 1;
-}
-
-DECLARE_WORK(sigElapsed, my_workqueue_handler, 0);
-
-
-/* excite_nandflash_probe
- *
- * called by device layer when it finds a device matching
- * one our driver can handled. This code checks to see if
- * it can allocate all necessary resources then calls the
- * nand layer to look for devices
-*/
-static int excite_nandflash_probe(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
-
- struct excite_nandflash_drvdata *drvdata; /* private driver data */
- struct nand_chip *board_chip; /* private flash chip data */
- struct mtd_info *board_mtd; /* mtd info for this board */
-
- int err = 0;
- int count = 0;
- struct timeval tv,endtv;
- unsigned int dt;
-
- pr_info(PFX "probe dev: (%p)\n", dev);
-
- pr_info(PFX "adjust LB timing\n");
- ocd_writel(0x00000330, LDP2);
-
- drvdata = kmalloc(sizeof(*drvdata), GFP_KERNEL);
- if (unlikely(!drvdata)) {
- printk(KERN_ERR PFX "no memory for drvdata\n");
- err = -ENOMEM;
- goto mem_error;
- }
-
- /* Initialize structures */
- memset(drvdata, 0, sizeof(*drvdata));
-
- /* bind private data into driver */
- dev_set_drvdata(dev, drvdata);
-
- /* allocate and map the resource */
- drvdata->regs =
- excite_nandflash_map_regs(pdev, EXCITE_NANDFLASH_RESOURCE_REGS);
-
- if (unlikely(!drvdata->regs)) {
- printk(KERN_ERR PFX "cannot reserve register region\n");
- err = -ENXIO;
- goto io_error;
- }
-
- /* initialise our chip */
- board_chip = &drvdata->board_chip;
-
- board_chip->IO_ADDR_R = drvdata->regs + EXCITE_NANDFLASH_DATA;
- board_chip->IO_ADDR_W = drvdata->regs + EXCITE_NANDFLASH_DATA;
-
- board_chip->hwcontrol = excite_nandflash_hwcontrol;
- board_chip->dev_ready = excite_nandflash_devready;
-
- board_chip->chip_delay = 25;
- #if 0
- /* TODO: speedup the initial scan */
- board_chip->options = NAND_USE_FLASH_BBT;
- #endif
- board_chip->eccmode = NAND_ECC_SOFT;
-
- /* link chip to mtd */
- board_mtd = &drvdata->board_mtd;
- board_mtd->priv = board_chip;
-
-
- pr_info(PFX "FlashTest\n");
- elapsed = 0;
-/* schedule_delayed_work(&sigElapsed, 1*HZ);
- while (!elapsed) {
- io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS);
- count++;
- }
- pr_info(PFX "reads in 1 sec --> %d\n",count);
-*/
- do_gettimeofday(&tv);
- for (count = 0 ; count < 1000000; count ++) {
- io_readb(drvdata->regs + EXCITE_NANDFLASH_STATUS);
- }
- do_gettimeofday(&endtv);
- dt = (endtv.tv_sec - tv.tv_sec) * 1000000 + endtv.tv_usec - tv.tv_usec;
- pr_info(PFX "%8d us timeval\n",dt);
- pr_info(PFX "EndFlashTest\n");
-
-/* return with error to unload everything
-*/
-io_error:
- iounmap(drvdata->regs);
-
-mem_error:
- kfree(drvdata);
-
- if (err == 0)
- err = -EINVAL;
- return err;
-}
-
-static struct device_driver excite_nandflash_driver = {
- .name = "excite_nand",
- .bus = &platform_bus_type,
- .probe = excite_nandflash_probe,
- .remove = excite_nandflash_remove,
-};
-
-static int __init excite_nandflash_init(void)
-{
- pr_info(PFX "register Driver (Rev: $Revision:$)\n");
- return driver_register(&excite_nandflash_driver);
-}
-
-static void __exit excite_nandflash_exit(void)
-{
- driver_unregister(&excite_nandflash_driver);
- pr_info(PFX "Driver unregistered");
-}
-
-module_init(excite_nandflash_init);
-module_exit(excite_nandflash_exit);
-
-MODULE_AUTHOR("Thies Moeller <thies.moeller@baslerweb.com>");
-MODULE_DESCRIPTION("Basler eXcite NAND-Flash driver");
-MODULE_LICENSE("GPL");
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig
index d370528..35931be 100644
--- a/arch/mips/configs/atlas_defconfig
+++ b/arch/mips/configs/atlas_defconfig
@@ -161,6 +161,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1304,6 +1306,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index e12a475..c6a0159 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -167,6 +167,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_BKL is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -904,6 +906,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index bfade9a..e535812 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -149,6 +149,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -891,6 +893,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index 4baf2ff..adf1e8c 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -146,6 +146,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -889,6 +891,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 93cca15..4fd29ff 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1006,6 +1008,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig
index ffd9925..025b960 100644
--- a/arch/mips/configs/db1100_defconfig
+++ b/arch/mips/configs/db1100_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1006,6 +1008,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index 63eac5e..80c9dd9 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1087,6 +1089,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig
index 25a095f..6caa90b 100644
--- a/arch/mips/configs/db1500_defconfig
+++ b/arch/mips/configs/db1500_defconfig
@@ -149,6 +149,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1290,6 +1292,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index dda469c..c6cae86 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1111,6 +1113,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ddb5477_defconfig b/arch/mips/configs/ddb5477_defconfig
index fcd3dd1..72f2400 100644
--- a/arch/mips/configs/ddb5477_defconfig
+++ b/arch/mips/configs/ddb5477_defconfig
@@ -146,6 +146,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -852,6 +854,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 8683e0d..be901df 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -828,6 +830,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 4ace61c..6133c28 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig
index 5847c91..a484b7d 100644
--- a/arch/mips/configs/emma2rh_defconfig
+++ b/arch/mips/configs/emma2rh_defconfig
@@ -147,6 +147,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1180,6 +1182,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ev64120_defconfig b/arch/mips/configs/ev64120_defconfig
index bc4c4f1..21bfcde 100644
--- a/arch/mips/configs/ev64120_defconfig
+++ b/arch/mips/configs/ev64120_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -842,6 +844,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig
index eb87cbb..1a5b06c 100644
--- a/arch/mips/configs/excite_defconfig
+++ b/arch/mips/configs/excite_defconfig
@@ -149,6 +149,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1184,6 +1186,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index cc9b24e..21d53e0 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -153,6 +153,8 @@
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1147,6 +1149,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index 50092ba..e3e94c7 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -162,6 +162,8 @@
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_BKL=y
# CONFIG_MIPS_INSANE_LARGE is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -980,6 +982,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index dec2ba6..b4ab2be 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -153,6 +153,8 @@
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -922,6 +924,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/it8172_defconfig b/arch/mips/configs/it8172_defconfig
index 37f9dd7..18d20fb 100644
--- a/arch/mips/configs/it8172_defconfig
+++ b/arch/mips/configs/it8172_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -900,6 +902,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ivr_defconfig b/arch/mips/configs/ivr_defconfig
index 18874a4..99831d0 100644
--- a/arch/mips/configs/ivr_defconfig
+++ b/arch/mips/configs/ivr_defconfig
@@ -144,6 +144,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -856,6 +858,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/jaguar-atx_defconfig b/arch/mips/configs/jaguar-atx_defconfig
index 9f1e304..9d4d17a 100644
--- a/arch/mips/configs/jaguar-atx_defconfig
+++ b/arch/mips/configs/jaguar-atx_defconfig
@@ -153,6 +153,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -775,6 +777,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index fded3f7..d037466 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -143,6 +143,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_RTC_DS1742=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -872,6 +874,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/lasat200_defconfig b/arch/mips/configs/lasat200_defconfig
index 320b8cd..1db8249 100644
--- a/arch/mips/configs/lasat200_defconfig
+++ b/arch/mips/configs/lasat200_defconfig
@@ -151,6 +151,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -970,6 +972,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 0ba1ef5..aeefe28 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -170,6 +170,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1341,6 +1343,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig
index adbeead..a3cbd23b 100644
--- a/arch/mips/configs/mipssim_defconfig
+++ b/arch/mips/configs/mipssim_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -799,6 +801,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index 79fd544..6570b47 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
diff --git a/arch/mips/configs/ocelot_3_defconfig b/arch/mips/configs/ocelot_3_defconfig
index 4d87da2..440d65f 100644
--- a/arch/mips/configs/ocelot_3_defconfig
+++ b/arch/mips/configs/ocelot_3_defconfig
@@ -153,6 +153,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1091,6 +1093,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ocelot_c_defconfig b/arch/mips/configs/ocelot_c_defconfig
index a7ac2b0..c2c7ae7 100644
--- a/arch/mips/configs/ocelot_c_defconfig
+++ b/arch/mips/configs/ocelot_c_defconfig
@@ -150,6 +150,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -839,6 +841,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ocelot_defconfig b/arch/mips/configs/ocelot_defconfig
index 853e7bb..67efe27 100644
--- a/arch/mips/configs/ocelot_defconfig
+++ b/arch/mips/configs/ocelot_defconfig
@@ -154,6 +154,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -788,6 +790,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/ocelot_g_defconfig b/arch/mips/configs/ocelot_g_defconfig
index 8524efa..a10f34d 100644
--- a/arch/mips/configs/ocelot_g_defconfig
+++ b/arch/mips/configs/ocelot_g_defconfig
@@ -153,6 +153,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -842,6 +844,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 1a16e92..741f825 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -149,6 +149,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1000,6 +1002,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index 9ea8ede..8576340 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1106,6 +1108,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index c4a1589..3db7427 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -148,6 +148,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1098,6 +1100,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index 1cbf270..26b0b98 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -153,6 +153,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -876,6 +878,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/pnx8550-v2pci_defconfig b/arch/mips/configs/pnx8550-v2pci_defconfig
index bec30b1..e93266b 100644
--- a/arch/mips/configs/pnx8550-v2pci_defconfig
+++ b/arch/mips/configs/pnx8550-v2pci_defconfig
@@ -153,6 +153,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1057,6 +1059,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig
index f5f799e..9b0dab8 100644
--- a/arch/mips/configs/qemu_defconfig
+++ b/arch/mips/configs/qemu_defconfig
@@ -145,6 +145,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -733,6 +735,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig
index 2f56502..dd02960 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbhma4500_defconfig
@@ -155,6 +155,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1335,6 +1337,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index 4fee90b..d8a498d 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -158,6 +158,8 @@
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1584,6 +1586,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig
index 9041f09..805a4fe 100644
--- a/arch/mips/configs/sb1250-swarm_defconfig
+++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -171,6 +171,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_BKL=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -873,6 +875,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig
index 02abb2f..6fcb656 100644
--- a/arch/mips/configs/sead_defconfig
+++ b/arch/mips/configs/sead_defconfig
@@ -151,6 +151,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -581,6 +583,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index ca3d0c4..dc312f1 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -151,6 +151,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1059,6 +1061,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/tb0229_defconfig b/arch/mips/configs/tb0229_defconfig
index 4e2009a..85615d9 100644
--- a/arch/mips/configs/tb0229_defconfig
+++ b/arch/mips/configs/tb0229_defconfig
@@ -151,6 +151,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -968,6 +970,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index 535a813..ad7271b 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -151,6 +151,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1146,6 +1148,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index 3a3ef20..863f6a7 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -147,6 +147,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig
index e6b1dea..c10267d 100644
--- a/arch/mips/configs/wrppmc_defconfig
+++ b/arch/mips/configs/wrppmc_defconfig
@@ -155,6 +155,8 @@
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -829,6 +831,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
index 06a072b..4d3c132 100644
--- a/arch/mips/configs/yosemite_defconfig
+++ b/arch/mips/configs/yosemite_defconfig
@@ -152,6 +152,8 @@
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_BKL=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -760,6 +762,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/defconfig b/arch/mips/defconfig
index cc9b24e..21d53e0 100644
--- a/arch/mips/defconfig
+++ b/arch/mips/defconfig
@@ -153,6 +153,8 @@
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -1147,6 +1149,7 @@
#
# Kernel hacking
#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 881c467..cd9cec9 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -11,6 +11,7 @@
binfmt_irix-objs := irixelf.o irixinv.o irixioctl.o irixsig.o \
irix5sys.o sysirix.o
+obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_MODULES) += mips_ksyms.o module.o
obj-$(CONFIG_APM) += apm.o
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 37fda3d..af6ef2f 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -220,8 +220,8 @@
CLI
TRACE_IRQS_OFF
move a0, sp
- jalr v0
- j ret_from_irq
+ PTR_LA ra, ret_from_irq
+ jr v0
END(except_vec_vi_handler)
/*
@@ -349,8 +349,8 @@
.set at
__BUILD_\verbose \exception
move a0, sp
- jal do_\handler
- j ret_from_exception
+ PTR_LA ra, ret_from_exception
+ j do_\handler
END(handle_\exception)
.endm
diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index ea36c8e..48e3418 100644
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -302,11 +302,11 @@
};
static struct resource pic1_io_resource = {
- .name = "pic1", .start = 0x20, .end = 0x3f, .flags = IORESOURCE_BUSY
+ .name = "pic1", .start = 0x20, .end = 0x21, .flags = IORESOURCE_BUSY
};
static struct resource pic2_io_resource = {
- .name = "pic2", .start = 0xa0, .end = 0xbf, .flags = IORESOURCE_BUSY
+ .name = "pic2", .start = 0xa0, .end = 0xa1, .flags = IORESOURCE_BUSY
};
/*
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 43b1162..52cada4 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -1039,7 +1039,7 @@
int ret = 0;
down_read(&uts_sem);
- if (copy_to_user(name,&system_utsname,sizeof *name))
+ if (copy_to_user(name, utsname(), sizeof *name))
ret = -EFAULT;
up_read(&uts_sem);
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 2613a0d..045d987 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -40,6 +40,7 @@
#include <asm/elf.h>
#include <asm/isadep.h>
#include <asm/inst.h>
+#include <asm/stacktrace.h>
#ifdef CONFIG_MIPS_MT_SMTC
#include <asm/mipsmtregs.h>
extern void smtc_idle_loop_hook(void);
@@ -398,7 +399,7 @@
#ifdef CONFIG_KALLSYMS
/* used by show_backtrace() */
unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
- unsigned long pc, unsigned long ra)
+ unsigned long pc, unsigned long *ra)
{
unsigned long stack_page;
struct mips_frame_info info;
@@ -406,18 +407,42 @@
char namebuf[KSYM_NAME_LEN + 1];
unsigned long size, ofs;
int leaf;
+ extern void ret_from_irq(void);
+ extern void ret_from_exception(void);
stack_page = (unsigned long)task_stack_page(task);
if (!stack_page)
return 0;
+ /*
+ * If we reached the bottom of interrupt context,
+ * return saved pc in pt_regs.
+ */
+ if (pc == (unsigned long)ret_from_irq ||
+ pc == (unsigned long)ret_from_exception) {
+ struct pt_regs *regs;
+ if (*sp >= stack_page &&
+ *sp + sizeof(*regs) <= stack_page + THREAD_SIZE - 32) {
+ regs = (struct pt_regs *)*sp;
+ pc = regs->cp0_epc;
+ if (__kernel_text_address(pc)) {
+ *sp = regs->regs[29];
+ *ra = regs->regs[31];
+ return pc;
+ }
+ }
+ return 0;
+ }
if (!kallsyms_lookup(pc, &size, &ofs, &modname, namebuf))
return 0;
/*
* Return ra if an exception occured at the first instruction
*/
- if (unlikely(ofs == 0))
- return ra;
+ if (unlikely(ofs == 0)) {
+ pc = *ra;
+ *ra = 0;
+ return pc;
+ }
info.func = (void *)(pc - ofs);
info.func_size = ofs; /* analyze from start to ofs */
@@ -436,11 +461,12 @@
* one. In that cases avoid to return always the
* same value.
*/
- pc = pc != ra ? ra : 0;
+ pc = pc != *ra ? *ra : 0;
else
pc = ((unsigned long *)(*sp))[info.pc_offset];
*sp += info.frame_size;
+ *ra = 0;
return __kernel_text_address(pc) ? pc : 0;
}
#endif
@@ -453,6 +479,7 @@
unsigned long pc = 0;
#ifdef CONFIG_KALLSYMS
unsigned long sp;
+ unsigned long ra = 0;
#endif
if (!task || task == current || task->state == TASK_RUNNING)
@@ -466,7 +493,7 @@
sp = task->thread.reg29 + schedule_mfi.frame_size;
while (in_sched_functions(pc))
- pc = unwind_stack(task, &sp, pc, 0);
+ pc = unwind_stack(task, &sp, pc, &ra);
#endif
out:
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index e717851..61362e6 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -28,18 +28,7 @@
NESTED(handle_sys, PT_SIZE, sp)
.set noat
SAVE_SOME
-#ifdef CONFIG_TRACE_IRQFLAGS
- TRACE_IRQS_ON
-#ifdef CONFIG_64BIT
- LONG_L $8, PT_R8(sp)
- LONG_L $9, PT_R9(sp)
-#endif
- LONG_L $7, PT_R7(sp)
- LONG_L $6, PT_R6(sp)
- LONG_L $5, PT_R5(sp)
- LONG_L $4, PT_R4(sp)
- LONG_L $2, PT_R2(sp)
-#endif
+ TRACE_IRQS_ON_RELOAD
STI
.set at
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 4c22d0b..6c7b5ed 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -34,7 +34,7 @@
*/
.set noat
SAVE_SOME
- TRACE_IRQS_ON
+ TRACE_IRQS_ON_RELOAD
STI
.set at
#endif
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index f25c2a2..6d9f187 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -33,7 +33,7 @@
#ifndef CONFIG_MIPS32_O32
.set noat
SAVE_SOME
- TRACE_IRQS_ON
+ TRACE_IRQS_ON_RELOAD
STI
.set at
#endif
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 288ee4a..2e6d067 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -28,7 +28,7 @@
NESTED(handle_sys, PT_SIZE, sp)
.set noat
SAVE_SOME
- TRACE_IRQS_ON
+ TRACE_IRQS_ON_RELOAD
STI
.set at
ld t1, PT_EPC(sp) # skip syscall on return
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 50c17ea..477c533 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -42,8 +42,6 @@
#include "signal-common.h"
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
/*
* Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
*/
@@ -83,6 +81,8 @@
#endif
};
+extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
+
save_static_function(sysn32_rt_sigsuspend);
__attribute_used__ noinline static int
_sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
new file mode 100644
index 0000000..4aabe52
--- /dev/null
+++ b/arch/mips/kernel/stacktrace.c
@@ -0,0 +1,85 @@
+/*
+ * arch/mips/kernel/stacktrace.c
+ *
+ * Stack trace management functions
+ *
+ * Copyright (C) 2006 Atsushi Nemoto <anemo@mba.ocn.ne.jp>
+ */
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+#include <asm/stacktrace.h>
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer:
+ */
+static void save_raw_context_stack(struct stack_trace *trace,
+ unsigned long reg29)
+{
+ unsigned long *sp = (unsigned long *)reg29;
+ unsigned long addr;
+
+ while (!kstack_end(sp)) {
+ addr = *sp++;
+ if (__kernel_text_address(addr)) {
+ if (trace->skip > 0)
+ trace->skip--;
+ else
+ trace->entries[trace->nr_entries++] = addr;
+ if (trace->nr_entries >= trace->max_entries)
+ break;
+ }
+ }
+}
+
+static void save_context_stack(struct stack_trace *trace,
+ struct task_struct *task, struct pt_regs *regs)
+{
+ unsigned long sp = regs->regs[29];
+#ifdef CONFIG_KALLSYMS
+ unsigned long ra = regs->regs[31];
+ unsigned long pc = regs->cp0_epc;
+
+ if (raw_show_trace || !__kernel_text_address(pc)) {
+ unsigned long stack_page =
+ (unsigned long)task_stack_page(task);
+ if (stack_page && sp >= stack_page &&
+ sp <= stack_page + THREAD_SIZE - 32)
+ save_raw_context_stack(trace, sp);
+ return;
+ }
+ do {
+ if (trace->skip > 0)
+ trace->skip--;
+ else
+ trace->entries[trace->nr_entries++] = pc;
+ if (trace->nr_entries >= trace->max_entries)
+ break;
+ pc = unwind_stack(task, &sp, pc, &ra);
+ } while (pc);
+#else
+ save_raw_context_stack(sp);
+#endif
+}
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+{
+ struct pt_regs dummyregs;
+ struct pt_regs *regs = &dummyregs;
+
+ WARN_ON(trace->nr_entries || !trace->max_entries);
+
+ if (task && task != current) {
+ regs->regs[29] = task->thread.reg29;
+ regs->regs[31] = 0;
+ regs->cp0_epc = task->thread.reg31;
+ } else {
+ if (!task)
+ task = current;
+ prepare_frametrace(regs);
+ }
+
+ save_context_stack(trace, task, regs);
+}
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 9951240..26e1a7e 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -231,7 +231,7 @@
*/
asmlinkage int sys_uname(struct old_utsname __user * name)
{
- if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
+ if (name && !copy_to_user(name, utsname(), sizeof (*name)))
return 0;
return -EFAULT;
}
@@ -248,16 +248,21 @@
if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
return -EFAULT;
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
- error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
- error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
- error -= __put_user(0,name->release+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
- error -= __put_user(0,name->version+__OLD_UTS_LEN);
- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
- error = __put_user(0,name->machine+__OLD_UTS_LEN);
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->sysname + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->nodename, &utsname()->nodename,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->nodename + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->release, &utsname()->release,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->release + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->version, &utsname()->version,
+ __OLD_UTS_LEN);
+ error -= __put_user(0, name->version + __OLD_UTS_LEN);
+ error -= __copy_to_user(&name->machine, &utsname()->machine,
+ __OLD_UTS_LEN);
+ error = __put_user(0, name->machine + __OLD_UTS_LEN);
error = error ? -EFAULT : 0;
return error;
@@ -401,3 +406,32 @@
{
do_exit(SIGSEGV);
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register unsigned long __a0 asm("$4") = (unsigned long) filename;
+ register unsigned long __a1 asm("$5") = (unsigned long) argv;
+ register unsigned long __a2 asm("$6") = (unsigned long) envp;
+ register unsigned long __a3 asm("$7");
+ unsigned long __v0;
+
+ __asm__ volatile (" \n"
+ " .set noreorder \n"
+ " li $2, %5 # __NR_execve \n"
+ " syscall \n"
+ " move %0, $2 \n"
+ " .set reorder \n"
+ : "=&r" (__v0), "=r" (__a3)
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_execve)
+ : "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24",
+ "memory");
+
+ if (__a3 == 0)
+ return __v0;
+
+ return -__v0;
+}
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 1137dd6..11bb971 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -884,7 +884,7 @@
down_read(&uts_sem);
if (len > __NEW_UTS_LEN)
len = __NEW_UTS_LEN;
- err = copy_to_user(name, system_utsname.domainname, len) ? -EFAULT : 0;
+ err = copy_to_user(name, utsname()->domainname, len) ? -EFAULT : 0;
up_read(&uts_sem);
return err;
@@ -1127,11 +1127,11 @@
asmlinkage int irix_uname(struct iuname __user *buf)
{
down_read(&uts_sem);
- if (copy_from_user(system_utsname.sysname, buf->sysname, 65)
- || copy_from_user(system_utsname.nodename, buf->nodename, 65)
- || copy_from_user(system_utsname.release, buf->release, 65)
- || copy_from_user(system_utsname.version, buf->version, 65)
- || copy_from_user(system_utsname.machine, buf->machine, 65)) {
+ if (copy_from_user(utsname()->sysname, buf->sysname, 65)
+ || copy_from_user(utsname()->nodename, buf->nodename, 65)
+ || copy_from_user(utsname()->release, buf->release, 65)
+ || copy_from_user(utsname()->version, buf->version, 65)
+ || copy_from_user(utsname()->machine, buf->machine, 65)) {
return -EFAULT;
}
up_read(&uts_sem);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index e51d8fd..b7292a5 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -41,6 +41,7 @@
#include <asm/mmu_context.h>
#include <asm/watch.h>
#include <asm/types.h>
+#include <asm/stacktrace.h>
extern asmlinkage void handle_int(void);
extern asmlinkage void handle_tlbm(void);
@@ -92,16 +93,14 @@
}
#ifdef CONFIG_KALLSYMS
-static int raw_show_trace;
+int raw_show_trace;
static int __init set_raw_show_trace(char *str)
{
raw_show_trace = 1;
return 1;
}
__setup("raw_show_trace", set_raw_show_trace);
-
-extern unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
- unsigned long pc, unsigned long ra);
+#endif
static void show_backtrace(struct task_struct *task, struct pt_regs *regs)
{
@@ -116,14 +115,10 @@
printk("Call Trace:\n");
do {
print_ip_sym(pc);
- pc = unwind_stack(task, &sp, pc, ra);
- ra = 0;
+ pc = unwind_stack(task, &sp, pc, &ra);
} while (pc);
printk("\n");
}
-#else
-#define show_backtrace(task, r) show_raw_backtrace((r)->regs[29]);
-#endif
/*
* This routine abuses get_user()/put_user() to reference pointers
@@ -158,28 +153,6 @@
show_backtrace(task, regs);
}
-static __always_inline void prepare_frametrace(struct pt_regs *regs)
-{
- __asm__ __volatile__(
- ".set push\n\t"
- ".set noat\n\t"
-#ifdef CONFIG_64BIT
- "1: dla $1, 1b\n\t"
- "sd $1, %0\n\t"
- "sd $29, %1\n\t"
- "sd $31, %2\n\t"
-#else
- "1: la $1, 1b\n\t"
- "sw $1, %0\n\t"
- "sw $29, %1\n\t"
- "sw $31, %2\n\t"
-#endif
- ".set pop\n\t"
- : "=m" (regs->cp0_epc),
- "=m" (regs->regs[29]), "=m" (regs->regs[31])
- : : "memory");
-}
-
void show_stack(struct task_struct *task, unsigned long *sp)
{
struct pt_regs regs;
@@ -206,11 +179,6 @@
{
struct pt_regs regs;
- /*
- * Remove any garbage that may be in regs (specially func
- * addresses) to avoid show_raw_backtrace() to report them
- */
- memset(®s, 0, sizeof(regs));
prepare_frametrace(®s);
show_backtrace(current, ®s);
}
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c
index e1f35ef..d1af42c 100644
--- a/arch/mips/mm/c-r3k.c
+++ b/arch/mips/mm/c-r3k.c
@@ -268,26 +268,6 @@
{
}
-static void r3k_flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
- struct mm_struct *mm = vma->vm_mm;
- unsigned long physpage;
-
- if (cpu_context(smp_processor_id(), mm) == 0)
- return;
-
- if (!(vma->vm_flags & VM_EXEC))
- return;
-
-#ifdef DEBUG_CACHE
- printk("cpage[%d,%08lx]", cpu_context(smp_processor_id(), mm), page);
-#endif
-
- physpage = (unsigned long) page_address(page);
- if (physpage)
- r3k_flush_icache_range(physpage, physpage + PAGE_SIZE);
-}
-
static void r3k_flush_cache_sigtramp(unsigned long addr)
{
unsigned long flags;
@@ -335,7 +315,6 @@
flush_cache_mm = r3k_flush_cache_mm;
flush_cache_range = r3k_flush_cache_range;
flush_cache_page = r3k_flush_cache_page;
- __flush_icache_page = r3k_flush_icache_page;
flush_icache_range = r3k_flush_icache_range;
flush_cache_sigtramp = r3k_flush_cache_sigtramp;
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 0b2da53..cc895da 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -551,82 +551,6 @@
instruction_hazard();
}
-/*
- * Ok, this seriously sucks. We use them to flush a user page but don't
- * know the virtual address, so we have to blast away the whole icache
- * which is significantly more expensive than the real thing. Otoh we at
- * least know the kernel address of the page so we can flush it
- * selectivly.
- */
-
-struct flush_icache_page_args {
- struct vm_area_struct *vma;
- struct page *page;
-};
-
-static inline void local_r4k_flush_icache_page(void *args)
-{
- struct flush_icache_page_args *fip_args = args;
- struct vm_area_struct *vma = fip_args->vma;
- struct page *page = fip_args->page;
-
- /*
- * Tricky ... Because we don't know the virtual address we've got the
- * choice of either invalidating the entire primary and secondary
- * caches or invalidating the secondary caches also. With the subset
- * enforcment on R4000SC, R4400SC, R10000 and R12000 invalidating the
- * secondary cache will result in any entries in the primary caches
- * also getting invalidated which hopefully is a bit more economical.
- */
- if (cpu_has_inclusive_pcaches) {
- unsigned long addr = (unsigned long) page_address(page);
-
- r4k_blast_scache_page(addr);
- ClearPageDcacheDirty(page);
-
- return;
- }
-
- if (!cpu_has_ic_fills_f_dc) {
- unsigned long addr = (unsigned long) page_address(page);
- r4k_blast_dcache_page(addr);
- if (!cpu_icache_snoops_remote_store)
- r4k_blast_scache_page(addr);
- ClearPageDcacheDirty(page);
- }
-
- /*
- * We're not sure of the virtual address(es) involved here, so
- * we have to flush the entire I-cache.
- */
- if (cpu_has_vtag_icache && vma->vm_mm == current->active_mm) {
- int cpu = smp_processor_id();
-
- if (cpu_context(cpu, vma->vm_mm) != 0)
- drop_mmu_context(vma->vm_mm, cpu);
- } else
- r4k_blast_icache();
-}
-
-static void r4k_flush_icache_page(struct vm_area_struct *vma,
- struct page *page)
-{
- struct flush_icache_page_args args;
-
- /*
- * If there's no context yet, or the page isn't executable, no I-cache
- * flush is needed.
- */
- if (!(vma->vm_flags & VM_EXEC))
- return;
-
- args.vma = vma;
- args.page = page;
-
- r4k_on_each_cpu(local_r4k_flush_icache_page, &args, 1, 1);
-}
-
-
#ifdef CONFIG_DMA_NONCOHERENT
static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
@@ -1291,7 +1215,6 @@
__flush_cache_all = r4k___flush_cache_all;
flush_cache_mm = r4k_flush_cache_mm;
flush_cache_page = r4k_flush_cache_page;
- __flush_icache_page = r4k_flush_icache_page;
flush_cache_range = r4k_flush_cache_range;
flush_cache_sigtramp = r4k_flush_cache_sigtramp;
diff --git a/arch/mips/mm/c-sb1.c b/arch/mips/mm/c-sb1.c
index 16bad7c..5537558 100644
--- a/arch/mips/mm/c-sb1.c
+++ b/arch/mips/mm/c-sb1.c
@@ -307,66 +307,6 @@
#endif
/*
- * Flush the icache for a given physical page. Need to writeback the
- * dcache first, then invalidate the icache. If the page isn't
- * executable, nothing is required.
- */
-static void local_sb1_flush_icache_page(struct vm_area_struct *vma,
- struct page *page)
-{
- unsigned long start;
- int cpu = smp_processor_id();
-
-#ifndef CONFIG_SMP
- if (!(vma->vm_flags & VM_EXEC))
- return;
-#endif
-
- /* Need to writeback any dirty data for that page, we have the PA */
- start = (unsigned long)(page-mem_map) << PAGE_SHIFT;
- __sb1_writeback_inv_dcache_phys_range(start, start + PAGE_SIZE);
- /*
- * If there's a context, bump the ASID (cheaper than a flush,
- * since we don't know VAs!)
- */
- if (vma->vm_mm == current->active_mm) {
- if (cpu_context(cpu, vma->vm_mm) != 0)
- drop_mmu_context(vma->vm_mm, cpu);
- } else
- __sb1_flush_icache_range(start, start + PAGE_SIZE);
-
-}
-
-#ifdef CONFIG_SMP
-struct flush_icache_page_args {
- struct vm_area_struct *vma;
- struct page *page;
-};
-
-static void sb1_flush_icache_page_ipi(void *info)
-{
- struct flush_icache_page_args *args = info;
- local_sb1_flush_icache_page(args->vma, args->page);
-}
-
-/* Dirty dcache could be on another CPU, so do the IPIs */
-static void sb1_flush_icache_page(struct vm_area_struct *vma,
- struct page *page)
-{
- struct flush_icache_page_args args;
-
- if (!(vma->vm_flags & VM_EXEC))
- return;
- args.vma = vma;
- args.page = page;
- on_each_cpu(sb1_flush_icache_page_ipi, (void *) &args, 1, 1);
-}
-#else
-void sb1_flush_icache_page(struct vm_area_struct *vma, struct page *page)
- __attribute__((alias("local_sb1_flush_icache_page")));
-#endif
-
-/*
* A signal trampoline must fit into a single cacheline.
*/
static void local_sb1_flush_cache_sigtramp(unsigned long addr)
@@ -526,7 +466,6 @@
/* These routines are for Icache coherence with the Dcache */
flush_icache_range = sb1_flush_icache_range;
- __flush_icache_page = sb1_flush_icache_page;
flush_icache_all = __sb1_flush_icache_all; /* local only */
/* This implies an Icache flush too, so can't be nop'ed */
diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c
index 932a09d..f32ebde 100644
--- a/arch/mips/mm/c-tx39.c
+++ b/arch/mips/mm/c-tx39.c
@@ -248,33 +248,6 @@
}
}
-/*
- * Ok, this seriously sucks. We use them to flush a user page but don't
- * know the virtual address, so we have to blast away the whole icache
- * which is significantly more expensive than the real thing. Otoh we at
- * least know the kernel address of the page so we can flush it
- * selectivly.
- */
-static void tx39_flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
- unsigned long addr;
- /*
- * If there's no context yet, or the page isn't executable, no icache
- * flush is needed.
- */
- if (!(vma->vm_flags & VM_EXEC))
- return;
-
- addr = (unsigned long) page_address(page);
- tx39_blast_dcache_page(addr);
-
- /*
- * We're not sure of the virtual address(es) involved here, so
- * we have to flush the entire I-cache.
- */
- tx39_blast_icache();
-}
-
static void tx39_dma_cache_wback_inv(unsigned long addr, unsigned long size)
{
unsigned long end;
@@ -382,7 +355,6 @@
flush_cache_mm = (void *) tx39h_flush_icache_all;
flush_cache_range = (void *) tx39h_flush_icache_all;
flush_cache_page = (void *) tx39h_flush_icache_all;
- __flush_icache_page = (void *) tx39h_flush_icache_all;
flush_icache_range = (void *) tx39h_flush_icache_all;
flush_cache_sigtramp = (void *) tx39h_flush_icache_all;
@@ -408,7 +380,6 @@
flush_cache_mm = tx39_flush_cache_mm;
flush_cache_range = tx39_flush_cache_range;
flush_cache_page = tx39_flush_cache_page;
- __flush_icache_page = tx39_flush_icache_page;
flush_icache_range = tx39_flush_icache_range;
flush_cache_sigtramp = tx39_flush_cache_sigtramp;
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 40c8b02..caf807d 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -25,7 +25,6 @@
void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page,
unsigned long pfn);
void (*flush_icache_range)(unsigned long start, unsigned long end);
-void (*__flush_icache_page)(struct vm_area_struct *vma, struct page *page);
/* MIPS specific cache operations */
void (*flush_cache_sigtramp)(unsigned long addr);
diff --git a/arch/mips/mm/tlbex-fault.S b/arch/mips/mm/tlbex-fault.S
index 9e7f417..e99eaa1 100644
--- a/arch/mips/mm/tlbex-fault.S
+++ b/arch/mips/mm/tlbex-fault.S
@@ -19,8 +19,8 @@
move a0, sp
REG_S a2, PT_BVADDR(sp)
li a1, \write
- jal do_page_fault
- j ret_from_exception
+ PTR_LA ra, ret_from_exception
+ j do_page_fault
END(tlb_do_page_fault_\write)
.endm
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 8134220..7a941ec 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -123,7 +123,8 @@
if (machine_state & MACHINE_PANICED)
return;
- if ((machine_state & MACHINE_SHUTTING_DOWN) || kill_proc(1,SIGINT,1)) {
+ if ((machine_state & MACHINE_SHUTTING_DOWN) ||
+ kill_cad_pid(SIGINT, 1)) {
/* No init process or button pressed twice. */
sgi_machine_power_off();
}
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index 79ddb46..fd0932b 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -120,7 +120,7 @@
if (has_panicked)
return;
- if (shuting_down || kill_proc(1, SIGINT, 1)) {
+ if (shuting_down || kill_cad_pid(SIGINT, 1)) {
/* No init process or button pressed twice. */
ip32_machine_power_off();
}
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index cb69727..2e2dc4f 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -266,16 +266,21 @@
down_read(&uts_sem);
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,HPUX_UTSLEN-1);
- error |= __put_user(0,name->sysname+HPUX_UTSLEN-1);
- error |= __copy_to_user(&name->nodename,&system_utsname.nodename,HPUX_UTSLEN-1);
- error |= __put_user(0,name->nodename+HPUX_UTSLEN-1);
- error |= __copy_to_user(&name->release,&system_utsname.release,HPUX_UTSLEN-1);
- error |= __put_user(0,name->release+HPUX_UTSLEN-1);
- error |= __copy_to_user(&name->version,&system_utsname.version,HPUX_UTSLEN-1);
- error |= __put_user(0,name->version+HPUX_UTSLEN-1);
- error |= __copy_to_user(&name->machine,&system_utsname.machine,HPUX_UTSLEN-1);
- error |= __put_user(0,name->machine+HPUX_UTSLEN-1);
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
+ HPUX_UTSLEN - 1);
+ error |= __put_user(0, name->sysname + HPUX_UTSLEN - 1);
+ error |= __copy_to_user(&name->nodename, &utsname()->nodename,
+ HPUX_UTSLEN - 1);
+ error |= __put_user(0, name->nodename + HPUX_UTSLEN - 1);
+ error |= __copy_to_user(&name->release, &utsname()->release,
+ HPUX_UTSLEN - 1);
+ error |= __put_user(0, name->release + HPUX_UTSLEN - 1);
+ error |= __copy_to_user(&name->version, &utsname()->version,
+ HPUX_UTSLEN - 1);
+ error |= __put_user(0, name->version + HPUX_UTSLEN - 1);
+ error |= __copy_to_user(&name->machine, &utsname()->machine,
+ HPUX_UTSLEN - 1);
+ error |= __put_user(0, name->machine + HPUX_UTSLEN - 1);
up_read(&uts_sem);
@@ -373,8 +378,8 @@
/* TODO: print a warning about using this? */
down_write(&uts_sem);
error = -EFAULT;
- if (!copy_from_user(system_utsname.sysname, ubuf, len)) {
- system_utsname.sysname[len] = 0;
+ if (!copy_from_user(utsname()->sysname, ubuf, len)) {
+ utsname()->sysname[len] = 0;
error = 0;
}
up_write(&uts_sem);
@@ -400,8 +405,8 @@
/* TODO: print a warning about this? */
down_write(&uts_sem);
error = -EFAULT;
- if (!copy_from_user(system_utsname.release, ubuf, len)) {
- system_utsname.release[len] = 0;
+ if (!copy_from_user(utsname()->release, ubuf, len)) {
+ utsname()->release[len] = 0;
error = 0;
}
up_write(&uts_sem);
@@ -422,13 +427,13 @@
down_read(&uts_sem);
- nlen = strlen(system_utsname.domainname) + 1;
+ nlen = strlen(utsname()->domainname) + 1;
if (nlen < len)
len = nlen;
if(len > __NEW_UTS_LEN)
goto done;
- if(copy_to_user(name, system_utsname.domainname, len))
+ if(copy_to_user(name, utsname()->domainname, len))
goto done;
err = 0;
done:
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0b485ef..2f9f9df 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -368,7 +368,14 @@
return error;
}
-unsigned long
+extern int __execve(const char *filename, char *const argv[],
+ char *const envp[], struct task_struct *task);
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ return __execve(filename, argv, envp, current);
+}
+
+unsigned long
get_wchan(struct task_struct *p)
{
struct unwind_frame_info info;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a0dd1b0..032e6ab 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1069,7 +1069,7 @@
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on PPC64 && EXPERIMENTAL && MODULES
+ depends on PPC64 && KALLSYMS && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index cd65c36..7b8d12b 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -259,14 +259,15 @@
*/
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
- struct kretprobe_instance *ri = NULL;
- struct hlist_head *head;
- struct hlist_node *node, *tmp;
+ struct kretprobe_instance *ri = NULL;
+ struct hlist_head *head, empty_rp;
+ struct hlist_node *node, *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
- head = kretprobe_inst_table_head(current);
+ head = kretprobe_inst_table_head(current);
/*
* It is possible to have multiple instances associated with a given
@@ -277,20 +278,20 @@
* We can handle this because:
* - instances are always inserted at the head of the list
* - when multiple return probes are registered for the same
- * function, the first instance's ret_addr will point to the
+ * function, the first instance's ret_addr will point to the
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
- if (ri->task != current)
+ if (ri->task != current)
/* another task is sharing our hash bucket */
- continue;
+ continue;
if (ri->rp && ri->rp->handler)
ri->rp->handler(ri, regs);
orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri);
+ recycle_rp_inst(ri, &empty_rp);
if (orig_ret_address != trampoline_address)
/*
@@ -308,12 +309,16 @@
spin_unlock_irqrestore(&kretprobe_lock, flags);
preempt_enable_no_resched();
- /*
- * By returning a non-zero value, we are telling
- * kprobe_handler() that we don't want the post_handler
- * to run (and have re-enabled preemption)
- */
- return 1;
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
+ /*
+ * By returning a non-zero value, we are telling
+ * kprobe_handler() that we don't want the post_handler
+ * to run (and have re-enabled preemption)
+ */
+ return 1;
}
/*
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 58758d8..88fd73f 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -843,7 +843,7 @@
addi r1,r1,16
blr
-_GLOBAL(execve)
+_GLOBAL(kernel_execve)
li r0,__NR_execve
sc
bnslr
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index e3ed21c..9c54ecc 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -556,7 +556,7 @@
#endif /* CONFIG_ALTIVEC */
-_GLOBAL(execve)
+_GLOBAL(kernel_execve)
li r0,__NR_execve
sc
bnslr
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a127a1e..7b2f645 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -424,7 +424,7 @@
printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
regs->nip, regs->link, regs->ctr);
printk("REGS: %p TRAP: %04lx %s (%s)\n",
- regs, regs->trap, print_tainted(), system_utsname.release);
+ regs, regs->trap, print_tainted(), init_utsname()->release);
printk("MSR: "REG" ", regs->msr);
printbits(regs->msr, msr_bits);
printk(" CR: %08lX XER: %08lX\n", regs->ccr, regs->xer);
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 962ad5e..cda2dbe 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -414,7 +414,7 @@
smp_release_cpus();
#endif
- printk("Starting Linux PPC64 %s\n", system_utsname.version);
+ printk("Starting Linux PPC64 %s\n", init_utsname()->version);
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 9b69d99..d358866 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -260,7 +260,7 @@
int err = 0;
down_read(&uts_sem);
- if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ if (copy_to_user(name, utsname(), sizeof(*name)))
err = -EFAULT;
up_read(&uts_sem);
if (!err)
@@ -273,7 +273,7 @@
int err = 0;
down_read(&uts_sem);
- if (copy_to_user(name, &system_utsname, sizeof(*name)))
+ if (copy_to_user(name, utsname(), sizeof(*name)))
err = -EFAULT;
up_read(&uts_sem);
if (!err)
@@ -289,19 +289,19 @@
return -EFAULT;
down_read(&uts_sem);
- error = __copy_to_user(&name->sysname, &system_utsname.sysname,
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
__OLD_UTS_LEN);
error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->nodename, &system_utsname.nodename,
+ error |= __copy_to_user(&name->nodename, &utsname()->nodename,
__OLD_UTS_LEN);
error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->release, &system_utsname.release,
+ error |= __copy_to_user(&name->release, &utsname()->release,
__OLD_UTS_LEN);
error |= __put_user(0, name->release + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->version, &system_utsname.version,
+ error |= __copy_to_user(&name->version, &utsname()->version,
__OLD_UTS_LEN);
error |= __put_user(0, name->version + __OLD_UTS_LEN);
- error |= __copy_to_user(&name->machine, &system_utsname.machine,
+ error |= __copy_to_user(&name->machine, &utsname()->machine,
__OLD_UTS_LEN);
error |= override_machine(name->machine);
up_read(&uts_sem);
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 1a2c2a5..1983b64 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -357,7 +357,7 @@
*/
static int shutdown(void)
{
- int rc = kill_proc(1, SIGINT, 1);
+ int rc = kill_cad_pid(SIGINT, 1);
if (rc) {
printk(KERN_ALERT "mf.c: SIGINT to init failed (%d), "
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8ed3621..98189d8 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -342,7 +342,7 @@
{
/* Manually leave the kernel version on the panel. */
ppc_md.progress("Linux ppc64\n", 0);
- ppc_md.progress(system_utsname.release, 0);
+ ppc_md.progress(init_utsname()->version, 0);
return 0;
}
diff --git a/arch/ppc/4xx_io/serial_sicc.c b/arch/ppc/4xx_io/serial_sicc.c
index b81a367..87fe9a8 100644
--- a/arch/ppc/4xx_io/serial_sicc.c
+++ b/arch/ppc/4xx_io/serial_sicc.c
@@ -1720,7 +1720,7 @@
return 0;
}
-static struct tty_operations sicc_ops = {
+static const struct tty_operations sicc_ops = {
.open = siccuart_open,
.close = siccuart_close,
.write = siccuart_write,
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 50b4bbd..5f66840 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -942,20 +942,16 @@
addi r1,r1,16
blr
+_GLOBAL(kernel_execve)
+ li r0,__NR_execve
+ sc
+ bnslr
+ neg r3,r3
+ blr
+
/*
* This routine is just here to keep GCC happy - sigh...
*/
_GLOBAL(__main)
blr
-#define SYSCALL(name) \
-_GLOBAL(name) \
- li r0,__NR_##name; \
- sc; \
- bnslr; \
- lis r4,errno@ha; \
- stw r3,errno@l(r4); \
- li r3,-1; \
- blr
-
-SYSCALL(execve)
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index ca28fb0..4d9ff5c 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -369,11 +369,12 @@
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
- struct hlist_head *head;
+ struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
head = kretprobe_inst_table_head(current);
@@ -399,7 +400,7 @@
ri->rp->handler(ri, regs);
orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri);
+ recycle_rp_inst(ri, &empty_rp);
if (orig_ret_address != trampoline_address) {
/*
@@ -417,6 +418,10 @@
spin_unlock_irqrestore(&kretprobe_lock, flags);
preempt_enable_no_resched();
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
/*
* By returning a non-zero value, we are telling
* kprobe_handler() that we don't want the post_handler
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index e351780..584ed95 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -27,6 +27,7 @@
#include <linux/file.h>
#include <linux/utsname.h>
#include <linux/personality.h>
+#include <linux/unistd.h>
#include <asm/uaccess.h>
#include <asm/ipc.h>
@@ -266,3 +267,22 @@
return sys_fadvise64_64(a.fd, a.offset, a.len, a.advice);
}
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register const char *__arg1 asm("2") = filename;
+ register char *const*__arg2 asm("3") = argv;
+ register char *const*__arg3 asm("4") = envp;
+ register long __svcres asm("2");
+ asm volatile(
+ "svc %b1"
+ : "=d" (__svcres)
+ : "i" (__NR_execve),
+ "0" (__arg1),
+ "d" (__arg2),
+ "d" (__arg3) : "memory");
+ return __svcres;
+}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 5f58733..77491cf 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -459,7 +459,7 @@
seq_printf(m, "machine\t\t: %s\n", get_system_type());
seq_printf(m, "processor\t: %d\n", cpu);
- seq_printf(m, "cpu family\t: %s\n", system_utsname.machine);
+ seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
show_cpuflags(m);
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 6c0fb7c..dbebadd 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -42,6 +42,7 @@
EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_online_map;
+EXPORT_SYMBOL(cpu_online_map);
static atomic_t cpus_booted = ATOMIC_INIT(0);
/* These are defined by the board-specific code. */
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index b68ff70..8fde950 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -25,6 +25,7 @@
#include <asm/cacheflush.h>
#include <asm/uaccess.h>
#include <asm/ipc.h>
+#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -281,7 +282,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}
@@ -309,3 +310,19 @@
(u64)len0 << 32 | len1, advice);
#endif
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register long __sc0 __asm__ ("r3") = __NR_execve;
+ register long __sc4 __asm__ ("r4") = (long) filename;
+ register long __sc5 __asm__ ("r5") = (long) argv;
+ register long __sc6 __asm__ ("r6") = (long) envp;
+ __asm__ __volatile__ ("trapa #0x13" : "=z" (__sc0)
+ : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6)
+ : "memory");
+ return __sc0;
+}
diff --git a/arch/sh64/kernel/process.c b/arch/sh64/kernel/process.c
index db475b7..525d0ec 100644
--- a/arch/sh64/kernel/process.c
+++ b/arch/sh64/kernel/process.c
@@ -20,261 +20,16 @@
/*
* This file handles the architecture-dependent parts of process handling..
*/
-
-/* Temporary flags/tests. All to be removed/undefined. BEGIN */
-#define IDLE_TRACE
-#define VM_SHOW_TABLES
-#define VM_TEST_FAULT
-#define VM_TEST_RTLBMISS
-#define VM_TEST_WTLBMISS
-
-#undef VM_SHOW_TABLES
-#undef IDLE_TRACE
-/* Temporary flags/tests. All to be removed/undefined. END */
-
-#define __KERNEL_SYSCALLS__
-#include <stdarg.h>
-
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/interrupt.h>
-#include <linux/unistd.h>
-#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/init.h>
-
+#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/processor.h> /* includes also <asm/registers.h> */
-#include <asm/mmu_context.h>
-#include <asm/elf.h>
-#include <asm/page.h>
-
-#include <linux/irq.h>
struct task_struct *last_task_used_math = NULL;
-#ifdef IDLE_TRACE
-#ifdef VM_SHOW_TABLES
-/* For testing */
-static void print_PTE(long base)
-{
- int i, skip=0;
- long long x, y, *p = (long long *) base;
-
- for (i=0; i< 512; i++, p++){
- if (*p == 0) {
- if (!skip) {
- skip++;
- printk("(0s) ");
- }
- } else {
- skip=0;
- x = (*p) >> 32;
- y = (*p) & 0xffffffff;
- printk("%08Lx%08Lx ", x, y);
- if (!((i+1)&0x3)) printk("\n");
- }
- }
-}
-
-/* For testing */
-static void print_DIR(long base)
-{
- int i, skip=0;
- long *p = (long *) base;
-
- for (i=0; i< 512; i++, p++){
- if (*p == 0) {
- if (!skip) {
- skip++;
- printk("(0s) ");
- }
- } else {
- skip=0;
- printk("%08lx ", *p);
- if (!((i+1)&0x7)) printk("\n");
- }
- }
-}
-
-/* For testing */
-static void print_vmalloc_first_tables(void)
-{
-
-#define PRESENT 0x800 /* Bit 11 */
-
- /*
- * Do it really dirty by looking at raw addresses,
- * raw offsets, no types. If we used pgtable/pgalloc
- * macros/definitions we could hide potential bugs.
- *
- * Note that pointers are 32-bit for CDC.
- */
- long pgdt, pmdt, ptet;
-
- pgdt = (long) &swapper_pg_dir;
- printk("-->PGD (0x%08lx):\n", pgdt);
- print_DIR(pgdt);
- printk("\n");
-
- /* VMALLOC pool is mapped at 0xc0000000, second (pointer) entry in PGD */
- pgdt += 4;
- pmdt = (long) (* (long *) pgdt);
- if (!(pmdt & PRESENT)) {
- printk("No PMD\n");
- return;
- } else pmdt &= 0xfffff000;
-
- printk("-->PMD (0x%08lx):\n", pmdt);
- print_DIR(pmdt);
- printk("\n");
-
- /* Get the pmdt displacement for 0xc0000000 */
- pmdt += 2048;
-
- /* just look at first two address ranges ... */
- /* ... 0xc0000000 ... */
- ptet = (long) (* (long *) pmdt);
- if (!(ptet & PRESENT)) {
- printk("No PTE0\n");
- return;
- } else ptet &= 0xfffff000;
-
- printk("-->PTE0 (0x%08lx):\n", ptet);
- print_PTE(ptet);
- printk("\n");
-
- /* ... 0xc0001000 ... */
- ptet += 4;
- if (!(ptet & PRESENT)) {
- printk("No PTE1\n");
- return;
- } else ptet &= 0xfffff000;
- printk("-->PTE1 (0x%08lx):\n", ptet);
- print_PTE(ptet);
- printk("\n");
-}
-#else
-#define print_vmalloc_first_tables()
-#endif /* VM_SHOW_TABLES */
-
-static void test_VM(void)
-{
- void *a, *b, *c;
-
-#ifdef VM_SHOW_TABLES
- printk("Initial PGD/PMD/PTE\n");
-#endif
- print_vmalloc_first_tables();
-
- printk("Allocating 2 bytes\n");
- a = vmalloc(2);
- print_vmalloc_first_tables();
-
- printk("Allocating 4100 bytes\n");
- b = vmalloc(4100);
- print_vmalloc_first_tables();
-
- printk("Allocating 20234 bytes\n");
- c = vmalloc(20234);
- print_vmalloc_first_tables();
-
-#ifdef VM_TEST_FAULT
- /* Here you may want to fault ! */
-
-#ifdef VM_TEST_RTLBMISS
- printk("Ready to fault upon read.\n");
- if (* (char *) a) {
- printk("RTLBMISSed on area a !\n");
- }
- printk("RTLBMISSed on area a !\n");
-#endif
-
-#ifdef VM_TEST_WTLBMISS
- printk("Ready to fault upon write.\n");
- *((char *) b) = 'L';
- printk("WTLBMISSed on area b !\n");
-#endif
-
-#endif /* VM_TEST_FAULT */
-
- printk("Deallocating the 4100 byte chunk\n");
- vfree(b);
- print_vmalloc_first_tables();
-
- printk("Deallocating the 2 byte chunk\n");
- vfree(a);
- print_vmalloc_first_tables();
-
- printk("Deallocating the last chunk\n");
- vfree(c);
- print_vmalloc_first_tables();
-}
-
-extern unsigned long volatile jiffies;
-int once = 0;
-unsigned long old_jiffies;
-int pid = -1, pgid = -1;
-
-void idle_trace(void)
-{
-
- _syscall0(int, getpid)
- _syscall1(int, getpgid, int, pid)
-
- if (!once) {
- /* VM allocation/deallocation simple test */
- test_VM();
- pid = getpid();
-
- printk("Got all through to Idle !!\n");
- printk("I'm now going to loop forever ...\n");
- printk("Any ! below is a timer tick.\n");
- printk("Any . below is a getpgid system call from pid = %d.\n", pid);
-
-
- old_jiffies = jiffies;
- once++;
- }
-
- if (old_jiffies != jiffies) {
- old_jiffies = jiffies - old_jiffies;
- switch (old_jiffies) {
- case 1:
- printk("!");
- break;
- case 2:
- printk("!!");
- break;
- case 3:
- printk("!!!");
- break;
- case 4:
- printk("!!!!");
- break;
- default:
- printk("(%d!)", (int) old_jiffies);
- }
- old_jiffies = jiffies;
- }
- pgid = getpgid(pid);
- printk(".");
-}
-#else
-#define idle_trace() do { } while (0)
-#endif /* IDLE_TRACE */
-
static int hlt_counter = 1;
#define HARD_IDLE_TIMEOUT (HZ / 3)
@@ -323,7 +78,6 @@
local_irq_disable();
while (!need_resched()) {
local_irq_enable();
- idle_trace();
hlt();
local_irq_disable();
}
@@ -622,6 +376,10 @@
/*
* Create a kernel thread
*/
+ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
+{
+ do_exit(fn(arg));
+}
/*
* This is the mechanism for creating a new kernel thread.
@@ -633,19 +391,17 @@
*/
int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
{
- /* A bit less processor dependent than older sh ... */
- unsigned int reply;
+ struct pt_regs regs;
-static __inline__ _syscall2(int,clone,unsigned long,flags,unsigned long,newsp)
-static __inline__ _syscall1(int,exit,int,ret)
+ memset(®s, 0, sizeof(regs));
+ regs.regs[2] = (unsigned long)arg;
+ regs.regs[3] = (unsigned long)fn;
- reply = clone(flags | CLONE_VM, 0);
- if (!reply) {
- /* Child */
- reply = exit(fn(arg));
- }
+ regs.pc = (unsigned long)kernel_thread_helper;
+ regs.sr = (1 << 30);
- return reply;
+ return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+ ®s, 0, NULL, NULL);
}
/*
diff --git a/arch/sh64/kernel/sys_sh64.c b/arch/sh64/kernel/sys_sh64.c
index 58ff7d5..ad0fa4e 100644
--- a/arch/sh64/kernel/sys_sh64.c
+++ b/arch/sh64/kernel/sys_sh64.c
@@ -32,6 +32,7 @@
#include <asm/uaccess.h>
#include <asm/ipc.h>
#include <asm/ptrace.h>
+#include <asm/unistd.h>
#define REG_3 3
@@ -279,7 +280,25 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve);
+ register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename;
+ register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv;
+ register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp;
+ __asm__ __volatile__ ("trapa %1 !\t\t\t execve(%2,%3,%4)"
+ : "=r" (__sc0)
+ : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );
+ __asm__ __volatile__ ("!dummy %0 %1 %2 %3"
+ : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory");
+ return __sc0;
+}
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 896863f..a954a0c 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -24,6 +24,7 @@
#include <asm/uaccess.h>
#include <asm/ipc.h>
+#include <asm/unistd.h>
/* #define DEBUG_UNIMP_SYSCALL */
@@ -475,16 +476,38 @@
down_read(&uts_sem);
- nlen = strlen(system_utsname.domainname) + 1;
+ nlen = strlen(utsname()->domainname) + 1;
err = -EINVAL;
if (nlen > len)
goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, nlen))
+ if (!copy_to_user(name, utsname()->domainname, nlen))
err = 0;
out:
up_read(&uts_sem);
return err;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ long __res;
+ register long __g1 __asm__ ("g1") = __NR_execve;
+ register long __o0 __asm__ ("o0") = (long)(filename);
+ register long __o1 __asm__ ("o1") = (long)(argv);
+ register long __o2 __asm__ ("o2") = (long)(envp);
+ asm volatile ("t 0x10\n\t"
+ "bcc 1f\n\t"
+ "mov %%o0, %0\n\t"
+ "sub %%g0, %%o0, %0\n\t"
+ "1:\n\t"
+ : "=r" (__res), "=&r" (__o0)
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1)
+ : "cc");
+ return __res;
+}
diff --git a/arch/sparc/kernel/sys_sunos.c b/arch/sparc/kernel/sys_sunos.c
index aa0fb2e..9d2cd97 100644
--- a/arch/sparc/kernel/sys_sunos.c
+++ b/arch/sparc/kernel/sys_sunos.c
@@ -483,13 +483,18 @@
{
int ret;
down_read(&uts_sem);
- ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1);
+ ret = copy_to_user(&name->sname[0], &utsname()->sysname[0],
+ sizeof(name->sname) - 1);
if (!ret) {
- ret |= __copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1);
+ ret |= __copy_to_user(&name->nname[0], &utsname()->nodename[0],
+ sizeof(name->nname) - 1);
ret |= __put_user('\0', &name->nname[8]);
- ret |= __copy_to_user(&name->rel[0], &system_utsname.release[0], sizeof(name->rel) - 1);
- ret |= __copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1);
- ret |= __copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1);
+ ret |= __copy_to_user(&name->rel[0], &utsname()->release[0],
+ sizeof(name->rel) - 1);
+ ret |= __copy_to_user(&name->ver[0], &utsname()->version[0],
+ sizeof(name->ver) - 1);
+ ret |= __copy_to_user(&name->mach[0], &utsname()->machine[0],
+ sizeof(name->mach) - 1);
}
up_read(&uts_sem);
return ret ? -EFAULT : 0;
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 8d8ca71..b627f8d 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -420,7 +420,7 @@
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on EXPERIMENTAL && MODULES
+ depends on KALLSYMS && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index e55466c..0b9c706 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -4,8 +4,6 @@
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -14,6 +12,7 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/pm.h>
+#include <linux/syscalls.h>
#include <asm/system.h>
#include <asm/auxio.h>
@@ -98,7 +97,7 @@
/* Ok, down we go... */
button_pressed = 0;
- if (execve("/sbin/shutdown", argv, envp) < 0) {
+ if (kernel_execve("/sbin/shutdown", argv, envp) < 0) {
printk("powerd: shutdown execution failed\n");
add_wait_queue(&powerd_wait, &wait);
goto again;
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index c608c94..a53d4ab 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -31,6 +31,7 @@
#include <asm/utrap.h>
#include <asm/perfctr.h>
#include <asm/a.out.h>
+#include <asm/unistd.h>
/* #define DEBUG_UNIMP_SYSCALL */
@@ -712,13 +713,13 @@
down_read(&uts_sem);
- nlen = strlen(system_utsname.domainname) + 1;
+ nlen = strlen(utsname()->domainname) + 1;
err = -EINVAL;
if (nlen > len)
goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, nlen))
+ if (!copy_to_user(name, utsname()->domainname, nlen))
err = 0;
out:
@@ -963,3 +964,23 @@
};
return err;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ long __res;
+ register long __g1 __asm__ ("g1") = __NR_execve;
+ register long __o0 __asm__ ("o0") = (long)(filename);
+ register long __o1 __asm__ ("o1") = (long)(argv);
+ register long __o2 __asm__ ("o2") = (long)(envp);
+ asm volatile ("t 0x6d\n\t"
+ "sub %%g0, %%o0, %0\n\t"
+ "movcc %%xcc, %%o0, %0\n\t"
+ : "=r" (__res), "=&r" (__o0)
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1)
+ : "cc");
+ return __res;
+}
diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
index 87ebdf8..953296b 100644
--- a/arch/sparc64/kernel/sys_sunos32.c
+++ b/arch/sparc64/kernel/sys_sunos32.c
@@ -439,16 +439,16 @@
int ret;
down_read(&uts_sem);
- ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0],
+ ret = copy_to_user(&name->sname[0], &utsname()->sysname[0],
sizeof(name->sname) - 1);
- ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0],
+ ret |= copy_to_user(&name->nname[0], &utsname()->nodename[0],
sizeof(name->nname) - 1);
ret |= put_user('\0', &name->nname[8]);
- ret |= copy_to_user(&name->rel[0], &system_utsname.release[0],
+ ret |= copy_to_user(&name->rel[0], &utsname()->release[0],
sizeof(name->rel) - 1);
- ret |= copy_to_user(&name->ver[0], &system_utsname.version[0],
+ ret |= copy_to_user(&name->ver[0], &utsname()->version[0],
sizeof(name->ver) - 1);
- ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0],
+ ret |= copy_to_user(&name->mach[0], &utsname()->machine[0],
sizeof(name->mach) - 1);
up_read(&uts_sem);
return (ret ? -EFAULT : 0);
diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c
index 9c58132..9ed9979 100644
--- a/arch/sparc64/solaris/misc.c
+++ b/arch/sparc64/solaris/misc.c
@@ -249,7 +249,7 @@
/* Let's cheat */
err = set_utsfield(v->sysname, "SunOS", 1, 0);
down_read(&uts_sem);
- err |= set_utsfield(v->nodename, system_utsname.nodename,
+ err |= set_utsfield(v->nodename, utsname()->nodename,
1, 1);
up_read(&uts_sem);
err |= set_utsfield(v->release, "2.6", 0, 0);
@@ -273,7 +273,7 @@
/* Why should we not lie a bit? */
down_read(&uts_sem);
err = set_utsfield(v->sysname, "SunOS", 0, 0);
- err |= set_utsfield(v->nodename, system_utsname.nodename, 1, 1);
+ err |= set_utsfield(v->nodename, utsname()->nodename, 1, 1);
err |= set_utsfield(v->release, "5.6", 0, 0);
err |= set_utsfield(v->version, "Generic", 0, 0);
err |= set_utsfield(v->machine, machine(), 0, 0);
@@ -305,7 +305,7 @@
case SI_HOSTNAME:
r = buffer + 256;
down_read(&uts_sem);
- for (p = system_utsname.nodename, q = buffer;
+ for (p = utsname()->nodename, q = buffer;
q < r && *p && *p != '.'; *q++ = *p++);
up_read(&uts_sem);
*q = 0;
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 563ce76..24747a4 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -642,9 +642,9 @@
}
struct tty_driver *line_register_devfs(struct lines *set,
- struct line_driver *line_driver,
- struct tty_operations *ops, struct line *lines,
- int nlines)
+ struct line_driver *line_driver,
+ const struct tty_operations *ops,
+ struct line *lines, int nlines)
{
int i;
struct tty_driver *driver = alloc_tty_driver(nlines);
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 773a134..a67dcbd 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -106,9 +106,9 @@
{
char version[256];
- sprintf(version, "%s %s %s %s %s", system_utsname.sysname,
- system_utsname.nodename, system_utsname.release,
- system_utsname.version, system_utsname.machine);
+ sprintf(version, "%s %s %s %s %s", utsname()->sysname,
+ utsname()->nodename, utsname()->release,
+ utsname()->version, utsname()->machine);
mconsole_reply(req, version, 0, 0);
}
diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index 642c9a0..7be2481 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -91,10 +91,9 @@
void *data);
extern void line_close_chan(struct line *line);
extern struct tty_driver * line_register_devfs(struct lines *set,
- struct line_driver *line_driver,
- struct tty_operations *driver,
- struct line *lines,
- int nlines);
+ struct line_driver *line_driver,
+ const struct tty_operations *driver,
+ struct line *lines, int nlines);
extern void lines_init(struct line *lines, int nlines, struct chan_opts *opts);
extern void close_lines(struct line *lines, int nlines);
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 48cf88d..f5ed862 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -110,7 +110,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err = copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}
@@ -126,21 +126,21 @@
down_read(&uts_sem);
- error = __copy_to_user(&name->sysname,&system_utsname.sysname,
+ error = __copy_to_user(&name->sysname, &utsname()->sysname,
__OLD_UTS_LEN);
- error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->nodename,&system_utsname.nodename,
+ error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->nodename, &utsname()->nodename,
__OLD_UTS_LEN);
- error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->release,&system_utsname.release,
+ error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->release, &utsname()->release,
__OLD_UTS_LEN);
- error |= __put_user(0,name->release+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->version,&system_utsname.version,
+ error |= __put_user(0, name->release + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->version, &utsname()->version,
__OLD_UTS_LEN);
- error |= __put_user(0,name->version+__OLD_UTS_LEN);
- error |= __copy_to_user(&name->machine,&system_utsname.machine,
+ error |= __put_user(0, name->version + __OLD_UTS_LEN);
+ error |= __copy_to_user(&name->machine, &utsname()->machine,
__OLD_UTS_LEN);
- error |= __put_user(0,name->machine+__OLD_UTS_LEN);
+ error |= __put_user(0, name->machine + __OLD_UTS_LEN);
up_read(&uts_sem);
@@ -164,3 +164,16 @@
spin_unlock(&syscall_lock);
return(ret);
}
+
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ mm_segment_t fs;
+ int ret;
+
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+ ret = um_execve(filename, argv, envp);
+ set_fs(fs);
+
+ return ret;
+}
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 5500571..97d88e7 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -167,7 +167,7 @@
static int __init uml_version_setup(char *line, int *add)
{
- printf("%s\n", system_utsname.release);
+ printf("%s\n", init_utsname()->release);
exit(0);
return 0;
@@ -278,7 +278,7 @@
{
const char **p;
- printf(usage_string, system_utsname.release);
+ printf(usage_string, init_utsname()->release);
p = &__uml_help_start;
while (p < &__uml_help_end) {
printf("%s", *p);
@@ -403,7 +403,7 @@
/* Reserve up to 4M after the current brk */
uml_reserved = ROUND_4M(brk_start) + (1 << 22);
- setup_machinename(system_utsname.machine);
+ setup_machinename(init_utsname()->machine);
#ifdef CONFIG_CMDLINE_ON_HOST
argv1_begin = argv[1];
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index ff20362..51f0893 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -11,6 +11,7 @@
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/mman.h>
+#include <sys/syscall.h>
#include "ptrace_user.h"
#include "os.h"
#include "user.h"
@@ -140,11 +141,9 @@
* syscalls, and also breaks with clone(), which does not unshare the TLS.
*/
-inline _syscall0(pid_t, getpid)
-
int os_getpid(void)
{
- return(getpid());
+ return(syscall(__NR_getpid));
}
int os_getpgrp(void)
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-i386/tls.c
index 120abbe..6e945ab 100644
--- a/arch/um/os-Linux/sys-i386/tls.c
+++ b/arch/um/os-Linux/sys-i386/tls.c
@@ -1,10 +1,9 @@
#include <errno.h>
#include <linux/unistd.h>
+#include <sys/syscall.h>
#include "sysdep/tls.h"
#include "user_util.h"
-static _syscall1(int, get_thread_area, user_desc_t *, u_info);
-
/* Checks whether host supports TLS, and sets *tls_min according to the value
* valid on the host.
* i386 host have it == 6; x86_64 host have it == 12, for i386 emulation. */
@@ -17,7 +16,7 @@
user_desc_t info;
info.entry_number = val[i];
- if (get_thread_area(&info) == 0) {
+ if (syscall(__NR_get_thread_area, &info) == 0) {
*tls_min = val[i];
*supports_tls = 1;
return;
diff --git a/arch/um/os-Linux/tls.c b/arch/um/os-Linux/tls.c
index 9cb09a4..a2de258 100644
--- a/arch/um/os-Linux/tls.c
+++ b/arch/um/os-Linux/tls.c
@@ -1,5 +1,6 @@
#include <errno.h>
#include <sys/ptrace.h>
+#include <sys/syscall.h>
#include <asm/ldt.h>
#include "sysdep/tls.h"
#include "uml-config.h"
@@ -48,14 +49,11 @@
#ifdef UML_CONFIG_MODE_TT
#include "linux/unistd.h"
-static _syscall1(int, get_thread_area, user_desc_t *, u_info);
-static _syscall1(int, set_thread_area, user_desc_t *, u_info);
-
int do_set_thread_area_tt(user_desc_t *info)
{
int ret;
- ret = set_thread_area(info);
+ ret = syscall(__NR_set_thread_area,info);
if (ret < 0) {
ret = -errno;
}
@@ -66,7 +64,7 @@
{
int ret;
- ret = get_thread_area(info);
+ ret = syscall(__NR_get_thread_area,info);
if (ret < 0) {
ret = -errno;
}
diff --git a/arch/um/sys-i386/unmap.c b/arch/um/sys-i386/unmap.c
index 1b0ad0e..8e55cd5 100644
--- a/arch/um/sys-i386/unmap.c
+++ b/arch/um/sys-i386/unmap.c
@@ -5,20 +5,17 @@
#include <linux/mman.h>
#include <asm/unistd.h>
+#include <sys/syscall.h>
-static int errno;
-
-static inline _syscall2(int,munmap,void *,start,size_t,len)
-static inline _syscall6(void *,mmap2,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
int switcheroo(int fd, int prot, void *from, void *to, int size)
{
- if(munmap(to, size) < 0){
+ if (syscall(__NR_munmap, to, size) < 0){
return(-1);
}
- if(mmap2(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1 ){
+ if (syscall(__NR_mmap2, to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1 ){
return(-1);
}
- if(munmap(from, size) < 0){
+ if (syscall(__NR_munmap, from, size) < 0){
return(-1);
}
return(0);
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index 6fce9f4..73ce446 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -21,7 +21,7 @@
{
int err;
down_read(&uts_sem);
- err = copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
diff --git a/arch/um/sys-x86_64/sysrq.c b/arch/um/sys-x86_64/sysrq.c
index d0a25af..ce3e07f 100644
--- a/arch/um/sys-x86_64/sysrq.c
+++ b/arch/um/sys-x86_64/sysrq.c
@@ -16,7 +16,7 @@
printk("\n");
print_modules();
printk("Pid: %d, comm: %.20s %s %s\n",
- current->pid, current->comm, print_tainted(), system_utsname.release);
+ current->pid, current->comm, print_tainted(), init_utsname()->release);
printk("RIP: %04lx:[<%016lx>] ", PT_REGS_CS(regs) & 0xffff,
PT_REGS_RIP(regs));
printk("\nRSP: %016lx EFLAGS: %08lx\n", PT_REGS_RSP(regs),
diff --git a/arch/um/sys-x86_64/unmap.c b/arch/um/sys-x86_64/unmap.c
index f4a4bff..57c9286 100644
--- a/arch/um/sys-x86_64/unmap.c
+++ b/arch/um/sys-x86_64/unmap.c
@@ -5,20 +5,17 @@
#include <linux/mman.h>
#include <asm/unistd.h>
+#include <sys/syscall.h>
-static int errno;
-
-static inline _syscall2(int,munmap,void *,start,size_t,len)
-static inline _syscall6(void *,mmap,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
int switcheroo(int fd, int prot, void *from, void *to, int size)
{
- if(munmap(to, size) < 0){
+ if (syscall(__NR_munmap, to, size) < 0){
return(-1);
}
- if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1){
+ if (syscall(__NR_mmap, to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) == (void*) -1){
return(-1);
}
- if(munmap(from, size) < 0){
+ if (syscall(__NR_munmap, from, size) < 0){
return(-1);
}
return(0);
diff --git a/arch/v850/kernel/memcons.c b/arch/v850/kernel/memcons.c
index 815f8a4..92f514f 100644
--- a/arch/v850/kernel/memcons.c
+++ b/arch/v850/kernel/memcons.c
@@ -104,7 +104,7 @@
return 0;
}
-static struct tty_operations ops = {
+static const struct tty_operations ops = {
.open = memcons_tty_open,
.write = memcons_tty_write,
.write_room = memcons_tty_write_room,
diff --git a/arch/v850/kernel/simcons.c b/arch/v850/kernel/simcons.c
index 3975aa0..9973596 100644
--- a/arch/v850/kernel/simcons.c
+++ b/arch/v850/kernel/simcons.c
@@ -77,7 +77,7 @@
return 0;
}
-static struct tty_operations ops = {
+static const struct tty_operations ops = {
.open = simcons_tty_open,
.write = simcons_tty_write,
.write_room = simcons_tty_write_room,
diff --git a/arch/v850/kernel/syscalls.c b/arch/v850/kernel/syscalls.c
index 2ec0700..d2b1fb1 100644
--- a/arch/v850/kernel/syscalls.c
+++ b/arch/v850/kernel/syscalls.c
@@ -33,6 +33,7 @@
#include <asm/uaccess.h>
#include <asm/ipc.h>
#include <asm/semaphore.h>
+#include <asm/unistd.h>
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
@@ -194,3 +195,22 @@
out:
return err;
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ register char *__a __asm__ ("r6") = filename;
+ register void *__b __asm__ ("r7") = argv;
+ register void *__c __asm__ ("r8") = envp;
+ register unsigned long __syscall __asm__ ("r12") = __NR_execve;
+ register unsigned long __ret __asm__ ("r10");
+ __asm__ __volatile__ ("trap 0"
+ : "=r" (__ret), "=r" (__syscall)
+ : "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
+ : "r1", "r5", "r11", "r13", "r14",
+ "r15", "r16", "r17", "r18", "r19");
+ return __ret;
+}
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index b87a19f..0a5d8e6 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -690,7 +690,7 @@
config KPROBES
bool "Kprobes (EXPERIMENTAL)"
- depends on EXPERIMENTAL && MODULES
+ depends on KALLSYMS && EXPERIMENTAL && MODULES
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index f280d36..26a0171 100644
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -784,36 +784,36 @@
if (!name)
return -EFAULT;
- if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
+ if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname)))
return -EFAULT;
down_read(&uts_sem);
-
- err = __copy_to_user(&name->sysname,&system_utsname.sysname,
+
+ err = __copy_to_user(&name->sysname,&utsname()->sysname,
__OLD_UTS_LEN);
err |= __put_user(0,name->sysname+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->nodename,&system_utsname.nodename,
+ err |= __copy_to_user(&name->nodename,&utsname()->nodename,
__OLD_UTS_LEN);
err |= __put_user(0,name->nodename+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->release,&system_utsname.release,
+ err |= __copy_to_user(&name->release,&utsname()->release,
__OLD_UTS_LEN);
err |= __put_user(0,name->release+__OLD_UTS_LEN);
- err |= __copy_to_user(&name->version,&system_utsname.version,
+ err |= __copy_to_user(&name->version,&utsname()->version,
__OLD_UTS_LEN);
err |= __put_user(0,name->version+__OLD_UTS_LEN);
- {
- char *arch = "x86_64";
- if (personality(current->personality) == PER_LINUX32)
- arch = "i686";
+ {
+ char *arch = "x86_64";
+ if (personality(current->personality) == PER_LINUX32)
+ arch = "i686";
- err |= __copy_to_user(&name->machine,arch,strlen(arch)+1);
- }
-
- up_read(&uts_sem);
-
- err = err ? -EFAULT : 0;
-
- return err;
+ err |= __copy_to_user(&name->machine, arch, strlen(arch)+1);
+ }
+
+ up_read(&uts_sem);
+
+ err = err ? -EFAULT : 0;
+
+ return err;
}
long sys32_uname(struct old_utsname __user * name)
@@ -822,7 +822,7 @@
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err=copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 2802524..b8285cf 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -1023,7 +1023,7 @@
* do_sys_execve asm fallback arguments:
* rdi: name, rsi: argv, rdx: envp, fake frame on the stack
*/
-ENTRY(execve)
+ENTRY(kernel_execve)
CFI_STARTPROC
FAKE_STACK_FRAME $0
SAVE_ALL
@@ -1036,7 +1036,7 @@
UNFAKE_STACK_FRAME
ret
CFI_ENDPROC
-ENDPROC(execve)
+ENDPROC(kernel_execve)
KPROBE_ENTRY(page_fault)
errorentry do_page_fault
diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c
index ffc73ac..ac24156 100644
--- a/arch/x86_64/kernel/kprobes.c
+++ b/arch/x86_64/kernel/kprobes.c
@@ -270,20 +270,19 @@
struct pt_regs *regs)
{
unsigned long *sara = (unsigned long *)regs->rsp;
- struct kretprobe_instance *ri;
+ struct kretprobe_instance *ri;
- if ((ri = get_free_rp_inst(rp)) != NULL) {
- ri->rp = rp;
- ri->task = current;
+ if ((ri = get_free_rp_inst(rp)) != NULL) {
+ ri->rp = rp;
+ ri->task = current;
ri->ret_addr = (kprobe_opcode_t *) *sara;
/* Replace the return addr with trampoline addr */
*sara = (unsigned long) &kretprobe_trampoline;
-
- add_rp_inst(ri);
- } else {
- rp->nmissed++;
- }
+ add_rp_inst(ri);
+ } else {
+ rp->nmissed++;
+ }
}
int __kprobes kprobe_handler(struct pt_regs *regs)
@@ -405,14 +404,15 @@
*/
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
- struct kretprobe_instance *ri = NULL;
- struct hlist_head *head;
- struct hlist_node *node, *tmp;
+ struct kretprobe_instance *ri = NULL;
+ struct hlist_head *head, empty_rp;
+ struct hlist_node *node, *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
- head = kretprobe_inst_table_head(current);
+ head = kretprobe_inst_table_head(current);
/*
* It is possible to have multiple instances associated with a given
@@ -423,20 +423,20 @@
* We can handle this because:
* - instances are always inserted at the head of the list
* - when multiple return probes are registered for the same
- * function, the first instance's ret_addr will point to the
+ * function, the first instance's ret_addr will point to the
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
- if (ri->task != current)
+ if (ri->task != current)
/* another task is sharing our hash bucket */
- continue;
+ continue;
if (ri->rp && ri->rp->handler)
ri->rp->handler(ri, regs);
orig_ret_address = (unsigned long)ri->ret_addr;
- recycle_rp_inst(ri);
+ recycle_rp_inst(ri, &empty_rp);
if (orig_ret_address != trampoline_address)
/*
@@ -454,12 +454,16 @@
spin_unlock_irqrestore(&kretprobe_lock, flags);
preempt_enable_no_resched();
- /*
- * By returning a non-zero value, we are telling
- * kprobe_handler() that we don't want the post_handler
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
+ /*
+ * By returning a non-zero value, we are telling
+ * kprobe_handler() that we don't want the post_handler
* to run (and have re-enabled preemption)
- */
- return 1;
+ */
+ return 1;
}
/*
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index 458006a..de10cb8 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -294,9 +294,9 @@
print_modules();
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
current->pid, current->comm, print_tainted(),
- system_utsname.release,
- (int)strcspn(system_utsname.version, " "),
- system_utsname.version);
+ init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
printk_address(regs->rip);
printk("RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, regs->rsp,
diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
index 6449ea8..76bf7c2 100644
--- a/arch/x86_64/kernel/sys_x86_64.c
+++ b/arch/x86_64/kernel/sys_x86_64.c
@@ -148,7 +148,7 @@
{
int err;
down_read(&uts_sem);
- err = copy_to_user(name, &system_utsname, sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
index 4688ba2..d9285d4 100644
--- a/arch/xtensa/kernel/syscalls.c
+++ b/arch/xtensa/kernel/syscalls.c
@@ -128,7 +128,7 @@
int sys_uname(struct old_utsname * name)
{
- if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
+ if (name && !copy_to_user(name, utsname(), sizeof (*name)))
return 0;
return -EFAULT;
}
@@ -266,3 +266,23 @@
regs->areg[2] = res;
do_syscall_trace();
}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+ long __res;
+ asm volatile (
+ " mov a5, %2 \n"
+ " mov a4, %4 \n"
+ " mov a3, %3 \n"
+ " movi a2, %1 \n"
+ " syscall \n"
+ " mov %0, a2 \n"
+ : "=a" (__res)
+ : "i" (__NR_execve), "a" (filename), "a" (argv), "a" (envp)
+ : "a2", "a3", "a4", "a5");
+ return __res;
+}
diff --git a/arch/xtensa/platform-iss/console.c b/arch/xtensa/platform-iss/console.c
index 22d3c57..5c947ca 100644
--- a/arch/xtensa/platform-iss/console.c
+++ b/arch/xtensa/platform-iss/console.c
@@ -191,7 +191,7 @@
}
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index 9d6713a..d0e92ed 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -1958,7 +1958,7 @@
}
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index c1c6728..f85b4eb 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -5205,7 +5205,7 @@
extra ports are ignored.
*/
-static struct tty_operations cy_ops = {
+static const struct tty_operations cy_ops = {
.open = cy_open,
.close = cy_close,
.write = cy_write,
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 86d290e..3baa2ab 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -1125,7 +1125,7 @@
module_exit(epca_module_exit);
-static struct tty_operations pc_ops = {
+static const struct tty_operations pc_ops = {
.open = pc_open,
.close = pc_close,
.write = pc_write,
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index afcd83d..05788c7 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -2376,7 +2376,7 @@
return (port_detected);
}
-static struct tty_operations esp_ops = {
+static const struct tty_operations esp_ops = {
.open = esp_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index a76d2c4..4053d1c 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -696,7 +696,7 @@
return 0;
}
-static struct tty_operations hvc_ops = {
+static const struct tty_operations hvc_ops = {
.open = hvc_open,
.close = hvc_close,
.write = hvc_write,
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 4589ff3..0b89bcd 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -1306,7 +1306,7 @@
return hvcsd->chars_in_buffer;
}
-static struct tty_operations hvcs_ops = {
+static const struct tty_operations hvcs_ops = {
.open = hvcs_open,
.close = hvcs_close,
.hangup = hvcs_hangup,
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index a89a95f..c07dc58 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1130,7 +1130,7 @@
}
-static struct tty_operations hvsi_ops = {
+static const struct tty_operations hvsi_ops = {
.open = hvsi_open,
.close = hvsi_close,
.write = hvsi_write,
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 331f447..4828bc9 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -458,7 +458,7 @@
}
#endif /* MODULE */
-static struct tty_operations ip2_ops = {
+static const struct tty_operations ip2_ops = {
.open = ip2_open,
.close = ip2_close,
.write = ip2_write,
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 2e1da63..ea2bbf8 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -1550,7 +1550,7 @@
board->base = 0;
}
-static struct tty_operations isicom_ops = {
+static const struct tty_operations isicom_ops = {
.open = isicom_open,
.close = isicom_close,
.write = isicom_write,
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 6b4d82a..d6e0315 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -4636,7 +4636,7 @@
return rc;
}
-static struct tty_operations stli_ops = {
+static const struct tty_operations stli_ops = {
.open = stli_open,
.close = stli_close,
.write = stli_write,
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 3e90aac..e201166 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -108,7 +108,11 @@
struct kbd_struct kbd_table[MAX_NR_CONSOLES];
static struct kbd_struct *kbd = kbd_table;
-int spawnpid, spawnsig;
+struct vt_spawn_console vt_spawn_con = {
+ .lock = SPIN_LOCK_UNLOCKED,
+ .pid = NULL,
+ .sig = 0,
+};
/*
* Variables exported for vt.c
@@ -578,9 +582,13 @@
static void fn_spawn_con(struct vc_data *vc, struct pt_regs *regs)
{
- if (spawnpid)
- if (kill_proc(spawnpid, spawnsig, 1))
- spawnpid = 0;
+ spin_lock(&vt_spawn_con.lock);
+ if (vt_spawn_con.pid)
+ if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) {
+ put_pid(vt_spawn_con.pid);
+ vt_spawn_con.pid = NULL;
+ }
+ spin_unlock(&vt_spawn_con.lock);
}
static void fn_SAK(struct vc_data *vc, struct pt_regs *regs)
@@ -1285,7 +1293,7 @@
*/
static struct input_handle *kbd_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct input_handle *handle;
int i;
@@ -1334,7 +1342,7 @@
tasklet_enable(&keyboard_tasklet);
}
-static struct input_device_id kbd_ids[] = {
+static const struct input_device_id kbd_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT(EV_KEY) },
@@ -1362,6 +1370,7 @@
int __init kbd_init(void)
{
int i;
+ int error;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
kbd_table[i].ledflagstate = KBD_DEFLEDS;
@@ -1373,7 +1382,9 @@
kbd_table[i].kbdmode = VC_XLATE;
}
- input_register_handler(&kbd_handler);
+ error = input_register_handler(&kbd_handler);
+ if (error)
+ return error;
tasklet_enable(&keyboard_tasklet);
tasklet_schedule(&keyboard_tasklet);
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index c1a6d3c..b401383 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -281,7 +281,7 @@
static int moxa_set_serial_info(struct moxa_str *, struct serial_struct __user *);
static void MoxaSetFifo(int port, int enable);
-static struct tty_operations moxa_ops = {
+static const struct tty_operations moxa_ops = {
.open = moxa_open,
.close = moxa_close,
.write = moxa_write,
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 27a6537..8253fca 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -453,7 +453,7 @@
/* above is modified by Victor Yu. 08-15-2002 */
-static struct tty_operations mxser_ops = {
+static const struct tty_operations mxser_ops = {
.open = mxser_open,
.close = mxser_close,
.write = mxser_write,
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 7c57ebf..ea1aa77 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -127,9 +127,8 @@
static void button_sequence_finished (unsigned long parameters)
{
#ifdef CONFIG_NWBUTTON_REBOOT /* Reboot using button is enabled */
- if (button_press_count == reboot_count) {
- kill_proc (1, SIGINT, 1); /* Ask init to reboot us */
- }
+ if (button_press_count == reboot_count)
+ kill_cad_pid(SIGINT, 1); /* Ask init to reboot us */
#endif /* CONFIG_NWBUTTON_REBOOT */
button_consume_callbacks (button_press_count);
bcount = sprintf (button_output_buffer, "%d\n", button_press_count);
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 00f574c..dd845cb 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -3010,7 +3010,7 @@
.resume = mgslpc_resume,
};
-static struct tty_operations mgslpc_ops = {
+static const struct tty_operations mgslpc_ops = {
.open = mgslpc_open,
.close = mgslpc_close,
.write = mgslpc_write,
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 34dd4c3..80d3eed 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -224,7 +224,7 @@
tty->termios->c_cflag |= (CS8 | CREAD);
}
-static struct tty_operations pty_ops = {
+static const struct tty_operations pty_ops = {
.open = pty_open,
.close = pty_close,
.write = pty_write,
diff --git a/drivers/char/random.c b/drivers/char/random.c
index b430a12..07f47a0 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -889,8 +889,8 @@
do_gettimeofday(&tv);
add_entropy_words(r, (__u32 *)&tv, sizeof(tv)/4);
- add_entropy_words(r, (__u32 *)&system_utsname,
- sizeof(system_utsname)/4);
+ add_entropy_words(r, (__u32 *)utsname(),
+ sizeof(*(utsname()))/4);
}
static int __init rand_initialize(void)
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index 3fa80aa..202a3b0 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -727,7 +727,7 @@
return &vpdp;
}
-static struct tty_operations rio_ops = {
+static const struct tty_operations rio_ops = {
.open = riotopen,
.close = gs_close,
.write = gs_write,
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 06b9f78..214d850 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -1583,7 +1583,7 @@
}
}
-static struct tty_operations riscom_ops = {
+static const struct tty_operations riscom_ops = {
.open = rc_open,
.close = rc_close,
.write = rc_write,
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 0ac1318..bac8005 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -2334,7 +2334,7 @@
return (1);
}
-static struct tty_operations rocket_ops = {
+static const struct tty_operations rocket_ops = {
.open = rp_open,
.close = rp_close,
.write = rp_write,
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
index 510bd3e..65c751d 100644
--- a/drivers/char/ser_a2232.c
+++ b/drivers/char/ser_a2232.c
@@ -661,7 +661,7 @@
}
}
-static struct tty_operations a2232_ops = {
+static const struct tty_operations a2232_ops = {
.open = a2232_open,
.close = gs_close,
.write = gs_write,
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index 21a710c..b4ea126 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -2158,7 +2158,7 @@
rcor >> 5, rbpr);
} /* serial_console_init */
-static struct tty_operations cy_ops = {
+static const struct tty_operations cy_ops = {
.open = cy_open,
.close = cy_close,
.write = cy_write,
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index d12d4f6..864854c 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -220,7 +220,7 @@
" Sending SIGPWR to init...\n");
/* give a SIGPWR signal to init proc */
- kill_proc(1, SIGPWR, 0);
+ kill_cad_pid(SIGPWR, 0);
} else {
/* print to system log */
printk("%s|$(0x%x)%s\n", severity, esp_code, desc);
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index f52c7c3..902c48d 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -2363,7 +2363,7 @@
func_exit();
}
-static struct tty_operations sx_ops = {
+static const struct tty_operations sx_ops = {
.open = sx_open,
.close = sx_close,
.write = sx_write,
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 3beb220..bd71153 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -2993,7 +2993,7 @@
return(rc);
}
-static struct tty_operations stl_ops = {
+static const struct tty_operations stl_ops = {
.open = stl_open,
.close = stl_close,
.write = stl_write,
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index e1cd2bc..57e31e5 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -2226,7 +2226,7 @@
return 1;
}
-static struct tty_operations sx_ops = {
+static const struct tty_operations sx_ops = {
.break_ctl = sx_break,
.open = sx_open,
.close = gs_close,
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index 78b1b1a..244dc30 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -4360,7 +4360,7 @@
} /* end of mgsl_allocate_device()*/
-static struct tty_operations mgsl_ops = {
+static const struct tty_operations mgsl_ops = {
.open = mgsl_open,
.close = mgsl_close,
.write = mgsl_write,
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 78bc851..bdc7cb2 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -3441,7 +3441,7 @@
{
}
-static struct tty_operations ops = {
+static const struct tty_operations ops = {
.open = open,
.close = close,
.write = write,
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 66f3754..6eb75dc 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -3929,7 +3929,7 @@
}
}
-static struct tty_operations ops = {
+static const struct tty_operations ops = {
.open = open,
.close = close,
.write = write,
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 3337417..e90ea39 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -3680,7 +3680,8 @@
kfree(driver);
}
-void tty_set_operations(struct tty_driver *driver, struct tty_operations *op)
+void tty_set_operations(struct tty_driver *driver,
+ const struct tty_operations *op)
{
driver->open = op->open;
driver->close = op->close;
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index f3efeaf..a362ee9 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -1047,7 +1047,7 @@
0, 0, 0, 0);
}
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
.open = viotty_open,
.close = viotty_close,
.write = viotty_write,
diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c
index bfe5ea9..c2ca31e 100644
--- a/drivers/char/vme_scc.c
+++ b/drivers/char/vme_scc.c
@@ -113,7 +113,7 @@
};
-static struct tty_operations scc_ops = {
+static const struct tty_operations scc_ops = {
.open = scc_open,
.close = gs_close,
.write = gs_write,
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index fb75da9..ec0c070 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -903,6 +903,7 @@
if (vc_cons_allocated(currcons)) {
struct vc_data *vc = vc_cons[currcons].d;
vc->vc_sw->con_deinit(vc);
+ put_pid(vc->vt_pid);
module_put(vc->vc_sw->owner);
if (vc->vc_kmalloced)
kfree(vc->vc_screenbuf);
@@ -2674,7 +2675,7 @@
}
console_initcall(con_init);
-static struct tty_operations con_ops = {
+static const struct tty_operations con_ops = {
.open = con_open,
.close = con_close,
.write = con_write,
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index a53e382..ac5d60e 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -645,13 +645,16 @@
*/
case KDSIGACCEPT:
{
- extern int spawnpid, spawnsig;
if (!perm || !capable(CAP_KILL))
return -EPERM;
if (!valid_signal(arg) || arg < 1 || arg == SIGKILL)
return -EINVAL;
- spawnpid = current->pid;
- spawnsig = arg;
+
+ spin_lock_irq(&vt_spawn_con.lock);
+ put_pid(vt_spawn_con.pid);
+ vt_spawn_con.pid = get_pid(task_pid(current));
+ vt_spawn_con.sig = arg;
+ spin_unlock_irq(&vt_spawn_con.lock);
return 0;
}
@@ -669,7 +672,7 @@
vc->vt_mode = tmp;
/* the frsig is ignored, so we set it to 0 */
vc->vt_mode.frsig = 0;
- vc->vt_pid = current->pid;
+ put_pid(xchg(&vc->vt_pid, get_pid(task_pid(current))));
/* no switch is required -- saw@shade.msu.ru */
vc->vt_newvt = -1;
release_console_sem();
@@ -1060,7 +1063,7 @@
vc->vt_mode.relsig = 0;
vc->vt_mode.acqsig = 0;
vc->vt_mode.frsig = 0;
- vc->vt_pid = -1;
+ put_pid(xchg(&vc->vt_pid, NULL));
vc->vt_newvt = -1;
if (!in_interrupt()) /* Via keyboard.c:SAK() - akpm */
reset_palette(vc);
@@ -1111,7 +1114,7 @@
* tell us if the process has gone or something else
* is awry
*/
- if (kill_proc(vc->vt_pid, vc->vt_mode.acqsig, 1) != 0) {
+ if (kill_pid(vc->vt_pid, vc->vt_mode.acqsig, 1) != 0) {
/*
* The controlling process has died, so we revert back to
* normal operation. In this case, we'll also change back
@@ -1171,7 +1174,7 @@
* tell us if the process has gone or something else
* is awry
*/
- if (kill_proc(vc->vt_pid, vc->vt_mode.relsig, 1) == 0) {
+ if (kill_pid(vc->vt_pid, vc->vt_mode.relsig, 1) == 0) {
/*
* It worked. Mark the vt to switch to and
* return. The process needs to send us a
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 42eaed8..a545610 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -1601,7 +1601,7 @@
dev->mmap = ipath_mmap;
snprintf(dev->node_desc, sizeof(dev->node_desc),
- IPATH_IDSTR " %s", system_utsname.nodename);
+ IPATH_IDSTR " %s", init_utsname()->nodename);
ret = ib_register_device(dev);
if (ret)
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 58223b5d..9623231 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -24,6 +24,20 @@
if INPUT
+config INPUT_FF_MEMLESS
+ tristate "Support for memoryless force-feedback devices"
+ default n
+ ---help---
+ Say Y here if you have memoryless force-feedback input device
+ such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual
+ Power 2, or similar. You will also need to enable hardware-specific
+ driver.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ff-memless.
+
comment "Userland interfaces"
config INPUT_MOUSEDEV
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index 1a6ff49..a005b1d 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -4,7 +4,11 @@
# Each configuration option enables a list of files.
-obj-$(CONFIG_INPUT) += input.o
+obj-$(CONFIG_INPUT) += input-core.o
+input-core-objs := input.o ff-core.o
+
+obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o
+
obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o
obj-$(CONFIG_INPUT_JOYDEV) += joydev.o
obj-$(CONFIG_INPUT_EVDEV) += evdev.o
diff --git a/drivers/input/evbug.c b/drivers/input/evbug.c
index 07358fb..5a9653c 100644
--- a/drivers/input/evbug.c
+++ b/drivers/input/evbug.c
@@ -42,10 +42,12 @@
static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
- printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value);
+ printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
+ handle->dev->phys, type, code, value);
}
-static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct input_handle *handle;
@@ -72,7 +74,7 @@
kfree(handle);
}
-static struct input_device_id evbug_ids[] = {
+static const struct input_device_id evbug_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
@@ -89,8 +91,7 @@
static int __init evbug_init(void)
{
- input_register_handler(&evbug_handler);
- return 0;
+ return input_register_handler(&evbug_handler);
}
static void __exit evbug_exit(void)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 4bf4818..6439f37 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -391,8 +391,10 @@
struct evdev *evdev = list->evdev;
struct input_dev *dev = evdev->handle.dev;
struct input_absinfo abs;
+ struct ff_effect effect;
int __user *ip = (int __user *)p;
int i, t, u, v;
+ int error;
if (!evdev->exist)
return -ENODEV;
@@ -460,27 +462,22 @@
return 0;
case EVIOCSFF:
- if (dev->upload_effect) {
- struct ff_effect effect;
- int err;
+ if (copy_from_user(&effect, p, sizeof(effect)))
+ return -EFAULT;
- if (copy_from_user(&effect, p, sizeof(effect)))
- return -EFAULT;
- err = dev->upload_effect(dev, &effect);
- if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
- return -EFAULT;
- return err;
- } else
- return -ENOSYS;
+ error = input_ff_upload(dev, &effect, file);
+
+ if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
+ return -EFAULT;
+
+ return error;
case EVIOCRMFF:
- if (!dev->erase_effect)
- return -ENOSYS;
-
- return dev->erase_effect(dev, (int)(unsigned long) p);
+ return input_ff_erase(dev, (int)(unsigned long) p, file);
case EVIOCGEFFECTS:
- if (put_user(dev->ff_effects_max, ip))
+ i = test_bit(EV_FF, dev->evbit) ? dev->ff->max_effects : 0;
+ if (put_user(i, ip))
return -EFAULT;
return 0;
@@ -604,7 +601,7 @@
}
#endif
-static struct file_operations evdev_fops = {
+static const struct file_operations evdev_fops = {
.owner = THIS_MODULE,
.read = evdev_read,
.write = evdev_write,
@@ -619,7 +616,8 @@
.flush = evdev_flush
};
-static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct evdev *evdev;
struct class_device *cdev;
@@ -669,6 +667,7 @@
evdev->exist = 0;
if (evdev->open) {
+ input_flush_device(handle, NULL);
input_close_device(handle);
wake_up_interruptible(&evdev->wait);
list_for_each_entry(list, &evdev->list, node)
@@ -677,7 +676,7 @@
evdev_free(evdev);
}
-static struct input_device_id evdev_ids[] = {
+static const struct input_device_id evdev_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
@@ -696,8 +695,7 @@
static int __init evdev_init(void)
{
- input_register_handler(&evdev_handler);
- return 0;
+ return input_register_handler(&evdev_handler);
}
static void __exit evdev_exit(void)
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
new file mode 100644
index 0000000..35656ca
--- /dev/null
+++ b/drivers/input/ff-core.c
@@ -0,0 +1,367 @@
+/*
+ * Force feedback support for Linux input subsystem
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("ff-core: " format "\n", ## arg)
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+
+/*
+ * Check that the effect_id is a valid effect and whether the user
+ * is the owner
+ */
+static int check_effect_access(struct ff_device *ff, int effect_id,
+ struct file *file)
+{
+ if (effect_id < 0 || effect_id >= ff->max_effects ||
+ !ff->effect_owners[effect_id])
+ return -EINVAL;
+
+ if (file && ff->effect_owners[effect_id] != file)
+ return -EACCES;
+
+ return 0;
+}
+
+/*
+ * Checks whether 2 effects can be combined together
+ */
+static inline int check_effects_compatible(struct ff_effect *e1,
+ struct ff_effect *e2)
+{
+ return e1->type == e2->type &&
+ (e1->type != FF_PERIODIC ||
+ e1->u.periodic.waveform == e2->u.periodic.waveform);
+}
+
+/*
+ * Convert an effect into compatible one
+ */
+static int compat_effect(struct ff_device *ff, struct ff_effect *effect)
+{
+ int magnitude;
+
+ switch (effect->type) {
+ case FF_RUMBLE:
+ if (!test_bit(FF_PERIODIC, ff->ffbit))
+ return -EINVAL;
+
+ /*
+ * calculate manginude of sine wave as average of rumble's
+ * 2/3 of strong magnitude and 1/3 of weak magnitude
+ */
+ magnitude = effect->u.rumble.strong_magnitude / 3 +
+ effect->u.rumble.weak_magnitude / 6;
+
+ effect->type = FF_PERIODIC;
+ effect->u.periodic.waveform = FF_SINE;
+ effect->u.periodic.period = 50;
+ effect->u.periodic.magnitude = max(magnitude, 0x7fff);
+ effect->u.periodic.offset = 0;
+ effect->u.periodic.phase = 0;
+ effect->u.periodic.envelope.attack_length = 0;
+ effect->u.periodic.envelope.attack_level = 0;
+ effect->u.periodic.envelope.fade_length = 0;
+ effect->u.periodic.envelope.fade_level = 0;
+
+ return 0;
+
+ default:
+ /* Let driver handle conversion */
+ return 0;
+ }
+}
+
+/**
+ * input_ff_upload() - upload effect into force-feedback device
+ * @dev: input device
+ * @effect: effect to be uploaded
+ * @file: owner of the effect
+ */
+int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ struct ff_effect *old;
+ int ret = 0;
+ int id;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
+ !test_bit(effect->type, dev->ffbit)) {
+ debug("invalid or not supported effect type in upload");
+ return -EINVAL;
+ }
+
+ if (effect->type == FF_PERIODIC &&
+ (effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
+ effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
+ !test_bit(effect->u.periodic.waveform, dev->ffbit))) {
+ debug("invalid or not supported wave form in upload");
+ return -EINVAL;
+ }
+
+ if (!test_bit(effect->type, ff->ffbit)) {
+ ret = compat_effect(ff, effect);
+ if (ret)
+ return ret;
+ }
+
+ mutex_lock(&ff->mutex);
+
+ if (effect->id == -1) {
+ for (id = 0; id < ff->max_effects; id++)
+ if (!ff->effect_owners[id])
+ break;
+
+ if (id >= ff->max_effects) {
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ effect->id = id;
+ old = NULL;
+
+ } else {
+ id = effect->id;
+
+ ret = check_effect_access(ff, id, file);
+ if (ret)
+ goto out;
+
+ old = &ff->effects[id];
+
+ if (!check_effects_compatible(effect, old)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ ret = ff->upload(dev, effect, old);
+ if (ret)
+ goto out;
+
+ ff->effects[id] = *effect;
+ ff->effect_owners[id] = file;
+
+ out:
+ mutex_unlock(&ff->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_upload);
+
+/*
+ * Erases the effect if the requester is also the effect owner. The mutex
+ * should already be locked before calling this function.
+ */
+static int erase_effect(struct input_dev *dev, int effect_id,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int error;
+
+ error = check_effect_access(ff, effect_id, file);
+ if (error)
+ return error;
+
+ ff->playback(dev, effect_id, 0);
+
+ if (ff->erase) {
+ error = ff->erase(dev, effect_id);
+ if (error)
+ return error;
+ }
+
+ ff->effect_owners[effect_id] = NULL;
+
+ return 0;
+}
+
+/**
+ * input_ff_erase - erase an effect from device
+ * @dev: input device to erase effect from
+ * @effect_id: id of the ffect to be erased
+ * @file: purported owner of the request
+ *
+ * This function erases a force-feedback effect from specified device.
+ * The effect will only be erased if it was uploaded through the same
+ * file handle that is requesting erase.
+ */
+int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int ret;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ mutex_lock(&ff->mutex);
+ ret = erase_effect(dev, effect_id, file);
+ mutex_unlock(&ff->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_erase);
+
+/*
+ * flush_effects - erase all effects owned by a file handle
+ */
+static int flush_effects(struct input_dev *dev, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int i;
+
+ debug("flushing now");
+
+ mutex_lock(&ff->mutex);
+
+ for (i = 0; i < ff->max_effects; i++)
+ erase_effect(dev, i, file);
+
+ mutex_unlock(&ff->mutex);
+
+ return 0;
+}
+
+/**
+ * input_ff_event() - generic handler for force-feedback events
+ * @dev: input device to send the effect to
+ * @type: event type (anything but EV_FF is ignored)
+ * @code: event code
+ * @value: event value
+ */
+int input_ff_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct ff_device *ff = dev->ff;
+
+ if (type != EV_FF)
+ return 0;
+
+ mutex_lock(&ff->mutex);
+
+ switch (code) {
+ case FF_GAIN:
+ if (!test_bit(FF_GAIN, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_gain(dev, value);
+ break;
+
+ case FF_AUTOCENTER:
+ if (!test_bit(FF_AUTOCENTER, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_autocenter(dev, value);
+ break;
+
+ default:
+ ff->playback(dev, code, value);
+ break;
+ }
+
+ mutex_unlock(&ff->mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_event);
+
+/**
+ * input_ff_create() - create force-feedback device
+ * @dev: input device supporting force-feedback
+ * @max_effects: maximum number of effects supported by the device
+ *
+ * This function allocates all necessary memory for a force feedback
+ * portion of an input device and installs all default handlers.
+ * @dev->ffbit should be already set up before calling this function.
+ * Once ff device is created you need to setup its upload, erase,
+ * playback and other handlers before registering input device
+ */
+int input_ff_create(struct input_dev *dev, int max_effects)
+{
+ struct ff_device *ff;
+ int i;
+
+ if (!max_effects) {
+ printk(KERN_ERR
+ "ff-core: cannot allocate device without any effects\n");
+ return -EINVAL;
+ }
+
+ ff = kzalloc(sizeof(struct ff_device) +
+ max_effects * sizeof(struct file *), GFP_KERNEL);
+ if (!ff)
+ return -ENOMEM;
+
+ ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),
+ GFP_KERNEL);
+ if (!ff->effects) {
+ kfree(ff);
+ return -ENOMEM;
+ }
+
+ ff->max_effects = max_effects;
+ mutex_init(&ff->mutex);
+
+ dev->ff = ff;
+ dev->flush = flush_effects;
+ dev->event = input_ff_event;
+ set_bit(EV_FF, dev->evbit);
+
+ /* Copy "true" bits into ff device bitmap */
+ for (i = 0; i <= FF_MAX; i++)
+ if (test_bit(i, dev->ffbit))
+ set_bit(i, ff->ffbit);
+
+ /* we can emulate RUMBLE with periodic effects */
+ if (test_bit(FF_PERIODIC, ff->ffbit))
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create);
+
+/**
+ * input_ff_free() - frees force feedback portion of input device
+ * @dev: input device supporintg force feedback
+ *
+ * This function is only needed in error path as input core will
+ * automatically free force feedback structures when device is
+ * destroyed.
+ */
+void input_ff_destroy(struct input_dev *dev)
+{
+ clear_bit(EV_FF, dev->evbit);
+ if (dev->ff) {
+ if (dev->ff->destroy)
+ dev->ff->destroy(dev->ff);
+ kfree(dev->ff->private);
+ kfree(dev->ff);
+ dev->ff = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(input_ff_destroy);
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
new file mode 100644
index 0000000..cd8b729
--- /dev/null
+++ b/drivers/input/ff-memless.c
@@ -0,0 +1,515 @@
+/*
+ * Force feedback support for memoryless devices
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("ff-memless: " format "\n", ## arg)
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+
+#include "fixp-arith.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>");
+MODULE_DESCRIPTION("Force feedback support for memoryless devices");
+
+/* Number of effects handled with memoryless devices */
+#define FF_MEMLESS_EFFECTS 16
+
+/* Envelope update interval in ms */
+#define FF_ENVELOPE_INTERVAL 50
+
+#define FF_EFFECT_STARTED 0
+#define FF_EFFECT_PLAYING 1
+#define FF_EFFECT_ABORTING 2
+
+struct ml_effect_state {
+ struct ff_effect *effect;
+ unsigned long flags; /* effect state (STARTED, PLAYING, etc) */
+ int count; /* loop count of the effect */
+ unsigned long play_at; /* start time */
+ unsigned long stop_at; /* stop time */
+ unsigned long adj_at; /* last time the effect was sent */
+};
+
+struct ml_device {
+ void *private;
+ struct ml_effect_state states[FF_MEMLESS_EFFECTS];
+ int gain;
+ struct timer_list timer;
+ spinlock_t timer_lock;
+ struct input_dev *dev;
+
+ int (*play_effect)(struct input_dev *dev, void *data,
+ struct ff_effect *effect);
+};
+
+static const struct ff_envelope *get_envelope(const struct ff_effect *effect)
+{
+ static const struct ff_envelope empty_envelope;
+
+ switch (effect->type) {
+ case FF_PERIODIC:
+ return &effect->u.periodic.envelope;
+ case FF_CONSTANT:
+ return &effect->u.constant.envelope;
+ default:
+ return &empty_envelope;
+ }
+}
+
+/*
+ * Check for the next time envelope requires an update on memoryless devices
+ */
+static unsigned long calculate_next_time(struct ml_effect_state *state)
+{
+ const struct ff_envelope *envelope = get_envelope(state->effect);
+ unsigned long attack_stop, fade_start, next_fade;
+
+ if (envelope->attack_length) {
+ attack_stop = state->play_at +
+ msecs_to_jiffies(envelope->attack_length);
+ if (time_before(state->adj_at, attack_stop))
+ return state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ }
+
+ if (state->effect->replay.length) {
+ if (envelope->fade_length) {
+ /* check when fading should start */
+ fade_start = state->stop_at -
+ msecs_to_jiffies(envelope->fade_length);
+
+ if (time_before(state->adj_at, fade_start))
+ return fade_start;
+
+ /* already fading, advance to next checkpoint */
+ next_fade = state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ if (time_before(next_fade, state->stop_at))
+ return next_fade;
+ }
+
+ return state->stop_at;
+ }
+
+ return state->play_at;
+}
+
+static void ml_schedule_timer(struct ml_device *ml)
+{
+ struct ml_effect_state *state;
+ unsigned long now = jiffies;
+ unsigned long earliest = 0;
+ unsigned long next_at;
+ int events = 0;
+ int i;
+
+ debug("calculating next timer");
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+
+ state = &ml->states[i];
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ next_at = calculate_next_time(state);
+ else
+ next_at = state->play_at;
+
+ if (time_before_eq(now, next_at) &&
+ (++events == 1 || time_before(next_at, earliest)))
+ earliest = next_at;
+ }
+
+ if (!events) {
+ debug("no actions");
+ del_timer(&ml->timer);
+ } else {
+ debug("timer set");
+ mod_timer(&ml->timer, earliest);
+ }
+}
+
+/*
+ * Apply an envelope to a value
+ */
+static int apply_envelope(struct ml_effect_state *state, int value,
+ struct ff_envelope *envelope)
+{
+ struct ff_effect *effect = state->effect;
+ unsigned long now = jiffies;
+ int time_from_level;
+ int time_of_envelope;
+ int envelope_level;
+ int difference;
+
+ if (envelope->attack_length &&
+ time_before(now,
+ state->play_at + msecs_to_jiffies(envelope->attack_length))) {
+ debug("value = 0x%x, attack_level = 0x%x", value,
+ envelope->attack_level);
+ time_from_level = jiffies_to_msecs(now - state->play_at);
+ time_of_envelope = envelope->attack_length;
+ envelope_level = min_t(__s16, envelope->attack_level, 0x7fff);
+
+ } else if (envelope->fade_length && effect->replay.length &&
+ time_after(now,
+ state->stop_at - msecs_to_jiffies(envelope->fade_length)) &&
+ time_before(now, state->stop_at)) {
+ time_from_level = jiffies_to_msecs(state->stop_at - now);
+ time_of_envelope = envelope->fade_length;
+ envelope_level = min_t(__s16, envelope->fade_level, 0x7fff);
+ } else
+ return value;
+
+ difference = abs(value) - envelope_level;
+
+ debug("difference = %d", difference);
+ debug("time_from_level = 0x%x", time_from_level);
+ debug("time_of_envelope = 0x%x", time_of_envelope);
+
+ difference = difference * time_from_level / time_of_envelope;
+
+ debug("difference = %d", difference);
+
+ return value < 0 ?
+ -(difference + envelope_level) : (difference + envelope_level);
+}
+
+/*
+ * Return the type the effect has to be converted into (memless devices)
+ */
+static int get_compatible_type(struct ff_device *ff, int effect_type)
+{
+
+ if (test_bit(effect_type, ff->ffbit))
+ return effect_type;
+
+ if (effect_type == FF_PERIODIC && test_bit(FF_RUMBLE, ff->ffbit))
+ return FF_RUMBLE;
+
+ printk(KERN_ERR
+ "ff-memless: invalid type in get_compatible_type()\n");
+
+ return 0;
+}
+
+/*
+ * Combine two effects and apply gain.
+ */
+static void ml_combine_effects(struct ff_effect *effect,
+ struct ml_effect_state *state,
+ int gain)
+{
+ struct ff_effect *new = state->effect;
+ unsigned int strong, weak, i;
+ int x, y;
+ fixp_t level;
+
+ switch (new->type) {
+ case FF_CONSTANT:
+ i = new->direction * 360 / 0xffff;
+ level = fixp_new16(apply_envelope(state,
+ new->u.constant.level,
+ &new->u.constant.envelope));
+ x = fixp_mult(fixp_sin(i), level) * gain / 0xffff;
+ y = fixp_mult(-fixp_cos(i), level) * gain / 0xffff;
+ /*
+ * here we abuse ff_ramp to hold x and y of constant force
+ * If in future any driver wants something else than x and y
+ * in s8, this should be changed to something more generic
+ */
+ effect->u.ramp.start_level =
+ max(min(effect->u.ramp.start_level + x, 0x7f), -0x80);
+ effect->u.ramp.end_level =
+ max(min(effect->u.ramp.end_level + y, 0x7f), -0x80);
+ break;
+
+ case FF_RUMBLE:
+ strong = new->u.rumble.strong_magnitude * gain / 0xffff;
+ weak = new->u.rumble.weak_magnitude * gain / 0xffff;
+ effect->u.rumble.strong_magnitude =
+ min(strong + effect->u.rumble.strong_magnitude,
+ 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(weak + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ case FF_PERIODIC:
+ i = apply_envelope(state, abs(new->u.periodic.magnitude),
+ &new->u.periodic.envelope);
+
+ /* here we also scale it 0x7fff => 0xffff */
+ i = i * gain / 0x7fff;
+
+ effect->u.rumble.strong_magnitude =
+ min(i + effect->u.rumble.strong_magnitude, 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(i + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ default:
+ printk(KERN_ERR "ff-memless: invalid type in ml_combine_effects()\n");
+ break;
+ }
+
+}
+
+
+/*
+ * Because memoryless devices have only one effect per effect type active
+ * at one time we have to combine multiple effects into one
+ */
+static int ml_get_combo_effect(struct ml_device *ml,
+ unsigned long *effect_handled,
+ struct ff_effect *combo_effect)
+{
+ struct ff_effect *effect;
+ struct ml_effect_state *state;
+ int effect_type;
+ int i;
+
+ memset(combo_effect, 0, sizeof(struct ff_effect));
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+ if (__test_and_set_bit(i, effect_handled))
+ continue;
+
+ state = &ml->states[i];
+ effect = state->effect;
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (time_before(jiffies, state->play_at))
+ continue;
+
+ /*
+ * here we have started effects that are either
+ * currently playing (and may need be aborted)
+ * or need to start playing.
+ */
+ effect_type = get_compatible_type(ml->dev->ff, effect->type);
+ if (combo_effect->type != effect_type) {
+ if (combo_effect->type != 0) {
+ __clear_bit(i, effect_handled);
+ continue;
+ }
+ combo_effect->type = effect_type;
+ }
+
+ if (__test_and_clear_bit(FF_EFFECT_ABORTING, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else if (effect->replay.length &&
+ time_after_eq(jiffies, state->stop_at)) {
+
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+
+ if (--state->count <= 0) {
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else {
+ state->play_at = jiffies +
+ msecs_to_jiffies(effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(effect->replay.length);
+ }
+ } else {
+ __set_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->adj_at = jiffies;
+ ml_combine_effects(combo_effect, state, ml->gain);
+ }
+ }
+
+ return combo_effect->type != 0;
+}
+
+static void ml_play_effects(struct ml_device *ml)
+{
+ struct ff_effect effect;
+ DECLARE_BITMAP(handled_bm, FF_MEMLESS_EFFECTS);
+
+ memset(handled_bm, 0, sizeof(handled_bm));
+
+ while (ml_get_combo_effect(ml, handled_bm, &effect))
+ ml->play_effect(ml->dev, ml->private, &effect);
+
+ ml_schedule_timer(ml);
+}
+
+static void ml_effect_timer(unsigned long timer_data)
+{
+ struct input_dev *dev = (struct input_dev *)timer_data;
+ struct ml_device *ml = dev->ff->private;
+
+ debug("timer: updating effects");
+
+ spin_lock(&ml->timer_lock);
+ ml_play_effects(ml);
+ spin_unlock(&ml->timer_lock);
+}
+
+static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct ml_device *ml = dev->ff->private;
+ int i;
+
+ spin_lock_bh(&ml->timer_lock);
+
+ ml->gain = gain;
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ __clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
+
+ ml_play_effects(ml);
+
+ spin_unlock_bh(&ml->timer_lock);
+}
+
+static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect_id];
+
+ spin_lock_bh(&ml->timer_lock);
+
+ if (value > 0) {
+ debug("initiated play");
+
+ __set_bit(FF_EFFECT_STARTED, &state->flags);
+ state->count = value;
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+
+ ml_schedule_timer(ml);
+
+ } else {
+ debug("initiated stop");
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ __set_bit(FF_EFFECT_ABORTING, &state->flags);
+ else
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+
+ ml_play_effects(ml);
+ }
+
+ spin_unlock_bh(&ml->timer_lock);
+
+ return 0;
+}
+
+static int ml_ff_upload(struct input_dev *dev,
+ struct ff_effect *effect, struct ff_effect *old)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect->id];
+
+ spin_lock_bh(&ml->timer_lock);
+
+ if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+ ml_schedule_timer(ml);
+ }
+
+ spin_unlock_bh(&ml->timer_lock);
+
+ return 0;
+}
+
+static void ml_ff_destroy(struct ff_device *ff)
+{
+ struct ml_device *ml = ff->private;
+
+ kfree(ml->private);
+}
+
+/**
+ * input_ff_create_memless() - create memoryless FF device
+ * @dev: input device supporting force-feedback
+ * @data: driver-specific data to be passed into @play_effect
+ * @play_effect: driver-specific method for playing FF effect
+ */
+int input_ff_create_memless(struct input_dev *dev, void *data,
+ int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
+{
+ struct ml_device *ml;
+ struct ff_device *ff;
+ int error;
+ int i;
+
+ ml = kzalloc(sizeof(struct ml_device), GFP_KERNEL);
+ if (!ml)
+ return -ENOMEM;
+
+ ml->dev = dev;
+ ml->private = data;
+ ml->play_effect = play_effect;
+ ml->gain = 0xffff;
+ spin_lock_init(&ml->timer_lock);
+ setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
+
+ set_bit(FF_GAIN, dev->ffbit);
+
+ error = input_ff_create(dev, FF_MEMLESS_EFFECTS);
+ if (error) {
+ kfree(ml);
+ return error;
+ }
+
+ ff = dev->ff;
+ ff->private = ml;
+ ff->upload = ml_ff_upload;
+ ff->playback = ml_ff_playback;
+ ff->set_gain = ml_ff_set_gain;
+ ff->destroy = ml_ff_destroy;
+
+ /* we can emulate periodic effects with RUMBLE */
+ if (test_bit(FF_RUMBLE, ff->ffbit)) {
+ set_bit(FF_PERIODIC, dev->ffbit);
+ set_bit(FF_SINE, dev->ffbit);
+ set_bit(FF_TRIANGLE, dev->ffbit);
+ set_bit(FF_SQUARE, dev->ffbit);
+ }
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ ml->states[i].effect = &ff->effects[i];
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create_memless);
diff --git a/drivers/usb/input/fixp-arith.h b/drivers/input/fixp-arith.h
similarity index 100%
rename from drivers/usb/input/fixp-arith.h
rename to drivers/input/fixp-arith.h
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 9cb4b9a..1c8c8a5 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -176,6 +176,10 @@
break;
case EV_FF:
+
+ if (value < 0)
+ return;
+
if (dev->event)
dev->event(dev, type, code, value);
break;
@@ -309,7 +313,8 @@
if (i != NBITS(max)) \
continue;
-static struct input_device_id *input_match_device(struct input_device_id *id, struct input_dev *dev)
+static const struct input_device_id *input_match_device(const struct input_device_id *id,
+ struct input_dev *dev)
{
int i;
@@ -762,7 +767,9 @@
{
struct input_dev *dev = to_input_dev(class_dev);
+ input_ff_destroy(dev);
kfree(dev);
+
module_put(THIS_MODULE);
}
@@ -899,12 +906,13 @@
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
if (dev) {
- dev->dynalloc = 1;
dev->cdev.class = &input_class;
class_device_initialize(&dev->cdev);
mutex_init(&dev->mutex);
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
+
+ __module_get(THIS_MODULE);
}
return dev;
@@ -929,17 +937,10 @@
static atomic_t input_no = ATOMIC_INIT(0);
struct input_handle *handle;
struct input_handler *handler;
- struct input_device_id *id;
+ const struct input_device_id *id;
const char *path;
int error;
- if (!dev->dynalloc) {
- printk(KERN_WARNING "input: device %s is statically allocated, will not register\n"
- "Please convert to input_allocate_device() or contact dtor_core@ameritech.net\n",
- dev->name ? dev->name : "<Unknown>");
- return -EINVAL;
- }
-
set_bit(EV_SYN, dev->evbit);
/*
@@ -955,10 +956,8 @@
dev->rep[REP_PERIOD] = 33;
}
- INIT_LIST_HEAD(&dev->h_list);
list_add_tail(&dev->node, &input_dev_list);
- dev->cdev.class = &input_class;
snprintf(dev->cdev.class_id, sizeof(dev->cdev.class_id),
"input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
@@ -978,8 +977,6 @@
if (error)
goto fail3;
- __module_get(THIS_MODULE);
-
path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
printk(KERN_INFO "input: %s as %s\n",
dev->name ? dev->name : "Unspecified device", path ? path : "N/A");
@@ -1008,9 +1005,12 @@
void input_unregister_device(struct input_dev *dev)
{
struct list_head *node, *next;
+ int code;
- if (!dev)
- return;
+ for (code = 0; code <= KEY_MAX; code++)
+ if (test_bit(code, dev->key))
+ input_report_key(dev, code, 0);
+ input_sync(dev);
del_timer_sync(&dev->timer);
@@ -1037,19 +1037,20 @@
}
EXPORT_SYMBOL(input_unregister_device);
-void input_register_handler(struct input_handler *handler)
+int input_register_handler(struct input_handler *handler)
{
struct input_dev *dev;
struct input_handle *handle;
- struct input_device_id *id;
-
- if (!handler)
- return;
+ const struct input_device_id *id;
INIT_LIST_HEAD(&handler->h_list);
- if (handler->fops != NULL)
+ if (handler->fops != NULL) {
+ if (input_table[handler->minor >> 5])
+ return -EBUSY;
+
input_table[handler->minor >> 5] = handler;
+ }
list_add_tail(&handler->node, &input_handler_list);
@@ -1063,6 +1064,7 @@
}
input_wakeup_procfs_readers();
+ return 0;
}
EXPORT_SYMBOL(input_register_handler);
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index d671575..9f3529a 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -451,7 +451,7 @@
}
}
-static struct file_operations joydev_fops = {
+static const struct file_operations joydev_fops = {
.owner = THIS_MODULE,
.read = joydev_read,
.write = joydev_write,
@@ -465,7 +465,8 @@
.fasync = joydev_fasync,
};
-static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct joydev *joydev;
struct class_device *cdev;
@@ -562,7 +563,7 @@
joydev_free(joydev);
}
-static struct input_device_id joydev_blacklist[] = {
+static const struct input_device_id joydev_blacklist[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
@@ -571,7 +572,7 @@
{ } /* Terminating entry */
};
-static struct input_device_id joydev_ids[] = {
+static const struct input_device_id joydev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
.evbit = { BIT(EV_ABS) },
@@ -605,8 +606,7 @@
static int __init joydev_init(void)
{
- input_register_handler(&joydev_handler);
- return 0;
+ return input_register_handler(&joydev_handler);
}
static void __exit joydev_exit(void)
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
index 50c9076..8fb0c19 100644
--- a/drivers/input/joystick/iforce/iforce-ff.c
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -165,19 +165,19 @@
data[0] = LO(mod_chunk->start);
data[1] = HI(mod_chunk->start);
- data[2] = (100*rk)>>15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
- data[3] = (100*lk)>>15; /* This code is incorrect on cpus lacking arith shift */
+ data[2] = (100 * rk) >> 15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
+ data[3] = (100 * lk) >> 15; /* This code is incorrect on cpus lacking arith shift */
- center = (500*center)>>15;
+ center = (500 * center) >> 15;
data[4] = LO(center);
data[5] = HI(center);
- db = (1000*db)>>16;
+ db = (1000 * db) >> 16;
data[6] = LO(db);
data[7] = HI(db);
- data[8] = (100*rsat)>>16;
- data[9] = (100*lsat)>>16;
+ data[8] = (100 * rsat) >> 16;
+ data[9] = (100 * lsat) >> 16;
iforce_send_packet(iforce, FF_CMD_CONDITION, data);
iforce_dump_packet("condition", FF_CMD_CONDITION, data);
@@ -188,6 +188,7 @@
static unsigned char find_button(struct iforce *iforce, signed short button)
{
int i;
+
for (i = 1; iforce->type->btn[i] >= 0; i++)
if (iforce->type->btn[i] == button)
return i + 1;
@@ -198,19 +199,17 @@
* Analyse the changes in an effect, and tell if we need to send an condition
* parameter packet
*/
-static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
+static int need_condition_modifier(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
- int ret=0;
+ int ret = 0;
int i;
if (new->type != FF_SPRING && new->type != FF_FRICTION) {
printk(KERN_WARNING "iforce.c: bad effect type in need_condition_modifier\n");
- return FALSE;
+ return 0;
}
- for(i=0; i<2; i++) {
+ for (i = 0; i < 2; i++) {
ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
|| old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
|| old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
@@ -225,35 +224,29 @@
* Analyse the changes in an effect, and tell if we need to send a magnitude
* parameter packet
*/
-static int need_magnitude_modifier(struct iforce* iforce, struct ff_effect* effect)
+static int need_magnitude_modifier(struct ff_effect *old, struct ff_effect *effect)
{
- int id = effect->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (effect->type != FF_CONSTANT) {
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
- return FALSE;
+ return 0;
}
- return (old->u.constant.level != effect->u.constant.level);
+ return old->u.constant.level != effect->u.constant.level;
}
/*
* Analyse the changes in an effect, and tell if we need to send an envelope
* parameter packet
*/
-static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effect)
+static int need_envelope_modifier(struct ff_effect *old, struct ff_effect *effect)
{
- int id = effect->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
switch (effect->type) {
case FF_CONSTANT:
if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
|| old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
|| old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
|| old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
- return TRUE;
+ return 1;
break;
case FF_PERIODIC:
@@ -261,30 +254,26 @@
|| old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
|| old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
|| old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
- return TRUE;
+ return 1;
break;
default:
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
}
- return FALSE;
+ return 0;
}
/*
* Analyse the changes in an effect, and tell if we need to send a periodic
* parameter effect
*/
-static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
+static int need_period_modifier(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (new->type != FF_PERIODIC) {
- printk(KERN_WARNING "iforce.c: bad effect type in need_periodic_modifier\n");
- return FALSE;
+ printk(KERN_WARNING "iforce.c: bad effect type in need_period_modifier\n");
+ return 0;
}
-
return (old->u.periodic.period != new->u.periodic.period
|| old->u.periodic.magnitude != new->u.periodic.magnitude
|| old->u.periodic.offset != new->u.periodic.offset
@@ -295,19 +284,16 @@
* Analyse the changes in an effect, and tell if we need to send an effect
* packet
*/
-static int need_core(struct iforce* iforce, struct ff_effect* new)
+static int need_core(struct ff_effect *old, struct ff_effect *new)
{
- int id = new->id;
- struct ff_effect* old = &iforce->core_effects[id].effect;
-
if (old->direction != new->direction
|| old->trigger.button != new->trigger.button
|| old->trigger.interval != new->trigger.interval
|| old->replay.length != new->replay.length
|| old->replay.delay != new->replay.delay)
- return TRUE;
+ return 1;
- return FALSE;
+ return 0;
}
/*
* Send the part common to all effects to the device
@@ -360,7 +346,7 @@
* Upload a periodic effect to the device
* See also iforce_upload_constant.
*/
-int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
u8 wave_code;
int core_id = effect->id;
@@ -371,23 +357,25 @@
int param2_err = 1;
int core_err = 0;
- if (!is_update || need_period_modifier(iforce, effect)) {
+ if (!old || need_period_modifier(old, effect)) {
param1_err = make_period_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.periodic.magnitude, effect->u.periodic.offset,
effect->u.periodic.period, effect->u.periodic.phase);
- if (param1_err) return param1_err;
+ if (param1_err)
+ return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
- if (!is_update || need_envelope_modifier(iforce, effect)) {
+ if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
- is_update,
+ old !=NULL,
effect->u.periodic.envelope.attack_length,
effect->u.periodic.envelope.attack_level,
effect->u.periodic.envelope.fade_length,
effect->u.periodic.envelope.fade_level);
- if (param2_err) return param2_err;
+ if (param2_err)
+ return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
@@ -400,7 +388,7 @@
default: wave_code = 0x20; break;
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
@@ -429,7 +417,7 @@
* 0 Ok, effect created or updated
* 1 effect did not change since last upload, and no packet was therefore sent
*/
-int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
@@ -439,26 +427,28 @@
int param2_err = 1;
int core_err = 0;
- if (!is_update || need_magnitude_modifier(iforce, effect)) {
+ if (!old || need_magnitude_modifier(old, effect)) {
param1_err = make_magnitude_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.constant.level);
- if (param1_err) return param1_err;
+ if (param1_err)
+ return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
- if (!is_update || need_envelope_modifier(iforce, effect)) {
+ if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
- is_update,
+ old != NULL,
effect->u.constant.envelope.attack_length,
effect->u.constant.envelope.attack_level,
effect->u.constant.envelope.fade_length,
effect->u.constant.envelope.fade_level);
- if (param2_err) return param2_err;
+ if (param2_err)
+ return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
@@ -483,7 +473,7 @@
/*
* Upload an condition effect. Those are for example friction, inertia, springs...
*/
-int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int is_update)
+int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
@@ -494,37 +484,39 @@
int core_err = 0;
switch (effect->type) {
- case FF_SPRING: type = 0x40; break;
- case FF_DAMPER: type = 0x41; break;
+ case FF_SPRING: type = 0x40; break;
+ case FF_DAMPER: type = 0x41; break;
default: return -1;
}
- if (!is_update || need_condition_modifier(iforce, effect)) {
+ if (!old || need_condition_modifier(old, effect)) {
param_err = make_condition_modifier(iforce, mod1_chunk,
- is_update,
+ old != NULL,
effect->u.condition[0].right_saturation,
effect->u.condition[0].left_saturation,
effect->u.condition[0].right_coeff,
effect->u.condition[0].left_coeff,
effect->u.condition[0].deadband,
effect->u.condition[0].center);
- if (param_err) return param_err;
+ if (param_err)
+ return param_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
param_err = make_condition_modifier(iforce, mod2_chunk,
- is_update,
+ old != NULL,
effect->u.condition[1].right_saturation,
effect->u.condition[1].left_saturation,
effect->u.condition[1].right_coeff,
effect->u.condition[1].left_coeff,
effect->u.condition[1].deadband,
effect->u.condition[1].center);
- if (param_err) return param_err;
+ if (param_err)
+ return param_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
- if (!is_update || need_core(iforce, effect)) {
+ if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start, mod2_chunk->start,
type, 0xc0,
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
index b4914e7..24c684b 100644
--- a/drivers/input/joystick/iforce/iforce-main.c
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -83,103 +83,57 @@
{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
};
+static int iforce_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct iforce* iforce = dev->private;
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
+ if (value > 0)
+ set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+ else
+ clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
-static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+ iforce_control_playback(iforce, effect_id, value);
+ return 0;
+}
+
+static void iforce_set_gain(struct input_dev *dev, u16 gain)
{
struct iforce* iforce = dev->private;
unsigned char data[3];
- if (type != EV_FF)
- return -1;
+ data[0] = gain >> 9;
+ iforce_send_packet(iforce, FF_CMD_GAIN, data);
+}
- switch (code) {
+static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct iforce* iforce = dev->private;
+ unsigned char data[3];
- case FF_GAIN:
+ data[0] = 0x03;
+ data[1] = magnitude >> 9;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
- data[0] = value >> 9;
- iforce_send_packet(iforce, FF_CMD_GAIN, data);
-
- return 0;
-
- case FF_AUTOCENTER:
-
- data[0] = 0x03;
- data[1] = value >> 9;
- iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
-
- data[0] = 0x04;
- data[1] = 0x01;
- iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
-
- return 0;
-
- default: /* Play or stop an effect */
-
- if (!CHECK_OWNERSHIP(code, iforce)) {
- return -1;
- }
- if (value > 0) {
- set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
- }
- else {
- clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
- }
-
- iforce_control_playback(iforce, code, value);
- return 0;
- }
-
- return -1;
+ data[0] = 0x04;
+ data[1] = 0x01;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
}
/*
* Function called when an ioctl is performed on the event dev entry.
* It uploads an effect to the device
*/
-static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct iforce* iforce = dev->private;
- int id;
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
int ret;
- int is_update;
-/* Check this effect type is supported by this device */
- if (!test_bit(effect->type, iforce->dev->ffbit))
- return -EINVAL;
-
-/*
- * If we want to create a new effect, get a free id
- */
- if (effect->id == -1) {
-
- for (id = 0; id < FF_EFFECTS_MAX; ++id)
- if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags))
- break;
-
- if (id == FF_EFFECTS_MAX || id >= iforce->dev->ff_effects_max)
- return -ENOMEM;
-
- effect->id = id;
- iforce->core_effects[id].owner = current->pid;
- iforce->core_effects[id].flags[0] = (1 << FF_CORE_IS_USED); /* Only IS_USED bit must be set */
-
- is_update = FALSE;
- }
- else {
- /* We want to update an effect */
- if (!CHECK_OWNERSHIP(effect->id, iforce))
- return -EACCES;
-
- /* Parameter type cannot be updated */
- if (effect->type != iforce->core_effects[effect->id].effect.type)
- return -EINVAL;
-
+ if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
/* Check the effect is not already being updated */
- if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags))
+ if (test_bit(FF_CORE_UPDATE, core_effect->flags))
return -EAGAIN;
-
- is_update = TRUE;
}
/*
@@ -188,28 +142,28 @@
switch (effect->type) {
case FF_PERIODIC:
- ret = iforce_upload_periodic(iforce, effect, is_update);
+ ret = iforce_upload_periodic(iforce, effect, old);
break;
case FF_CONSTANT:
- ret = iforce_upload_constant(iforce, effect, is_update);
+ ret = iforce_upload_constant(iforce, effect, old);
break;
case FF_SPRING:
case FF_DAMPER:
- ret = iforce_upload_condition(iforce, effect, is_update);
+ ret = iforce_upload_condition(iforce, effect, old);
break;
default:
return -EINVAL;
}
+
if (ret == 0) {
/* A packet was sent, forbid new updates until we are notified
* that the packet was updated
*/
- set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
+ set_bit(FF_CORE_UPDATE, core_effect->flags);
}
- iforce->core_effects[effect->id].effect = *effect;
return ret;
}
@@ -219,20 +173,9 @@
*/
static int iforce_erase_effect(struct input_dev *dev, int effect_id)
{
- struct iforce* iforce = dev->private;
+ struct iforce *iforce = dev->private;
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
int err = 0;
- struct iforce_core_effect* core_effect;
-
- if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
- return -EINVAL;
-
- core_effect = &iforce->core_effects[effect_id];
-
- /* Check who is trying to erase this effect */
- if (core_effect->owner != current->pid) {
- printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, core_effect->owner);
- return -EACCES;
- }
if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod1_chunk);
@@ -240,7 +183,7 @@
if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod2_chunk);
- /*TODO: remember to change that if more FF_MOD* bits are added */
+ /* TODO: remember to change that if more FF_MOD* bits are added */
core_effect->flags[0] = 0;
return err;
@@ -260,33 +203,11 @@
#endif
}
- /* Enable force feedback */
- iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
-
- return 0;
-}
-
-static int iforce_flush(struct input_dev *dev, struct file *file)
-{
- struct iforce *iforce = dev->private;
- int i;
-
- /* Erase all effects this process owns */
- for (i=0; i<dev->ff_effects_max; ++i) {
-
- if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
- current->pid == iforce->core_effects[i].owner) {
-
- /* Stop effect */
- input_report_ff(dev, i, 0);
-
- /* Free ressources assigned to effect */
- if (iforce_erase_effect(dev, i)) {
- printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
- }
- }
-
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Enable force feedback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
}
+
return 0;
}
@@ -295,17 +216,18 @@
struct iforce *iforce = dev->private;
int i;
- /* Check: no effect should be present in memory */
- for (i=0; i<dev->ff_effects_max; ++i) {
- if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
- break;
- }
- if (i<dev->ff_effects_max) {
- printk(KERN_WARNING "iforce_release: Device still owns effects\n");
- }
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Check: no effects should be present in memory */
+ for (i = 0; i < dev->ff->max_effects; i++) {
+ if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
+ printk(KERN_WARNING "iforce_release: Device still owns effects\n");
+ break;
+ }
+ }
- /* Disable force feedback playback */
- iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
+ /* Disable force feedback playback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
+ }
switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
@@ -342,8 +264,10 @@
int iforce_init_device(struct iforce *iforce)
{
struct input_dev *input_dev;
+ struct ff_device *ff;
unsigned char c[] = "CEOV";
- int i;
+ int i, error;
+ int ff_effects = 0;
input_dev = input_allocate_device();
if (!input_dev)
@@ -378,11 +302,6 @@
input_dev->name = "Unknown I-Force device";
input_dev->open = iforce_open;
input_dev->close = iforce_release;
- input_dev->flush = iforce_flush;
- input_dev->event = iforce_input_event;
- input_dev->upload_effect = iforce_upload_effect;
- input_dev->erase_effect = iforce_erase_effect;
- input_dev->ff_effects_max = 10;
/*
* On-device memory allocation.
@@ -430,15 +349,15 @@
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
if (!iforce_get_id_packet(iforce, "N"))
- iforce->dev->ff_effects_max = iforce->edata[1];
+ ff_effects = iforce->edata[1];
else
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
/* Check if the device can store more effects than the driver can really handle */
- if (iforce->dev->ff_effects_max > FF_EFFECTS_MAX) {
- printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
- iforce->dev->ff_effects_max, FF_EFFECTS_MAX);
- iforce->dev->ff_effects_max = FF_EFFECTS_MAX;
+ if (ff_effects > IFORCE_EFFECTS_MAX) {
+ printk(KERN_WARNING "iforce: Limiting number of effects to %d (device reports %d)\n",
+ IFORCE_EFFECTS_MAX, ff_effects);
+ ff_effects = IFORCE_EFFECTS_MAX;
}
/*
@@ -472,12 +391,10 @@
* Set input device bitfields and ranges.
*/
- input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF_STATUS);
- for (i = 0; iforce->type->btn[i] >= 0; i++) {
- signed short t = iforce->type->btn[i];
- set_bit(t, input_dev->keybit);
- }
+ for (i = 0; iforce->type->btn[i] >= 0; i++)
+ set_bit(iforce->type->btn[i], input_dev->keybit);
set_bit(BTN_DEAD, input_dev->keybit);
for (i = 0; iforce->type->abs[i] >= 0; i++) {
@@ -516,9 +433,24 @@
}
}
- for (i = 0; iforce->type->ff[i] >= 0; i++)
- set_bit(iforce->type->ff[i], input_dev->ffbit);
+ if (ff_effects) {
+ for (i = 0; iforce->type->ff[i] >= 0; i++)
+ set_bit(iforce->type->ff[i], input_dev->ffbit);
+
+ error = input_ff_create(input_dev, ff_effects);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }
+
+ ff = input_dev->ff;
+ ff->upload = iforce_upload_effect;
+ ff->erase = iforce_erase_effect;
+ ff->set_gain = iforce_set_gain;
+ ff->set_autocenter = iforce_set_autocenter;
+ ff->playback = iforce_playback;
+ }
/*
* Register input device.
*/
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
index 76cb1f8..8632d47 100644
--- a/drivers/input/joystick/iforce/iforce-packets.c
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -140,7 +140,10 @@
{
int i;
- for (i = 0; i < iforce->dev->ff_effects_max; ++i) {
+ if (!iforce->dev->ff)
+ return 0;
+
+ for (i = 0; i < iforce->dev->ff->max_effects; ++i) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
(iforce->core_effects[i].mod1_chunk.start == addr ||
iforce->core_effects[i].mod2_chunk.start == addr)) {
@@ -229,19 +232,17 @@
i = data[1] & 0x7f;
if (data[1] & 0x80) {
if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
- /* Report play event */
- input_report_ff_status(dev, i, FF_STATUS_PLAYING);
+ /* Report play event */
+ input_report_ff_status(dev, i, FF_STATUS_PLAYING);
}
- }
- else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+ } else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report stop event */
input_report_ff_status(dev, i, FF_STATUS_STOPPED);
}
if (LO(cmd) > 3) {
int j;
- for (j=3; j<LO(cmd); j+=2) {
+ for (j = 3; j < LO(cmd); j += 2)
mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
- }
}
break;
}
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
index e9924d6..947df27 100644
--- a/drivers/input/joystick/iforce/iforce.h
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -51,10 +51,7 @@
#define IFORCE_232 1
#define IFORCE_USB 2
-#define FALSE 0
-#define TRUE 1
-
-#define FF_EFFECTS_MAX 32
+#define IFORCE_EFFECTS_MAX 32
/* Each force feedback effect is made of one core effect, which can be
* associated to at most to effect modifiers
@@ -67,24 +64,11 @@
#define FF_CORE_UPDATE 5 /* Effect is being updated */
#define FF_MODCORE_MAX 5
-#define CHECK_OWNERSHIP(i, iforce) \
- ((i) < FF_EFFECTS_MAX && i >= 0 && \
- test_bit(FF_CORE_IS_USED, (iforce)->core_effects[(i)].flags) && \
- (current->pid == 0 || \
- (iforce)->core_effects[(i)].owner == current->pid))
-
struct iforce_core_effect {
/* Information about where modifiers are stored in the device's memory */
struct resource mod1_chunk;
struct resource mod2_chunk;
unsigned long flags[NBITS(FF_MODCORE_MAX)];
- pid_t owner;
- /* Used to keep track of parameters of an effect. They are needed
- * to know what parts of an effect changed in an update operation.
- * We try to send only parameter packets if possible, as sending
- * effect parameter requires the effect to be stoped and restarted
- */
- struct ff_effect effect;
};
#define FF_CMD_EFFECT 0x010e
@@ -145,7 +129,7 @@
/* Force Feedback */
wait_queue_head_t wait;
struct resource device_memory;
- struct iforce_core_effect core_effects[FF_EFFECTS_MAX];
+ struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
struct mutex mem_mutex;
};
@@ -182,9 +166,9 @@
int iforce_get_id_packet(struct iforce *iforce, char *packet);
/* iforce-ff.c */
-int iforce_upload_periodic(struct iforce*, struct ff_effect*, int is_update);
-int iforce_upload_constant(struct iforce*, struct ff_effect*, int is_update);
-int iforce_upload_condition(struct iforce*, struct ff_effect*, int is_update);
+int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
/* Public variables */
extern struct serio_driver iforce_serio_drv;
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 83eac3a..c62e00c 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -121,6 +121,17 @@
To compile this driver as a module, choose M here: the
module will be called newtonkbd.
+config KEYBOARD_STOWAWAY
+ tristate "Stowaway keyboard"
+ select SERIO
+ help
+ Say Y here if you have a Stowaway keyboard on a serial port.
+ Stowaway compatible keyboards like Dicota Input-PDA keyboard
+ are also supported by this driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called stowaway.
+
config KEYBOARD_CORGI
tristate "Corgi keyboard"
depends on PXA_SHARPSL
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index b265391..4c79e7b 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -11,6 +11,7 @@
obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
+obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index a86afd0..40244d4 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -652,9 +652,7 @@
return 0;
}
- if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */
- param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */
- param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */
+ if (!ps2_is_keyboard_id(param[0]))
return -1;
atkbd->id = (param[0] << 8) | param[1];
diff --git a/drivers/input/keyboard/stowaway.c b/drivers/input/keyboard/stowaway.c
new file mode 100644
index 0000000..04c54c5
--- /dev/null
+++ b/drivers/input/keyboard/stowaway.c
@@ -0,0 +1,187 @@
+/*
+ * Stowaway keyboard driver for Linux
+ */
+
+/*
+ * Copyright (c) 2006 Marek Vasut
+ *
+ * Based on Newton keyboard driver for Linux
+ * by Justin Cormack
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
+ * Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "Stowaway keyboard driver"
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define SKBD_KEY_MASK 0x7f
+#define SKBD_RELEASE 0x80
+
+static unsigned char skbd_keycode[128] = {
+ KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
+ 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
+ KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
+ KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
+ 0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
+ 0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
+ KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
+ KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
+ KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
+ KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
+ KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
+ KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
+ KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
+};
+
+struct skbd {
+ unsigned char keycode[128];
+ struct input_dev *dev;
+ struct serio *serio;
+ char phys[32];
+};
+
+static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags, struct pt_regs *regs)
+{
+ struct skbd *skbd = serio_get_drvdata(serio);
+ struct input_dev *dev = skbd->dev;
+
+ if (skbd->keycode[data & SKBD_KEY_MASK]) {
+ input_regs(dev, regs);
+ input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
+ !(data & SKBD_RELEASE));
+ input_sync(dev);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int skbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct skbd *skbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!skbd || !input_dev)
+ goto fail1;
+
+ skbd->serio = serio;
+ skbd->dev = input_dev;
+ snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
+ memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
+
+ input_dev->name = "Stowaway Keyboard";
+ input_dev->phys = skbd->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_STOWAWAY;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &serio->dev;
+ input_dev->private = skbd;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+ input_dev->keycode = skbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
+ for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
+ set_bit(skbd_keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+
+ serio_set_drvdata(serio, skbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(skbd->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(skbd);
+ return err;
+}
+
+static void skbd_disconnect(struct serio *serio)
+{
+ struct skbd *skbd = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(skbd->dev);
+ kfree(skbd);
+}
+
+static struct serio_device_id skbd_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_STOWAWAY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
+
+static struct serio_driver skbd_drv = {
+ .driver = {
+ .name = "stowaway",
+ },
+ .description = DRIVER_DESC,
+ .id_table = skbd_serio_ids,
+ .interrupt = skbd_interrupt,
+ .connect = skbd_connect,
+ .disconnect = skbd_disconnect,
+};
+
+static int __init skbd_init(void)
+{
+ serio_register_driver(&skbd_drv);
+ return 0;
+}
+
+static void __exit skbd_exit(void)
+{
+ serio_unregister_driver(&skbd_drv);
+}
+
+module_init(skbd_init);
+module_exit(skbd_exit);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index d723e9a..9516439 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -20,6 +20,9 @@
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
+ * 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
+ * - updated ff support for the changes in kernel interface
+ * - added MODULE_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
@@ -107,18 +110,31 @@
return request->retval;
}
-static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
+{
+ uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
+}
+
+static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
+}
+
+static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
+{
+ return uinput_dev_event(dev, EV_FF, effect_id, value);
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_request request;
int retval;
- if (!test_bit(EV_FF, dev->evbit))
- return -ENOSYS;
-
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
- request.u.effect = effect;
+ request.u.upload.effect = effect;
+ request.u.upload.old = old;
retval = uinput_request_reserve_slot(dev->private, &request);
if (!retval)
@@ -168,6 +184,7 @@
static int uinput_create_device(struct uinput_device *udev)
{
+ struct input_dev *dev = udev->dev;
int error;
if (udev->state != UIST_SETUP_COMPLETE) {
@@ -175,15 +192,29 @@
return -EINVAL;
}
- error = input_register_device(udev->dev);
- if (error) {
- uinput_destroy_device(udev);
- return error;
+ if (udev->ff_effects_max) {
+ error = input_ff_create(dev, udev->ff_effects_max);
+ if (error)
+ goto fail1;
+
+ dev->ff->upload = uinput_dev_upload_effect;
+ dev->ff->erase = uinput_dev_erase_effect;
+ dev->ff->playback = uinput_dev_playback;
+ dev->ff->set_gain = uinput_dev_set_gain;
+ dev->ff->set_autocenter = uinput_dev_set_autocenter;
}
+ error = input_register_device(udev->dev);
+ if (error)
+ goto fail2;
+
udev->state = UIST_CREATED;
return 0;
+
+ fail2: input_ff_destroy(dev);
+ fail1: uinput_destroy_device(udev);
+ return error;
}
static int uinput_open(struct inode *inode, struct file *file)
@@ -243,8 +274,6 @@
return -ENOMEM;
udev->dev->event = uinput_dev_event;
- udev->dev->upload_effect = uinput_dev_upload_effect;
- udev->dev->erase_effect = uinput_dev_erase_effect;
udev->dev->private = udev;
return 0;
@@ -278,6 +307,8 @@
goto exit;
}
+ udev->ff_effects_max = user_dev->ff_effects_max;
+
size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
if (!size) {
retval = -EINVAL;
@@ -296,7 +327,6 @@
dev->id.vendor = user_dev->id.vendor;
dev->id.product = user_dev->id.product;
dev->id.version = user_dev->id.version;
- dev->ff_effects_max = user_dev->ff_effects_max;
size = sizeof(int) * (ABS_MAX + 1);
memcpy(dev->absmax, user_dev->absmax, size);
@@ -525,12 +555,17 @@
break;
}
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
+ if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
ff_up.retval = 0;
- memcpy(&ff_up.effect, req->u.effect, sizeof(struct ff_effect));
+ memcpy(&ff_up.effect, req->u.upload.effect, sizeof(struct ff_effect));
+ if (req->u.upload.old)
+ memcpy(&ff_up.old, req->u.upload.old, sizeof(struct ff_effect));
+ else
+ memset(&ff_up.old, 0, sizeof(struct ff_effect));
+
if (copy_to_user(p, &ff_up, sizeof(ff_up))) {
retval = -EFAULT;
break;
@@ -561,12 +596,11 @@
break;
}
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
+ if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
req->retval = ff_up.retval;
- memcpy(req->u.effect, &ff_up.effect, sizeof(struct ff_effect));
uinput_request_done(udev, req);
break;
@@ -622,6 +656,7 @@
MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
MODULE_DESCRIPTION("User level driver support for input subsystem");
MODULE_LICENSE("GPL");
+MODULE_VERSION("0.3");
module_init(uinput_init);
module_exit(uinput_exit);
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index de0f46d..4639537 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -248,13 +248,10 @@
keymap = dmi->driver_data;
for (key = keymap; key->type != KE_END; key++) {
- if (key->type == KE_WIFI) {
+ if (key->type == KE_WIFI)
have_wifi = 1;
- break;
- } else if (key->type == KE_BLUETOOTH) {
+ else if (key->type == KE_BLUETOOTH)
have_bluetooth = 1;
- break;
- }
}
return 1;
}
@@ -389,7 +386,16 @@
},
.driver_data = keymap_acer_travelmate_240
},
- {
+ {
+ .callback = dmi_matched,
+ .ident = "Acer TravelMate 2424NWXCi",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
.callback = dmi_matched,
.ident = "AOpen 1559AS",
.matches = {
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 070d753..450b68a 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -36,7 +36,7 @@
#define ALPS_PASS 0x20
#define ALPS_FW_BK_2 0x40
-static struct alps_model_info alps_model_data[] = {
+static const struct alps_model_info alps_model_data[] = {
{ { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
{ { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
{ { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
@@ -209,10 +209,10 @@
return PSMOUSE_GOOD_DATA;
}
-static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
+static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
- unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
+ static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
unsigned char param[4];
int i;
@@ -504,7 +504,7 @@
int alps_detect(struct psmouse *psmouse, int set_properties)
{
int version;
- struct alps_model_info *model;
+ const struct alps_model_info *model;
if (!(model = alps_get_model(psmouse, &version)))
return -1;
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index e428f8d..69db732 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -25,7 +25,7 @@
struct input_dev *dev2; /* Relative device */
char name[32]; /* Name */
char phys[32]; /* Phys */
- struct alps_model_info *i; /* Info */
+ const struct alps_model_info *i;/* Info */
int prev_fin; /* Finger bit from previous packet */
};
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
index c14395b..5e9d250 100644
--- a/drivers/input/mouse/lifebook.c
+++ b/drivers/input/mouse/lifebook.c
@@ -115,13 +115,15 @@
static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
- unsigned char params[] = { 0, 1, 2, 2, 3 };
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
if (resolution == 0 || resolution > 400)
resolution = 400;
- ps2_command(&psmouse->ps2dev, ¶ms[resolution / 100], PSMOUSE_CMD_SETRES);
- psmouse->resolution = 50 << params[resolution / 100];
+ p = params[resolution / 100];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 50 << p;
}
static void lifebook_disconnect(struct psmouse *psmouse)
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 54b696c..7972eec 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -30,9 +30,9 @@
#define PS2PP_NAV_BTN 0x20
struct ps2pp_info {
- const int model;
- unsigned const int kind;
- unsigned const int features;
+ u8 model;
+ u8 kind;
+ u16 features;
};
/*
@@ -199,9 +199,9 @@
device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll.dattr);
}
-static struct ps2pp_info *get_model_info(unsigned char model)
+static const struct ps2pp_info *get_model_info(unsigned char model)
{
- static struct ps2pp_info ps2pp_list[] = {
+ static const struct ps2pp_info ps2pp_list[] = {
{ 12, 0, PS2PP_SIDE_BTN},
{ 13, 0, 0 },
{ 15, PS2PP_KIND_MX, /* MX1000 */
@@ -215,6 +215,7 @@
{ 51, 0, 0 },
{ 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
{ 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 56, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, /* Cordless MouseMan Wheel */
{ 61, PS2PP_KIND_MX, /* MX700 */
PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
@@ -244,12 +245,11 @@
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
{ 114, PS2PP_KIND_MX, /* MX310 */
PS2PP_WHEEL | PS2PP_SIDE_BTN |
- PS2PP_TASK_BTN | PS2PP_EXTRA_BTN },
- { }
+ PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
};
int i;
- for (i = 0; ps2pp_list[i].model; i++)
+ for (i = 0; i < ARRAY_SIZE(ps2pp_list); i++)
if (model == ps2pp_list[i].model)
return &ps2pp_list[i];
@@ -261,7 +261,8 @@
* Set up input device's properties based on the detected mouse model.
*/
-static void ps2pp_set_model_properties(struct psmouse *psmouse, struct ps2pp_info *model_info,
+static void ps2pp_set_model_properties(struct psmouse *psmouse,
+ const struct ps2pp_info *model_info,
int using_ps2pp)
{
struct input_dev *input_dev = psmouse->dev;
@@ -327,7 +328,7 @@
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
unsigned char model, buttons;
- struct ps2pp_info *model_info;
+ const struct ps2pp_info *model_info;
int use_ps2pp = 0;
param[0] = 0;
@@ -349,7 +350,7 @@
/*
* Do Logitech PS2++ / PS2T++ magic init.
*/
- if (model == 97) { /* Touch Pad 3 */
+ if (model_info->kind == PS2PP_KIND_TP3) { /* Touch Pad 3 */
/* Unprotect RAM */
param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 343afa3..9fb7eb6 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -112,8 +112,8 @@
struct psmouse_protocol {
enum psmouse_type type;
- char *name;
- char *alias;
+ const char *name;
+ const char *alias;
int maxproto;
int (*detect)(struct psmouse *, int);
int (*init)(struct psmouse *);
@@ -507,15 +507,17 @@
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
- unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
+ static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
int i;
param[0] = 10;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 0;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
- for (i = 0; seq[i]; i++)
- ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
+ for (i = 0; i < ARRAY_SIZE(seq); i++) {
+ param[0] = seq[i];
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ }
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
if (param[0] != 2)
@@ -652,7 +654,7 @@
return PSMOUSE_PS2;
}
-static struct psmouse_protocol psmouse_protocols[] = {
+static const struct psmouse_protocol psmouse_protocols[] = {
{
.type = PSMOUSE_PS2,
.name = "PS/2",
@@ -726,7 +728,7 @@
},
};
-static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
{
int i;
@@ -738,9 +740,9 @@
return &psmouse_protocols[0];
}
-static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
+static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
{
- struct psmouse_protocol *p;
+ const struct psmouse_protocol *p;
int i;
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
@@ -795,13 +797,15 @@
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
- unsigned char params[] = { 0, 1, 2, 2, 3 };
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
if (resolution == 0 || resolution > 200)
resolution = 200;
- ps2_command(&psmouse->ps2dev, ¶ms[resolution / 50], PSMOUSE_CMD_SETRES);
- psmouse->resolution = 25 << params[resolution / 50];
+ p = params[resolution / 50];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 25 << p;
}
/*
@@ -810,12 +814,14 @@
static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
{
- unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ unsigned char r;
int i = 0;
while (rates[i] > rate) i++;
- ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
- psmouse->rate = rates[i];
+ r = rates[i];
+ ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
+ psmouse->rate = r;
}
/*
@@ -1031,7 +1037,7 @@
mutex_unlock(&psmouse_mutex);
}
-static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
+static int psmouse_switch_protocol(struct psmouse *psmouse, const struct psmouse_protocol *proto)
{
struct input_dev *input_dev = psmouse->dev;
@@ -1362,7 +1368,7 @@
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
struct input_dev *new_dev;
- struct psmouse_protocol *proto;
+ const struct psmouse_protocol *proto;
int retry = 0;
if (!(proto = psmouse_protocol_by_name(buf, count)))
@@ -1459,7 +1465,7 @@
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
{
- struct psmouse_protocol *proto;
+ const struct psmouse_protocol *proto;
if (!val)
return -EINVAL;
diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c
index 0023501..680b323 100644
--- a/drivers/input/mouse/sermouse.c
+++ b/drivers/input/mouse/sermouse.c
@@ -42,7 +42,7 @@
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
+static const char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
"Logitech M+ Mouse", "Microsoft MZ Mouse", "Logitech MZ+ Mouse",
"Logitech MZ++ Mouse"};
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index ad5d0a8..392108c 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -430,11 +430,11 @@
static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
{
- static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
- static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
- static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
- static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
- static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
+ static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
+ static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
+ static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
if (idx < 0 || idx > 4)
return 0;
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 1f851ac..a22a74a 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -614,7 +614,7 @@
(list->mousedev->exist ? 0 : (POLLHUP | POLLERR));
}
-static struct file_operations mousedev_fops = {
+static const struct file_operations mousedev_fops = {
.owner = THIS_MODULE,
.read = mousedev_read,
.write = mousedev_write,
@@ -624,7 +624,8 @@
.fasync = mousedev_fasync,
};
-static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct mousedev *mousedev;
struct class_device *cdev;
@@ -688,7 +689,7 @@
}
}
-static struct input_device_id mousedev_ids[] = {
+static const struct input_device_id mousedev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
@@ -737,7 +738,12 @@
static int __init mousedev_init(void)
{
- input_register_handler(&mousedev_handler);
+ struct class_device *cdev;
+ int error;
+
+ error = input_register_handler(&mousedev_handler);
+ if (error)
+ return error;
memset(&mousedev_mix, 0, sizeof(struct mousedev));
INIT_LIST_HEAD(&mousedev_mix.list);
@@ -746,12 +752,20 @@
mousedev_mix.exist = 1;
mousedev_mix.minor = MOUSEDEV_MIX;
- class_device_create(&input_class, NULL,
+ cdev = class_device_create(&input_class, NULL,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), NULL, "mice");
+ if (IS_ERR(cdev)) {
+ input_unregister_handler(&mousedev_handler);
+ return PTR_ERR(cdev);
+ }
#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
- if (!(psaux_registered = !misc_register(&psaux_mouse)))
- printk(KERN_WARNING "mice: could not misc_register the device\n");
+ error = misc_register(&psaux_mouse);
+ if (error)
+ printk(KERN_WARNING "mice: could not register psaux device, "
+ "error: %d\n", error);
+ else
+ psaux_registered = 1;
#endif
printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n");
diff --git a/drivers/input/power.c b/drivers/input/power.c
index 51a519e..ee82464 100644
--- a/drivers/input/power.c
+++ b/drivers/input/power.c
@@ -98,7 +98,7 @@
static struct input_handle *power_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct input_handle *handle;
@@ -120,7 +120,7 @@
kfree(handle);
}
-static struct input_device_id power_ids[] = {
+static const struct input_device_id power_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
@@ -150,8 +150,7 @@
static int __init power_init(void)
{
- input_register_handler(&power_handler);
- return 0;
+ return input_register_handler(&power_handler);
}
static void __exit power_exit(void)
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index f606e96..8738edd 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -160,6 +160,13 @@
},
},
{
+ .ident = "Toshiba Equium A110",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
+ },
+ },
+ {
.ident = "Alienware Sentia",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
@@ -180,6 +187,13 @@
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
},
},
+ {
+ .ident = "Amoi M636/A737",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
+ },
+ },
{ }
};
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 06a3f25..1bb0c76 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -90,46 +90,24 @@
struct i8042_port {
struct serio *serio;
int irq;
- unsigned char disable;
- unsigned char irqen;
unsigned char exists;
signed char mux;
- char name[8];
};
#define I8042_KBD_PORT_NO 0
#define I8042_AUX_PORT_NO 1
#define I8042_MUX_PORT_NO 2
#define I8042_NUM_PORTS (I8042_NUM_MUX_PORTS + 2)
-static struct i8042_port i8042_ports[I8042_NUM_PORTS] = {
- {
- .disable = I8042_CTR_KBDDIS,
- .irqen = I8042_CTR_KBDINT,
- .mux = -1,
- .name = "KBD",
- },
- {
- .disable = I8042_CTR_AUXDIS,
- .irqen = I8042_CTR_AUXINT,
- .mux = -1,
- .name = "AUX",
- }
-};
+
+static struct i8042_port i8042_ports[I8042_NUM_PORTS];
static unsigned char i8042_initial_ctr;
static unsigned char i8042_ctr;
-static unsigned char i8042_mux_open;
static unsigned char i8042_mux_present;
-static struct timer_list i8042_timer;
+static unsigned char i8042_kbd_irq_registered;
+static unsigned char i8042_aux_irq_registered;
static struct platform_device *i8042_platform_device;
-
-/*
- * Shared IRQ's require a device pointer, but this driver doesn't support
- * multiple devices
- */
-#define i8042_request_irq_cookie (&i8042_timer)
-
static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
/*
@@ -141,6 +119,7 @@
static int i8042_wait_read(void)
{
int i = 0;
+
while ((~i8042_read_status() & I8042_STR_OBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
@@ -151,6 +130,7 @@
static int i8042_wait_write(void)
{
int i = 0;
+
while ((i8042_read_status() & I8042_STR_IBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
@@ -192,48 +172,57 @@
* encoded in bits 8-11 of the command number.
*/
-static int i8042_command(unsigned char *param, int command)
+static int __i8042_command(unsigned char *param, int command)
{
- unsigned long flags;
- int i, retval, auxerr = 0;
+ int i, error;
if (i8042_noloop && command == I8042_CMD_AUX_LOOP)
return -1;
- spin_lock_irqsave(&i8042_lock, flags);
-
- if ((retval = i8042_wait_write()))
- goto out;
+ error = i8042_wait_write();
+ if (error)
+ return error;
dbg("%02x -> i8042 (command)", command & 0xff);
i8042_write_command(command & 0xff);
for (i = 0; i < ((command >> 12) & 0xf); i++) {
- if ((retval = i8042_wait_write()))
- goto out;
+ error = i8042_wait_write();
+ if (error)
+ return error;
dbg("%02x -> i8042 (parameter)", param[i]);
i8042_write_data(param[i]);
}
for (i = 0; i < ((command >> 8) & 0xf); i++) {
- if ((retval = i8042_wait_read()))
- goto out;
+ error = i8042_wait_read();
+ if (error) {
+ dbg(" -- i8042 (timeout)");
+ return error;
+ }
if (command == I8042_CMD_AUX_LOOP &&
!(i8042_read_status() & I8042_STR_AUXDATA)) {
- retval = auxerr = -1;
- goto out;
+ dbg(" -- i8042 (auxerr)");
+ return -1;
}
param[i] = i8042_read_data();
dbg("%02x <- i8042 (return)", param[i]);
}
- if (retval)
- dbg(" -- i8042 (%s)", auxerr ? "auxerr" : "timeout");
+ return 0;
+}
- out:
+static int i8042_command(unsigned char *param, int command)
+{
+ unsigned long flags;
+ int retval;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ retval = __i8042_command(param, command);
spin_unlock_irqrestore(&i8042_lock, flags);
+
return retval;
}
@@ -248,7 +237,7 @@
spin_lock_irqsave(&i8042_lock, flags);
- if(!(retval = i8042_wait_write())) {
+ if (!(retval = i8042_wait_write())) {
dbg("%02x -> i8042 (kbd-data)", c);
i8042_write_data(c);
}
@@ -287,100 +276,6 @@
}
/*
- * i8042_activate_port() enables port on a chip.
- */
-
-static int i8042_activate_port(struct i8042_port *port)
-{
- if (!port->serio)
- return -1;
-
- i8042_flush();
-
- /*
- * Enable port again here because it is disabled if we are
- * resuming (normally it is enabled already).
- */
- i8042_ctr &= ~port->disable;
-
- i8042_ctr |= port->irqen;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- i8042_ctr &= ~port->irqen;
- return -1;
- }
-
- return 0;
-}
-
-
-/*
- * i8042_open() is called when a port is open by the higher layer.
- * It allocates the interrupt and calls i8042_enable_port.
- */
-
-static int i8042_open(struct serio *serio)
-{
- struct i8042_port *port = serio->port_data;
-
- if (port->mux != -1)
- if (i8042_mux_open++)
- return 0;
-
- if (request_irq(port->irq, i8042_interrupt,
- IRQF_SHARED, "i8042", i8042_request_irq_cookie)) {
- printk(KERN_ERR "i8042.c: Can't get irq %d for %s, unregistering the port.\n", port->irq, port->name);
- goto irq_fail;
- }
-
- if (i8042_activate_port(port)) {
- printk(KERN_ERR "i8042.c: Can't activate %s, unregistering the port\n", port->name);
- goto activate_fail;
- }
-
- i8042_interrupt(0, NULL, NULL);
-
- return 0;
-
- activate_fail:
- free_irq(port->irq, i8042_request_irq_cookie);
-
- irq_fail:
- serio_unregister_port_delayed(serio);
-
- return -1;
-}
-
-/*
- * i8042_close() frees the interrupt, so that it can possibly be used
- * by another driver. We never know - if the user doesn't have a mouse,
- * the BIOS could have used the AUX interrupt for PCI.
- */
-
-static void i8042_close(struct serio *serio)
-{
- struct i8042_port *port = serio->port_data;
-
- if (port->mux != -1)
- if (--i8042_mux_open)
- return;
-
- i8042_ctr &= ~port->irqen;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_WARNING "i8042.c: Can't write CTR while closing %s.\n", port->name);
-/*
- * We still want to continue and free IRQ so if more data keeps coming in
- * kernel will just ignore the irq.
- */
- }
-
- free_irq(port->irq, i8042_request_irq_cookie);
-
- i8042_flush();
-}
-
-/*
* i8042_start() is called by serio core when port is about to finish
* registering. It will mark port as existing so i8042_interrupt can
* start sending data through it.
@@ -423,8 +318,6 @@
unsigned int port_no;
int ret;
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
-
spin_lock_irqsave(&i8042_lock, flags);
str = i8042_read_status();
if (unlikely(~str & I8042_STR_OBF)) {
@@ -480,8 +373,8 @@
port = &i8042_ports[port_no];
- dbg("%02x <- i8042 (interrupt, %s, %d%s%s)",
- data, port->name, irq,
+ dbg("%02x <- i8042 (interrupt, %d, %d%s%s)",
+ data, port_no, irq,
dfl & SERIO_PARITY ? ", bad parity" : "",
dfl & SERIO_TIMEOUT ? ", timeout" : "");
@@ -494,6 +387,58 @@
}
/*
+ * i8042_enable_kbd_port enables keybaord port on chip
+ */
+
+static int i8042_enable_kbd_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_KBDDIS;
+ i8042_ctr |= I8042_CTR_KBDINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042.c: Failed to enable KBD port.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_aux_port enables AUX (mouse) port on chip
+ */
+
+static int i8042_enable_aux_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_AUXDIS;
+ i8042_ctr |= I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042.c: Failed to enable AUX port.\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_mux_ports enables 4 individual AUX ports after
+ * the controller has been switched into Multiplexed mode
+ */
+
+static int i8042_enable_mux_ports(void)
+{
+ unsigned char param;
+ int i;
+
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ i8042_command(¶m, I8042_CMD_MUX_PFX + i);
+ i8042_command(¶m, I8042_CMD_AUX_ENABLE);
+ }
+
+ return i8042_enable_aux_port();
+}
+
+/*
* i8042_set_mux_mode checks whether the controller has an active
* multiplexor and puts the chip into Multiplexed (1) or Legacy (0) mode.
*/
@@ -510,8 +455,7 @@
/*
* Internal loopback test - send three bytes, they should come back from the
- * mouse interface, the last should be version. Note that we negate mouseport
- * command responses for the i8042_check_aux() routine.
+ * mouse interface, the last should be version.
*/
param = 0xf0;
@@ -530,41 +474,6 @@
return 0;
}
-
-/*
- * i8042_enable_mux_ports enables 4 individual AUX ports after
- * the controller has been switched into Multiplexed mode
- */
-
-static int i8042_enable_mux_ports(void)
-{
- unsigned char param;
- int i;
-/*
- * Disable all muxed ports by disabling AUX.
- */
-
- i8042_ctr |= I8042_CTR_AUXDIS;
- i8042_ctr &= ~I8042_CTR_AUXINT;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_ERR "i8042.c: Failed to disable AUX port, can't use MUX.\n");
- return -1;
- }
-
-/*
- * Enable all muxed ports.
- */
-
- for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
- i8042_command(¶m, I8042_CMD_MUX_PFX + i);
- i8042_command(¶m, I8042_CMD_AUX_ENABLE);
- }
-
- return 0;
-}
-
-
/*
* i8042_check_mux() checks whether the controller supports the PS/2 Active
* Multiplexing specification by Synaptics, Phoenix, Insyde and
@@ -578,21 +487,56 @@
if (i8042_set_mux_mode(1, &mux_version))
return -1;
- /* Workaround for interference with USB Legacy emulation */
- /* that causes a v10.12 MUX to be found. */
+/*
+ * Workaround for interference with USB Legacy emulation
+ * that causes a v10.12 MUX to be found.
+ */
if (mux_version == 0xAC)
return -1;
printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
(mux_version >> 4) & 0xf, mux_version & 0xf);
- if (i8042_enable_mux_ports())
- return -1;
+/*
+ * Disable all muxed ports by disabling AUX.
+ */
+ i8042_ctr |= I8042_CTR_AUXDIS;
+ i8042_ctr &= ~I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ printk(KERN_ERR "i8042.c: Failed to disable AUX port, can't use MUX.\n");
+ return -EIO;
+ }
i8042_mux_present = 1;
+
return 0;
}
+/*
+ * The following is used to test AUX IRQ delivery.
+ */
+static struct completion i8042_aux_irq_delivered __devinitdata;
+static int i8042_irq_being_tested __devinitdata;
+
+static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id, struct pt_regs *regs)
+{
+ unsigned long flags;
+ unsigned char str, data;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ str = i8042_read_status();
+ if (str & I8042_STR_OBF) {
+ data = i8042_read_data();
+ if (i8042_irq_being_tested &&
+ data == 0xa5 && (str & I8042_STR_AUXDATA))
+ complete(&i8042_aux_irq_delivered);
+ }
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
/*
* i8042_check_aux() applies as much paranoia as it can at detecting
@@ -601,18 +545,10 @@
static int __devinit i8042_check_aux(void)
{
+ int retval = -1;
+ int irq_registered = 0;
+ unsigned long flags;
unsigned char param;
- static int i8042_check_aux_cookie;
-
-/*
- * Check if AUX irq is available. If it isn't, then there is no point
- * in trying to detect AUX presence.
- */
-
- if (request_irq(i8042_ports[I8042_AUX_PORT_NO].irq, i8042_interrupt,
- IRQF_SHARED, "i8042", &i8042_check_aux_cookie))
- return -1;
- free_irq(i8042_ports[I8042_AUX_PORT_NO].irq, &i8042_check_aux_cookie);
/*
* Get rid of bytes in the queue.
@@ -637,9 +573,9 @@
* AUX ports, we test for this only when the LOOP command failed.
*/
- if (i8042_command(¶m, I8042_CMD_AUX_TEST)
- || (param && param != 0xfa && param != 0xff))
- return -1;
+ if (i8042_command(¶m, I8042_CMD_AUX_TEST) ||
+ (param && param != 0xfa && param != 0xff))
+ return -1;
}
/*
@@ -659,6 +595,54 @@
return -1;
/*
+ * Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
+ * used it for a PCI card or somethig else.
+ */
+
+ if (i8042_noloop) {
+/*
+ * Without LOOP command we can't test AUX IRQ delivery. Assume the port
+ * is working and hope we are right.
+ */
+ retval = 0;
+ goto out;
+ }
+
+ if (request_irq(I8042_AUX_IRQ, i8042_aux_test_irq, IRQF_SHARED,
+ "i8042", i8042_platform_device))
+ goto out;
+
+ irq_registered = 1;
+
+ if (i8042_enable_aux_port())
+ goto out;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ init_completion(&i8042_aux_irq_delivered);
+ i8042_irq_being_tested = 1;
+
+ param = 0xa5;
+ retval = __i8042_command(¶m, I8042_CMD_AUX_LOOP & 0xf0ff);
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ if (retval)
+ goto out;
+
+ if (wait_for_completion_timeout(&i8042_aux_irq_delivered,
+ msecs_to_jiffies(250)) == 0) {
+/*
+ * AUX IRQ was never delivered so we need to flush the controller to
+ * get rid of the byte we put there; otherwise keyboard may not work.
+ */
+ i8042_flush();
+ retval = -1;
+ }
+
+ out:
+
+/*
* Disable the interface.
*/
@@ -666,47 +650,25 @@
i8042_ctr &= ~I8042_CTR_AUXINT;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
- return -1;
+ retval = -1;
- return 0;
+ if (irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+
+ return retval;
}
-
-/*
- * i8042_port_register() marks the device as existing,
- * registers it, and reports to the user.
- */
-
-static int __devinit i8042_port_register(struct i8042_port *port)
+static int i8042_controller_check(void)
{
- i8042_ctr &= ~port->disable;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_WARNING "i8042.c: Can't write CTR while registering.\n");
- kfree(port->serio);
- port->serio = NULL;
- i8042_ctr |= port->disable;
- return -EIO;
+ if (i8042_flush() == I8042_BUFFER_SIZE) {
+ printk(KERN_ERR "i8042.c: No controller found.\n");
+ return -ENODEV;
}
- printk(KERN_INFO "serio: i8042 %s port at %#lx,%#lx irq %d\n",
- port->name,
- (unsigned long) I8042_DATA_REG,
- (unsigned long) I8042_COMMAND_REG,
- port->irq);
-
- serio_register_port(port->serio);
-
return 0;
}
-
-static void i8042_timer_func(unsigned long data)
-{
- i8042_interrupt(0, NULL, NULL);
-}
-
-static int i8042_ctl_test(void)
+static int i8042_controller_selftest(void)
{
unsigned char param;
@@ -715,13 +677,13 @@
if (i8042_command(¶m, I8042_CMD_CTL_TEST)) {
printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
- return -1;
+ return -ENODEV;
}
if (param != I8042_RET_CTL_TEST) {
printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
param, I8042_RET_CTL_TEST);
- return -1;
+ return -EIO;
}
return 0;
@@ -738,25 +700,12 @@
unsigned long flags;
/*
- * Test the i8042. We need to know if it thinks it's working correctly
- * before doing anything else.
- */
-
- if (i8042_flush() == I8042_BUFFER_SIZE) {
- printk(KERN_ERR "i8042.c: No controller found.\n");
- return -1;
- }
-
- if (i8042_ctl_test())
- return -1;
-
-/*
* Save the CTR for restoral on unload / reboot.
*/
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_RCTR)) {
printk(KERN_ERR "i8042.c: Can't read CTR while initializing i8042.\n");
- return -1;
+ return -EIO;
}
i8042_initial_ctr = i8042_ctr;
@@ -805,7 +754,7 @@
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Can't write CTR while initializing i8042.\n");
- return -1;
+ return -EIO;
}
return 0;
@@ -813,15 +762,12 @@
/*
- * Reset the controller.
- */
-static void i8042_controller_reset(void)
-{
-/*
- * Reset the controller if requested.
+ * Reset the controller and reset CRT to the original value set by BIOS.
*/
- i8042_ctl_test();
+static void i8042_controller_reset(void)
+{
+ i8042_flush();
/*
* Disable MUX mode if present.
@@ -831,12 +777,16 @@
i8042_set_mux_mode(0, NULL);
/*
+ * Reset the controller if requested.
+ */
+
+ i8042_controller_selftest();
+
+/*
* Restore the original control register setting.
*/
- i8042_ctr = i8042_initial_ctr;
-
- if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ if (i8042_command(&i8042_initial_ctr, I8042_CMD_CTL_WCTR))
printk(KERN_WARNING "i8042.c: Can't restore CTR.\n");
}
@@ -850,14 +800,12 @@
{
int i;
- i8042_flush();
-
/*
* Reset anything that is connected to the ports.
*/
for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].exists)
+ if (i8042_ports[i].serio)
serio_cleanup(i8042_ports[i].serio);
i8042_controller_reset();
@@ -913,8 +861,7 @@
static int i8042_suspend(struct platform_device *dev, pm_message_t state)
{
- del_timer_sync(&i8042_timer);
- i8042_controller_reset();
+ i8042_controller_cleanup();
return 0;
}
@@ -926,33 +873,39 @@
static int i8042_resume(struct platform_device *dev)
{
- int i;
+ int error;
- if (i8042_ctl_test())
- return -1;
+ error = i8042_controller_check();
+ if (error)
+ return error;
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
+
+/*
+ * Restore pre-resume CTR value and disable all ports
+ */
+
+ i8042_ctr |= I8042_CTR_AUXDIS | I8042_CTR_KBDDIS;
+ i8042_ctr &= ~(I8042_CTR_AUXINT | I8042_CTR_KBDINT);
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
- printk(KERN_ERR "i8042: Can't write CTR\n");
- return -1;
+ printk(KERN_ERR "i8042: Can't write CTR to resume\n");
+ return -EIO;
}
- if (i8042_mux_present)
+ if (i8042_mux_present) {
if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
- printk(KERN_WARNING "i8042: failed to resume active multiplexor, mouse won't work.\n");
+ printk(KERN_WARNING
+ "i8042: failed to resume active multiplexor, "
+ "mouse won't work.\n");
+ } else if (i8042_ports[I8042_AUX_PORT_NO].serio)
+ i8042_enable_aux_port();
-/*
- * Activate all ports.
- */
+ if (i8042_ports[I8042_KBD_PORT_NO].serio)
+ i8042_enable_kbd_port();
- for (i = 0; i < I8042_NUM_PORTS; i++)
- i8042_activate_port(&i8042_ports[i]);
-
-/*
- * Restart timer (for polling "stuck" data)
- */
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
-
- panic_blink = i8042_panic_blink;
+ i8042_interrupt(0, NULL, NULL);
return 0;
}
@@ -978,24 +931,24 @@
serio->id.type = i8042_direct ? SERIO_8042 : SERIO_8042_XL;
serio->write = i8042_dumbkbd ? NULL : i8042_kbd_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
- strlcpy(serio->name, "i8042 Kbd Port", sizeof(serio->name));
+ strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
port->serio = serio;
+ port->irq = I8042_KBD_IRQ;
- return i8042_port_register(port);
+ return 0;
}
-static int __devinit i8042_create_aux_port(void)
+static int __devinit i8042_create_aux_port(int idx)
{
struct serio *serio;
- struct i8042_port *port = &i8042_ports[I8042_AUX_PORT_NO];
+ int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
+ struct i8042_port *port = &i8042_ports[port_no];
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
@@ -1003,111 +956,191 @@
serio->id.type = SERIO_8042;
serio->write = i8042_aux_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
- strlcpy(serio->name, "i8042 Aux Port", sizeof(serio->name));
- strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ if (idx < 0) {
+ strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
+ strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ } else {
+ snprintf(serio->name, sizeof(serio->name), "i8042 AUX%d port", idx);
+ snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, idx + 1);
+ }
port->serio = serio;
+ port->mux = idx;
+ port->irq = I8042_AUX_IRQ;
- return i8042_port_register(port);
+ return 0;
}
-static int __devinit i8042_create_mux_port(int index)
+static void __devinit i8042_free_kbd_port(void)
{
- struct serio *serio;
- struct i8042_port *port = &i8042_ports[I8042_MUX_PORT_NO + index];
+ kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
+ i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
+}
- serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
- if (!serio)
- return -ENOMEM;
+static void __devinit i8042_free_aux_ports(void)
+{
+ int i;
- serio->id.type = SERIO_8042;
- serio->write = i8042_aux_write;
- serio->open = i8042_open;
- serio->close = i8042_close;
- serio->start = i8042_start;
- serio->stop = i8042_stop;
- serio->port_data = port;
- serio->dev.parent = &i8042_platform_device->dev;
- snprintf(serio->name, sizeof(serio->name), "i8042 Aux-%d Port", index);
- snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, index + 1);
+ for (i = I8042_AUX_PORT_NO; i < I8042_NUM_PORTS; i++) {
+ kfree(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+}
- *port = i8042_ports[I8042_AUX_PORT_NO];
- port->exists = 0;
- snprintf(port->name, sizeof(port->name), "AUX%d", index);
- port->mux = index;
- port->serio = serio;
+static void __devinit i8042_register_ports(void)
+{
+ int i;
- return i8042_port_register(port);
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
+ i8042_ports[i].serio->name,
+ (unsigned long) I8042_DATA_REG,
+ (unsigned long) I8042_COMMAND_REG,
+ i8042_ports[i].irq);
+ serio_register_port(i8042_ports[i].serio);
+ }
+ }
+}
+
+static void __devinit i8042_unregister_ports(void)
+{
+ int i;
+
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ serio_unregister_port(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+ }
+}
+
+static void i8042_free_irqs(void)
+{
+ if (i8042_aux_irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ if (i8042_kbd_irq_registered)
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+
+ i8042_aux_irq_registered = i8042_kbd_irq_registered = 0;
+}
+
+static int __devinit i8042_setup_aux(void)
+{
+ int (*aux_enable)(void);
+ int error;
+ int i;
+
+ if (i8042_check_aux())
+ return -ENODEV;
+
+ if (i8042_nomux || i8042_check_mux()) {
+ error = i8042_create_aux_port(-1);
+ if (error)
+ goto err_free_ports;
+ aux_enable = i8042_enable_aux_port;
+ } else {
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ error = i8042_create_aux_port(i);
+ if (error)
+ goto err_free_ports;
+ }
+ aux_enable = i8042_enable_mux_ports;
+ }
+
+ error = request_irq(I8042_AUX_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_ports;
+
+ if (aux_enable())
+ goto err_free_irq;
+
+ i8042_aux_irq_registered = 1;
+ return 0;
+
+ err_free_irq:
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ err_free_ports:
+ i8042_free_aux_ports();
+ return error;
+}
+
+static int __devinit i8042_setup_kbd(void)
+{
+ int error;
+
+ error = i8042_create_kbd_port();
+ if (error)
+ return error;
+
+ error = request_irq(I8042_KBD_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_port;
+
+ error = i8042_enable_kbd_port();
+ if (error)
+ goto err_free_irq;
+
+ i8042_kbd_irq_registered = 1;
+ return 0;
+
+ err_free_irq:
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+ err_free_port:
+ i8042_free_kbd_port();
+ return error;
}
static int __devinit i8042_probe(struct platform_device *dev)
{
- int i, have_ports = 0;
- int err;
+ int error;
- init_timer(&i8042_timer);
- i8042_timer.function = i8042_timer_func;
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
- if (i8042_controller_init())
- return -ENODEV;
+ error = i8042_controller_init();
+ if (error)
+ return error;
- if (!i8042_noaux && !i8042_check_aux()) {
- if (!i8042_nomux && !i8042_check_mux()) {
- for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
- err = i8042_create_mux_port(i);
- if (err)
- goto err_unregister_ports;
- }
- } else {
- err = i8042_create_aux_port();
- if (err)
- goto err_unregister_ports;
- }
- have_ports = 1;
+ if (!i8042_noaux) {
+ error = i8042_setup_aux();
+ if (error && error != -ENODEV && error != -EBUSY)
+ goto out_fail;
}
if (!i8042_nokbd) {
- err = i8042_create_kbd_port();
- if (err)
- goto err_unregister_ports;
- have_ports = 1;
+ error = i8042_setup_kbd();
+ if (error)
+ goto out_fail;
}
- if (!have_ports) {
- err = -ENODEV;
- goto err_controller_cleanup;
- }
+/*
+ * Ok, everything is ready, let's register all serio ports
+ */
+ i8042_register_ports();
- mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
return 0;
- err_unregister_ports:
- for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].serio)
- serio_unregister_port(i8042_ports[i].serio);
- err_controller_cleanup:
- i8042_controller_cleanup();
+ out_fail:
+ i8042_free_aux_ports(); /* in case KBD failed but AUX not */
+ i8042_free_irqs();
+ i8042_controller_reset();
- return err;
+ return error;
}
static int __devexit i8042_remove(struct platform_device *dev)
{
- int i;
-
- i8042_controller_cleanup();
-
- for (i = 0; i < I8042_NUM_PORTS; i++)
- if (i8042_ports[i].exists)
- serio_unregister_port(i8042_ports[i].serio);
-
- del_timer_sync(&i8042_timer);
+ i8042_unregister_ports();
+ i8042_free_irqs();
+ i8042_controller_reset();
return 0;
}
@@ -1134,8 +1167,9 @@
if (err)
return err;
- i8042_ports[I8042_AUX_PORT_NO].irq = I8042_AUX_IRQ;
- i8042_ports[I8042_KBD_PORT_NO].irq = I8042_KBD_IRQ;
+ err = i8042_controller_check();
+ if (err)
+ goto err_platform_exit;
err = platform_driver_register(&i8042_driver);
if (err)
@@ -1151,6 +1185,8 @@
if (err)
goto err_free_device;
+ panic_blink = i8042_panic_blink;
+
return 0;
err_free_device:
@@ -1167,7 +1203,6 @@
{
platform_device_unregister(i8042_platform_device);
platform_driver_unregister(&i8042_driver);
-
i8042_platform_exit();
panic_blink = NULL;
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index af526ab..b3eb7a7 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -37,15 +37,6 @@
#define I8042_CTL_TIMEOUT 10000
/*
- * When the device isn't opened and it's interrupts aren't used, we poll it at
- * regular intervals to see if any characters arrived. If yes, we can start
- * probing for any mouse / keyboard connected. This is the period of the
- * polling.
- */
-
-#define I8042_POLL_PERIOD HZ/20
-
-/*
* Status register bits.
*/
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index ed202f2..dcb16b5 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -27,15 +27,6 @@
MODULE_DESCRIPTION("PS/2 driver library");
MODULE_LICENSE("GPL");
-EXPORT_SYMBOL(ps2_init);
-EXPORT_SYMBOL(ps2_sendbyte);
-EXPORT_SYMBOL(ps2_drain);
-EXPORT_SYMBOL(ps2_command);
-EXPORT_SYMBOL(ps2_schedule_command);
-EXPORT_SYMBOL(ps2_handle_ack);
-EXPORT_SYMBOL(ps2_handle_response);
-EXPORT_SYMBOL(ps2_cmd_aborted);
-
/* Work structure to schedule execution of a command */
struct ps2work {
struct work_struct work;
@@ -71,6 +62,7 @@
return -ps2dev->nak;
}
+EXPORT_SYMBOL(ps2_sendbyte);
/*
* ps2_drain() waits for device to transmit requested number of bytes
@@ -96,15 +88,16 @@
msecs_to_jiffies(timeout));
mutex_unlock(&ps2dev->cmd_mutex);
}
+EXPORT_SYMBOL(ps2_drain);
/*
* ps2_is_keyboard_id() checks received ID byte against the list of
* known keyboard IDs.
*/
-static inline int ps2_is_keyboard_id(char id_byte)
+int ps2_is_keyboard_id(char id_byte)
{
- static char keyboard_ids[] = {
+ const static char keyboard_ids[] = {
0xab, /* Regular keyboards */
0xac, /* NCD Sun keyboard */
0x2b, /* Trust keyboard, translated */
@@ -115,6 +108,7 @@
return memchr(keyboard_ids, id_byte, sizeof(keyboard_ids)) != NULL;
}
+EXPORT_SYMBOL(ps2_is_keyboard_id);
/*
* ps2_adjust_timeout() is called after receiving 1st byte of command
@@ -139,6 +133,19 @@
case PS2_CMD_GETID:
/*
+ * Microsoft Natural Elite keyboard responds to
+ * the GET ID command as it were a mouse, with
+ * a single byte. Fail the command so atkbd will
+ * use alternative probe to detect it.
+ */
+ if (ps2dev->cmdbuf[1] == 0xaa) {
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = 0;
+ serio_continue_rx(ps2dev->serio);
+ timeout = 0;
+ }
+
+ /*
* If device behind the port is not a keyboard there
* won't be 2nd byte of ID response.
*/
@@ -237,6 +244,7 @@
mutex_unlock(&ps2dev->cmd_mutex);
return rc;
}
+EXPORT_SYMBOL(ps2_command);
/*
* ps2_execute_scheduled_command() sends a command, previously scheduled by
@@ -279,6 +287,7 @@
return 0;
}
+EXPORT_SYMBOL(ps2_schedule_command);
/*
* ps2_init() initializes ps2dev structure
@@ -290,6 +299,7 @@
init_waitqueue_head(&ps2dev->wait);
ps2dev->serio = serio;
}
+EXPORT_SYMBOL(ps2_init);
/*
* ps2_handle_ack() is supposed to be used in interrupt handler
@@ -335,6 +345,7 @@
return 1;
}
+EXPORT_SYMBOL(ps2_handle_ack);
/*
* ps2_handle_response() is supposed to be used in interrupt handler
@@ -360,6 +371,7 @@
return 1;
}
+EXPORT_SYMBOL(ps2_handle_response);
void ps2_cmd_aborted(struct ps2dev *ps2dev)
{
@@ -371,4 +383,4 @@
ps2dev->flags = 0;
}
-
+EXPORT_SYMBOL(ps2_cmd_aborted);
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index b1b14f8..9418bbe 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -108,4 +108,40 @@
To compile this driver as a module, choose M here: the
module will be called hp680_ts_input.
+config TOUCHSCREEN_PENMOUNT
+ tristate "Penmount serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Penmount serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called penmount.
+
+config TOUCHSCREEN_TOUCHRIGHT
+ tristate "Touchright serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchright serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchright.
+
+config TOUCHSCREEN_TOUCHWIN
+ tristate "Touchwin serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchwin serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchwin.
+
endif
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 5e5557c..1abb8f1 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -12,3 +12,6 @@
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index c86a2eb..ab56533 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -23,6 +23,7 @@
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
+#include <linux/ctype.h>
#define DRIVER_DESC "Elo serial touchscreen driver"
@@ -34,7 +35,19 @@
* Definitions & global arrays.
*/
-#define ELO_MAX_LENGTH 10
+#define ELO_MAX_LENGTH 10
+
+#define ELO10_PACKET_LEN 8
+#define ELO10_TOUCH 0x03
+#define ELO10_PRESSURE 0x80
+
+#define ELO10_LEAD_BYTE 'U'
+
+#define ELO10_ID_CMD 'i'
+
+#define ELO10_TOUCH_PACKET 'T'
+#define ELO10_ACK_PACKET 'A'
+#define ELI10_ID_PACKET 'I'
/*
* Per-touchscreen data.
@@ -43,51 +56,67 @@
struct elo {
struct input_dev *dev;
struct serio *serio;
+ struct mutex cmd_mutex;
+ struct completion cmd_done;
int id;
int idx;
+ unsigned char expected_packet;
unsigned char csum;
unsigned char data[ELO_MAX_LENGTH];
+ unsigned char response[ELO10_PACKET_LEN];
char phys[32];
};
-static void elo_process_data_10(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
- elo->csum += elo->data[elo->idx] = data;
-
+ elo->data[elo->idx] = data;
switch (elo->idx++) {
-
case 0:
- if (data != 'U') {
+ elo->csum = 0xaa;
+ if (data != ELO10_LEAD_BYTE) {
+ pr_debug("elo: unsynchronized data: 0x%02x\n", data);
elo->idx = 0;
- elo->csum = 0;
- }
- break;
-
- case 1:
- if (data != 'T') {
- elo->idx = 0;
- elo->csum = 0;
}
break;
case 9:
- if (elo->csum) {
+ elo->idx = 0;
+ if (data != elo->csum) {
+ pr_debug("elo: bad checksum: 0x%02x, expected 0x%02x\n",
+ data, elo->csum);
+ break;
+ }
+ if (elo->data[1] != elo->expected_packet) {
+ if (elo->data[1] != ELO10_TOUCH_PACKET)
+ pr_debug("elo: unexpected packet: 0x%02x\n",
+ elo->data[1]);
+ break;
+ }
+ if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
- input_report_abs(dev, ABS_PRESSURE, (elo->data[8] << 8) | elo->data[7]);
- input_report_key(dev, BTN_TOUCH, elo->data[8] || elo->data[7]);
+ if (elo->data[2] & ELO10_PRESSURE)
+ input_report_abs(dev, ABS_PRESSURE,
+ (elo->data[8] << 8) | elo->data[7]);
+ input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
input_sync(dev);
+ } else if (elo->data[1] == ELO10_ACK_PACKET) {
+ if (elo->data[2] == '0')
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ complete(&elo->cmd_done);
+ } else {
+ memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
+ elo->expected_packet = ELO10_ACK_PACKET;
}
- elo->idx = 0;
- elo->csum = 0;
break;
}
+ elo->csum += data;
}
-static void elo_process_data_6(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
@@ -135,7 +164,7 @@
}
}
-static void elo_process_data_3(struct elo* elo, unsigned char data, struct pt_regs *regs)
+static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
@@ -161,7 +190,7 @@
static irqreturn_t elo_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
- struct elo* elo = serio_get_drvdata(serio);
+ struct elo *elo = serio_get_drvdata(serio);
switch(elo->id) {
case 0:
@@ -181,17 +210,81 @@
return IRQ_HANDLED;
}
+static int elo_command_10(struct elo *elo, unsigned char *packet)
+{
+ int rc = -1;
+ int i;
+ unsigned char csum = 0xaa + ELO10_LEAD_BYTE;
+
+ mutex_lock(&elo->cmd_mutex);
+
+ serio_pause_rx(elo->serio);
+ elo->expected_packet = toupper(packet[0]);
+ init_completion(&elo->cmd_done);
+ serio_continue_rx(elo->serio);
+
+ if (serio_write(elo->serio, ELO10_LEAD_BYTE))
+ goto out;
+
+ for (i = 0; i < ELO10_PACKET_LEN; i++) {
+ csum += packet[i];
+ if (serio_write(elo->serio, packet[i]))
+ goto out;
+ }
+
+ if (serio_write(elo->serio, csum))
+ goto out;
+
+ wait_for_completion_timeout(&elo->cmd_done, HZ);
+
+ if (elo->expected_packet == ELO10_TOUCH_PACKET) {
+ /* We are back in reporting mode, the command was ACKed */
+ memcpy(packet, elo->response, ELO10_PACKET_LEN);
+ rc = 0;
+ }
+
+ out:
+ mutex_unlock(&elo->cmd_mutex);
+ return rc;
+}
+
+static int elo_setup_10(struct elo *elo)
+{
+ static const char *elo_types[] = { "Accu", "Dura", "Intelli", "Carroll" };
+ struct input_dev *dev = elo->dev;
+ unsigned char packet[ELO10_PACKET_LEN] = { ELO10_ID_CMD };
+
+ if (elo_command_10(elo, packet))
+ return -1;
+
+ dev->id.version = (packet[5] << 8) | packet[4];
+
+ input_set_abs_params(dev, ABS_X, 96, 4000, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 96, 4000, 0, 0);
+ if (packet[3] & ELO10_PRESSURE)
+ input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+
+ printk(KERN_INFO "elo: %sTouch touchscreen, fw: %02x.%02x, "
+ "features: %x02x, controller: 0x%02x\n",
+ elo_types[(packet[1] -'0') & 0x03],
+ packet[5], packet[4], packet[3], packet[7]);
+
+ return 0;
+}
+
/*
* elo_disconnect() is the opposite of elo_connect()
*/
static void elo_disconnect(struct serio *serio)
{
- struct elo* elo = serio_get_drvdata(serio);
+ struct elo *elo = serio_get_drvdata(serio);
+ input_get_device(elo->dev);
input_unregister_device(elo->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
+ input_put_device(elo->dev);
kfree(elo);
}
@@ -211,12 +304,15 @@
input_dev = input_allocate_device();
if (!elo || !input_dev) {
err = -ENOMEM;
- goto fail;
+ goto fail1;
}
elo->serio = serio;
elo->id = serio->id.id;
elo->dev = input_dev;
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ mutex_init(&elo->cmd_mutex);
+ init_completion(&elo->cmd_done);
snprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys);
input_dev->private = elo;
@@ -231,12 +327,17 @@
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ serio_set_drvdata(serio, elo);
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
switch (elo->id) {
case 0: /* 10-byte protocol */
- input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
- input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE, 0, 255, 0, 0);
+ if (elo_setup_10(elo))
+ goto fail3;
+
break;
case 1: /* 6-byte protocol */
@@ -253,17 +354,15 @@
break;
}
- serio_set_drvdata(serio, elo);
-
- err = serio_open(serio, drv);
+ err = input_register_device(elo->dev);
if (err)
- goto fail;
+ goto fail3;
- input_register_device(elo->dev);
return 0;
- fail: serio_set_drvdata(serio, NULL);
- input_free_device(input_dev);
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
kfree(elo);
return err;
}
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
new file mode 100644
index 0000000..f737010
--- /dev/null
+++ b/drivers/input/touchscreen/penmount.c
@@ -0,0 +1,185 @@
+/*
+ * Penmount serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on ELO driver (drivers/input/touchscreen/elo.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Penmount serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define PM_MAX_LENGTH 5
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct pm {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[PM_MAX_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t pm_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+ struct input_dev *dev = pm->dev;
+
+ pm->data[pm->idx] = data;
+
+ if (pm->data[0] & 0x80) {
+ if (PM_MAX_LENGTH == ++pm->idx) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
+ input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
+ input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
+ input_sync(dev);
+ pm->idx = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * pm_disconnect() is the opposite of pm_connect()
+ */
+
+static void pm_disconnect(struct serio *serio)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+
+ input_get_device(pm->dev);
+ input_unregister_device(pm->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(pm->dev);
+ kfree(pm);
+}
+
+/*
+ * pm_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int pm_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct pm *pm;
+ struct input_dev *input_dev;
+ int err;
+
+ pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pm || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ pm->serio = serio;
+ pm->dev = input_dev;
+ snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
+
+ input_dev->private = pm;
+ input_dev->name = "Penmount Serial TouchScreen";
+ input_dev->phys = pm->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_PENMOUNT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &serio->dev;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
+ input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
+
+ serio_set_drvdata(serio, pm);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(pm->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(pm);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id pm_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_PENMOUNT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, pm_serio_ids);
+
+static struct serio_driver pm_drv = {
+ .driver = {
+ .name = "penmountlpc",
+ },
+ .description = DRIVER_DESC,
+ .id_table = pm_serio_ids,
+ .interrupt = pm_interrupt,
+ .connect = pm_connect,
+ .disconnect = pm_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init pm_init(void)
+{
+ serio_register_driver(&pm_drv);
+ return 0;
+}
+
+static void __exit pm_exit(void)
+{
+ serio_unregister_driver(&pm_drv);
+}
+
+module_init(pm_init);
+module_exit(pm_exit);
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
new file mode 100644
index 0000000..1c89fa5
--- /dev/null
+++ b/drivers/input/touchscreen/touchright.c
@@ -0,0 +1,196 @@
+/*
+ * Touchright serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchright serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TR_FORMAT_TOUCH_BIT 0x01
+#define TR_FORMAT_STATUS_BYTE 0x40
+#define TR_FORMAT_STATUS_MASK ~TR_FORMAT_TOUCH_BIT
+
+#define TR_LENGTH 5
+
+#define TR_MIN_XC 0
+#define TR_MAX_XC 0x1ff
+#define TR_MIN_YC 0
+#define TR_MAX_YC 0x1ff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tr {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[TR_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tr_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+ struct input_dev *dev = tr->dev;
+
+ tr->data[tr->idx] = data;
+
+ if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) {
+ if (++tr->idx == TR_LENGTH) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X,
+ (tr->data[1] << 5) | (tr->data[2] >> 1));
+ input_report_abs(dev, ABS_Y,
+ (tr->data[3] << 5) | (tr->data[4] >> 1));
+ input_report_key(dev, BTN_TOUCH,
+ tr->data[0] & TR_FORMAT_TOUCH_BIT);
+ input_sync(dev);
+ tr->idx = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tr_disconnect() is the opposite of tr_connect()
+ */
+
+static void tr_disconnect(struct serio *serio)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+
+ input_get_device(tr->dev);
+ input_unregister_device(tr->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tr->dev);
+ kfree(tr);
+}
+
+/*
+ * tr_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchright protocol and registers it as
+ * an input device.
+ */
+
+static int tr_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tr *tr;
+ struct input_dev *input_dev;
+ int err;
+
+ tr = kzalloc(sizeof(struct tr), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tr || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tr->serio = serio;
+ tr->dev = input_dev;
+ snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
+
+ input_dev->private = tr;
+ input_dev->name = "Touchright Serial TouchScreen";
+ input_dev->phys = tr->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHRIGHT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(tr->dev, ABS_X, TR_MIN_XC, TR_MAX_XC, 0, 0);
+ input_set_abs_params(tr->dev, ABS_Y, TR_MIN_YC, TR_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tr);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tr->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tr);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tr_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHRIGHT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tr_serio_ids);
+
+static struct serio_driver tr_drv = {
+ .driver = {
+ .name = "touchright",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tr_serio_ids,
+ .interrupt = tr_interrupt,
+ .connect = tr_connect,
+ .disconnect = tr_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tr_init(void)
+{
+ serio_register_driver(&tr_drv);
+ return 0;
+}
+
+static void __exit tr_exit(void)
+{
+ serio_unregister_driver(&tr_drv);
+}
+
+module_init(tr_init);
+module_exit(tr_exit);
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
new file mode 100644
index 0000000..a7b4c75
--- /dev/null
+++ b/drivers/input/touchscreen/touchwin.c
@@ -0,0 +1,203 @@
+/*
+ * Touchwindow serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+/*
+ * 2005/02/19 Rick Koch:
+ * The Touchwindow I used is made by Edmark Corp. and
+ * constantly outputs a stream of 0's unless it is touched.
+ * It then outputs 3 bytes: X, Y, and a copy of Y.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchwindow serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TW_LENGTH 3
+
+#define TW_MIN_XC 0
+#define TW_MAX_XC 0xff
+#define TW_MIN_YC 0
+#define TW_MAX_YC 0xff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tw {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ int touched;
+ unsigned char data[TW_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tw_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+ struct input_dev *dev = tw->dev;
+
+ if (data) { /* touch */
+ tw->touched = 1;
+ tw->data[tw->idx++] = data;
+ /* verify length and that the two Y's are the same */
+ if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
+ input_regs(dev, regs);
+ input_report_abs(dev, ABS_X, tw->data[0]);
+ input_report_abs(dev, ABS_Y, tw->data[1]);
+ input_report_key(dev, BTN_TOUCH, 1);
+ input_sync(dev);
+ tw->idx = 0;
+ }
+ } else if (tw->touched) { /* untouch */
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_sync(dev);
+ tw->idx = 0;
+ tw->touched = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tw_disconnect() is the opposite of tw_connect()
+ */
+
+static void tw_disconnect(struct serio *serio)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+
+ input_get_device(tw->dev);
+ input_unregister_device(tw->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tw->dev);
+ kfree(tw);
+}
+
+/*
+ * tw_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchwin protocol and registers it as
+ * an input device.
+ */
+
+static int tw_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tw *tw;
+ struct input_dev *input_dev;
+ int err;
+
+ tw = kzalloc(sizeof(struct tw), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tw || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tw->serio = serio;
+ tw->dev = input_dev;
+ snprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys);
+
+ input_dev->private = tw;
+ input_dev->name = "Touchwindow Serial TouchScreen";
+ input_dev->phys = tw->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHWIN;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(tw->dev, ABS_X, TW_MIN_XC, TW_MAX_XC, 0, 0);
+ input_set_abs_params(tw->dev, ABS_Y, TW_MIN_YC, TW_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tw);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tw->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tw);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tw_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHWIN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tw_serio_ids);
+
+static struct serio_driver tw_drv = {
+ .driver = {
+ .name = "touchwin",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tw_serio_ids,
+ .interrupt = tw_interrupt,
+ .connect = tw_connect,
+ .disconnect = tw_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tw_init(void)
+{
+ serio_register_driver(&tw_drv);
+ return 0;
+}
+
+static void __exit tw_exit(void)
+{
+ serio_unregister_driver(&tw_drv);
+}
+
+module_init(tw_init);
+module_exit(tw_exit);
diff --git a/drivers/input/tsdev.c b/drivers/input/tsdev.c
index 00e3929..a730c46 100644
--- a/drivers/input/tsdev.c
+++ b/drivers/input/tsdev.c
@@ -135,8 +135,6 @@
#define TS_GET_CAL _IOR(IOC_H3600_TS_MAGIC, 10, struct ts_calibration)
#define TS_SET_CAL _IOW(IOC_H3600_TS_MAGIC, 11, struct ts_calibration)
-static struct input_handler tsdev_handler;
-
static struct tsdev *tsdev_table[TSDEV_MINORS/2];
static int tsdev_fasync(int fd, struct file *file, int on)
@@ -263,7 +261,7 @@
return retval;
}
-static struct file_operations tsdev_fops = {
+static const struct file_operations tsdev_fops = {
.owner = THIS_MODULE,
.open = tsdev_open,
.release = tsdev_release,
@@ -370,7 +368,7 @@
static struct input_handle *tsdev_connect(struct input_handler *handler,
struct input_dev *dev,
- struct input_device_id *id)
+ const struct input_device_id *id)
{
struct tsdev *tsdev;
struct class_device *cdev;
@@ -443,7 +441,7 @@
tsdev_free(tsdev);
}
-static struct input_device_id tsdev_ids[] = {
+static const struct input_device_id tsdev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
@@ -481,9 +479,7 @@
static int __init tsdev_init(void)
{
- input_register_handler(&tsdev_handler);
- printk(KERN_INFO "ts: Compaq touchscreen protocol output\n");
- return 0;
+ return input_register_handler(&tsdev_handler);
}
static void __exit tsdev_exit(void)
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 669f763..11844bb 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -1298,7 +1298,7 @@
static struct tty_driver *capinc_tty_driver;
-static struct tty_operations capinc_ops = {
+static const struct tty_operations capinc_ops = {
.open = capinc_tty_open,
.close = capinc_tty_close,
.write = capinc_tty_write,
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index bd2e426..596f3ae 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -134,7 +134,7 @@
static int if_write(struct tty_struct *tty,
const unsigned char *buf, int count);
-static struct tty_operations if_ops = {
+static const struct tty_operations if_ops = {
.open = if_open,
.close = if_close,
.ioctl = if_ioctl,
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index 9ae3a7f..9ad840e 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -83,5 +83,6 @@
return;
gig_dbg(DEBUG_INIT, "setting up sysfs");
- class_device_create_file(cs->class, &class_device_attr_cidmode);
+ if (class_device_create_file(cs->class, &class_device_attr_cidmode))
+ dev_err(cs->dev, "could not create sysfs attribute\n");
}
diff --git a/drivers/isdn/hisax/hisax.h b/drivers/isdn/hisax/hisax.h
index 75920aa..2f9d511 100644
--- a/drivers/isdn/hisax/hisax.h
+++ b/drivers/isdn/hisax/hisax.h
@@ -1316,7 +1316,18 @@
void iecpy(u_char * dest, u_char * iestart, int ieoffset);
#endif /* __KERNEL__ */
-#define HZDELAY(jiffs) {int tout = jiffs; while (tout--) udelay(1000000/HZ);}
+/*
+ * Busywait delay for `jiffs' jiffies
+ */
+#define HZDELAY(jiffs) do { \
+ int tout = jiffs; \
+ \
+ while (tout--) { \
+ int loops = USEC_PER_SEC / HZ; \
+ while (loops--) \
+ udelay(1); \
+ } \
+ } while (0)
int ll_run(struct IsdnCardState *cs, int addfeatures);
int CallcNew(void);
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 9ab66e8..2b91bb0 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1860,7 +1860,7 @@
send_sig(SIGIO, dev->profd, 1);
}
-static struct tty_operations modem_ops = {
+static const struct tty_operations modem_ops = {
.open = isdn_tty_open,
.close = isdn_tty_close,
.write = isdn_tty_write,
diff --git a/drivers/media/dvb/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb/dvb-core/dvb_ringbuffer.c
index c972fe0..9878183 100644
--- a/drivers/media/dvb/dvb-core/dvb_ringbuffer.c
+++ b/drivers/media/dvb/dvb-core/dvb_ringbuffer.c
@@ -26,7 +26,6 @@
-#define __KERNEL_SYSCALLS__
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 19c2b85..c1bf1fb 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -3,5 +3,6 @@
#
obj- := misc.o # Dummy rule to force built-in.o to be made
-obj-$(CONFIG_IBM_ASM) += ibmasm/
+obj-$(CONFIG_IBM_ASM) += ibmasm/
obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs/
+obj-$(CONFIG_LKDTM) += lkdtm.o
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
new file mode 100644
index 0000000..e689ee94
--- /dev/null
+++ b/drivers/misc/lkdtm.c
@@ -0,0 +1,342 @@
+/*
+ * Kprobe module for testing crash dumps
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2006
+ *
+ * Author: Ankita Garg <ankita@in.ibm.com>
+ *
+ * This module induces system failures at predefined crashpoints to
+ * evaluate the reliability of crash dumps obtained using different dumping
+ * solutions.
+ *
+ * It is adapted from the Linux Kernel Dump Test Tool by
+ * Fernando Luis Vazquez Cao <http://lkdtt.sourceforge.net>
+ *
+ * Usage : insmod lkdtm.ko [recur_count={>0}] cpoint_name=<> cpoint_type=<>
+ * [cpoint_count={>0}]
+ *
+ * recur_count : Recursion level for the stack overflow test. Default is 10.
+ *
+ * cpoint_name : Crash point where the kernel is to be crashed. It can be
+ * one of INT_HARDWARE_ENTRY, INT_HW_IRQ_EN, INT_TASKLET_ENTRY,
+ * FS_DEVRW, MEM_SWAPOUT, TIMERADD, SCSI_DISPATCH_CMD,
+ * IDE_CORE_CP
+ *
+ * cpoint_type : Indicates the action to be taken on hitting the crash point.
+ * It can be one of PANIC, BUG, EXCEPTION, LOOP, OVERFLOW
+ *
+ * cpoint_count : Indicates the number of times the crash point is to be hit
+ * to trigger an action. The default is 10.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+#include <linux/kallsyms.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <scsi/scsi_cmnd.h>
+
+#ifdef CONFIG_IDE
+#include <linux/ide.h>
+#endif
+
+#define NUM_CPOINTS 8
+#define NUM_CPOINT_TYPES 5
+#define DEFAULT_COUNT 10
+#define REC_NUM_DEFAULT 10
+
+enum cname {
+ INVALID,
+ INT_HARDWARE_ENTRY,
+ INT_HW_IRQ_EN,
+ INT_TASKLET_ENTRY,
+ FS_DEVRW,
+ MEM_SWAPOUT,
+ TIMERADD,
+ SCSI_DISPATCH_CMD,
+ IDE_CORE_CP
+};
+
+enum ctype {
+ NONE,
+ PANIC,
+ BUG,
+ EXCEPTION,
+ LOOP,
+ OVERFLOW
+};
+
+static char* cp_name[] = {
+ "INT_HARDWARE_ENTRY",
+ "INT_HW_IRQ_EN",
+ "INT_TASKLET_ENTRY",
+ "FS_DEVRW",
+ "MEM_SWAPOUT",
+ "TIMERADD",
+ "SCSI_DISPATCH_CMD",
+ "IDE_CORE_CP"
+};
+
+static char* cp_type[] = {
+ "PANIC",
+ "BUG",
+ "EXCEPTION",
+ "LOOP",
+ "OVERFLOW"
+};
+
+static struct jprobe lkdtm;
+
+static int lkdtm_parse_commandline(void);
+static void lkdtm_handler(void);
+
+static char* cpoint_name = INVALID;
+static char* cpoint_type = NONE;
+static int cpoint_count = DEFAULT_COUNT;
+static int recur_count = REC_NUM_DEFAULT;
+
+static enum cname cpoint = INVALID;
+static enum ctype cptype = NONE;
+static int count = DEFAULT_COUNT;
+
+module_param(recur_count, int, 0644);
+MODULE_PARM_DESC(recur_count, "Recurcion level for the stack overflow test,\
+ default is 10");
+module_param(cpoint_name, charp, 0644);
+MODULE_PARM_DESC(cpoint_name, "Crash Point, where kernel is to be crashed");
+module_param(cpoint_type, charp, 06444);
+MODULE_PARM_DESC(cpoint_type, "Crash Point Type, action to be taken on\
+ hitting the crash point");
+module_param(cpoint_count, int, 06444);
+MODULE_PARM_DESC(cpoint_count, "Crash Point Count, number of times the \
+ crash point is to be hit to trigger action");
+
+unsigned int jp_do_irq(unsigned int irq, struct pt_regs *regs)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+
+irqreturn_t jp_handle_irq_event(unsigned int irq, struct pt_regs *regs,
+ struct irqaction *action)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+
+void jp_tasklet_action(struct softirq_action *a)
+{
+ lkdtm_handler();
+ jprobe_return();
+}
+
+void jp_ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
+{
+ lkdtm_handler();
+ jprobe_return();
+}
+
+struct scan_control;
+
+unsigned long jp_shrink_page_list(struct list_head *page_list,
+ struct scan_control *sc)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+
+int jp_hrtimer_start(struct hrtimer *timer, ktime_t tim,
+ const enum hrtimer_mode mode)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+
+int jp_scsi_dispatch_cmd(struct scsi_cmnd *cmd)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+
+#ifdef CONFIG_IDE
+int jp_generic_ide_ioctl(ide_drive_t *drive, struct file *file,
+ struct block_device *bdev, unsigned int cmd,
+ unsigned long arg)
+{
+ lkdtm_handler();
+ jprobe_return();
+ return 0;
+}
+#endif
+
+static int lkdtm_parse_commandline(void)
+{
+ int i;
+
+ if (cpoint_name == INVALID || cpoint_type == NONE ||
+ cpoint_count < 1 || recur_count < 1)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_CPOINTS; ++i) {
+ if (!strcmp(cpoint_name, cp_name[i])) {
+ cpoint = i + 1;
+ break;
+ }
+ }
+
+ for (i = 0; i < NUM_CPOINT_TYPES; ++i) {
+ if (!strcmp(cpoint_type, cp_type[i])) {
+ cptype = i + 1;
+ break;
+ }
+ }
+
+ if (cpoint == INVALID || cptype == NONE)
+ return -EINVAL;
+
+ count = cpoint_count;
+
+ return 0;
+}
+
+static int recursive_loop(int a)
+{
+ char buf[1024];
+
+ memset(buf,0xFF,1024);
+ recur_count--;
+ if (!recur_count)
+ return 0;
+ else
+ return recursive_loop(a);
+}
+
+void lkdtm_handler(void)
+{
+ printk(KERN_INFO "lkdtm : Crash point %s of type %s hit\n",
+ cpoint_name, cpoint_type);
+ --count;
+
+ if (count == 0) {
+ switch (cptype) {
+ case NONE:
+ break;
+ case PANIC:
+ printk(KERN_INFO "lkdtm : PANIC\n");
+ panic("dumptest");
+ break;
+ case BUG:
+ printk(KERN_INFO "lkdtm : BUG\n");
+ BUG();
+ break;
+ case EXCEPTION:
+ printk(KERN_INFO "lkdtm : EXCEPTION\n");
+ *((int *) 0) = 0;
+ break;
+ case LOOP:
+ printk(KERN_INFO "lkdtm : LOOP\n");
+ for (;;);
+ break;
+ case OVERFLOW:
+ printk(KERN_INFO "lkdtm : OVERFLOW\n");
+ (void) recursive_loop(0);
+ break;
+ default:
+ break;
+ }
+ count = cpoint_count;
+ }
+}
+
+int lkdtm_module_init(void)
+{
+ int ret;
+
+ if (lkdtm_parse_commandline() == -EINVAL) {
+ printk(KERN_INFO "lkdtm : Invalid command\n");
+ return -EINVAL;
+ }
+
+ switch (cpoint) {
+ case INT_HARDWARE_ENTRY:
+ lkdtm.kp.symbol_name = "__do_IRQ";
+ lkdtm.entry = (kprobe_opcode_t*) jp_do_irq;
+ break;
+ case INT_HW_IRQ_EN:
+ lkdtm.kp.symbol_name = "handle_IRQ_event";
+ lkdtm.entry = (kprobe_opcode_t*) jp_handle_irq_event;
+ break;
+ case INT_TASKLET_ENTRY:
+ lkdtm.kp.symbol_name = "tasklet_action";
+ lkdtm.entry = (kprobe_opcode_t*) jp_tasklet_action;
+ break;
+ case FS_DEVRW:
+ lkdtm.kp.symbol_name = "ll_rw_block";
+ lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;
+ break;
+ case MEM_SWAPOUT:
+ lkdtm.kp.symbol_name = "shrink_page_list";
+ lkdtm.entry = (kprobe_opcode_t*) jp_shrink_page_list;
+ break;
+ case TIMERADD:
+ lkdtm.kp.symbol_name = "hrtimer_start";
+ lkdtm.entry = (kprobe_opcode_t*) jp_hrtimer_start;
+ break;
+ case SCSI_DISPATCH_CMD:
+ lkdtm.kp.symbol_name = "scsi_dispatch_cmd";
+ lkdtm.entry = (kprobe_opcode_t*) jp_scsi_dispatch_cmd;
+ break;
+ case IDE_CORE_CP:
+#ifdef CONFIG_IDE
+ lkdtm.kp.symbol_name = "generic_ide_ioctl";
+ lkdtm.entry = (kprobe_opcode_t*) jp_generic_ide_ioctl;
+#else
+ printk(KERN_INFO "lkdtm : Crash point not available\n");
+#endif
+ break;
+ default:
+ printk(KERN_INFO "lkdtm : Invalid Crash Point\n");
+ break;
+ }
+
+ if ((ret = register_jprobe(&lkdtm)) < 0) {
+ printk(KERN_INFO "lkdtm : Couldn't register jprobe\n");
+ return ret;
+ }
+
+ printk(KERN_INFO "lkdtm : Crash point %s of type %s registered\n",
+ cpoint_name, cpoint_type);
+ return 0;
+}
+
+void lkdtm_module_exit(void)
+{
+ unregister_jprobe(&lkdtm);
+ printk(KERN_INFO "lkdtm : Crash point unregistered\n");
+}
+
+module_init(lkdtm_module_init);
+module_exit(lkdtm_module_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index bc0face..151a2e1 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -697,7 +697,7 @@
return ret;
if (on) {
- ret = f_setown(file, current->pid, 0);
+ ret = __f_setown(file, task_pid(current), PIDTYPE_PID, 0);
if (ret)
return ret;
tun->flags |= TUN_FASYNC;
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
index 9793780..eddfa87 100644
--- a/drivers/net/wireless/ipw2100.c
+++ b/drivers/net/wireless/ipw2100.c
@@ -150,7 +150,6 @@
#include <linux/skbuff.h>
#include <asm/uaccess.h>
#include <asm/io.h>
-#define __KERNEL_SYSCALLS__
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index bf00fa2..8dac2ba 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -684,7 +684,7 @@
int ret;
snprintf(lcd_text_default, sizeof(lcd_text_default),
- "Linux %s", system_utsname.release);
+ "Linux %s", init_utsname()->release);
/* Work around the buggy PDC of KittyHawk-machines */
switch (CPU_HVERSION) {
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index fad5a33..4a9f025 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -84,8 +84,7 @@
static void deferred_poweroff(void *dummy)
{
- extern int cad_pid; /* from kernel/sys.c */
- if (kill_proc(cad_pid, SIGINT, 1)) {
+ if (kill_cad_pid(SIGINT, 1)) {
/* just in case killing init process failed */
machine_power_off();
}
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index c5d7476..933cd86 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -298,7 +298,7 @@
{
struct pcmcia_socket *s = to_socket(container_of(kobj, struct class_device, kobj));
cisdump_t *cis;
- ssize_t ret = count;
+ int error;
if (off)
return -EINVAL;
@@ -316,25 +316,22 @@
cis->Length = count + 1;
memcpy(cis->Data, buf, count);
- if (pcmcia_replace_cis(s, cis))
- ret = -EIO;
-
+ error = pcmcia_replace_cis(s, cis);
kfree(cis);
+ if (error)
+ return -EIO;
- if (!ret) {
- mutex_lock(&s->skt_mutex);
- if ((s->callback) && (s->state & SOCKET_PRESENT) &&
- !(s->state & SOCKET_CARDBUS)) {
- if (try_module_get(s->callback->owner)) {
- s->callback->requery(s);
- module_put(s->callback->owner);
- }
+ mutex_lock(&s->skt_mutex);
+ if ((s->callback) && (s->state & SOCKET_PRESENT) &&
+ !(s->state & SOCKET_CARDBUS)) {
+ if (try_module_get(s->callback->owner)) {
+ s->callback->requery(s);
+ module_put(s->callback->owner);
}
- mutex_unlock(&s->skt_mutex);
}
+ mutex_unlock(&s->skt_mutex);
-
- return (ret);
+ return count;
}
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 6f8370e..625637b 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -116,7 +116,7 @@
class_interface_unregister(&rtc_sysfs_interface);
}
-subsys_init(rtc_sysfs_init);
+subsys_initcall(rtc_sysfs_init);
module_exit(rtc_sysfs_exit);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 2fa566f..d7de175d 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1103,7 +1103,7 @@
}
}
-static struct tty_operations tty3215_ops = {
+static const struct tty_operations tty3215_ops = {
.open = tty3215_open,
.close = tty3215_close,
.write = tty3215_write,
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index b4557fa..78f8bda 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -27,7 +27,7 @@
struct fs3270 {
struct raw3270_view view;
- pid_t fs_pid; /* Pid of controlling program. */
+ struct pid *fs_pid; /* Pid of controlling program. */
int read_command; /* ccw command to use for reads. */
int write_command; /* ccw command to use for writes. */
int attention; /* Got attention. */
@@ -102,7 +102,7 @@
fp = (struct fs3270 *) rq->view;
if (rq->rc != 0 || rq->rescnt != 0) {
if (fp->fs_pid)
- kill_proc(fp->fs_pid, SIGHUP, 1);
+ kill_pid(fp->fs_pid, SIGHUP, 1);
}
fp->rdbuf_size = 0;
raw3270_request_reset(rq);
@@ -173,7 +173,7 @@
*/
if (rq->rc != 0 || rq->rescnt == 0) {
if (fp->fs_pid)
- kill_proc(fp->fs_pid, SIGHUP, 1);
+ kill_pid(fp->fs_pid, SIGHUP, 1);
fp->rdbuf_size = 0;
} else
fp->rdbuf_size = fp->rdbuf->size - rq->rescnt;
@@ -442,7 +442,7 @@
return PTR_ERR(fp);
init_waitqueue_head(&fp->wait);
- fp->fs_pid = current->pid;
+ fp->fs_pid = get_pid(task_pid(current));
rc = raw3270_add_view(&fp->view, &fs3270_fn, minor);
if (rc) {
fs3270_free_view(&fp->view);
@@ -480,7 +480,8 @@
fp = filp->private_data;
filp->private_data = NULL;
if (fp) {
- fp->fs_pid = 0;
+ put_pid(fp->fs_pid);
+ fp->fs_pid = NULL;
raw3270_reset(&fp->view);
raw3270_put_view(&fp->view);
raw3270_del_view(&fp->view);
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index f6cf902..6f43e04d 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -711,7 +711,7 @@
.receiver_fn = sclp_tty_receiver
};
-static struct tty_operations sclp_ops = {
+static const struct tty_operations sclp_ops = {
.open = sclp_tty_open,
.close = sclp_tty_close,
.write = sclp_tty_write,
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 54fba6f..723bf41 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -655,7 +655,7 @@
return 0;
}
-static struct tty_operations sclp_vt220_ops = {
+static const struct tty_operations sclp_vt220_ops = {
.open = sclp_vt220_open,
.close = sclp_vt220_close,
.write = sclp_vt220_write,
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 06e2eee..4717c36 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -1737,7 +1737,7 @@
return kbd_ioctl(tp->kbd, file, cmd, arg);
}
-static struct tty_operations tty3270_ops = {
+static const struct tty_operations tty3270_ops = {
.open = tty3270_open,
.close = tty3270_close,
.write = tty3270_write,
diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
index 479364d..e088b5e 100644
--- a/drivers/s390/s390mach.c
+++ b/drivers/s390/s390mach.c
@@ -208,7 +208,7 @@
*/
__ctl_clear_bit(14, 24); /* Disable WARNING MCH */
if (xchg(&mchchk_wng_posted, 1) == 0)
- kill_proc(1, SIGPWR, 1);
+ kill_cad_pid(SIGPWR, 1);
}
#endif
diff --git a/drivers/sbus/char/aurora.c b/drivers/sbus/char/aurora.c
index 4fdb2c9..a305d40 100644
--- a/drivers/sbus/char/aurora.c
+++ b/drivers/sbus/char/aurora.c
@@ -2187,7 +2187,7 @@
#endif
}
-static struct tty_operations aurora_ops = {
+static const struct tty_operations aurora_ops = {
.open = aurora_open,
.close = aurora_close,
.write = aurora_write,
diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index 1cc706e..d27e4f6 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -4,9 +4,6 @@
* Copyright (C) 2001 David S. Miller (davem@redhat.com)
*/
-#define __KERNEL_SYSCALLS__
-static int errno;
-
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/sched.h>
@@ -200,7 +197,7 @@
printk(KERN_CRIT "kenvctrld: Shutting down the system now.\n");
shutting_down = 1;
- if (execve("/sbin/shutdown", argv, envp) < 0)
+ if (kernel_execve("/sbin/shutdown", argv, envp) < 0)
printk(KERN_CRIT "envctrl: shutdown execution failed\n");
}
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 063e676..728a133 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -19,9 +19,6 @@
* Daniele Bellucci <bellucda@tiscali.it>
*/
-#define __KERNEL_SYSCALLS__
-static int errno;
-
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/kthread.h>
@@ -976,13 +973,15 @@
"HOME=/", "TERM=linux", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
char *argv[] = {
"/sbin/shutdown", "-h", "now", NULL };
+ int ret;
if (inprog != 0)
return;
inprog = 1;
printk(KERN_CRIT "kenvctrld: WARNING: Shutting down the system now.\n");
- if (0 > execve("/sbin/shutdown", argv, envp)) {
+ ret = kernel_execve("/sbin/shutdown", argv, envp);
+ if (ret < 0) {
printk(KERN_CRIT "kenvctrld: WARNING: system shutdown failed!\n");
inprog = 0; /* unlikely to succeed, but we could try again */
}
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index ae41064..1b53afb 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -933,8 +933,8 @@
ae = (ATTRIBUTE_ENTRY *) ((uint8_t *) rh + size);
ae->ad.bits.AttrType = be16_to_cpu(OS_NAME_VERSION);
sprintf(ae->un.OsNameVersion, "%s %s %s",
- system_utsname.sysname, system_utsname.release,
- system_utsname.version);
+ init_utsname()->sysname, init_utsname()->release,
+ init_utsname()->version);
len = strlen(ae->un.OsNameVersion);
len += (len & 3) ? (4 - (len & 3)) : 4;
ae->ad.bits.AttrLen = be16_to_cpu(FOURBYTES + len);
@@ -1052,7 +1052,7 @@
size);
ae->ad.bits.AttrType = be16_to_cpu(HOST_NAME);
sprintf(ae->un.HostName, "%s",
- system_utsname.nodename);
+ init_utsname()->nodename);
len = strlen(ae->un.HostName);
len += (len & 3) ? (4 - (len & 3)) : 4;
ae->ad.bits.AttrLen =
@@ -1140,7 +1140,7 @@
ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, FDMI_DID);
if (ndlp) {
- if (system_utsname.nodename[0] != '\0') {
+ if (init_utsname()->nodename[0] != '\0') {
lpfc_fdmi_cmd(phba, ndlp, SLI_MGMT_DHBA);
} else {
mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index 993a702..bac853c 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -1378,7 +1378,7 @@
#endif /* CONFIG_PM_LEGACY */
-static struct tty_operations rs_ops = {
+static const struct tty_operations rs_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c
index e80e70e..1b299e8 100644
--- a/drivers/serial/68360serial.c
+++ b/drivers/serial/68360serial.c
@@ -2424,7 +2424,7 @@
*/
static int baud_idx;
-static struct tty_operations rs_360_ops = {
+static const struct tty_operations rs_360_ops = {
.owner = THIS_MODULE,
.open = rs_360_open,
.close = rs_360_close,
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index cabd048..9851d9e 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -4825,7 +4825,7 @@
/* rs_init inits the driver at boot (using the module_init chain) */
-static struct tty_operations rs_ops = {
+static const struct tty_operations rs_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index 832abd3..00d7859 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -1666,7 +1666,7 @@
printk(mcfrs_drivername);
}
-static struct tty_operations mcfrs_ops = {
+static const struct tty_operations mcfrs_ops = {
.open = mcfrs_open,
.close = mcfrs_close,
.write = mcfrs_write,
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 5f7ba1ad..de5e893 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2111,7 +2111,7 @@
}
}
-static struct tty_operations uart_ops = {
+static const struct tty_operations uart_ops = {
.open = uart_open,
.close = uart_close,
.write = uart_write,
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index 5e8a276..622881f 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -1701,7 +1701,7 @@
spin_unlock_irqrestore(&zs_lock, flags);
}
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
.open = rs_open,
.close = rs_close,
.write = rs_write,
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index ca90326..7128829 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1120,7 +1120,7 @@
* TTY driver structures.
*/
-static struct tty_operations acm_ops = {
+static const struct tty_operations acm_ops = {
.open = acm_tty_open,
.close = acm_tty_close,
.write = acm_tty_write,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index a94c63b..3f509be 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -65,7 +65,7 @@
struct async {
struct list_head asynclist;
struct dev_state *ps;
- pid_t pid;
+ struct pid *pid;
uid_t uid, euid;
unsigned int signr;
unsigned int ifnum;
@@ -225,6 +225,7 @@
static void free_async(struct async *as)
{
+ put_pid(as->pid);
kfree(as->urb->transfer_buffer);
kfree(as->urb->setup_packet);
usb_free_urb(as->urb);
@@ -317,7 +318,7 @@
sinfo.si_errno = as->urb->status;
sinfo.si_code = SI_ASYNCIO;
sinfo.si_addr = as->userurb;
- kill_proc_info_as_uid(as->signr, &sinfo, as->pid, as->uid,
+ kill_pid_info_as_uid(as->signr, &sinfo, as->pid, as->uid,
as->euid, as->secid);
}
snoop(&urb->dev->dev, "urb complete\n");
@@ -573,7 +574,7 @@
INIT_LIST_HEAD(&ps->async_completed);
init_waitqueue_head(&ps->wait);
ps->discsignr = 0;
- ps->disc_pid = current->pid;
+ ps->disc_pid = get_pid(task_pid(current));
ps->disc_uid = current->uid;
ps->disc_euid = current->euid;
ps->disccontext = NULL;
@@ -611,6 +612,7 @@
usb_autosuspend_device(dev, 1);
usb_unlock_device(dev);
usb_put_dev(dev);
+ put_pid(ps->disc_pid);
kfree(ps);
return 0;
}
@@ -1063,7 +1065,7 @@
as->userbuffer = NULL;
as->signr = uurb->signr;
as->ifnum = ifnum;
- as->pid = current->pid;
+ as->pid = get_pid(task_pid(current));
as->uid = current->uid;
as->euid = current->euid;
security_task_getsecid(current, &as->secid);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 37f9f5e..e658089 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -318,8 +318,8 @@
// id 3 == vendor description
} else if (id == 3) {
- snprintf (buf, sizeof buf, "%s %s %s", system_utsname.sysname,
- system_utsname.release, hcd->driver->description);
+ snprintf (buf, sizeof buf, "%s %s %s", init_utsname()->sysname,
+ init_utsname()->release, hcd->driver->description);
// unsupported IDs --> "protocol stall"
} else
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 7c77c2d..b5d6a79 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -699,7 +699,7 @@
sinfo.si_errno = EPIPE;
sinfo.si_code = SI_ASYNCIO;
sinfo.si_addr = ds->disccontext;
- kill_proc_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid, ds->secid);
+ kill_pid_info_as_uid(ds->discsignr, &sinfo, ds->disc_pid, ds->disc_uid, ds->disc_euid, ds->secid);
}
}
}
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index f69df13..13322e3 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -139,7 +139,7 @@
struct list_head async_completed;
wait_queue_head_t wait; /* wake up if a request completed */
unsigned int discsignr;
- pid_t disc_pid;
+ struct pid *disc_pid;
uid_t disc_uid, disc_euid;
void __user *disccontext;
unsigned long ifclaimed;
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 366dc0a..1c17d26 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -2260,7 +2260,7 @@
return -ENODEV;
}
snprintf (manufacturer, sizeof manufacturer, "%s %s/%s",
- system_utsname.sysname, system_utsname.release,
+ init_utsname()->sysname, init_utsname()->release,
gadget->name);
/* If there's an RNDIS configuration, that's what Windows wants to
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index c83d3b6..8b975d1 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -4001,7 +4001,7 @@
usb_gadget_set_selfpowered(gadget);
snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
- system_utsname.sysname, system_utsname.release,
+ init_utsname()->sysname, init_utsname()->release,
gadget->name);
/* On a real device, serial[] would be loaded from permanent
diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c
index b68cecd..83601d4 100644
--- a/drivers/usb/gadget/gmidi.c
+++ b/drivers/usb/gadget/gmidi.c
@@ -1189,7 +1189,7 @@
strlcpy(manufacturer, iManufacturer, sizeof(manufacturer));
} else {
snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s",
- system_utsname.sysname, system_utsname.release,
+ init_utsname()->sysname, init_utsname()->release,
gadget->name);
}
if (iProduct) {
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index b893e31..208e55a 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -271,7 +271,7 @@
/* tty driver struct */
-static struct tty_operations gs_tty_ops = {
+static const struct tty_operations gs_tty_ops = {
.open = gs_open,
.close = gs_close,
.write = gs_write,
@@ -1434,7 +1434,7 @@
return -ENOMEM;
snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s",
- system_utsname.sysname, system_utsname.release,
+ init_utsname()->sysname, init_utsname()->release,
gadget->name);
memset(dev, 0, sizeof(struct gs_dev));
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index b7018ee..0f809dd 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -1242,7 +1242,7 @@
EP_OUT_NAME, EP_IN_NAME);
snprintf (manufacturer, sizeof manufacturer, "%s %s with %s",
- system_utsname.sysname, system_utsname.release,
+ init_utsname()->sysname, init_utsname()->release,
gadget->name);
return 0;
diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig
index a102a58..21cd226 100644
--- a/drivers/usb/input/Kconfig
+++ b/drivers/usb/input/Kconfig
@@ -60,16 +60,17 @@
If unsure, say N.
config HID_PID
- bool "PID Devices (Microsoft Sidewinder Force Feedback 2)"
+ bool "PID device support"
depends on HID_FF
help
- Say Y here if you have a PID-compliant joystick and wish to enable force
- feedback for it. The Microsoft Sidewinder Force Feedback 2 is one such
- device.
+ Say Y here if you have a PID-compliant device and wish to enable force
+ feedback for it. Microsoft Sidewinder Force Feedback 2 is one of such
+ devices.
config LOGITECH_FF
bool "Logitech WingMan *3D support"
depends on HID_FF
+ select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have one of these devices:
- Logitech WingMan Cordless RumblePad
@@ -81,12 +82,21 @@
config THRUSTMASTER_FF
bool "ThrustMaster FireStorm Dual Power 2 support (EXPERIMENTAL)"
depends on HID_FF && EXPERIMENTAL
+ select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have a THRUSTMASTER FireStore Dual Power 2,
and want to enable force feedback support for it.
Note: if you say N here, this device will still be supported, but without
force feedback.
+config ZEROPLUS_FF
+ bool "Zeroplus based game controller support"
+ depends on HID_FF
+ select INPUT_FF_MEMLESS if USB_HID
+ help
+ Say Y here if you have a Zeroplus based game controller and want to
+ enable force feedback for it.
+
config USB_HIDDEV
bool "/dev/hiddev raw HID device support"
depends on USB_HID
diff --git a/drivers/usb/input/Makefile b/drivers/usb/input/Makefile
index 48551be..295f459 100644
--- a/drivers/usb/input/Makefile
+++ b/drivers/usb/input/Makefile
@@ -15,7 +15,7 @@
usbhid-objs += hid-input.o
endif
ifeq ($(CONFIG_HID_PID),y)
- usbhid-objs += pid.o
+ usbhid-objs += hid-pidff.o
endif
ifeq ($(CONFIG_LOGITECH_FF),y)
usbhid-objs += hid-lgff.o
@@ -23,6 +23,9 @@
ifeq ($(CONFIG_THRUSTMASTER_FF),y)
usbhid-objs += hid-tmff.o
endif
+ifeq ($(CONFIG_ZEROPLUS_FF),y)
+ usbhid-objs += hid-zpff.o
+endif
ifeq ($(CONFIG_HID_FF),y)
usbhid-objs += hid-ff.o
endif
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 81b1ea0..e0fd116 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -543,8 +543,6 @@
{
unsigned i,j;
- hid_ff_exit(device);
-
for (i = 0; i < HID_REPORT_TYPES; i++) {
struct hid_report_enum *report_enum = device->report_enum + i;
@@ -1109,7 +1107,7 @@
/*
* Find a report field with a specified HID usage.
*/
-
+#if 0
struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
{
struct hid_report *report;
@@ -1121,6 +1119,7 @@
return report->field[i];
return NULL;
}
+#endif /* 0 */
static int hid_submit_out(struct hid_device *hid)
{
diff --git a/drivers/usb/input/hid-ff.c b/drivers/usb/input/hid-ff.c
index d5c91ee..a8fc46c 100644
--- a/drivers/usb/input/hid-ff.c
+++ b/drivers/usb/input/hid-ff.c
@@ -44,45 +44,38 @@
int (*init)(struct hid_device*);
};
+/*
+ * We try pidff when no other driver is found because PID is the
+ * standards compliant way of implementing force feedback in HID.
+ * pidff_init() will quickly abort if the device doesn't appear to
+ * be a PID device
+ */
static struct hid_ff_initializer inits[] = {
#ifdef CONFIG_LOGITECH_FF
- {0x46d, 0xc211, hid_lgff_init}, // Logitech Cordless rumble pad
- {0x46d, 0xc283, hid_lgff_init}, // Logitech Wingman Force 3d
- {0x46d, 0xc295, hid_lgff_init}, // Logitech MOMO force wheel
- {0x46d, 0xc219, hid_lgff_init}, // Logitech Cordless rumble pad 2
-#endif
-#ifdef CONFIG_HID_PID
- {0x45e, 0x001b, hid_pid_init},
+ { 0x46d, 0xc211, hid_lgff_init }, /* Logitech Cordless rumble pad */
+ { 0x46d, 0xc283, hid_lgff_init }, /* Logitech Wingman Force 3d */
+ { 0x46d, 0xc295, hid_lgff_init }, /* Logitech MOMO force wheel */
+ { 0x46d, 0xc219, hid_lgff_init }, /* Logitech Cordless rumble pad 2 */
#endif
#ifdef CONFIG_THRUSTMASTER_FF
- {0x44f, 0xb304, hid_tmff_init},
+ { 0x44f, 0xb304, hid_tmff_init },
#endif
- {0, 0, NULL} /* Terminating entry */
+#ifdef CONFIG_ZEROPLUS_FF
+ { 0xc12, 0x0005, hid_zpff_init },
+ { 0xc12, 0x0030, hid_zpff_init },
+#endif
+ { 0, 0, hid_pidff_init} /* Matches anything */
};
-static struct hid_ff_initializer *hid_get_ff_init(__u16 idVendor,
- __u16 idProduct)
-{
- struct hid_ff_initializer *init;
- for (init = inits;
- init->idVendor
- && !(init->idVendor == idVendor
- && init->idProduct == idProduct);
- init++);
-
- return init->idVendor? init : NULL;
-}
-
int hid_ff_init(struct hid_device* hid)
{
struct hid_ff_initializer *init;
+ int vendor = le16_to_cpu(hid->dev->descriptor.idVendor);
+ int product = le16_to_cpu(hid->dev->descriptor.idProduct);
- init = hid_get_ff_init(le16_to_cpu(hid->dev->descriptor.idVendor),
- le16_to_cpu(hid->dev->descriptor.idProduct));
+ for (init = inits; init->idVendor; init++)
+ if (init->idVendor == vendor && init->idProduct == product)
+ break;
- if (!init) {
- dbg("hid_ff_init could not find initializer");
- return -ENOSYS;
- }
return init->init(hid);
}
diff --git a/drivers/usb/input/hid-input.c b/drivers/usb/input/hid-input.c
index 7208839..4c62afb 100644
--- a/drivers/usb/input/hid-input.c
+++ b/drivers/usb/input/hid-input.c
@@ -65,11 +65,9 @@
#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
-#define map_ff(c) do { usage->code = c; usage->type = EV_FF; bit = input->ffbit; max = FF_MAX; } while (0)
#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
-#define map_ff_effect(c) do { set_bit(c, input->ffbit); } while (0)
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
@@ -525,23 +523,7 @@
case HID_UP_PID:
- set_bit(EV_FF, input->evbit);
switch(usage->hid & HID_USAGE) {
- case 0x26: map_ff_effect(FF_CONSTANT); goto ignore;
- case 0x27: map_ff_effect(FF_RAMP); goto ignore;
- case 0x28: map_ff_effect(FF_CUSTOM); goto ignore;
- case 0x30: map_ff_effect(FF_SQUARE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x31: map_ff_effect(FF_SINE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x32: map_ff_effect(FF_TRIANGLE); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x33: map_ff_effect(FF_SAW_UP); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x34: map_ff_effect(FF_SAW_DOWN); map_ff_effect(FF_PERIODIC); goto ignore;
- case 0x40: map_ff_effect(FF_SPRING); goto ignore;
- case 0x41: map_ff_effect(FF_DAMPER); goto ignore;
- case 0x42: map_ff_effect(FF_INERTIA); goto ignore;
- case 0x43: map_ff_effect(FF_FRICTION); goto ignore;
- case 0x7e: map_ff(FF_GAIN); break;
- case 0x83: input->ff_effects_max = field->value[0]; goto ignore;
- case 0x98: map_ff(FF_AUTOCENTER); break;
case 0xa4: map_key_clear(BTN_DEAD); break;
default: goto ignore;
}
@@ -698,8 +680,7 @@
}
if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
- input->ff_effects_max = value;
- dbg("Maximum Effects - %d",input->ff_effects_max);
+ dbg("Maximum Effects - %d",value);
return;
}
@@ -748,7 +729,7 @@
int offset;
if (type == EV_FF)
- return hid_ff_event(hid, dev, type, code, value);
+ return input_ff_event(dev, type, code, value);
if (type != EV_LED)
return -1;
diff --git a/drivers/usb/input/hid-lgff.c b/drivers/usb/input/hid-lgff.c
index f07d443..93da222 100644
--- a/drivers/usb/input/hid-lgff.c
+++ b/drivers/usb/input/hid-lgff.c
@@ -1,12 +1,11 @@
/*
- * $$
- *
* Force feedback support for hid-compliant for some of the devices from
* Logitech, namely:
* - WingMan Cordless RumblePad
* - WingMan Force 3D
*
* Copyright (c) 2002-2004 Johann Deneux
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
*/
/*
@@ -29,495 +28,117 @@
*/
#include <linux/input.h>
-#include <linux/sched.h>
-
-//#define DEBUG
#include <linux/usb.h>
-
-#include <linux/circ_buf.h>
-
#include "hid.h"
-#include "fixp-arith.h"
-
-
-/* Periodicity of the update */
-#define PERIOD (HZ/10)
-
-#define RUN_AT(t) (jiffies + (t))
-
-/* Effect status */
-#define EFFECT_STARTED 0 /* Effect is going to play after some time
- (ff_replay.delay) */
-#define EFFECT_PLAYING 1 /* Effect is being played */
-#define EFFECT_USED 2
-
-// For lgff_device::flags
-#define DEVICE_CLOSING 0 /* The driver is being unitialised */
-
-/* Check that the current process can access an effect */
-#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
- || effect.owner == current->pid)
-
-#define LGFF_CHECK_OWNERSHIP(i, l) \
- (i>=0 && i<LGFF_EFFECTS \
- && test_bit(EFFECT_USED, l->effects[i].flags) \
- && CHECK_OWNERSHIP(l->effects[i]))
-
-#define LGFF_EFFECTS 8
struct device_type {
u16 idVendor;
u16 idProduct;
- signed short *ff;
+ const signed short *ff;
};
-struct lgff_effect {
- pid_t owner;
-
- struct ff_effect effect;
-
- unsigned long flags[1];
- unsigned int count; /* Number of times left to play */
- unsigned long started_at; /* When the effect started to play */
-};
-
-struct lgff_device {
- struct hid_device* hid;
-
- struct hid_report* constant;
- struct hid_report* rumble;
- struct hid_report* condition;
-
- struct lgff_effect effects[LGFF_EFFECTS];
- spinlock_t lock; /* device-level lock. Having locks on
- a per-effect basis could be nice, but
- isn't really necessary */
-
- unsigned long flags[1]; /* Contains various information about the
- state of the driver for this device */
-
- struct timer_list timer;
-};
-
-/* Callbacks */
-static void hid_lgff_exit(struct hid_device* hid);
-static int hid_lgff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-static int hid_lgff_flush(struct input_dev *input, struct file *file);
-static int hid_lgff_upload_effect(struct input_dev *input,
- struct ff_effect *effect);
-static int hid_lgff_erase(struct input_dev *input, int id);
-
-/* Local functions */
-static void hid_lgff_input_init(struct hid_device* hid);
-static void hid_lgff_timer(unsigned long timer_data);
-static struct hid_report* hid_lgff_duplicate_report(struct hid_report*);
-static void hid_lgff_delete_report(struct hid_report*);
-
-static signed short ff_rumble[] = {
+static const signed short ff_rumble[] = {
FF_RUMBLE,
-1
};
-static signed short ff_joystick[] = {
+static const signed short ff_joystick[] = {
FF_CONSTANT,
-1
};
-static struct device_type devices[] = {
- {0x046d, 0xc211, ff_rumble},
- {0x046d, 0xc219, ff_rumble},
- {0x046d, 0xc283, ff_joystick},
- {0x0000, 0x0000, ff_joystick}
+static const struct device_type devices[] = {
+ { 0x046d, 0xc211, ff_rumble },
+ { 0x046d, 0xc219, ff_rumble },
+ { 0x046d, 0xc283, ff_joystick },
+ { 0x0000, 0x0000, ff_joystick }
};
+static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ int x, y;
+ unsigned int left, right;
+
+#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+ x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
+ y = effect->u.ramp.end_level + 0x7f;
+ CLAMP(x);
+ CLAMP(y);
+ report->field[0]->value[0] = 0x51;
+ report->field[0]->value[1] = 0x08;
+ report->field[0]->value[2] = x;
+ report->field[0]->value[3] = y;
+ dbg("(x, y)=(%04x, %04x)", x, y);
+ hid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+
+ case FF_RUMBLE:
+ right = effect->u.rumble.strong_magnitude;
+ left = effect->u.rumble.weak_magnitude;
+ right = right * 0xff / 0xffff;
+ left = left * 0xff / 0xffff;
+ CLAMP(left);
+ CLAMP(right);
+ report->field[0]->value[0] = 0x42;
+ report->field[0]->value[1] = 0x00;
+ report->field[0]->value[2] = left;
+ report->field[0]->value[3] = right;
+ dbg("(left, right)=(%04x, %04x)", left, right);
+ hid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+ }
+ return 0;
+}
+
int hid_lgff_init(struct hid_device* hid)
{
- struct lgff_device *private;
- struct hid_report* report;
- struct hid_field* field;
+ struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ struct hid_report *report;
+ struct hid_field *field;
+ int error;
+ int i, j;
/* Find the report to use */
- if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
+ if (list_empty(report_list)) {
err("No output report found");
return -1;
}
+
/* Check that the report looks ok */
- report = (struct hid_report*)hid->report_enum[HID_OUTPUT_REPORT].report_list.next;
+ report = list_entry(report_list->next, struct hid_report, list);
if (!report) {
err("NULL output report");
return -1;
}
+
field = report->field[0];
if (!field) {
err("NULL field");
return -1;
}
- private = kzalloc(sizeof(struct lgff_device), GFP_KERNEL);
- if (!private)
- return -1;
- hid->ff_private = private;
-
- /* Input init */
- hid_lgff_input_init(hid);
-
-
- private->constant = hid_lgff_duplicate_report(report);
- if (!private->constant) {
- kfree(private);
- return -1;
- }
- private->constant->field[0]->value[0] = 0x51;
- private->constant->field[0]->value[1] = 0x08;
- private->constant->field[0]->value[2] = 0x7f;
- private->constant->field[0]->value[3] = 0x7f;
-
- private->rumble = hid_lgff_duplicate_report(report);
- if (!private->rumble) {
- hid_lgff_delete_report(private->constant);
- kfree(private);
- return -1;
- }
- private->rumble->field[0]->value[0] = 0x42;
-
-
- private->condition = hid_lgff_duplicate_report(report);
- if (!private->condition) {
- hid_lgff_delete_report(private->rumble);
- hid_lgff_delete_report(private->constant);
- kfree(private);
- return -1;
+ for (i = 0; i < ARRAY_SIZE(devices); i++) {
+ if (dev->id.vendor == devices[i].idVendor &&
+ dev->id.product == devices[i].idProduct) {
+ for (j = 0; devices[i].ff[j] >= 0; j++)
+ set_bit(devices[i].ff[j], dev->ffbit);
+ break;
+ }
}
- private->hid = hid;
-
- spin_lock_init(&private->lock);
- init_timer(&private->timer);
- private->timer.data = (unsigned long)private;
- private->timer.function = hid_lgff_timer;
-
- /* Event and exit callbacks */
- hid->ff_exit = hid_lgff_exit;
- hid->ff_event = hid_lgff_event;
-
- /* Start the update task */
- private->timer.expires = RUN_AT(PERIOD);
- add_timer(&private->timer); /*TODO: only run the timer when at least
- one effect is playing */
+ error = input_ff_create_memless(dev, NULL, hid_lgff_play);
+ if (error)
+ return error;
printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
return 0;
}
-
-static struct hid_report* hid_lgff_duplicate_report(struct hid_report* report)
-{
- struct hid_report* ret;
-
- ret = kmalloc(sizeof(struct lgff_device), GFP_KERNEL);
- if (!ret)
- return NULL;
- *ret = *report;
-
- ret->field[0] = kmalloc(sizeof(struct hid_field), GFP_KERNEL);
- if (!ret->field[0]) {
- kfree(ret);
- return NULL;
- }
- *ret->field[0] = *report->field[0];
-
- ret->field[0]->value = kzalloc(sizeof(s32[8]), GFP_KERNEL);
- if (!ret->field[0]->value) {
- kfree(ret->field[0]);
- kfree(ret);
- return NULL;
- }
-
- return ret;
-}
-
-static void hid_lgff_delete_report(struct hid_report* report)
-{
- if (report) {
- kfree(report->field[0]->value);
- kfree(report->field[0]);
- kfree(report);
- }
-}
-
-static void hid_lgff_input_init(struct hid_device* hid)
-{
- struct device_type* dev = devices;
- signed short* ff;
- u16 idVendor = le16_to_cpu(hid->dev->descriptor.idVendor);
- u16 idProduct = le16_to_cpu(hid->dev->descriptor.idProduct);
- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct input_dev *input_dev = hidinput->input;
-
- while (dev->idVendor && (idVendor != dev->idVendor || idProduct != dev->idProduct))
- dev++;
-
- for (ff = dev->ff; *ff >= 0; ff++)
- set_bit(*ff, input_dev->ffbit);
-
- input_dev->upload_effect = hid_lgff_upload_effect;
- input_dev->flush = hid_lgff_flush;
-
- set_bit(EV_FF, input_dev->evbit);
- input_dev->ff_effects_max = LGFF_EFFECTS;
-}
-
-static void hid_lgff_exit(struct hid_device* hid)
-{
- struct lgff_device *lgff = hid->ff_private;
-
- set_bit(DEVICE_CLOSING, lgff->flags);
- del_timer_sync(&lgff->timer);
-
- hid_lgff_delete_report(lgff->condition);
- hid_lgff_delete_report(lgff->rumble);
- hid_lgff_delete_report(lgff->constant);
-
- kfree(lgff);
-}
-
-static int hid_lgff_event(struct hid_device *hid, struct input_dev* input,
- unsigned int type, unsigned int code, int value)
-{
- struct lgff_device *lgff = hid->ff_private;
- struct lgff_effect *effect = lgff->effects + code;
- unsigned long flags;
-
- if (type != EV_FF) return -EINVAL;
- if (!LGFF_CHECK_OWNERSHIP(code, lgff)) return -EACCES;
- if (value < 0) return -EINVAL;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- if (value > 0) {
- if (test_bit(EFFECT_STARTED, effect->flags)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EBUSY;
- }
- if (test_bit(EFFECT_PLAYING, effect->flags)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EBUSY;
- }
-
- effect->count = value;
-
- if (effect->effect.replay.delay) {
- set_bit(EFFECT_STARTED, effect->flags);
- } else {
- set_bit(EFFECT_PLAYING, effect->flags);
- }
- effect->started_at = jiffies;
- }
- else { /* value == 0 */
- clear_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
-
- spin_unlock_irqrestore(&lgff->lock, flags);
-
- return 0;
-
-}
-
-/* Erase all effects this process owns */
-static int hid_lgff_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct lgff_device *lgff = hid->ff_private;
- int i;
-
- for (i=0; i<dev->ff_effects_max; ++i) {
-
- /*NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
- if ( current->pid == lgff->effects[i].owner
- && test_bit(EFFECT_USED, lgff->effects[i].flags)) {
-
- if (hid_lgff_erase(dev, i))
- warn("erase effect %d failed", i);
- }
-
- }
-
- return 0;
-}
-
-static int hid_lgff_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct lgff_device *lgff = hid->ff_private;
- unsigned long flags;
-
- if (!LGFF_CHECK_OWNERSHIP(id, lgff)) return -EACCES;
-
- spin_lock_irqsave(&lgff->lock, flags);
- lgff->effects[id].flags[0] = 0;
- spin_unlock_irqrestore(&lgff->lock, flags);
-
- return 0;
-}
-
-static int hid_lgff_upload_effect(struct input_dev* input,
- struct ff_effect* effect)
-{
- struct hid_device *hid = input->private;
- struct lgff_device *lgff = hid->ff_private;
- struct lgff_effect new;
- int id;
- unsigned long flags;
-
- dbg("ioctl rumble");
-
- if (!test_bit(effect->type, input->ffbit)) return -EINVAL;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- if (effect->id == -1) {
- int i;
-
- for (i=0; i<LGFF_EFFECTS && test_bit(EFFECT_USED, lgff->effects[i].flags); ++i);
- if (i >= LGFF_EFFECTS) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -ENOSPC;
- }
-
- effect->id = i;
- lgff->effects[i].owner = current->pid;
- lgff->effects[i].flags[0] = 0;
- set_bit(EFFECT_USED, lgff->effects[i].flags);
- }
- else if (!LGFF_CHECK_OWNERSHIP(effect->id, lgff)) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -EACCES;
- }
-
- id = effect->id;
- new = lgff->effects[id];
-
- new.effect = *effect;
-
- if (test_bit(EFFECT_STARTED, lgff->effects[id].flags)
- || test_bit(EFFECT_STARTED, lgff->effects[id].flags)) {
-
- /* Changing replay parameters is not allowed (for the time
- being) */
- if (new.effect.replay.delay != lgff->effects[id].effect.replay.delay
- || new.effect.replay.length != lgff->effects[id].effect.replay.length) {
- spin_unlock_irqrestore(&lgff->lock, flags);
- return -ENOSYS;
- }
-
- lgff->effects[id] = new;
-
- } else {
- lgff->effects[id] = new;
- }
-
- spin_unlock_irqrestore(&lgff->lock, flags);
- return 0;
-}
-
-static void hid_lgff_timer(unsigned long timer_data)
-{
- struct lgff_device *lgff = (struct lgff_device*)timer_data;
- struct hid_device *hid = lgff->hid;
- unsigned long flags;
- int x = 0x7f, y = 0x7f; // Coordinates of constant effects
- unsigned int left = 0, right = 0; // Rumbling
- int i;
-
- spin_lock_irqsave(&lgff->lock, flags);
-
- for (i=0; i<LGFF_EFFECTS; ++i) {
- struct lgff_effect* effect = lgff->effects +i;
-
- if (test_bit(EFFECT_PLAYING, effect->flags)) {
-
- switch (effect->effect.type) {
- case FF_CONSTANT: {
- //TODO: handle envelopes
- int degrees = effect->effect.direction * 360 >> 16;
- x += fixp_mult(fixp_sin(degrees),
- fixp_new16(effect->effect.u.constant.level));
- y += fixp_mult(-fixp_cos(degrees),
- fixp_new16(effect->effect.u.constant.level));
- } break;
- case FF_RUMBLE:
- right += effect->effect.u.rumble.strong_magnitude;
- left += effect->effect.u.rumble.weak_magnitude;
- break;
- };
-
- /* One run of the effect is finished playing */
- if (time_after(jiffies,
- effect->started_at
- + effect->effect.replay.delay*HZ/1000
- + effect->effect.replay.length*HZ/1000)) {
- dbg("Finished playing once %d", i);
- if (--effect->count <= 0) {
- dbg("Stopped %d", i);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
- else {
- dbg("Start again %d", i);
- if (effect->effect.replay.length != 0) {
- clear_bit(EFFECT_PLAYING, effect->flags);
- set_bit(EFFECT_STARTED, effect->flags);
- }
- effect->started_at = jiffies;
- }
- }
-
- } else if (test_bit(EFFECT_STARTED, lgff->effects[i].flags)) {
- /* Check if we should start playing the effect */
- if (time_after(jiffies,
- lgff->effects[i].started_at
- + lgff->effects[i].effect.replay.delay*HZ/1000)) {
- dbg("Now playing %d", i);
- clear_bit(EFFECT_STARTED, lgff->effects[i].flags);
- set_bit(EFFECT_PLAYING, lgff->effects[i].flags);
- }
- }
- }
-
-#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
-
- // Clamp values
- CLAMP(x);
- CLAMP(y);
- CLAMP(left);
- CLAMP(right);
-
-#undef CLAMP
-
- if (x != lgff->constant->field[0]->value[2]
- || y != lgff->constant->field[0]->value[3]) {
- lgff->constant->field[0]->value[2] = x;
- lgff->constant->field[0]->value[3] = y;
- dbg("(x,y)=(%04x, %04x)", x, y);
- hid_submit_report(hid, lgff->constant, USB_DIR_OUT);
- }
-
- if (left != lgff->rumble->field[0]->value[2]
- || right != lgff->rumble->field[0]->value[3]) {
- lgff->rumble->field[0]->value[2] = left;
- lgff->rumble->field[0]->value[3] = right;
- dbg("(left,right)=(%04x, %04x)", left, right);
- hid_submit_report(hid, lgff->rumble, USB_DIR_OUT);
- }
-
- if (!test_bit(DEVICE_CLOSING, lgff->flags)) {
- lgff->timer.expires = RUN_AT(PERIOD);
- add_timer(&lgff->timer);
- }
-
- spin_unlock_irqrestore(&lgff->lock, flags);
-}
diff --git a/drivers/usb/input/hid-pidff.c b/drivers/usb/input/hid-pidff.c
new file mode 100644
index 0000000..5420c13
--- /dev/null
+++ b/drivers/usb/input/hid-pidff.c
@@ -0,0 +1,1330 @@
+/*
+ * Force feedback driver for USB HID PID compliant devices
+ *
+ * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("hid-pidff: " format "\n" , ## arg)
+
+#include <linux/sched.h>
+#include <linux/input.h>
+#include <linux/usb.h>
+
+#include "hid.h"
+
+#define PID_EFFECTS_MAX 64
+
+/* Report usage table used to put reports into an array */
+
+#define PID_SET_EFFECT 0
+#define PID_EFFECT_OPERATION 1
+#define PID_DEVICE_GAIN 2
+#define PID_POOL 3
+#define PID_BLOCK_LOAD 4
+#define PID_BLOCK_FREE 5
+#define PID_DEVICE_CONTROL 6
+#define PID_CREATE_NEW_EFFECT 7
+
+#define PID_REQUIRED_REPORTS 7
+
+#define PID_SET_ENVELOPE 8
+#define PID_SET_CONDITION 9
+#define PID_SET_PERIODIC 10
+#define PID_SET_CONSTANT 11
+#define PID_SET_RAMP 12
+static const u8 pidff_reports[] = {
+ 0x21, 0x77, 0x7d, 0x7f, 0x89, 0x90, 0x96, 0xab,
+ 0x5a, 0x5f, 0x6e, 0x73, 0x74
+};
+
+/* device_control is really 0x95, but 0x96 specified as it is the usage of
+the only field in that report */
+
+/* Value usage tables used to put fields and values into arrays */
+
+#define PID_EFFECT_BLOCK_INDEX 0
+
+#define PID_DURATION 1
+#define PID_GAIN 2
+#define PID_TRIGGER_BUTTON 3
+#define PID_TRIGGER_REPEAT_INT 4
+#define PID_DIRECTION_ENABLE 5
+#define PID_START_DELAY 6
+static const u8 pidff_set_effect[] = {
+ 0x22, 0x50, 0x52, 0x53, 0x54, 0x56, 0xa7
+};
+
+#define PID_ATTACK_LEVEL 1
+#define PID_ATTACK_TIME 2
+#define PID_FADE_LEVEL 3
+#define PID_FADE_TIME 4
+static const u8 pidff_set_envelope[] = { 0x22, 0x5b, 0x5c, 0x5d, 0x5e };
+
+#define PID_PARAM_BLOCK_OFFSET 1
+#define PID_CP_OFFSET 2
+#define PID_POS_COEFFICIENT 3
+#define PID_NEG_COEFFICIENT 4
+#define PID_POS_SATURATION 5
+#define PID_NEG_SATURATION 6
+#define PID_DEAD_BAND 7
+static const u8 pidff_set_condition[] = {
+ 0x22, 0x23, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65
+};
+
+#define PID_MAGNITUDE 1
+#define PID_OFFSET 2
+#define PID_PHASE 3
+#define PID_PERIOD 4
+static const u8 pidff_set_periodic[] = { 0x22, 0x70, 0x6f, 0x71, 0x72 };
+static const u8 pidff_set_constant[] = { 0x22, 0x70 };
+
+#define PID_RAMP_START 1
+#define PID_RAMP_END 2
+static const u8 pidff_set_ramp[] = { 0x22, 0x75, 0x76 };
+
+#define PID_RAM_POOL_AVAILABLE 1
+static const u8 pidff_block_load[] = { 0x22, 0xac };
+
+#define PID_LOOP_COUNT 1
+static const u8 pidff_effect_operation[] = { 0x22, 0x7c };
+
+static const u8 pidff_block_free[] = { 0x22 };
+
+#define PID_DEVICE_GAIN_FIELD 0
+static const u8 pidff_device_gain[] = { 0x7e };
+
+#define PID_RAM_POOL_SIZE 0
+#define PID_SIMULTANEOUS_MAX 1
+#define PID_DEVICE_MANAGED_POOL 2
+static const u8 pidff_pool[] = { 0x80, 0x83, 0xa9 };
+
+/* Special field key tables used to put special field keys into arrays */
+
+#define PID_ENABLE_ACTUATORS 0
+#define PID_RESET 1
+static const u8 pidff_device_control[] = { 0x97, 0x9a };
+
+#define PID_CONSTANT 0
+#define PID_RAMP 1
+#define PID_SQUARE 2
+#define PID_SINE 3
+#define PID_TRIANGLE 4
+#define PID_SAW_UP 5
+#define PID_SAW_DOWN 6
+#define PID_SPRING 7
+#define PID_DAMPER 8
+#define PID_INERTIA 9
+#define PID_FRICTION 10
+static const u8 pidff_effect_types[] = {
+ 0x26, 0x27, 0x30, 0x31, 0x32, 0x33, 0x34,
+ 0x40, 0x41, 0x42, 0x43
+};
+
+#define PID_BLOCK_LOAD_SUCCESS 0
+#define PID_BLOCK_LOAD_FULL 1
+static const u8 pidff_block_load_status[] = { 0x8c, 0x8d };
+
+#define PID_EFFECT_START 0
+#define PID_EFFECT_STOP 1
+static const u8 pidff_effect_operation_status[] = { 0x79, 0x7b };
+
+struct pidff_usage {
+ struct hid_field *field;
+ s32 *value;
+};
+
+struct pidff_device {
+ struct hid_device *hid;
+
+ struct hid_report *reports[sizeof(pidff_reports)];
+
+ struct pidff_usage set_effect[sizeof(pidff_set_effect)];
+ struct pidff_usage set_envelope[sizeof(pidff_set_envelope)];
+ struct pidff_usage set_condition[sizeof(pidff_set_condition)];
+ struct pidff_usage set_periodic[sizeof(pidff_set_periodic)];
+ struct pidff_usage set_constant[sizeof(pidff_set_constant)];
+ struct pidff_usage set_ramp[sizeof(pidff_set_ramp)];
+
+ struct pidff_usage device_gain[sizeof(pidff_device_gain)];
+ struct pidff_usage block_load[sizeof(pidff_block_load)];
+ struct pidff_usage pool[sizeof(pidff_pool)];
+ struct pidff_usage effect_operation[sizeof(pidff_effect_operation)];
+ struct pidff_usage block_free[sizeof(pidff_block_free)];
+
+ /* Special field is a field that is not composed of
+ usage<->value pairs that pidff_usage values are */
+
+ /* Special field in create_new_effect */
+ struct hid_field *create_new_effect_type;
+
+ /* Special fields in set_effect */
+ struct hid_field *set_effect_type;
+ struct hid_field *effect_direction;
+
+ /* Special field in device_control */
+ struct hid_field *device_control;
+
+ /* Special field in block_load */
+ struct hid_field *block_load_status;
+
+ /* Special field in effect_operation */
+ struct hid_field *effect_operation_status;
+
+ int control_id[sizeof(pidff_device_control)];
+ int type_id[sizeof(pidff_effect_types)];
+ int status_id[sizeof(pidff_block_load_status)];
+ int operation_id[sizeof(pidff_effect_operation_status)];
+
+ int pid_id[PID_EFFECTS_MAX];
+};
+
+/*
+ * Scale an unsigned value with range 0..max for the given field
+ */
+static int pidff_rescale(int i, int max, struct hid_field *field)
+{
+ return i * (field->logical_maximum - field->logical_minimum) / max +
+ field->logical_minimum;
+}
+
+/*
+ * Scale a signed value in range -0x8000..0x7fff for the given field
+ */
+static int pidff_rescale_signed(int i, struct hid_field *field)
+{
+ return i == 0 ? 0 : i >
+ 0 ? i * field->logical_maximum / 0x7fff : i *
+ field->logical_minimum / -0x8000;
+}
+
+static void pidff_set(struct pidff_usage *usage, u16 value)
+{
+ usage->value[0] = pidff_rescale(value, 0xffff, usage->field);
+ debug("calculated from %d to %d", value, usage->value[0]);
+}
+
+static void pidff_set_signed(struct pidff_usage *usage, s16 value)
+{
+ if (usage->field->logical_minimum < 0)
+ usage->value[0] = pidff_rescale_signed(value, usage->field);
+ else {
+ if (value < 0)
+ usage->value[0] =
+ pidff_rescale(-value, 0x8000, usage->field);
+ else
+ usage->value[0] =
+ pidff_rescale(value, 0x7fff, usage->field);
+ }
+ debug("calculated from %d to %d", value, usage->value[0]);
+}
+
+/*
+ * Send envelope report to the device
+ */
+static void pidff_set_envelope_report(struct pidff_device *pidff,
+ struct ff_envelope *envelope)
+{
+ pidff->set_envelope[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ pidff->set_envelope[PID_ATTACK_LEVEL].value[0] =
+ pidff_rescale(envelope->attack_level >
+ 0x7fff ? 0x7fff : envelope->attack_level, 0x7fff,
+ pidff->set_envelope[PID_ATTACK_LEVEL].field);
+ pidff->set_envelope[PID_FADE_LEVEL].value[0] =
+ pidff_rescale(envelope->fade_level >
+ 0x7fff ? 0x7fff : envelope->fade_level, 0x7fff,
+ pidff->set_envelope[PID_FADE_LEVEL].field);
+
+ pidff->set_envelope[PID_ATTACK_TIME].value[0] = envelope->attack_length;
+ pidff->set_envelope[PID_FADE_TIME].value[0] = envelope->fade_length;
+
+ debug("attack %u => %d", envelope->attack_level,
+ pidff->set_envelope[PID_ATTACK_LEVEL].value[0]);
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_ENVELOPE],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the new envelope differs from old one
+ */
+static int pidff_needs_set_envelope(struct ff_envelope *envelope,
+ struct ff_envelope *old)
+{
+ return envelope->attack_level != old->attack_level ||
+ envelope->fade_level != old->fade_level ||
+ envelope->attack_length != old->attack_length ||
+ envelope->fade_length != old->fade_length;
+}
+
+/*
+ * Send constant force report to the device
+ */
+static void pidff_set_constant_force_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_constant[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_constant[PID_MAGNITUDE],
+ effect->u.constant.level);
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONSTANT],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the constant parameters have changed between effects
+ */
+static int pidff_needs_set_constant(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->u.constant.level != old->u.constant.level;
+}
+
+/*
+ * Send set effect report to the device
+ */
+static void pidff_set_effect_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff->set_effect_type->value[0] =
+ pidff->create_new_effect_type->value[0];
+ pidff->set_effect[PID_DURATION].value[0] = effect->replay.length;
+ pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = effect->trigger.button;
+ pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] =
+ effect->trigger.interval;
+ pidff->set_effect[PID_GAIN].value[0] =
+ pidff->set_effect[PID_GAIN].field->logical_maximum;
+ pidff->set_effect[PID_DIRECTION_ENABLE].value[0] = 1;
+ pidff->effect_direction->value[0] =
+ pidff_rescale(effect->direction, 0xffff,
+ pidff->effect_direction);
+ pidff->set_effect[PID_START_DELAY].value[0] = effect->replay.delay;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if the values used in set_effect have changed
+ */
+static int pidff_needs_set_effect(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->replay.length != old->replay.length ||
+ effect->trigger.interval != old->trigger.interval ||
+ effect->trigger.button != old->trigger.button ||
+ effect->direction != old->direction ||
+ effect->replay.delay != old->replay.delay;
+}
+
+/*
+ * Send periodic effect report to the device
+ */
+static void pidff_set_periodic_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_periodic[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_periodic[PID_MAGNITUDE],
+ effect->u.periodic.magnitude);
+ pidff_set_signed(&pidff->set_periodic[PID_OFFSET],
+ effect->u.periodic.offset);
+ pidff_set(&pidff->set_periodic[PID_PHASE], effect->u.periodic.phase);
+ pidff->set_periodic[PID_PERIOD].value[0] = effect->u.periodic.period;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_PERIODIC],
+ USB_DIR_OUT);
+
+}
+
+/*
+ * Test if periodic effect parameters have changed
+ */
+static int pidff_needs_set_periodic(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ return effect->u.periodic.magnitude != old->u.periodic.magnitude ||
+ effect->u.periodic.offset != old->u.periodic.offset ||
+ effect->u.periodic.phase != old->u.periodic.phase ||
+ effect->u.periodic.period != old->u.periodic.period;
+}
+
+/*
+ * Send condition effect reports to the device
+ */
+static void pidff_set_condition_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ int i;
+
+ pidff->set_condition[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ for (i = 0; i < 2; i++) {
+ pidff->set_condition[PID_PARAM_BLOCK_OFFSET].value[0] = i;
+ pidff_set_signed(&pidff->set_condition[PID_CP_OFFSET],
+ effect->u.condition[i].center);
+ pidff_set_signed(&pidff->set_condition[PID_POS_COEFFICIENT],
+ effect->u.condition[i].right_coeff);
+ pidff_set_signed(&pidff->set_condition[PID_NEG_COEFFICIENT],
+ effect->u.condition[i].left_coeff);
+ pidff_set(&pidff->set_condition[PID_POS_SATURATION],
+ effect->u.condition[i].right_saturation);
+ pidff_set(&pidff->set_condition[PID_NEG_SATURATION],
+ effect->u.condition[i].left_saturation);
+ pidff_set(&pidff->set_condition[PID_DEAD_BAND],
+ effect->u.condition[i].deadband);
+ hid_wait_io(pidff->hid);
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONDITION],
+ USB_DIR_OUT);
+ }
+}
+
+/*
+ * Test if condition effect parameters have changed
+ */
+static int pidff_needs_set_condition(struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < 2; i++) {
+ struct ff_condition_effect *cond = &effect->u.condition[i];
+ struct ff_condition_effect *old_cond = &old->u.condition[i];
+
+ ret |= cond->center != old_cond->center ||
+ cond->right_coeff != old_cond->right_coeff ||
+ cond->left_coeff != old_cond->left_coeff ||
+ cond->right_saturation != old_cond->right_saturation ||
+ cond->left_saturation != old_cond->left_saturation ||
+ cond->deadband != old_cond->deadband;
+ }
+
+ return ret;
+}
+
+/*
+ * Send ramp force report to the device
+ */
+static void pidff_set_ramp_force_report(struct pidff_device *pidff,
+ struct ff_effect *effect)
+{
+ pidff->set_ramp[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+ pidff_set_signed(&pidff->set_ramp[PID_RAMP_START],
+ effect->u.ramp.start_level);
+ pidff_set_signed(&pidff->set_ramp[PID_RAMP_END],
+ effect->u.ramp.end_level);
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_RAMP],
+ USB_DIR_OUT);
+}
+
+/*
+ * Test if ramp force parameters have changed
+ */
+static int pidff_needs_set_ramp(struct ff_effect *effect, struct ff_effect *old)
+{
+ return effect->u.ramp.start_level != old->u.ramp.start_level ||
+ effect->u.ramp.end_level != old->u.ramp.end_level;
+}
+
+/*
+ * Send a request for effect upload to the device
+ *
+ * Returns 0 if device reported success, -ENOSPC if the device reported memory
+ * is full. Upon unknown response the function will retry for 60 times, if
+ * still unsuccessful -EIO is returned.
+ */
+static int pidff_request_effect_upload(struct pidff_device *pidff, int efnum)
+{
+ int j;
+
+ pidff->create_new_effect_type->value[0] = efnum;
+ hid_submit_report(pidff->hid, pidff->reports[PID_CREATE_NEW_EFFECT],
+ USB_DIR_OUT);
+ debug("create_new_effect sent, type: %d", efnum);
+
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] = 0;
+ pidff->block_load_status->value[0] = 0;
+ hid_wait_io(pidff->hid);
+
+ for (j = 0; j < 60; j++) {
+ debug("pid_block_load requested");
+ hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_LOAD],
+ USB_DIR_IN);
+ hid_wait_io(pidff->hid);
+ if (pidff->block_load_status->value[0] ==
+ pidff->status_id[PID_BLOCK_LOAD_SUCCESS]) {
+ debug("device reported free memory: %d bytes",
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
+ return 0;
+ }
+ if (pidff->block_load_status->value[0] ==
+ pidff->status_id[PID_BLOCK_LOAD_FULL]) {
+ debug("not enough memory free: %d bytes",
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
+ pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
+ return -ENOSPC;
+ }
+ }
+ printk(KERN_ERR "hid-pidff: pid_block_load failed 60 times\n");
+ return -EIO;
+}
+
+/*
+ * Play the effect with PID id n times
+ */
+static void pidff_playback_pid(struct pidff_device *pidff, int pid_id, int n)
+{
+ pidff->effect_operation[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
+
+ if (n == 0) {
+ pidff->effect_operation_status->value[0] =
+ pidff->operation_id[PID_EFFECT_STOP];
+ } else {
+ pidff->effect_operation_status->value[0] =
+ pidff->operation_id[PID_EFFECT_START];
+ pidff->effect_operation[PID_LOOP_COUNT].value[0] = n;
+ }
+
+ hid_wait_io(pidff->hid);
+ hid_submit_report(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],
+ USB_DIR_OUT);
+}
+
+/**
+ * Play the effect with effect id @effect_id for @value times
+ */
+static int pidff_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_playback_pid(pidff, pidff->pid_id[effect_id], value);
+
+ return 0;
+}
+
+/*
+ * Erase effect with PID id
+ */
+static void pidff_erase_pid(struct pidff_device *pidff, int pid_id)
+{
+ pidff->block_free[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
+ hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_FREE],
+ USB_DIR_OUT);
+}
+
+/*
+ * Stop and erase effect with effect_id
+ */
+static int pidff_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct pidff_device *pidff = dev->ff->private;
+ int pid_id = pidff->pid_id[effect_id];
+
+ debug("starting to erase %d/%d", effect_id, pidff->pid_id[effect_id]);
+ pidff_playback_pid(pidff, pid_id, 0);
+ pidff_erase_pid(pidff, pid_id);
+
+ return 0;
+}
+
+/*
+ * Effect upload handler
+ */
+static int pidff_upload_effect(struct input_dev *dev, struct ff_effect *effect,
+ struct ff_effect *old)
+{
+ struct pidff_device *pidff = dev->ff->private;
+ int type_id;
+ int error;
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_CONSTANT]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_constant(effect, old))
+ pidff_set_constant_force_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.constant.envelope,
+ &old->u.constant.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.constant.envelope);
+ break;
+
+ case FF_PERIODIC:
+ if (!old) {
+ switch (effect->u.periodic.waveform) {
+ case FF_SQUARE:
+ type_id = PID_SQUARE;
+ break;
+ case FF_TRIANGLE:
+ type_id = PID_TRIANGLE;
+ break;
+ case FF_SINE:
+ type_id = PID_SINE;
+ break;
+ case FF_SAW_UP:
+ type_id = PID_SAW_UP;
+ break;
+ case FF_SAW_DOWN:
+ type_id = PID_SAW_DOWN;
+ break;
+ default:
+ printk(KERN_ERR
+ "hid-pidff: invalid waveform\n");
+ return -EINVAL;
+ }
+
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[type_id]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_periodic(effect, old))
+ pidff_set_periodic_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.periodic.envelope,
+ &old->u.periodic.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.periodic.envelope);
+ break;
+
+ case FF_RAMP:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_RAMP]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_ramp(effect, old))
+ pidff_set_ramp_force_report(pidff, effect);
+ if (!old ||
+ pidff_needs_set_envelope(&effect->u.ramp.envelope,
+ &old->u.ramp.envelope))
+ pidff_set_envelope_report(pidff,
+ &effect->u.ramp.envelope);
+ break;
+
+ case FF_SPRING:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_SPRING]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_FRICTION:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_FRICTION]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_DAMPER:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_DAMPER]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ case FF_INERTIA:
+ if (!old) {
+ error = pidff_request_effect_upload(pidff,
+ pidff->type_id[PID_INERTIA]);
+ if (error)
+ return error;
+ }
+ if (!old || pidff_needs_set_effect(effect, old))
+ pidff_set_effect_report(pidff, effect);
+ if (!old || pidff_needs_set_condition(effect, old))
+ pidff_set_condition_report(pidff, effect);
+ break;
+
+ default:
+ printk(KERN_ERR "hid-pidff: invalid type\n");
+ return -EINVAL;
+ }
+
+ if (!old)
+ pidff->pid_id[effect->id] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
+
+ debug("uploaded");
+
+ return 0;
+}
+
+/*
+ * set_gain() handler
+ */
+static void pidff_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], gain);
+ hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
+ USB_DIR_OUT);
+}
+
+static void pidff_autocenter(struct pidff_device *pidff, u16 magnitude)
+{
+ struct hid_field *field =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field;
+
+ if (!magnitude) {
+ pidff_playback_pid(pidff, field->logical_minimum, 0);
+ return;
+ }
+
+ pidff_playback_pid(pidff, field->logical_minimum, 1);
+
+ pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum;
+ pidff->set_effect_type->value[0] = pidff->type_id[PID_SPRING];
+ pidff->set_effect[PID_DURATION].value[0] = 0;
+ pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = 0;
+ pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] = 0;
+ pidff_set(&pidff->set_effect[PID_GAIN], magnitude);
+ pidff->set_effect[PID_START_DELAY].value[0] = 0;
+
+ hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
+ USB_DIR_OUT);
+}
+
+/*
+ * pidff_set_autocenter() handler
+ */
+static void pidff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct pidff_device *pidff = dev->ff->private;
+
+ pidff_autocenter(pidff, magnitude);
+}
+
+/*
+ * Find fields from a report and fill a pidff_usage
+ */
+static int pidff_find_fields(struct pidff_usage *usage, const u8 *table,
+ struct hid_report *report, int count, int strict)
+{
+ int i, j, k, found;
+
+ for (k = 0; k < count; k++) {
+ found = 0;
+ for (i = 0; i < report->maxfield; i++) {
+ if (report->field[i]->maxusage !=
+ report->field[i]->report_count) {
+ debug("maxusage and report_count do not match, "
+ "skipping");
+ continue;
+ }
+ for (j = 0; j < report->field[i]->maxusage; j++) {
+ if (report->field[i]->usage[j].hid ==
+ (HID_UP_PID | table[k])) {
+ debug("found %d at %d->%d", k, i, j);
+ usage[k].field = report->field[i];
+ usage[k].value =
+ &report->field[i]->value[j];
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+ if (!found && strict) {
+ debug("failed to locate %d", k);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Return index into pidff_reports for the given usage
+ */
+static int pidff_check_usage(int usage)
+{
+ int i;
+
+ for (i = 0; i < sizeof(pidff_reports); i++)
+ if (usage == (HID_UP_PID | pidff_reports[i]))
+ return i;
+
+ return -1;
+}
+
+/*
+ * Find the reports and fill pidff->reports[]
+ * report_type specifies either OUTPUT or FEATURE reports
+ */
+static void pidff_find_reports(struct hid_device *hid, int report_type,
+ struct pidff_device *pidff)
+{
+ struct hid_report *report;
+ int i, ret;
+
+ list_for_each_entry(report,
+ &hid->report_enum[report_type].report_list, list) {
+ if (report->maxfield < 1)
+ continue;
+ ret = pidff_check_usage(report->field[0]->logical);
+ if (ret != -1) {
+ debug("found usage 0x%02x from field->logical",
+ pidff_reports[ret]);
+ pidff->reports[ret] = report;
+ continue;
+ }
+
+ /*
+ * Sometimes logical collections are stacked to indicate
+ * different usages for the report and the field, in which
+ * case we want the usage of the parent. However, Linux HID
+ * implementation hides this fact, so we have to dig it up
+ * ourselves
+ */
+ i = report->field[0]->usage[0].collection_index;
+ if (i <= 0 ||
+ hid->collection[i - 1].type != HID_COLLECTION_LOGICAL)
+ continue;
+ ret = pidff_check_usage(hid->collection[i - 1].usage);
+ if (ret != -1 && !pidff->reports[ret]) {
+ debug("found usage 0x%02x from collection array",
+ pidff_reports[ret]);
+ pidff->reports[ret] = report;
+ }
+ }
+}
+
+/*
+ * Test if the required reports have been found
+ */
+static int pidff_reports_ok(struct pidff_device *pidff)
+{
+ int i;
+
+ for (i = 0; i <= PID_REQUIRED_REPORTS; i++) {
+ if (!pidff->reports[i]) {
+ debug("%d missing", i);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+/*
+ * Find a field with a specific usage within a report
+ */
+static struct hid_field *pidff_find_special_field(struct hid_report *report,
+ int usage, int enforce_min)
+{
+ int i;
+
+ for (i = 0; i < report->maxfield; i++) {
+ if (report->field[i]->logical == (HID_UP_PID | usage) &&
+ report->field[i]->report_count > 0) {
+ if (!enforce_min ||
+ report->field[i]->logical_minimum == 1)
+ return report->field[i];
+ else {
+ printk(KERN_ERR "hid-pidff: logical_minimum "
+ "is not 1 as it should be\n");
+ return NULL;
+ }
+ }
+ }
+ return NULL;
+}
+
+/*
+ * Fill a pidff->*_id struct table
+ */
+static int pidff_find_special_keys(int *keys, struct hid_field *fld,
+ const u8 *usagetable, int count)
+{
+
+ int i, j;
+ int found = 0;
+
+ for (i = 0; i < count; i++) {
+ for (j = 0; j < fld->maxusage; j++) {
+ if (fld->usage[j].hid == (HID_UP_PID | usagetable[i])) {
+ keys[i] = j + 1;
+ found++;
+ break;
+ }
+ }
+ }
+ return found;
+}
+
+#define PIDFF_FIND_SPECIAL_KEYS(keys, field, name) \
+ pidff_find_special_keys(pidff->keys, pidff->field, pidff_ ## name, \
+ sizeof(pidff_ ## name))
+
+/*
+ * Find and check the special fields
+ */
+static int pidff_find_special_fields(struct pidff_device *pidff)
+{
+ debug("finding special fields");
+
+ pidff->create_new_effect_type =
+ pidff_find_special_field(pidff->reports[PID_CREATE_NEW_EFFECT],
+ 0x25, 1);
+ pidff->set_effect_type =
+ pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
+ 0x25, 1);
+ pidff->effect_direction =
+ pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
+ 0x57, 0);
+ pidff->device_control =
+ pidff_find_special_field(pidff->reports[PID_DEVICE_CONTROL],
+ 0x96, 1);
+ pidff->block_load_status =
+ pidff_find_special_field(pidff->reports[PID_BLOCK_LOAD],
+ 0x8b, 1);
+ pidff->effect_operation_status =
+ pidff_find_special_field(pidff->reports[PID_EFFECT_OPERATION],
+ 0x78, 1);
+
+ debug("search done");
+
+ if (!pidff->create_new_effect_type || !pidff->set_effect_type) {
+ printk(KERN_ERR "hid-pidff: effect lists not found\n");
+ return -1;
+ }
+
+ if (!pidff->effect_direction) {
+ printk(KERN_ERR "hid-pidff: direction field not found\n");
+ return -1;
+ }
+
+ if (!pidff->device_control) {
+ printk(KERN_ERR "hid-pidff: device control field not found\n");
+ return -1;
+ }
+
+ if (!pidff->block_load_status) {
+ printk(KERN_ERR
+ "hid-pidff: block load status field not found\n");
+ return -1;
+ }
+
+ if (!pidff->effect_operation_status) {
+ printk(KERN_ERR
+ "hid-pidff: effect operation field not found\n");
+ return -1;
+ }
+
+ pidff_find_special_keys(pidff->control_id, pidff->device_control,
+ pidff_device_control,
+ sizeof(pidff_device_control));
+
+ PIDFF_FIND_SPECIAL_KEYS(control_id, device_control, device_control);
+
+ if (!PIDFF_FIND_SPECIAL_KEYS(type_id, create_new_effect_type,
+ effect_types)) {
+ printk(KERN_ERR "hid-pidff: no effect types found\n");
+ return -1;
+ }
+
+ if (PIDFF_FIND_SPECIAL_KEYS(status_id, block_load_status,
+ block_load_status) !=
+ sizeof(pidff_block_load_status)) {
+ printk(KERN_ERR
+ "hidpidff: block load status identifiers not found\n");
+ return -1;
+ }
+
+ if (PIDFF_FIND_SPECIAL_KEYS(operation_id, effect_operation_status,
+ effect_operation_status) !=
+ sizeof(pidff_effect_operation_status)) {
+ printk(KERN_ERR
+ "hidpidff: effect operation identifiers not found\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * Find the implemented effect types
+ */
+static int pidff_find_effects(struct pidff_device *pidff,
+ struct input_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < sizeof(pidff_effect_types); i++) {
+ int pidff_type = pidff->type_id[i];
+ if (pidff->set_effect_type->usage[pidff_type].hid !=
+ pidff->create_new_effect_type->usage[pidff_type].hid) {
+ printk(KERN_ERR "hid-pidff: "
+ "effect type number %d is invalid\n", i);
+ return -1;
+ }
+ }
+
+ if (pidff->type_id[PID_CONSTANT])
+ set_bit(FF_CONSTANT, dev->ffbit);
+ if (pidff->type_id[PID_RAMP])
+ set_bit(FF_RAMP, dev->ffbit);
+ if (pidff->type_id[PID_SQUARE]) {
+ set_bit(FF_SQUARE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SINE]) {
+ set_bit(FF_SINE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_TRIANGLE]) {
+ set_bit(FF_TRIANGLE, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SAW_UP]) {
+ set_bit(FF_SAW_UP, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SAW_DOWN]) {
+ set_bit(FF_SAW_DOWN, dev->ffbit);
+ set_bit(FF_PERIODIC, dev->ffbit);
+ }
+ if (pidff->type_id[PID_SPRING])
+ set_bit(FF_SPRING, dev->ffbit);
+ if (pidff->type_id[PID_DAMPER])
+ set_bit(FF_DAMPER, dev->ffbit);
+ if (pidff->type_id[PID_INERTIA])
+ set_bit(FF_INERTIA, dev->ffbit);
+ if (pidff->type_id[PID_FRICTION])
+ set_bit(FF_FRICTION, dev->ffbit);
+
+ return 0;
+
+}
+
+#define PIDFF_FIND_FIELDS(name, report, strict) \
+ pidff_find_fields(pidff->name, pidff_ ## name, \
+ pidff->reports[report], \
+ sizeof(pidff_ ## name), strict)
+
+/*
+ * Fill and check the pidff_usages
+ */
+static int pidff_init_fields(struct pidff_device *pidff, struct input_dev *dev)
+{
+ int envelope_ok = 0;
+
+ if (PIDFF_FIND_FIELDS(set_effect, PID_SET_EFFECT, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown set_effect report layout\n");
+ return -ENODEV;
+ }
+
+ PIDFF_FIND_FIELDS(block_load, PID_BLOCK_LOAD, 0);
+ if (!pidff->block_load[PID_EFFECT_BLOCK_INDEX].value) {
+ printk(KERN_ERR
+ "hid-pidff: unknown pid_block_load report layout\n");
+ return -ENODEV;
+ }
+
+ if (PIDFF_FIND_FIELDS(effect_operation, PID_EFFECT_OPERATION, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown effect_operation report layout\n");
+ return -ENODEV;
+ }
+
+ if (PIDFF_FIND_FIELDS(block_free, PID_BLOCK_FREE, 1)) {
+ printk(KERN_ERR
+ "hid-pidff: unknown pid_block_free report layout\n");
+ return -ENODEV;
+ }
+
+ if (!PIDFF_FIND_FIELDS(set_envelope, PID_SET_ENVELOPE, 1))
+ envelope_ok = 1;
+
+ if (pidff_find_special_fields(pidff) || pidff_find_effects(pidff, dev))
+ return -ENODEV;
+
+ if (!envelope_ok) {
+ if (test_and_clear_bit(FF_CONSTANT, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has constant effect but no envelope\n");
+ if (test_and_clear_bit(FF_RAMP, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has ramp effect but no envelope\n");
+
+ if (test_and_clear_bit(FF_PERIODIC, dev->ffbit))
+ printk(KERN_WARNING "hid-pidff: "
+ "has periodic effect but no envelope\n");
+ }
+
+ if (test_bit(FF_CONSTANT, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_constant, PID_SET_CONSTANT, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown constant effect layout\n");
+ clear_bit(FF_CONSTANT, dev->ffbit);
+ }
+
+ if (test_bit(FF_RAMP, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_ramp, PID_SET_RAMP, 1)) {
+ printk(KERN_WARNING "hid-pidff: unknown ramp effect layout\n");
+ clear_bit(FF_RAMP, dev->ffbit);
+ }
+
+ if ((test_bit(FF_SPRING, dev->ffbit) ||
+ test_bit(FF_DAMPER, dev->ffbit) ||
+ test_bit(FF_FRICTION, dev->ffbit) ||
+ test_bit(FF_INERTIA, dev->ffbit)) &&
+ PIDFF_FIND_FIELDS(set_condition, PID_SET_CONDITION, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown condition effect layout\n");
+ clear_bit(FF_SPRING, dev->ffbit);
+ clear_bit(FF_DAMPER, dev->ffbit);
+ clear_bit(FF_FRICTION, dev->ffbit);
+ clear_bit(FF_INERTIA, dev->ffbit);
+ }
+
+ if (test_bit(FF_PERIODIC, dev->ffbit) &&
+ PIDFF_FIND_FIELDS(set_periodic, PID_SET_PERIODIC, 1)) {
+ printk(KERN_WARNING
+ "hid-pidff: unknown periodic effect layout\n");
+ clear_bit(FF_PERIODIC, dev->ffbit);
+ }
+
+ PIDFF_FIND_FIELDS(pool, PID_POOL, 0);
+
+ if (!PIDFF_FIND_FIELDS(device_gain, PID_DEVICE_GAIN, 1))
+ set_bit(FF_GAIN, dev->ffbit);
+
+ return 0;
+}
+
+/*
+ * Reset the device
+ */
+static void pidff_reset(struct pidff_device *pidff)
+{
+ struct hid_device *hid = pidff->hid;
+ int i = 0;
+
+ pidff->device_control->value[0] = pidff->control_id[PID_RESET];
+ /* We reset twice as sometimes hid_wait_io isn't waiting long enough */
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+
+ pidff->device_control->value[0] =
+ pidff->control_id[PID_ENABLE_ACTUATORS];
+ hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
+ hid_wait_io(hid);
+
+ /* pool report is sometimes messed up, refetch it */
+ hid_submit_report(hid, pidff->reports[PID_POOL], USB_DIR_IN);
+ hid_wait_io(hid);
+
+ if (pidff->pool[PID_SIMULTANEOUS_MAX].value) {
+ int sim_effects = pidff->pool[PID_SIMULTANEOUS_MAX].value[0];
+ while (sim_effects < 2) {
+ if (i++ > 20) {
+ printk(KERN_WARNING "hid-pidff: device reports "
+ "%d simultaneous effects\n",
+ sim_effects);
+ break;
+ }
+ debug("pid_pool requested again");
+ hid_submit_report(hid, pidff->reports[PID_POOL],
+ USB_DIR_IN);
+ hid_wait_io(hid);
+ }
+ }
+}
+
+/*
+ * Test if autocenter modification is using the supported method
+ */
+static int pidff_check_autocenter(struct pidff_device *pidff,
+ struct input_dev *dev)
+{
+ int error;
+
+ /*
+ * Let's find out if autocenter modification is supported
+ * Specification doesn't specify anything, so we request an
+ * effect upload and cancel it immediately. If the approved
+ * effect id was one above the minimum, then we assume the first
+ * effect id is a built-in spring type effect used for autocenter
+ */
+
+ error = pidff_request_effect_upload(pidff, 1);
+ if (error) {
+ printk(KERN_ERR "hid-pidff: upload request failed\n");
+ return error;
+ }
+
+ if (pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] ==
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum + 1) {
+ pidff_autocenter(pidff, 0xffff);
+ set_bit(FF_AUTOCENTER, dev->ffbit);
+ } else {
+ printk(KERN_NOTICE "hid-pidff: "
+ "device has unknown autocenter control method\n");
+ }
+
+ pidff_erase_pid(pidff,
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0]);
+
+ return 0;
+
+}
+
+/*
+ * Check if the device is PID and initialize it
+ */
+int hid_pidff_init(struct hid_device *hid)
+{
+ struct pidff_device *pidff;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct input_dev *dev = hidinput->input;
+ struct ff_device *ff;
+ int max_effects;
+ int error;
+
+ debug("starting pid init");
+
+ if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
+ debug("not a PID device, no output report");
+ return -ENODEV;
+ }
+
+ pidff = kzalloc(sizeof(*pidff), GFP_KERNEL);
+ if (!pidff)
+ return -ENOMEM;
+
+ pidff->hid = hid;
+
+ pidff_find_reports(hid, HID_OUTPUT_REPORT, pidff);
+ pidff_find_reports(hid, HID_FEATURE_REPORT, pidff);
+
+ if (!pidff_reports_ok(pidff)) {
+ debug("reports not ok, aborting");
+ error = -ENODEV;
+ goto fail;
+ }
+
+ error = pidff_init_fields(pidff, dev);
+ if (error)
+ goto fail;
+
+ pidff_reset(pidff);
+
+ if (test_bit(FF_GAIN, dev->ffbit)) {
+ pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], 0xffff);
+ hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
+ USB_DIR_OUT);
+ }
+
+ error = pidff_check_autocenter(pidff, dev);
+ if (error)
+ goto fail;
+
+ max_effects =
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_maximum -
+ pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum +
+ 1;
+ debug("max effects is %d", max_effects);
+
+ if (max_effects > PID_EFFECTS_MAX)
+ max_effects = PID_EFFECTS_MAX;
+
+ if (pidff->pool[PID_SIMULTANEOUS_MAX].value)
+ debug("max simultaneous effects is %d",
+ pidff->pool[PID_SIMULTANEOUS_MAX].value[0]);
+
+ if (pidff->pool[PID_RAM_POOL_SIZE].value)
+ debug("device memory size is %d bytes",
+ pidff->pool[PID_RAM_POOL_SIZE].value[0]);
+
+ if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
+ pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
+ printk(KERN_NOTICE "hid-pidff: "
+ "device does not support device managed pool\n");
+ goto fail;
+ }
+
+ error = input_ff_create(dev, max_effects);
+ if (error)
+ goto fail;
+
+ ff = dev->ff;
+ ff->private = pidff;
+ ff->upload = pidff_upload_effect;
+ ff->erase = pidff_erase_effect;
+ ff->set_gain = pidff_set_gain;
+ ff->set_autocenter = pidff_set_autocenter;
+ ff->playback = pidff_playback;
+
+ printk(KERN_INFO "Force feedback for USB HID PID devices by "
+ "Anssi Hannula <anssi.hannula@gmail.com>\n");
+
+ return 0;
+
+ fail:
+ kfree(pidff);
+ return error;
+}
diff --git a/drivers/usb/input/hid-tmff.c b/drivers/usb/input/hid-tmff.c
index 534425c..2d5be4c 100644
--- a/drivers/usb/input/hid-tmff.c
+++ b/drivers/usb/input/hid-tmff.c
@@ -28,97 +28,65 @@
*/
#include <linux/input.h>
-#include <linux/sched.h>
#undef DEBUG
#include <linux/usb.h>
-#include <linux/circ_buf.h>
-
#include "hid.h"
-#include "fixp-arith.h"
/* Usages for thrustmaster devices I know about */
#define THRUSTMASTER_USAGE_RUMBLE_LR (HID_UP_GENDESK | 0xbb)
-#define DELAY_CALC(t,delay) ((t) + (delay)*HZ/1000)
-/* Effect status */
-#define EFFECT_STARTED 0 /* Effect is going to play after some time */
-#define EFFECT_PLAYING 1 /* Effect is playing */
-#define EFFECT_USED 2
-
-/* For tmff_device::flags */
-#define DEVICE_CLOSING 0 /* The driver is being unitialised */
-
-/* Check that the current process can access an effect */
-#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
- || effect.owner == current->pid)
-
-#define TMFF_CHECK_ID(id) ((id) >= 0 && (id) < TMFF_EFFECTS)
-
-#define TMFF_CHECK_OWNERSHIP(i, l) \
- (test_bit(EFFECT_USED, l->effects[i].flags) \
- && CHECK_OWNERSHIP(l->effects[i]))
-
-#define TMFF_EFFECTS 8
-
-struct tmff_effect {
- pid_t owner;
-
- struct ff_effect effect;
-
- unsigned long flags[1];
- unsigned int count; /* Number of times left to play */
-
- unsigned long play_at; /* When the effect starts to play */
- unsigned long stop_at; /* When the effect ends */
-};
struct tmff_device {
- struct hid_device *hid;
-
struct hid_report *report;
-
struct hid_field *rumble;
-
- unsigned int effects_playing;
- struct tmff_effect effects[TMFF_EFFECTS];
- spinlock_t lock; /* device-level lock. Having locks on
- a per-effect basis could be nice, but
- isn't really necessary */
-
- unsigned long flags[1]; /* Contains various information about the
- state of the driver for this device */
-
- struct timer_list timer;
};
-/* Callbacks */
-static void hid_tmff_exit(struct hid_device *hid);
-static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-static int hid_tmff_flush(struct input_dev *input, struct file *file);
-static int hid_tmff_upload_effect(struct input_dev *input,
- struct ff_effect *effect);
-static int hid_tmff_erase(struct input_dev *input, int id);
+/* Changes values from 0 to 0xffff into values from minimum to maximum */
+static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
+{
+ int ret;
-/* Local functions */
-static void hid_tmff_recalculate_timer(struct tmff_device *tmff);
-static void hid_tmff_timer(unsigned long timer_data);
+ ret = (in * (maximum - minimum) / 0xffff) + minimum;
+ if (ret < minimum)
+ return minimum;
+ if (ret > maximum)
+ return maximum;
+ return ret;
+}
+
+static int hid_tmff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct tmff_device *tmff = data;
+ int left, right; /* Rumbling */
+
+ left = hid_tmff_scale(effect->u.rumble.weak_magnitude,
+ tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
+ right = hid_tmff_scale(effect->u.rumble.strong_magnitude,
+ tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
+
+ tmff->rumble->value[0] = left;
+ tmff->rumble->value[1] = right;
+ dbg("(left,right)=(%08x, %08x)", left, right);
+ hid_submit_report(hid, tmff->report, USB_DIR_OUT);
+
+ return 0;
+}
int hid_tmff_init(struct hid_device *hid)
{
- struct tmff_device *private;
+ struct tmff_device *tmff;
struct list_head *pos;
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *input_dev = hidinput->input;
+ int error;
- private = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
- if (!private)
+ tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
+ if (!tmff)
return -ENOMEM;
- hid->ff_private = private;
-
/* Find the report to use */
__list_for_each(pos, &hid->report_enum[HID_OUTPUT_REPORT].report_list) {
struct hid_report *report = (struct hid_report *)pos;
@@ -142,18 +110,18 @@
continue;
}
- if (private->report && private->report != report) {
+ if (tmff->report && tmff->report != report) {
warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR in other report");
continue;
}
- if (private->rumble && private->rumble != field) {
+ if (tmff->rumble && tmff->rumble != field) {
warn("ignoring duplicate THRUSTMASTER_USAGE_RUMBLE_LR");
continue;
}
- private->report = report;
- private->rumble = field;
+ tmff->report = report;
+ tmff->rumble = field;
set_bit(FF_RUMBLE, input_dev->ffbit);
break;
@@ -162,302 +130,17 @@
warn("ignoring unknown output usage %08x", field->usage[0].hid);
continue;
}
-
- /* Fallthrough to here only when a valid usage is found */
- input_dev->upload_effect = hid_tmff_upload_effect;
- input_dev->flush = hid_tmff_flush;
-
- set_bit(EV_FF, input_dev->evbit);
- input_dev->ff_effects_max = TMFF_EFFECTS;
}
}
- private->hid = hid;
-
- spin_lock_init(&private->lock);
- init_timer(&private->timer);
- private->timer.data = (unsigned long)private;
- private->timer.function = hid_tmff_timer;
-
- /* Event and exit callbacks */
- hid->ff_exit = hid_tmff_exit;
- hid->ff_event = hid_tmff_event;
+ error = input_ff_create_memless(input_dev, tmff, hid_tmff_play);
+ if (error) {
+ kfree(tmff);
+ return error;
+ }
info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
return 0;
}
-static void hid_tmff_exit(struct hid_device *hid)
-{
- struct tmff_device *tmff = hid->ff_private;
- unsigned long flags;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- set_bit(DEVICE_CLOSING, tmff->flags);
- del_timer_sync(&tmff->timer);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- kfree(tmff);
-}
-
-static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- struct tmff_device *tmff = hid->ff_private;
- struct tmff_effect *effect = &tmff->effects[code];
- unsigned long flags;
-
- if (type != EV_FF)
- return -EINVAL;
- if (!TMFF_CHECK_ID(code))
- return -EINVAL;
- if (!TMFF_CHECK_OWNERSHIP(code, tmff))
- return -EACCES;
- if (value < 0)
- return -EINVAL;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- if (value > 0) {
- set_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- effect->count = value;
- effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
- } else {
- clear_bit(EFFECT_STARTED, effect->flags);
- clear_bit(EFFECT_PLAYING, effect->flags);
- }
-
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- return 0;
-
-}
-
-/* Erase all effects this process owns */
-
-static int hid_tmff_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct tmff_device *tmff = hid->ff_private;
- int i;
-
- for (i=0; i<dev->ff_effects_max; ++i)
-
- /* NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
-
- if (current->pid == tmff->effects[i].owner
- && test_bit(EFFECT_USED, tmff->effects[i].flags))
- if (hid_tmff_erase(dev, i))
- warn("erase effect %d failed", i);
-
-
- return 0;
-}
-
-static int hid_tmff_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct tmff_device *tmff = hid->ff_private;
- unsigned long flags;
-
- if (!TMFF_CHECK_ID(id))
- return -EINVAL;
- if (!TMFF_CHECK_OWNERSHIP(id, tmff))
- return -EACCES;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- tmff->effects[id].flags[0] = 0;
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-
- return 0;
-}
-
-static int hid_tmff_upload_effect(struct input_dev *input,
- struct ff_effect *effect)
-{
- struct hid_device *hid = input->private;
- struct tmff_device *tmff = hid->ff_private;
- int id;
- unsigned long flags;
-
- if (!test_bit(effect->type, input->ffbit))
- return -EINVAL;
- if (effect->id != -1 && !TMFF_CHECK_ID(effect->id))
- return -EINVAL;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- if (effect->id == -1) {
- /* Find a free effect */
- for (id = 0; id < TMFF_EFFECTS && test_bit(EFFECT_USED, tmff->effects[id].flags); ++id);
-
- if (id >= TMFF_EFFECTS) {
- spin_unlock_irqrestore(&tmff->lock, flags);
- return -ENOSPC;
- }
-
- effect->id = id;
- tmff->effects[id].owner = current->pid;
- tmff->effects[id].flags[0] = 0;
- set_bit(EFFECT_USED, tmff->effects[id].flags);
-
- } else {
- /* Re-uploading an owned effect, to change parameters */
- id = effect->id;
- clear_bit(EFFECT_PLAYING, tmff->effects[id].flags);
- }
-
- tmff->effects[id].effect = *effect;
-
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
- return 0;
-}
-
-/* Start the timer for the next start/stop/delay */
-/* Always call this while tmff->lock is locked */
-
-static void hid_tmff_recalculate_timer(struct tmff_device *tmff)
-{
- int i;
- int events = 0;
- unsigned long next_time;
-
- next_time = 0; /* Shut up compiler's incorrect warning */
-
- /* Find the next change in an effect's status */
- for (i = 0; i < TMFF_EFFECTS; ++i) {
- struct tmff_effect *effect = &tmff->effects[i];
- unsigned long play_time;
-
- if (!test_bit(EFFECT_STARTED, effect->flags))
- continue;
-
- effect->stop_at = DELAY_CALC(effect->play_at, effect->effect.replay.length);
-
- if (!test_bit(EFFECT_PLAYING, effect->flags))
- play_time = effect->play_at;
- else
- play_time = effect->stop_at;
-
- events++;
-
- if (time_after(jiffies, play_time))
- play_time = jiffies;
-
- if (events == 1)
- next_time = play_time;
- else {
- if (time_after(next_time, play_time))
- next_time = play_time;
- }
- }
-
- if (!events && tmff->effects_playing) {
- /* Treat all effects turning off as an event */
- events = 1;
- next_time = jiffies;
- }
-
- if (!events) {
- /* No events, no time, no need for a timer. */
- del_timer_sync(&tmff->timer);
- return;
- }
-
- mod_timer(&tmff->timer, next_time);
-}
-
-/* Changes values from 0 to 0xffff into values from minimum to maximum */
-static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
-{
- int ret;
-
- ret = (in * (maximum - minimum) / 0xffff) + minimum;
- if (ret < minimum)
- return minimum;
- if (ret > maximum)
- return maximum;
- return ret;
-}
-
-static void hid_tmff_timer(unsigned long timer_data)
-{
- struct tmff_device *tmff = (struct tmff_device *) timer_data;
- struct hid_device *hid = tmff->hid;
- unsigned long flags;
- int left = 0, right = 0; /* Rumbling */
- int i;
-
- spin_lock_irqsave(&tmff->lock, flags);
-
- tmff->effects_playing = 0;
-
- for (i = 0; i < TMFF_EFFECTS; ++i) {
- struct tmff_effect *effect = &tmff->effects[i];
-
- if (!test_bit(EFFECT_STARTED, effect->flags))
- continue;
-
- if (!time_after(jiffies, effect->play_at))
- continue;
-
- if (time_after(jiffies, effect->stop_at)) {
-
- dbg("Finished playing once %d", i);
- clear_bit(EFFECT_PLAYING, effect->flags);
-
- if (--effect->count <= 0) {
- dbg("Stopped %d", i);
- clear_bit(EFFECT_STARTED, effect->flags);
- continue;
- } else {
- dbg("Start again %d", i);
- effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
- continue;
- }
- }
-
- ++tmff->effects_playing;
-
- set_bit(EFFECT_PLAYING, effect->flags);
-
- switch (effect->effect.type) {
- case FF_RUMBLE:
- right += effect->effect.u.rumble.strong_magnitude;
- left += effect->effect.u.rumble.weak_magnitude;
- break;
- default:
- BUG();
- break;
- }
- }
-
- left = hid_tmff_scale(left, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
- right = hid_tmff_scale(right, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
-
- if (left != tmff->rumble->value[0] || right != tmff->rumble->value[1]) {
- tmff->rumble->value[0] = left;
- tmff->rumble->value[1] = right;
- dbg("(left,right)=(%08x, %08x)", left, right);
- hid_submit_report(hid, tmff->report, USB_DIR_OUT);
- }
-
- if (!test_bit(DEVICE_CLOSING, tmff->flags))
- hid_tmff_recalculate_timer(tmff);
-
- spin_unlock_irqrestore(&tmff->lock, flags);
-}
diff --git a/drivers/usb/input/hid-zpff.c b/drivers/usb/input/hid-zpff.c
new file mode 100644
index 0000000..d2ce321
--- /dev/null
+++ b/drivers/usb/input/hid-zpff.c
@@ -0,0 +1,110 @@
+/*
+ * Force feedback support for Zeroplus based devices
+ *
+ * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/* #define DEBUG */
+
+#define debug(format, arg...) pr_debug("hid-zpff: " format "\n" , ## arg)
+
+#include <linux/input.h>
+#include <linux/usb.h>
+#include "hid.h"
+
+struct zpff_device {
+ struct hid_report *report;
+};
+
+static int hid_zpff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = dev->private;
+ struct zpff_device *zpff = data;
+ int left, right;
+
+ /*
+ * The following is specified the other way around in the Zeroplus
+ * datasheet but the order below is correct for the XFX Executioner;
+ * however it is possible that the XFX Executioner is an exception
+ */
+
+ left = effect->u.rumble.strong_magnitude;
+ right = effect->u.rumble.weak_magnitude;
+ debug("called with 0x%04x 0x%04x", left, right);
+
+ left = left * 0x7f / 0xffff;
+ right = right * 0x7f / 0xffff;
+
+ zpff->report->field[2]->value[0] = left;
+ zpff->report->field[3]->value[0] = right;
+ debug("running with 0x%02x 0x%02x", left, right);
+ hid_submit_report(hid, zpff->report, USB_DIR_OUT);
+
+ return 0;
+}
+
+int hid_zpff_init(struct hid_device *hid)
+{
+ struct zpff_device *zpff;
+ struct hid_report *report;
+ struct hid_input *hidinput = list_entry(hid->inputs.next,
+ struct hid_input, list);
+ struct list_head *report_list =
+ &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ int error;
+
+ if (list_empty(report_list)) {
+ printk(KERN_ERR "hid-zpff: no output report found\n");
+ return -ENODEV;
+ }
+
+ report = list_entry(report_list->next, struct hid_report, list);
+
+ if (report->maxfield < 4) {
+ printk(KERN_ERR "hid-zpff: not enough fields in report\n");
+ return -ENODEV;
+ }
+
+ zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
+ if (!zpff)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ error = input_ff_create_memless(dev, zpff, hid_zpff_play);
+ if (error) {
+ kfree(zpff);
+ return error;
+ }
+
+ zpff->report = report;
+ zpff->report->field[0]->value[0] = 0x00;
+ zpff->report->field[1]->value[0] = 0x02;
+ zpff->report->field[2]->value[0] = 0x00;
+ zpff->report->field[3]->value[0] = 0x00;
+ hid_submit_report(hid, zpff->report, USB_DIR_OUT);
+
+ printk(KERN_INFO "Force feedback for Zeroplus based devices by "
+ "Anssi Hannula <anssi.hannula@gmail.com>\n");
+
+ return 0;
+}
diff --git a/drivers/usb/input/hid.h b/drivers/usb/input/hid.h
index 778e575..b03fd9b 100644
--- a/drivers/usb/input/hid.h
+++ b/drivers/usb/input/hid.h
@@ -449,11 +449,6 @@
char phys[64]; /* Device physical location */
char uniq[64]; /* Device unique identifier (serial #) */
- void *ff_private; /* Private data for the force-feedback driver */
- void (*ff_exit)(struct hid_device*); /* Called by hid_exit_ff(hid) */
- int (*ff_event)(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value);
-
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
unsigned long pb_pressed_fn[NBITS(KEY_MAX)];
unsigned long pb_pressed_numlock[NBITS(KEY_MAX)];
@@ -521,29 +516,22 @@
int hid_set_field(struct hid_field *, unsigned, __s32);
void hid_submit_report(struct hid_device *, struct hid_report *, unsigned char dir);
void hid_init_reports(struct hid_device *hid);
-struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type);
int hid_wait_io(struct hid_device* hid);
#ifdef CONFIG_HID_FF
int hid_ff_init(struct hid_device *hid);
+
+int hid_lgff_init(struct hid_device *hid);
+int hid_tmff_init(struct hid_device *hid);
+int hid_zpff_init(struct hid_device *hid);
+#ifdef CONFIG_HID_PID
+int hid_pidff_init(struct hid_device *hid);
+#else
+static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
+#endif
+
#else
static inline int hid_ff_init(struct hid_device *hid) { return -1; }
#endif
-static inline void hid_ff_exit(struct hid_device *hid)
-{
- if (hid->ff_exit)
- hid->ff_exit(hid);
-}
-static inline int hid_ff_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- if (hid->ff_event)
- return hid->ff_event(hid, input, type, code, value);
- return -ENOSYS;
-}
-
-int hid_lgff_init(struct hid_device* hid);
-int hid_tmff_init(struct hid_device* hid);
-int hid_pid_init(struct hid_device* hid);
diff --git a/drivers/usb/input/pid.c b/drivers/usb/input/pid.c
deleted file mode 100644
index d9d9f65..0000000
--- a/drivers/usb/input/pid.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * PID Force feedback support for hid devices.
- *
- * Copyright (c) 2002 Rodrigo Damazio.
- * Portions by Johann Deneux and Bjorn Augustson
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Should you need to contact me, the author, you can do so by
- * e-mail - mail your message to <rdamazio@lsi.usp.br>
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/smp_lock.h>
-#include <linux/spinlock.h>
-#include <linux/input.h>
-#include <linux/usb.h>
-#include "hid.h"
-#include "pid.h"
-
-#define CHECK_OWNERSHIP(i, hid_pid) \
- ((i) < FF_EFFECTS_MAX && i >= 0 && \
- test_bit(FF_PID_FLAGS_USED, &hid_pid->effects[(i)].flags) && \
- (current->pid == 0 || \
- (hid_pid)->effects[(i)].owner == current->pid))
-
-/* Called when a transfer is completed */
-static void hid_pid_ctrl_out(struct urb *u, struct pt_regs *regs)
-{
- dev_dbg(&u->dev->dev, "hid_pid_ctrl_out - Transfer Completed\n");
-}
-
-static void hid_pid_exit(struct hid_device *hid)
-{
- struct hid_ff_pid *private = hid->ff_private;
-
- if (private->urbffout) {
- usb_kill_urb(private->urbffout);
- usb_free_urb(private->urbffout);
- }
-}
-
-static int pid_upload_periodic(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested periodic force upload\n");
- return 0;
-}
-
-static int pid_upload_constant(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested constant force upload\n");
- return 0;
-}
-
-static int pid_upload_condition(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "requested Condition force upload\n");
- return 0;
-}
-
-static int pid_upload_ramp(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
-{
- dev_info(&pid->hid->dev->dev, "request ramp force upload\n");
- return 0;
-}
-
-static int hid_pid_event(struct hid_device *hid, struct input_dev *input,
- unsigned int type, unsigned int code, int value)
-{
- dev_dbg(&hid->dev->dev, "PID event received: type=%d,code=%d,value=%d.\n", type, code, value);
-
- if (type != EV_FF)
- return -1;
-
- return 0;
-}
-
-/* Lock must be held by caller */
-static void hid_pid_ctrl_playback(struct hid_device *hid, struct hid_pid_effect *effect, int play)
-{
- if (play)
- set_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
- else
- clear_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
-}
-
-static int hid_pid_erase(struct input_dev *dev, int id)
-{
- struct hid_device *hid = dev->private;
- struct hid_ff_pid *pid = hid->ff_private;
- struct hid_field *field;
- unsigned long flags;
- int ret;
-
- if (!CHECK_OWNERSHIP(id, pid))
- return -EACCES;
-
- /* Find report */
- field = hid_find_field_by_usage(hid, HID_UP_PID | FF_PID_USAGE_BLOCK_FREE,
- HID_OUTPUT_REPORT);
- if (!field) {
- dev_err(&hid->dev->dev, "couldn't find report\n");
- return -EIO;
- }
-
- ret = hid_set_field(field, 0, pid->effects[id].device_id);
- if (ret) {
- dev_err(&hid->dev->dev, "couldn't set field\n");
- return ret;
- }
-
- hid_submit_report(hid, field->report, USB_DIR_OUT);
-
- spin_lock_irqsave(&pid->lock, flags);
- hid_pid_ctrl_playback(hid, pid->effects + id, 0);
- pid->effects[id].flags = 0;
- spin_unlock_irqrestore(&pid->lock, flags);
-
- return 0;
-}
-
-/* Erase all effects this process owns */
-static int hid_pid_flush(struct input_dev *dev, struct file *file)
-{
- struct hid_device *hid = dev->private;
- struct hid_ff_pid *pid = hid->ff_private;
- int i;
-
- /*NOTE: no need to lock here. The only times EFFECT_USED is
- modified is when effects are uploaded or when an effect is
- erased. But a process cannot close its dev/input/eventX fd
- and perform ioctls on the same fd all at the same time */
- /*FIXME: multiple threads, anyone? */
- for (i = 0; i < dev->ff_effects_max; ++i)
- if (current->pid == pid->effects[i].owner
- && test_bit(FF_PID_FLAGS_USED, &pid->effects[i].flags))
- if (hid_pid_erase(dev, i))
- dev_warn(&hid->dev->dev, "erase effect %d failed", i);
-
- return 0;
-}
-
-static int hid_pid_upload_effect(struct input_dev *dev,
- struct ff_effect *effect)
-{
- struct hid_ff_pid *pid_private = (struct hid_ff_pid *)(dev->private);
- int ret;
- int is_update;
- unsigned long flags;
-
- dev_dbg(&pid_private->hid->dev->dev, "upload effect called: effect_type=%x\n", effect->type);
- /* Check this effect type is supported by this device */
- if (!test_bit(effect->type, dev->ffbit)) {
- dev_dbg(&pid_private->hid->dev->dev,
- "invalid kind of effect requested.\n");
- return -EINVAL;
- }
-
- /*
- * If we want to create a new effect, get a free id
- */
- if (effect->id == -1) {
- int id = 0;
-
- // Spinlock so we don`t get a race condition when choosing IDs
- spin_lock_irqsave(&pid_private->lock, flags);
-
- while (id < FF_EFFECTS_MAX)
- if (!test_and_set_bit(FF_PID_FLAGS_USED, &pid_private->effects[id++].flags))
- break;
-
- if (id == FF_EFFECTS_MAX) {
- spin_unlock_irqrestore(&pid_private->lock, flags);
-// TEMP - We need to get ff_effects_max correctly first: || id >= dev->ff_effects_max) {
- dev_dbg(&pid_private->hid->dev->dev, "Not enough device memory\n");
- return -ENOMEM;
- }
-
- effect->id = id;
- dev_dbg(&pid_private->hid->dev->dev, "effect ID is %d.\n", id);
- pid_private->effects[id].owner = current->pid;
- pid_private->effects[id].flags = (1 << FF_PID_FLAGS_USED);
- spin_unlock_irqrestore(&pid_private->lock, flags);
-
- is_update = FF_PID_FALSE;
- } else {
- /* We want to update an effect */
- if (!CHECK_OWNERSHIP(effect->id, pid_private))
- return -EACCES;
-
- /* Parameter type cannot be updated */
- if (effect->type != pid_private->effects[effect->id].effect.type)
- return -EINVAL;
-
- /* Check the effect is not already being updated */
- if (test_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags))
- return -EAGAIN;
-
- is_update = FF_PID_TRUE;
- }
-
- /*
- * Upload the effect
- */
- switch (effect->type) {
- case FF_PERIODIC:
- ret = pid_upload_periodic(pid_private, effect, is_update);
- break;
-
- case FF_CONSTANT:
- ret = pid_upload_constant(pid_private, effect, is_update);
- break;
-
- case FF_SPRING:
- case FF_FRICTION:
- case FF_DAMPER:
- case FF_INERTIA:
- ret = pid_upload_condition(pid_private, effect, is_update);
- break;
-
- case FF_RAMP:
- ret = pid_upload_ramp(pid_private, effect, is_update);
- break;
-
- default:
- dev_dbg(&pid_private->hid->dev->dev,
- "invalid type of effect requested - %x.\n",
- effect->type);
- return -EINVAL;
- }
- /* If a packet was sent, forbid new updates until we are notified
- * that the packet was updated
- */
- if (ret == 0)
- set_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags);
- pid_private->effects[effect->id].effect = *effect;
- return ret;
-}
-
-int hid_pid_init(struct hid_device *hid)
-{
- struct hid_ff_pid *private;
- struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct input_dev *input_dev = hidinput->input;
-
- private = hid->ff_private = kzalloc(sizeof(struct hid_ff_pid), GFP_KERNEL);
- if (!private)
- return -ENOMEM;
-
- private->hid = hid;
-
- hid->ff_exit = hid_pid_exit;
- hid->ff_event = hid_pid_event;
-
- /* Open output URB */
- if (!(private->urbffout = usb_alloc_urb(0, GFP_KERNEL))) {
- kfree(private);
- return -1;
- }
-
- usb_fill_control_urb(private->urbffout, hid->dev, 0,
- (void *)&private->ffcr, private->ctrl_buffer, 8,
- hid_pid_ctrl_out, hid);
-
- input_dev->upload_effect = hid_pid_upload_effect;
- input_dev->flush = hid_pid_flush;
- input_dev->ff_effects_max = 8; // A random default
- set_bit(EV_FF, input_dev->evbit);
- set_bit(EV_FF_STATUS, input_dev->evbit);
-
- spin_lock_init(&private->lock);
-
- printk(KERN_INFO "Force feedback driver for PID devices by Rodrigo Damazio <rdamazio@lsi.usp.br>.\n");
-
- return 0;
-}
diff --git a/drivers/usb/input/pid.h b/drivers/usb/input/pid.h
deleted file mode 100644
index a2cb962..0000000
--- a/drivers/usb/input/pid.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * PID Force feedback support for hid devices.
- *
- * Copyright (c) 2002 Rodrigo Damazio.
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Should you need to contact me, the author, you can do so by
- * e-mail - mail your message to <rdamazio@lsi.usp.br>
- */
-
-#define FF_EFFECTS_MAX 64
-
-#define FF_PID_FLAGS_USED 1 /* If the effect exists */
-#define FF_PID_FLAGS_UPDATING 2 /* If the effect is being updated */
-#define FF_PID_FLAGS_PLAYING 3 /* If the effect is currently being played */
-
-#define FF_PID_FALSE 0
-#define FF_PID_TRUE 1
-
-struct hid_pid_effect {
- unsigned long flags;
- pid_t owner;
- unsigned int device_id; /* The device-assigned ID */
- struct ff_effect effect;
-};
-
-struct hid_ff_pid {
- struct hid_device *hid;
- unsigned long gain;
-
- struct urb *urbffout;
- struct usb_ctrlrequest ffcr;
- spinlock_t lock;
-
- unsigned char ctrl_buffer[8];
-
- struct hid_pid_effect effects[FF_EFFECTS_MAX];
-};
-
-/*
- * Constants from the PID usage table (still far from complete)
- */
-
-#define FF_PID_USAGE_BLOCK_LOAD 0x89UL
-#define FF_PID_USAGE_BLOCK_FREE 0x90UL
-#define FF_PID_USAGE_NEW_EFFECT 0xABUL
-#define FF_PID_USAGE_POOL_REPORT 0x7FUL
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 0222d92..8006e51 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1015,7 +1015,7 @@
dev_info(dev, "device disconnected\n");
}
-static struct tty_operations serial_ops = {
+static const struct tty_operations serial_ops = {
.open = serial_open,
.close = serial_close,
.write = serial_write,
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0e9ba0b..c787620 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -772,12 +772,12 @@
separator[1] = 0;
memset(vol->source_rfc1001_name,0x20,15);
- for(i=0;i < strnlen(system_utsname.nodename,15);i++) {
+ for(i=0;i < strnlen(utsname()->nodename,15);i++) {
/* does not have to be a perfect mapping since the field is
informational, only used for servers that do not support
port 445 and it can be overridden at mount time */
vol->source_rfc1001_name[i] =
- toupper(system_utsname.nodename[i]);
+ toupper(utsname()->nodename[i]);
}
vol->source_rfc1001_name[15] = 0;
/* null target name indicates to use *SMBSERVR default called name
@@ -2153,7 +2153,7 @@
32, nls_codepage);
bcc_ptr += 2 * bytes_returned;
bytes_returned =
- cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release,
+ cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release,
32, nls_codepage);
bcc_ptr += 2 * bytes_returned;
bcc_ptr += 2;
@@ -2180,8 +2180,8 @@
}
strcpy(bcc_ptr, "Linux version ");
bcc_ptr += strlen("Linux version ");
- strcpy(bcc_ptr, system_utsname.release);
- bcc_ptr += strlen(system_utsname.release) + 1;
+ strcpy(bcc_ptr, utsname()->release);
+ bcc_ptr += strlen(utsname()->release) + 1;
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
}
@@ -2445,7 +2445,7 @@
32, nls_codepage);
bcc_ptr += 2 * bytes_returned;
bytes_returned =
- cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32,
+ cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
nls_codepage);
bcc_ptr += 2 * bytes_returned;
bcc_ptr += 2; /* null terminate Linux version */
@@ -2462,8 +2462,8 @@
} else { /* ASCII */
strcpy(bcc_ptr, "Linux version ");
bcc_ptr += strlen("Linux version ");
- strcpy(bcc_ptr, system_utsname.release);
- bcc_ptr += strlen(system_utsname.release) + 1;
+ strcpy(bcc_ptr, utsname()->release);
+ bcc_ptr += strlen(utsname()->release) + 1;
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
bcc_ptr++; /* empty domain field */
@@ -2836,7 +2836,7 @@
32, nls_codepage);
bcc_ptr += 2 * bytes_returned;
bytes_returned =
- cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release, 32,
+ cifs_strtoUCS((__le16 *) bcc_ptr, utsname()->release, 32,
nls_codepage);
bcc_ptr += 2 * bytes_returned;
bcc_ptr += 2; /* null term version string */
@@ -2888,8 +2888,8 @@
strcpy(bcc_ptr, "Linux version ");
bcc_ptr += strlen("Linux version ");
- strcpy(bcc_ptr, system_utsname.release);
- bcc_ptr += strlen(system_utsname.release) + 1;
+ strcpy(bcc_ptr, utsname()->release);
+ bcc_ptr += strlen(utsname()->release) + 1;
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
bcc_ptr++; /* null domain */
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index d1705ab..22b4c35 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -111,7 +111,7 @@
bytes_ret = cifs_strtoUCS((__le16 *)bcc_ptr, "Linux version ", 32,
nls_cp);
bcc_ptr += 2 * bytes_ret;
- bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, system_utsname.release,
+ bytes_ret = cifs_strtoUCS((__le16 *) bcc_ptr, init_utsname()->release,
32, nls_cp);
bcc_ptr += 2 * bytes_ret;
bcc_ptr += 2; /* trailing null */
@@ -158,8 +158,8 @@
strcpy(bcc_ptr, "Linux version ");
bcc_ptr += strlen("Linux version ");
- strcpy(bcc_ptr, system_utsname.release);
- bcc_ptr += strlen(system_utsname.release) + 1;
+ strcpy(bcc_ptr, init_utsname()->release);
+ bcc_ptr += strlen(init_utsname()->release) + 1;
strcpy(bcc_ptr, CIFS_NETWORK_OPSYS);
bcc_ptr += strlen(CIFS_NETWORK_OPSYS) + 1;
diff --git a/fs/compat.c b/fs/compat.c
index 13fb08d..d98c96f 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -56,8 +56,6 @@
int compat_log = 1;
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
int compat_printk(const char *fmt, ...)
{
va_list ap;
diff --git a/fs/dnotify.c b/fs/dnotify.c
index f932591..2b0442d 100644
--- a/fs/dnotify.c
+++ b/fs/dnotify.c
@@ -92,7 +92,7 @@
prev = &odn->dn_next;
}
- error = f_setown(filp, current->pid, 0);
+ error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
if (error)
goto out_free;
diff --git a/fs/exec.c b/fs/exec.c
index 6270f8f..d993ea1 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1318,7 +1318,7 @@
case 'h':
down_read(&uts_sem);
rc = snprintf(out_ptr, out_end - out_ptr,
- "%s", system_utsname.nodename);
+ "%s", utsname()->nodename);
up_read(&uts_sem);
if (rc > out_end - out_ptr)
goto out;
diff --git a/fs/fcntl.c b/fs/fcntl.c
index d35cbc6..e4f2616 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -250,19 +250,22 @@
return error;
}
-static void f_modown(struct file *filp, unsigned long pid,
+static void f_modown(struct file *filp, struct pid *pid, enum pid_type type,
uid_t uid, uid_t euid, int force)
{
write_lock_irq(&filp->f_owner.lock);
if (force || !filp->f_owner.pid) {
- filp->f_owner.pid = pid;
+ put_pid(filp->f_owner.pid);
+ filp->f_owner.pid = get_pid(pid);
+ filp->f_owner.pid_type = type;
filp->f_owner.uid = uid;
filp->f_owner.euid = euid;
}
write_unlock_irq(&filp->f_owner.lock);
}
-int f_setown(struct file *filp, unsigned long arg, int force)
+int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
+ int force)
{
int err;
@@ -270,15 +273,44 @@
if (err)
return err;
- f_modown(filp, arg, current->uid, current->euid, force);
+ f_modown(filp, pid, type, current->uid, current->euid, force);
return 0;
}
+EXPORT_SYMBOL(__f_setown);
+int f_setown(struct file *filp, unsigned long arg, int force)
+{
+ enum pid_type type;
+ struct pid *pid;
+ int who = arg;
+ int result;
+ type = PIDTYPE_PID;
+ if (who < 0) {
+ type = PIDTYPE_PGID;
+ who = -who;
+ }
+ rcu_read_lock();
+ pid = find_pid(who);
+ result = __f_setown(filp, pid, type, force);
+ rcu_read_unlock();
+ return result;
+}
EXPORT_SYMBOL(f_setown);
void f_delown(struct file *filp)
{
- f_modown(filp, 0, 0, 0, 1);
+ f_modown(filp, NULL, PIDTYPE_PID, 0, 0, 1);
+}
+
+pid_t f_getown(struct file *filp)
+{
+ pid_t pid;
+ read_lock(&filp->f_owner.lock);
+ pid = pid_nr(filp->f_owner.pid);
+ if (filp->f_owner.pid_type == PIDTYPE_PGID)
+ pid = -pid;
+ read_unlock(&filp->f_owner.lock);
+ return pid;
}
static long do_fcntl(int fd, unsigned int cmd, unsigned long arg,
@@ -319,7 +351,7 @@
* current syscall conventions, the only way
* to fix this will be in libc.
*/
- err = filp->f_owner.pid;
+ err = f_getown(filp);
force_successful_syscall_return();
break;
case F_SETOWN:
@@ -470,24 +502,19 @@
void send_sigio(struct fown_struct *fown, int fd, int band)
{
struct task_struct *p;
- int pid;
+ enum pid_type type;
+ struct pid *pid;
read_lock(&fown->lock);
+ type = fown->pid_type;
pid = fown->pid;
if (!pid)
goto out_unlock_fown;
read_lock(&tasklist_lock);
- if (pid > 0) {
- p = find_task_by_pid(pid);
- if (p) {
- send_sigio_to_task(p, fown, fd, band);
- }
- } else {
- do_each_task_pid(-pid, PIDTYPE_PGID, p) {
- send_sigio_to_task(p, fown, fd, band);
- } while_each_task_pid(-pid, PIDTYPE_PGID, p);
- }
+ do_each_pid_task(pid, type, p) {
+ send_sigio_to_task(p, fown, fd, band);
+ } while_each_pid_task(pid, type, p);
read_unlock(&tasklist_lock);
out_unlock_fown:
read_unlock(&fown->lock);
@@ -503,9 +530,12 @@
int send_sigurg(struct fown_struct *fown)
{
struct task_struct *p;
- int pid, ret = 0;
+ enum pid_type type;
+ struct pid *pid;
+ int ret = 0;
read_lock(&fown->lock);
+ type = fown->pid_type;
pid = fown->pid;
if (!pid)
goto out_unlock_fown;
@@ -513,16 +543,9 @@
ret = 1;
read_lock(&tasklist_lock);
- if (pid > 0) {
- p = find_task_by_pid(pid);
- if (p) {
- send_sigurg_to_task(p, fown);
- }
- } else {
- do_each_task_pid(-pid, PIDTYPE_PGID, p) {
- send_sigurg_to_task(p, fown);
- } while_each_task_pid(-pid, PIDTYPE_PGID, p);
- }
+ do_each_pid_task(pid, type, p) {
+ send_sigurg_to_task(p, fown);
+ } while_each_pid_task(pid, type, p);
read_unlock(&tasklist_lock);
out_unlock_fown:
read_unlock(&fown->lock);
diff --git a/fs/file_table.c b/fs/file_table.c
index bc35a40..24f25a0 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -174,6 +174,7 @@
fops_put(file->f_op);
if (file->f_mode & FMODE_WRITE)
put_write_access(inode);
+ put_pid(file->f_owner.pid);
file_kill(file);
file->f_dentry = NULL;
file->f_vfsmnt = NULL;
diff --git a/fs/inode.c b/fs/inode.c
index ada7643..bf6bec4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -657,7 +657,7 @@
return inode;
}
-static inline unsigned long hash(struct super_block *sb, unsigned long hashval)
+static unsigned long hash(struct super_block *sb, unsigned long hashval)
{
unsigned long tmp;
@@ -1003,7 +1003,7 @@
list_del_init(&inode->i_list);
list_del_init(&inode->i_sb_list);
- inode->i_state|=I_FREEING;
+ inode->i_state |= I_FREEING;
inodes_stat.nr_inodes--;
spin_unlock(&inode_lock);
@@ -1210,13 +1210,15 @@
return;
now = current_fs_time(inode->i_sb);
- if (!timespec_equal(&inode->i_mtime, &now))
+ if (!timespec_equal(&inode->i_mtime, &now)) {
+ inode->i_mtime = now;
sync_it = 1;
- inode->i_mtime = now;
+ }
- if (!timespec_equal(&inode->i_ctime, &now))
+ if (!timespec_equal(&inode->i_ctime, &now)) {
+ inode->i_ctime = now;
sync_it = 1;
- inode->i_ctime = now;
+ }
if (sync_it)
mark_inode_dirty_sync(inode);
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index f95cc3f..87e1d03 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -202,7 +202,7 @@
/* This one ensures that our parent doesn't terminate while the
* reclaim is in progress */
lock_kernel();
- lockd_up();
+ lockd_up(0); /* note: this cannot fail as lockd is already running */
nlmclnt_prepare_reclaim(host);
/* First, reclaim all locks that have been marked. */
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 271e216..0116729 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -129,11 +129,11 @@
nlmclnt_next_cookie(&argp->cookie);
argp->state = nsm_local_state;
memcpy(&lock->fh, NFS_FH(fl->fl_file->f_dentry->d_inode), sizeof(struct nfs_fh));
- lock->caller = system_utsname.nodename;
+ lock->caller = utsname()->nodename;
lock->oh.data = req->a_owner;
lock->oh.len = snprintf(req->a_owner, sizeof(req->a_owner), "%u@%s",
(unsigned int)fl->fl_u.nfs_fl.owner->pid,
- system_utsname.nodename);
+ utsname()->nodename);
lock->svid = fl->fl_u.nfs_fl.owner->pid;
lock->fl.fl_start = fl->fl_start;
lock->fl.fl_end = fl->fl_end;
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 5954dcb..a816b92 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -145,7 +145,7 @@
*/
sprintf(buffer, "%u.%u.%u.%u", NIPQUAD(argp->addr));
if (!(p = xdr_encode_string(p, buffer))
- || !(p = xdr_encode_string(p, system_utsname.nodename)))
+ || !(p = xdr_encode_string(p, utsname()->nodename)))
return ERR_PTR(-EIO);
*p++ = htonl(argp->prog);
*p++ = htonl(argp->vers);
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 9a991b5..3cc369e 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -31,6 +31,7 @@
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
+#include <net/ip.h>
#include <linux/lockd/lockd.h>
#include <linux/nfs.h>
@@ -46,6 +47,7 @@
static DEFINE_MUTEX(nlmsvc_mutex);
static unsigned int nlmsvc_users;
static pid_t nlmsvc_pid;
+static struct svc_serv *nlmsvc_serv;
int nlmsvc_grace_period;
unsigned long nlmsvc_timeout;
@@ -96,7 +98,6 @@
static void
lockd(struct svc_rqst *rqstp)
{
- struct svc_serv *serv = rqstp->rq_server;
int err = 0;
unsigned long grace_period_expire;
@@ -112,6 +113,7 @@
* Let our maker know we're running.
*/
nlmsvc_pid = current->pid;
+ nlmsvc_serv = rqstp->rq_server;
complete(&lockd_start_done);
daemonize("lockd");
@@ -161,7 +163,7 @@
* Find a socket with data available and call its
* recvfrom routine.
*/
- err = svc_recv(serv, rqstp, timeout);
+ err = svc_recv(rqstp, timeout);
if (err == -EAGAIN || err == -EINTR)
continue;
if (err < 0) {
@@ -174,7 +176,7 @@
dprintk("lockd: request from %08x\n",
(unsigned)ntohl(rqstp->rq_addr.sin_addr.s_addr));
- svc_process(serv, rqstp);
+ svc_process(rqstp);
}
@@ -189,6 +191,7 @@
nlmsvc_invalidate_all();
nlm_shutdown_hosts();
nlmsvc_pid = 0;
+ nlmsvc_serv = NULL;
} else
printk(KERN_DEBUG
"lockd: new process, skipping host shutdown\n");
@@ -205,54 +208,77 @@
module_put_and_exit(0);
}
+
+static int find_socket(struct svc_serv *serv, int proto)
+{
+ struct svc_sock *svsk;
+ int found = 0;
+ list_for_each_entry(svsk, &serv->sv_permsocks, sk_list)
+ if (svsk->sk_sk->sk_protocol == proto) {
+ found = 1;
+ break;
+ }
+ return found;
+}
+
+static int make_socks(struct svc_serv *serv, int proto)
+{
+ /* Make any sockets that are needed but not present.
+ * If nlm_udpport or nlm_tcpport were set as module
+ * options, make those sockets unconditionally
+ */
+ static int warned;
+ int err = 0;
+ if (proto == IPPROTO_UDP || nlm_udpport)
+ if (!find_socket(serv, IPPROTO_UDP))
+ err = svc_makesock(serv, IPPROTO_UDP, nlm_udpport);
+ if (err == 0 && (proto == IPPROTO_TCP || nlm_tcpport))
+ if (!find_socket(serv, IPPROTO_TCP))
+ err= svc_makesock(serv, IPPROTO_TCP, nlm_tcpport);
+ if (!err)
+ warned = 0;
+ else if (warned++ == 0)
+ printk(KERN_WARNING
+ "lockd_up: makesock failed, error=%d\n", err);
+ return err;
+}
+
/*
* Bring up the lockd process if it's not already up.
*/
int
-lockd_up(void)
+lockd_up(int proto) /* Maybe add a 'family' option when IPv6 is supported ?? */
{
- static int warned;
struct svc_serv * serv;
int error = 0;
mutex_lock(&nlmsvc_mutex);
/*
- * Unconditionally increment the user count ... this is
- * the number of clients who _want_ a lockd process.
- */
- nlmsvc_users++;
- /*
* Check whether we're already up and running.
*/
- if (nlmsvc_pid)
+ if (nlmsvc_pid) {
+ if (proto)
+ error = make_socks(nlmsvc_serv, proto);
goto out;
+ }
/*
* Sanity check: if there's no pid,
* we should be the first user ...
*/
- if (nlmsvc_users > 1)
+ if (nlmsvc_users)
printk(KERN_WARNING
"lockd_up: no pid, %d users??\n", nlmsvc_users);
error = -ENOMEM;
- serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE);
+ serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, NULL);
if (!serv) {
printk(KERN_WARNING "lockd_up: create service failed\n");
goto out;
}
- if ((error = svc_makesock(serv, IPPROTO_UDP, nlm_udpport)) < 0
-#ifdef CONFIG_NFSD_TCP
- || (error = svc_makesock(serv, IPPROTO_TCP, nlm_tcpport)) < 0
-#endif
- ) {
- if (warned++ == 0)
- printk(KERN_WARNING
- "lockd_up: makesock failed, error=%d\n", error);
+ if ((error = make_socks(serv, proto)) < 0)
goto destroy_and_out;
- }
- warned = 0;
/*
* Create the kernel thread and wait for it to start.
@@ -272,6 +298,8 @@
destroy_and_out:
svc_destroy(serv);
out:
+ if (!error)
+ nlmsvc_users++;
mutex_unlock(&nlmsvc_mutex);
return error;
}
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index c9d4197..93c00ee 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -325,7 +325,7 @@
{
locks_copy_lock(&call->a_args.lock.fl, &lock->fl);
memcpy(&call->a_args.lock.fh, &lock->fh, sizeof(call->a_args.lock.fh));
- call->a_args.lock.caller = system_utsname.nodename;
+ call->a_args.lock.caller = utsname()->nodename;
call->a_args.lock.oh.len = lock->oh.len;
/* set default data area */
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 033ea4a..61c46fa 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -515,7 +515,7 @@
*/
#define NLM_void_sz 0
#define NLM_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
-#define NLM_caller_sz 1+XDR_QUADLEN(sizeof(system_utsname.nodename))
+#define NLM_caller_sz 1+XDR_QUADLEN(sizeof(utsname()->nodename))
#define NLM_netobj_sz 1+XDR_QUADLEN(XDR_MAX_NETOBJ)
/* #define NLM_owner_sz 1+XDR_QUADLEN(NLM_MAXOWNER) */
#define NLM_fhandle_sz 1+XDR_QUADLEN(NFS2_FHSIZE)
diff --git a/fs/locks.c b/fs/locks.c
index 21dfadf..e0b6a80 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1514,7 +1514,7 @@
goto out_unlock;
}
- error = f_setown(filp, current->pid, 0);
+ error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
out_unlock:
unlock_kernel();
return error;
diff --git a/fs/namespace.c b/fs/namespace.c
index 66d921e..55442a6 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -133,7 +133,7 @@
static inline int check_mnt(struct vfsmount *mnt)
{
- return mnt->mnt_namespace == current->namespace;
+ return mnt->mnt_namespace == current->nsproxy->namespace;
}
static void touch_namespace(struct namespace *ns)
@@ -830,7 +830,7 @@
if (parent_nd) {
detach_mnt(source_mnt, parent_nd);
attach_mnt(source_mnt, nd);
- touch_namespace(current->namespace);
+ touch_namespace(current->nsproxy->namespace);
} else {
mnt_set_mountpoint(dest_mnt, dest_dentry, source_mnt);
commit_tree(source_mnt);
@@ -1441,7 +1441,7 @@
*/
struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
{
- struct namespace *namespace = tsk->namespace;
+ struct namespace *namespace = tsk->nsproxy->namespace;
struct namespace *new_ns;
struct vfsmount *rootmnt = NULL, *pwdmnt = NULL, *altrootmnt = NULL;
struct vfsmount *p, *q;
@@ -1508,7 +1508,7 @@
int copy_namespace(int flags, struct task_struct *tsk)
{
- struct namespace *namespace = tsk->namespace;
+ struct namespace *namespace = tsk->nsproxy->namespace;
struct namespace *new_ns;
int err = 0;
@@ -1531,7 +1531,7 @@
goto out;
}
- tsk->namespace = new_ns;
+ tsk->nsproxy->namespace = new_ns;
out:
put_namespace(namespace);
@@ -1754,7 +1754,7 @@
detach_mnt(user_nd.mnt, &root_parent);
attach_mnt(user_nd.mnt, &old_nd); /* mount old root on put_old */
attach_mnt(new_nd.mnt, &root_parent); /* mount new_root on / */
- touch_namespace(current->namespace);
+ touch_namespace(current->nsproxy->namespace);
spin_unlock(&vfsmount_lock);
chroot_fs_refs(&user_nd, &new_nd);
security_sb_post_pivotroot(&user_nd, &new_nd);
@@ -1780,7 +1780,6 @@
{
struct vfsmount *mnt;
struct namespace *namespace;
- struct task_struct *g, *p;
mnt = do_kern_mount("rootfs", 0, "rootfs", NULL);
if (IS_ERR(mnt))
@@ -1796,13 +1795,8 @@
namespace->root = mnt;
mnt->mnt_namespace = namespace;
- init_task.namespace = namespace;
- read_lock(&tasklist_lock);
- do_each_thread(g, p) {
- get_namespace(namespace);
- p->namespace = namespace;
- } while_each_thread(g, p);
- read_unlock(&tasklist_lock);
+ init_task.nsproxy->namespace = namespace;
+ get_namespace(namespace);
set_fs_pwd(current->fs, namespace->root, namespace->root->mnt_root);
set_fs_root(current->fs, namespace->root, namespace->root->mnt_root);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index a3ee113..7933e2e 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -58,7 +58,6 @@
*/
static void nfs_callback_svc(struct svc_rqst *rqstp)
{
- struct svc_serv *serv = rqstp->rq_server;
int err;
__module_get(THIS_MODULE);
@@ -80,7 +79,7 @@
/*
* Listen for a request on the socket
*/
- err = svc_recv(serv, rqstp, MAX_SCHEDULE_TIMEOUT);
+ err = svc_recv(rqstp, MAX_SCHEDULE_TIMEOUT);
if (err == -EAGAIN || err == -EINTR)
continue;
if (err < 0) {
@@ -91,7 +90,7 @@
}
dprintk("%s: request from %u.%u.%u.%u\n", __FUNCTION__,
NIPQUAD(rqstp->rq_addr.sin_addr.s_addr));
- svc_process(serv, rqstp);
+ svc_process(rqstp);
}
svc_exit_thread(rqstp);
@@ -116,7 +115,7 @@
goto out;
init_completion(&nfs_callback_info.started);
init_completion(&nfs_callback_info.stopped);
- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE);
+ serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, NULL);
ret = -ENOMEM;
if (!serv)
goto out_err;
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index ec1938d..8106f3b 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -460,7 +460,8 @@
goto out;
if (server->flags & NFS_MOUNT_NONLM)
goto out;
- error = lockd_up();
+ error = lockd_up((server->flags & NFS_MOUNT_TCP) ?
+ IPPROTO_TCP : IPPROTO_UDP);
if (error < 0)
server->flags |= NFS_MOUNT_NONLM;
else
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index c0a754e..1d656a6 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -312,7 +312,7 @@
/* Override them by options set on kernel command-line */
root_nfs_parse(name, buf);
- cp = system_utsname.nodename;
+ cp = utsname()->nodename;
if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
return -1;
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 01bc68c..cfe141e 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -370,7 +370,7 @@
*/
if (!(inode->i_sb->s_type->fs_flags & FS_REQUIRES_DEV) &&
!(flags & NFSEXP_FSID)) {
- dprintk("exp_export: export of non-dev fs without fsid");
+ dprintk("exp_export: export of non-dev fs without fsid\n");
return -EINVAL;
}
if (!inode->i_sb->s_export_op) {
@@ -1078,6 +1078,7 @@
/* Iterator */
static void *e_start(struct seq_file *m, loff_t *pos)
+ __acquires(svc_export_cache.hash_lock)
{
loff_t n = *pos;
unsigned hash, export;
@@ -1086,7 +1087,7 @@
exp_readlock();
read_lock(&svc_export_cache.hash_lock);
if (!n--)
- return (void *)1;
+ return SEQ_START_TOKEN;
hash = n >> 32;
export = n & ((1LL<<32) - 1);
@@ -1110,7 +1111,7 @@
struct cache_head *ch = p;
int hash = (*pos >> 32);
- if (p == (void *)1)
+ if (p == SEQ_START_TOKEN)
hash = 0;
else if (ch->next == NULL) {
hash++;
@@ -1131,6 +1132,7 @@
}
static void e_stop(struct seq_file *m, void *p)
+ __releases(svc_export_cache.hash_lock)
{
read_unlock(&svc_export_cache.hash_lock);
exp_readunlock();
@@ -1178,15 +1180,13 @@
{
struct cache_head *cp = p;
struct svc_export *exp = container_of(cp, struct svc_export, h);
- svc_client *clp;
- if (p == (void *)1) {
+ if (p == SEQ_START_TOKEN) {
seq_puts(m, "# Version 1.1\n");
seq_puts(m, "# Path Client(Flags) # IPs\n");
return 0;
}
- clp = exp->ex_client;
cache_get(&exp->h);
if (cache_check(&svc_export_cache, &exp->h, NULL))
return 0;
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 8583d99..f6ca9fb 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -131,7 +131,7 @@
#define READ_BUF(nbytes) do { \
p = xdr_inline_decode(xdr, nbytes); \
if (!p) { \
- dprintk("NFSD: %s: reply buffer overflowed in line %d.", \
+ dprintk("NFSD: %s: reply buffer overflowed in line %d.\n", \
__FUNCTION__, __LINE__); \
return -EIO; \
} \
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index ee4eff2..15ded7a 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -600,7 +600,7 @@
&setattr->sa_stateid, CHECK_FH | WR_STATE, NULL);
nfs4_unlock_state();
if (status) {
- dprintk("NFSD: nfsd4_setattr: couldn't process stateid!");
+ dprintk("NFSD: nfsd4_setattr: couldn't process stateid!\n");
return status;
}
}
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 7046ac9..5c6a477 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -23,10 +23,14 @@
#include <linux/pagemap.h>
#include <linux/init.h>
#include <linux/string.h>
+#include <linux/smp_lock.h>
+#include <linux/ctype.h>
#include <linux/nfs.h>
#include <linux/nfsd_idmap.h>
+#include <linux/lockd/bind.h>
#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/svcsock.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#include <linux/nfsd/xdr.h>
@@ -35,8 +39,6 @@
#include <asm/uaccess.h>
-unsigned int nfsd_versbits = ~0;
-
/*
* We have a single directory with 9 nodes in it.
*/
@@ -52,7 +54,9 @@
NFSD_List,
NFSD_Fh,
NFSD_Threads,
+ NFSD_Pool_Threads,
NFSD_Versions,
+ NFSD_Ports,
/*
* The below MUST come last. Otherwise we leave a hole in nfsd_files[]
* with !CONFIG_NFSD_V4 and simple_fill_super() goes oops
@@ -75,7 +79,9 @@
static ssize_t write_getfs(struct file *file, char *buf, size_t size);
static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
static ssize_t write_threads(struct file *file, char *buf, size_t size);
+static ssize_t write_pool_threads(struct file *file, char *buf, size_t size);
static ssize_t write_versions(struct file *file, char *buf, size_t size);
+static ssize_t write_ports(struct file *file, char *buf, size_t size);
#ifdef CONFIG_NFSD_V4
static ssize_t write_leasetime(struct file *file, char *buf, size_t size);
static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
@@ -91,7 +97,9 @@
[NFSD_Getfs] = write_getfs,
[NFSD_Fh] = write_filehandle,
[NFSD_Threads] = write_threads,
+ [NFSD_Pool_Threads] = write_pool_threads,
[NFSD_Versions] = write_versions,
+ [NFSD_Ports] = write_ports,
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = write_leasetime,
[NFSD_RecoveryDir] = write_recoverydir,
@@ -358,6 +366,72 @@
return strlen(buf);
}
+extern int nfsd_nrpools(void);
+extern int nfsd_get_nrthreads(int n, int *);
+extern int nfsd_set_nrthreads(int n, int *);
+
+static ssize_t write_pool_threads(struct file *file, char *buf, size_t size)
+{
+ /* if size > 0, look for an array of number of threads per node
+ * and apply them then write out number of threads per node as reply
+ */
+ char *mesg = buf;
+ int i;
+ int rv;
+ int len;
+ int npools = nfsd_nrpools();
+ int *nthreads;
+
+ if (npools == 0) {
+ /*
+ * NFS is shut down. The admin can start it by
+ * writing to the threads file but NOT the pool_threads
+ * file, sorry. Report zero threads.
+ */
+ strcpy(buf, "0\n");
+ return strlen(buf);
+ }
+
+ nthreads = kcalloc(npools, sizeof(int), GFP_KERNEL);
+ if (nthreads == NULL)
+ return -ENOMEM;
+
+ if (size > 0) {
+ for (i = 0; i < npools; i++) {
+ rv = get_int(&mesg, &nthreads[i]);
+ if (rv == -ENOENT)
+ break; /* fewer numbers than pools */
+ if (rv)
+ goto out_free; /* syntax error */
+ rv = -EINVAL;
+ if (nthreads[i] < 0)
+ goto out_free;
+ }
+ rv = nfsd_set_nrthreads(i, nthreads);
+ if (rv)
+ goto out_free;
+ }
+
+ rv = nfsd_get_nrthreads(npools, nthreads);
+ if (rv)
+ goto out_free;
+
+ mesg = buf;
+ size = SIMPLE_TRANSACTION_LIMIT;
+ for (i = 0; i < npools && size > 0; i++) {
+ snprintf(mesg, size, "%d%c", nthreads[i], (i == npools-1 ? '\n' : ' '));
+ len = strlen(mesg);
+ size -= len;
+ mesg += len;
+ }
+
+ return (mesg-buf);
+
+out_free:
+ kfree(nthreads);
+ return rv;
+}
+
static ssize_t write_versions(struct file *file, char *buf, size_t size)
{
/*
@@ -372,6 +446,10 @@
if (size>0) {
if (nfsd_serv)
+ /* Cannot change versions without updating
+ * nfsd_serv->sv_xdrsize, and reallocing
+ * rq_argp and rq_resp
+ */
return -EBUSY;
if (buf[size-1] != '\n')
return -EINVAL;
@@ -390,10 +468,7 @@
case 2:
case 3:
case 4:
- if (sign != '-')
- NFSCTL_VERSET(nfsd_versbits, num);
- else
- NFSCTL_VERUNSET(nfsd_versbits, num);
+ nfsd_vers(num, sign == '-' ? NFSD_CLEAR : NFSD_SET);
break;
default:
return -EINVAL;
@@ -404,16 +479,15 @@
/* If all get turned off, turn them back on, as
* having no versions is BAD
*/
- if ((nfsd_versbits & NFSCTL_VERALL)==0)
- nfsd_versbits = NFSCTL_VERALL;
+ nfsd_reset_versions();
}
/* Now write current state into reply buffer */
len = 0;
sep = "";
for (num=2 ; num <= 4 ; num++)
- if (NFSCTL_VERISSET(NFSCTL_VERALL, num)) {
+ if (nfsd_vers(num, NFSD_AVAIL)) {
len += sprintf(buf+len, "%s%c%d", sep,
- NFSCTL_VERISSET(nfsd_versbits, num)?'+':'-',
+ nfsd_vers(num, NFSD_TEST)?'+':'-',
num);
sep = " ";
}
@@ -421,6 +495,62 @@
return len;
}
+static ssize_t write_ports(struct file *file, char *buf, size_t size)
+{
+ if (size == 0) {
+ int len = 0;
+ lock_kernel();
+ if (nfsd_serv)
+ len = svc_sock_names(buf, nfsd_serv, NULL);
+ unlock_kernel();
+ return len;
+ }
+ /* Either a single 'fd' number is written, in which
+ * case it must be for a socket of a supported family/protocol,
+ * and we use it as an nfsd socket, or
+ * A '-' followed by the 'name' of a socket in which case
+ * we close the socket.
+ */
+ if (isdigit(buf[0])) {
+ char *mesg = buf;
+ int fd;
+ int err;
+ err = get_int(&mesg, &fd);
+ if (err)
+ return -EINVAL;
+ if (fd < 0)
+ return -EINVAL;
+ err = nfsd_create_serv();
+ if (!err) {
+ int proto = 0;
+ err = lockd_up(proto);
+ if (!err) {
+ err = svc_addsock(nfsd_serv, fd, buf, &proto);
+ if (err)
+ lockd_down();
+ }
+ /* Decrease the count, but don't shutdown the
+ * the service
+ */
+ nfsd_serv->sv_nrthreads--;
+ }
+ return err;
+ }
+ if (buf[0] == '-') {
+ char *toclose = kstrdup(buf+1, GFP_KERNEL);
+ int len = 0;
+ if (!toclose)
+ return -ENOMEM;
+ lock_kernel();
+ if (nfsd_serv)
+ len = svc_sock_names(buf, nfsd_serv, toclose);
+ unlock_kernel();
+ kfree(toclose);
+ return len;
+ }
+ return -EINVAL;
+}
+
#ifdef CONFIG_NFSD_V4
extern time_t nfs4_leasetime(void);
@@ -483,7 +613,9 @@
[NFSD_List] = {"exports", &exports_operations, S_IRUGO},
[NFSD_Fh] = {"filehandle", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Threads] = {"threads", &transaction_ops, S_IWUSR|S_IRUSR},
+ [NFSD_Pool_Threads] = {"pool_threads", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_Versions] = {"versions", &transaction_ops, S_IWUSR|S_IRUSR},
+ [NFSD_Ports] = {"portlist", &transaction_ops, S_IWUSR|S_IRUGO},
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
[NFSD_RecoveryDir] = {"nfsv4recoverydir", &transaction_ops, S_IWUSR|S_IRUSR},
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index ec1decf..1944305 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -57,12 +57,6 @@
static unsigned long nfsd_last_call;
static DEFINE_SPINLOCK(nfsd_call_lock);
-struct nfsd_list {
- struct list_head list;
- struct task_struct *task;
-};
-static struct list_head nfsd_list = LIST_HEAD_INIT(nfsd_list);
-
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
static struct svc_stat nfsd_acl_svcstats;
static struct svc_version * nfsd_acl_version[] = {
@@ -117,6 +111,32 @@
};
+int nfsd_vers(int vers, enum vers_op change)
+{
+ if (vers < NFSD_MINVERS || vers >= NFSD_NRVERS)
+ return -1;
+ switch(change) {
+ case NFSD_SET:
+ nfsd_versions[vers] = nfsd_version[vers];
+ break;
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+ if (vers < NFSD_ACL_NRVERS)
+ nfsd_acl_version[vers] = nfsd_acl_version[vers];
+#endif
+ case NFSD_CLEAR:
+ nfsd_versions[vers] = NULL;
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+ if (vers < NFSD_ACL_NRVERS)
+ nfsd_acl_version[vers] = NULL;
+#endif
+ break;
+ case NFSD_TEST:
+ return nfsd_versions[vers] != NULL;
+ case NFSD_AVAIL:
+ return nfsd_version[vers] != NULL;
+ }
+ return 0;
+}
/*
* Maximum number of nfsd processes
*/
@@ -130,16 +150,175 @@
return nfsd_serv->sv_nrthreads;
}
+static int killsig; /* signal that was used to kill last nfsd */
+static void nfsd_last_thread(struct svc_serv *serv)
+{
+ /* When last nfsd thread exits we need to do some clean-up */
+ struct svc_sock *svsk;
+ list_for_each_entry(svsk, &serv->sv_permsocks, sk_list)
+ lockd_down();
+ nfsd_serv = NULL;
+ nfsd_racache_shutdown();
+ nfs4_state_shutdown();
+
+ printk(KERN_WARNING "nfsd: last server has exited\n");
+ if (killsig != SIG_NOCLEAN) {
+ printk(KERN_WARNING "nfsd: unexporting all filesystems\n");
+ nfsd_export_flush();
+ }
+}
+
+void nfsd_reset_versions(void)
+{
+ int found_one = 0;
+ int i;
+
+ for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) {
+ if (nfsd_program.pg_vers[i])
+ found_one = 1;
+ }
+
+ if (!found_one) {
+ for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++)
+ nfsd_program.pg_vers[i] = nfsd_version[i];
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+ for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++)
+ nfsd_acl_program.pg_vers[i] =
+ nfsd_acl_version[i];
+#endif
+ }
+}
+
+int nfsd_create_serv(void)
+{
+ int err = 0;
+ lock_kernel();
+ if (nfsd_serv) {
+ svc_get(nfsd_serv);
+ unlock_kernel();
+ return 0;
+ }
+
+ atomic_set(&nfsd_busy, 0);
+ nfsd_serv = svc_create_pooled(&nfsd_program, NFSD_BUFSIZE,
+ nfsd_last_thread,
+ nfsd, SIG_NOCLEAN, THIS_MODULE);
+ if (nfsd_serv == NULL)
+ err = -ENOMEM;
+ unlock_kernel();
+ do_gettimeofday(&nfssvc_boot); /* record boot time */
+ return err;
+}
+
+static int nfsd_init_socks(int port)
+{
+ int error;
+ if (!list_empty(&nfsd_serv->sv_permsocks))
+ return 0;
+
+ error = lockd_up(IPPROTO_UDP);
+ if (error >= 0) {
+ error = svc_makesock(nfsd_serv, IPPROTO_UDP, port);
+ if (error < 0)
+ lockd_down();
+ }
+ if (error < 0)
+ return error;
+
+#ifdef CONFIG_NFSD_TCP
+ error = lockd_up(IPPROTO_TCP);
+ if (error >= 0) {
+ error = svc_makesock(nfsd_serv, IPPROTO_TCP, port);
+ if (error < 0)
+ lockd_down();
+ }
+ if (error < 0)
+ return error;
+#endif
+ return 0;
+}
+
+int nfsd_nrpools(void)
+{
+ if (nfsd_serv == NULL)
+ return 0;
+ else
+ return nfsd_serv->sv_nrpools;
+}
+
+int nfsd_get_nrthreads(int n, int *nthreads)
+{
+ int i = 0;
+
+ if (nfsd_serv != NULL) {
+ for (i = 0; i < nfsd_serv->sv_nrpools && i < n; i++)
+ nthreads[i] = nfsd_serv->sv_pools[i].sp_nrthreads;
+ }
+
+ return 0;
+}
+
+int nfsd_set_nrthreads(int n, int *nthreads)
+{
+ int i = 0;
+ int tot = 0;
+ int err = 0;
+
+ if (nfsd_serv == NULL || n <= 0)
+ return 0;
+
+ if (n > nfsd_serv->sv_nrpools)
+ n = nfsd_serv->sv_nrpools;
+
+ /* enforce a global maximum number of threads */
+ tot = 0;
+ for (i = 0; i < n; i++) {
+ if (nthreads[i] > NFSD_MAXSERVS)
+ nthreads[i] = NFSD_MAXSERVS;
+ tot += nthreads[i];
+ }
+ if (tot > NFSD_MAXSERVS) {
+ /* total too large: scale down requested numbers */
+ for (i = 0; i < n && tot > 0; i++) {
+ int new = nthreads[i] * NFSD_MAXSERVS / tot;
+ tot -= (nthreads[i] - new);
+ nthreads[i] = new;
+ }
+ for (i = 0; i < n && tot > 0; i++) {
+ nthreads[i]--;
+ tot--;
+ }
+ }
+
+ /*
+ * There must always be a thread in pool 0; the admin
+ * can't shut down NFS completely using pool_threads.
+ */
+ if (nthreads[0] == 0)
+ nthreads[0] = 1;
+
+ /* apply the new numbers */
+ lock_kernel();
+ svc_get(nfsd_serv);
+ for (i = 0; i < n; i++) {
+ err = svc_set_num_threads(nfsd_serv, &nfsd_serv->sv_pools[i],
+ nthreads[i]);
+ if (err)
+ break;
+ }
+ svc_destroy(nfsd_serv);
+ unlock_kernel();
+
+ return err;
+}
+
int
nfsd_svc(unsigned short port, int nrservs)
{
int error;
- int none_left, found_one, i;
- struct list_head *victim;
lock_kernel();
- dprintk("nfsd: creating service: vers 0x%x\n",
- nfsd_versbits);
+ dprintk("nfsd: creating service\n");
error = -EINVAL;
if (nrservs <= 0)
nrservs = 0;
@@ -153,91 +332,20 @@
error = nfs4_state_start();
if (error<0)
goto out;
- if (!nfsd_serv) {
- /*
- * Use the nfsd_ctlbits to define which
- * versions that will be advertised.
- * If nfsd_ctlbits doesn't list any version,
- * export them all.
- */
- found_one = 0;
- for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++) {
- if (NFSCTL_VERISSET(nfsd_versbits, i)) {
- nfsd_program.pg_vers[i] = nfsd_version[i];
- found_one = 1;
- } else
- nfsd_program.pg_vers[i] = NULL;
- }
+ nfsd_reset_versions();
- if (!found_one) {
- for (i = NFSD_MINVERS; i < NFSD_NRVERS; i++)
- nfsd_program.pg_vers[i] = nfsd_version[i];
- }
+ error = nfsd_create_serv();
+ if (error)
+ goto out;
+ error = nfsd_init_socks(port);
+ if (error)
+ goto failure;
-#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
- found_one = 0;
-
- for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) {
- if (NFSCTL_VERISSET(nfsd_versbits, i)) {
- nfsd_acl_program.pg_vers[i] =
- nfsd_acl_version[i];
- found_one = 1;
- } else
- nfsd_acl_program.pg_vers[i] = NULL;
- }
-
- if (!found_one) {
- for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++)
- nfsd_acl_program.pg_vers[i] =
- nfsd_acl_version[i];
- }
-#endif
-
- atomic_set(&nfsd_busy, 0);
- error = -ENOMEM;
- nfsd_serv = svc_create(&nfsd_program, NFSD_BUFSIZE);
- if (nfsd_serv == NULL)
- goto out;
- error = svc_makesock(nfsd_serv, IPPROTO_UDP, port);
- if (error < 0)
- goto failure;
-
-#ifdef CONFIG_NFSD_TCP
- error = svc_makesock(nfsd_serv, IPPROTO_TCP, port);
- if (error < 0)
- goto failure;
-#endif
- do_gettimeofday(&nfssvc_boot); /* record boot time */
- } else
- nfsd_serv->sv_nrthreads++;
- nrservs -= (nfsd_serv->sv_nrthreads-1);
- while (nrservs > 0) {
- nrservs--;
- __module_get(THIS_MODULE);
- error = svc_create_thread(nfsd, nfsd_serv);
- if (error < 0) {
- module_put(THIS_MODULE);
- break;
- }
- }
- victim = nfsd_list.next;
- while (nrservs < 0 && victim != &nfsd_list) {
- struct nfsd_list *nl =
- list_entry(victim,struct nfsd_list, list);
- victim = victim->next;
- send_sig(SIG_NOCLEAN, nl->task, 1);
- nrservs++;
- }
+ error = svc_set_num_threads(nfsd_serv, NULL, nrservs);
failure:
- none_left = (nfsd_serv->sv_nrthreads == 1);
svc_destroy(nfsd_serv); /* Release server */
- if (none_left) {
- nfsd_serv = NULL;
- nfsd_racache_shutdown();
- nfs4_state_shutdown();
- }
out:
unlock_kernel();
return error;
@@ -270,10 +378,8 @@
static void
nfsd(struct svc_rqst *rqstp)
{
- struct svc_serv *serv = rqstp->rq_server;
struct fs_struct *fsp;
int err;
- struct nfsd_list me;
sigset_t shutdown_mask, allowed_mask;
/* Lock module and set up kernel thread */
@@ -297,10 +403,7 @@
nfsdstats.th_cnt++;
- lockd_up(); /* start lockd */
-
- me.task = current;
- list_add(&me.list, &nfsd_list);
+ rqstp->rq_task = current;
unlock_kernel();
@@ -322,8 +425,7 @@
* Find a socket with data available and call its
* recvfrom routine.
*/
- while ((err = svc_recv(serv, rqstp,
- 60*60*HZ)) == -EAGAIN)
+ while ((err = svc_recv(rqstp, 60*60*HZ)) == -EAGAIN)
;
if (err < 0)
break;
@@ -336,7 +438,7 @@
/* Process request with signals blocked. */
sigprocmask(SIG_SETMASK, &allowed_mask, NULL);
- svc_process(serv, rqstp);
+ svc_process(rqstp);
/* Unlock export hash tables */
exp_readunlock();
@@ -353,29 +455,13 @@
if (sigismember(¤t->pending.signal, signo) &&
!sigismember(¤t->blocked, signo))
break;
- err = signo;
+ killsig = signo;
}
- /* Clear signals before calling lockd_down() and svc_exit_thread() */
+ /* Clear signals before calling svc_exit_thread() */
flush_signals(current);
lock_kernel();
- /* Release lockd */
- lockd_down();
-
- /* Check if this is last thread */
- if (serv->sv_nrthreads==1) {
-
- printk(KERN_WARNING "nfsd: last server has exited\n");
- if (err != SIG_NOCLEAN) {
- printk(KERN_WARNING "nfsd: unexporting all filesystems\n");
- nfsd_export_flush();
- }
- nfsd_serv = NULL;
- nfsd_racache_shutdown(); /* release read-ahead cache */
- nfs4_state_shutdown();
- }
- list_del(&me.list);
nfsdstats.th_cnt --;
out:
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index c9e3b5a..443ebc5 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1114,7 +1114,7 @@
*/
if (!resfhp->fh_dentry) {
/* called from nfsd_proc_mkdir, or possibly nfsd3_proc_create */
- fh_lock(fhp);
+ fh_lock_nested(fhp, I_MUTEX_PARENT);
dchild = lookup_one_len(fname, dentry, flen);
err = PTR_ERR(dchild);
if (IS_ERR(dchild))
@@ -1240,7 +1240,7 @@
err = nfserr_notdir;
if(!dirp->i_op || !dirp->i_op->lookup)
goto out;
- fh_lock(fhp);
+ fh_lock_nested(fhp, I_MUTEX_PARENT);
/*
* Compose the response file handle.
@@ -1494,7 +1494,7 @@
if (isdotent(name, len))
goto out;
- fh_lock(ffhp);
+ fh_lock_nested(ffhp, I_MUTEX_PARENT);
ddir = ffhp->fh_dentry;
dirp = ddir->d_inode;
@@ -1644,7 +1644,7 @@
if (err)
goto out;
- fh_lock(fhp);
+ fh_lock_nested(fhp, I_MUTEX_PARENT);
dentry = fhp->fh_dentry;
dirp = dentry->d_inode;
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 9de6b49..b1317ad 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -163,8 +163,6 @@
{
struct nls_table ** tmp = &tables;
- if (!nls)
- return -EINVAL;
if (nls->next)
return -EBUSY;
diff --git a/fs/proc/array.c b/fs/proc/array.c
index c0e5549..25e917f 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -162,7 +162,7 @@
int g;
struct fdtable *fdt = NULL;
- read_lock(&tasklist_lock);
+ rcu_read_lock();
buffer += sprintf(buffer,
"State:\t%s\n"
"SleepAVG:\t%lu%%\n"
@@ -174,14 +174,13 @@
"Gid:\t%d\t%d\t%d\t%d\n",
get_task_state(p),
(p->sleep_avg/1024)*100/(1020000000/1024),
- p->tgid,
- p->pid, pid_alive(p) ? p->group_leader->real_parent->tgid : 0,
- pid_alive(p) && p->ptrace ? p->parent->pid : 0,
+ p->tgid, p->pid,
+ pid_alive(p) ? rcu_dereference(p->real_parent)->tgid : 0,
+ pid_alive(p) && p->ptrace ? rcu_dereference(p->parent)->pid : 0,
p->uid, p->euid, p->suid, p->fsuid,
p->gid, p->egid, p->sgid, p->fsgid);
- read_unlock(&tasklist_lock);
+
task_lock(p);
- rcu_read_lock();
if (p->files)
fdt = files_fdtable(p->files);
buffer += sprintf(buffer,
@@ -244,6 +243,7 @@
static inline char * task_sig(struct task_struct *p, char *buffer)
{
+ unsigned long flags;
sigset_t pending, shpending, blocked, ignored, caught;
int num_threads = 0;
unsigned long qsize = 0;
@@ -255,10 +255,8 @@
sigemptyset(&ignored);
sigemptyset(&caught);
- /* Gather all the data with the appropriate locks held */
- read_lock(&tasklist_lock);
- if (p->sighand) {
- spin_lock_irq(&p->sighand->siglock);
+ rcu_read_lock();
+ if (lock_task_sighand(p, &flags)) {
pending = p->pending.signal;
shpending = p->signal->shared_pending.signal;
blocked = p->blocked;
@@ -266,9 +264,9 @@
num_threads = atomic_read(&p->signal->count);
qsize = atomic_read(&p->user->sigpending);
qlim = p->signal->rlim[RLIMIT_SIGPENDING].rlim_cur;
- spin_unlock_irq(&p->sighand->siglock);
+ unlock_task_sighand(p, &flags);
}
- read_unlock(&tasklist_lock);
+ rcu_read_unlock();
buffer += sprintf(buffer, "Threads:\t%d\n", num_threads);
buffer += sprintf(buffer, "SigQ:\t%lu/%lu\n", qsize, qlim);
@@ -322,7 +320,7 @@
sigset_t sigign, sigcatch;
char state;
int res;
- pid_t ppid, pgid = -1, sid = -1;
+ pid_t ppid = 0, pgid = -1, sid = -1;
int num_threads = 0;
struct mm_struct *mm;
unsigned long long start_time;
@@ -330,8 +328,8 @@
unsigned long min_flt = 0, maj_flt = 0;
cputime_t cutime, cstime, utime, stime;
unsigned long rsslim = 0;
- struct task_struct *t;
char tcomm[sizeof(task->comm)];
+ unsigned long flags;
state = *get_task_state(task);
vsize = eip = esp = 0;
@@ -349,15 +347,33 @@
cutime = cstime = utime = stime = cputime_zero;
mutex_lock(&tty_mutex);
- read_lock(&tasklist_lock);
- if (task->sighand) {
- spin_lock_irq(&task->sighand->siglock);
- num_threads = atomic_read(&task->signal->count);
+ rcu_read_lock();
+ if (lock_task_sighand(task, &flags)) {
+ struct signal_struct *sig = task->signal;
+ struct tty_struct *tty = sig->tty;
+
+ if (tty) {
+ /*
+ * sig->tty is not stable, but tty_mutex
+ * protects us from release_dev(tty)
+ */
+ barrier();
+ tty_pgrp = tty->pgrp;
+ tty_nr = new_encode_dev(tty_devnum(tty));
+ }
+
+ num_threads = atomic_read(&sig->count);
collect_sigign_sigcatch(task, &sigign, &sigcatch);
+ cmin_flt = sig->cmin_flt;
+ cmaj_flt = sig->cmaj_flt;
+ cutime = sig->cutime;
+ cstime = sig->cstime;
+ rsslim = sig->rlim[RLIMIT_RSS].rlim_cur;
+
/* add up live thread stats at the group level */
if (whole) {
- t = task;
+ struct task_struct *t = task;
do {
min_flt += t->min_flt;
maj_flt += t->maj_flt;
@@ -365,31 +381,20 @@
stime = cputime_add(stime, t->stime);
t = next_thread(t);
} while (t != task);
+
+ min_flt += sig->min_flt;
+ maj_flt += sig->maj_flt;
+ utime = cputime_add(utime, sig->utime);
+ stime = cputime_add(stime, sig->stime);
}
- spin_unlock_irq(&task->sighand->siglock);
- }
- if (task->signal) {
- if (task->signal->tty) {
- tty_pgrp = task->signal->tty->pgrp;
- tty_nr = new_encode_dev(tty_devnum(task->signal->tty));
- }
+ sid = sig->session;
pgid = process_group(task);
- sid = task->signal->session;
- cmin_flt = task->signal->cmin_flt;
- cmaj_flt = task->signal->cmaj_flt;
- cutime = task->signal->cutime;
- cstime = task->signal->cstime;
- rsslim = task->signal->rlim[RLIMIT_RSS].rlim_cur;
- if (whole) {
- min_flt += task->signal->min_flt;
- maj_flt += task->signal->maj_flt;
- utime = cputime_add(utime, task->signal->utime);
- stime = cputime_add(stime, task->signal->stime);
- }
+ ppid = rcu_dereference(task->real_parent)->tgid;
+
+ unlock_task_sighand(task, &flags);
}
- ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0;
- read_unlock(&tasklist_lock);
+ rcu_read_unlock();
mutex_unlock(&tty_mutex);
if (!whole || num_threads<2)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 89c20d9..82da55b 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -71,6 +71,7 @@
#include <linux/cpuset.h>
#include <linux/audit.h>
#include <linux/poll.h>
+#include <linux/nsproxy.h>
#include "internal.h"
/* NOTE:
@@ -83,262 +84,44 @@
* in /proc for a task before it execs a suid executable.
*/
-/*
- * For hysterical raisins we keep the same inumbers as in the old procfs.
- * Feel free to change the macro below - just keep the range distinct from
- * inumbers of the rest of procfs (currently those are in 0x0000--0xffff).
- * As soon as we'll get a separate superblock we will be able to forget
- * about magical ranges too.
- */
-
-#define fake_ino(pid,ino) (((pid)<<16)|(ino))
-
-enum pid_directory_inos {
- PROC_TGID_INO = 2,
- PROC_TGID_TASK,
- PROC_TGID_STATUS,
- PROC_TGID_MEM,
-#ifdef CONFIG_SECCOMP
- PROC_TGID_SECCOMP,
-#endif
- PROC_TGID_CWD,
- PROC_TGID_ROOT,
- PROC_TGID_EXE,
- PROC_TGID_FD,
- PROC_TGID_ENVIRON,
- PROC_TGID_AUXV,
- PROC_TGID_CMDLINE,
- PROC_TGID_STAT,
- PROC_TGID_STATM,
- PROC_TGID_MAPS,
- PROC_TGID_NUMA_MAPS,
- PROC_TGID_MOUNTS,
- PROC_TGID_MOUNTSTATS,
- PROC_TGID_WCHAN,
-#ifdef CONFIG_MMU
- PROC_TGID_SMAPS,
-#endif
-#ifdef CONFIG_SCHEDSTATS
- PROC_TGID_SCHEDSTAT,
-#endif
-#ifdef CONFIG_CPUSETS
- PROC_TGID_CPUSET,
-#endif
-#ifdef CONFIG_SECURITY
- PROC_TGID_ATTR,
- PROC_TGID_ATTR_CURRENT,
- PROC_TGID_ATTR_PREV,
- PROC_TGID_ATTR_EXEC,
- PROC_TGID_ATTR_FSCREATE,
- PROC_TGID_ATTR_KEYCREATE,
- PROC_TGID_ATTR_SOCKCREATE,
-#endif
-#ifdef CONFIG_AUDITSYSCALL
- PROC_TGID_LOGINUID,
-#endif
- PROC_TGID_OOM_SCORE,
- PROC_TGID_OOM_ADJUST,
- PROC_TID_INO,
- PROC_TID_STATUS,
- PROC_TID_MEM,
-#ifdef CONFIG_SECCOMP
- PROC_TID_SECCOMP,
-#endif
- PROC_TID_CWD,
- PROC_TID_ROOT,
- PROC_TID_EXE,
- PROC_TID_FD,
- PROC_TID_ENVIRON,
- PROC_TID_AUXV,
- PROC_TID_CMDLINE,
- PROC_TID_STAT,
- PROC_TID_STATM,
- PROC_TID_MAPS,
- PROC_TID_NUMA_MAPS,
- PROC_TID_MOUNTS,
- PROC_TID_MOUNTSTATS,
- PROC_TID_WCHAN,
-#ifdef CONFIG_MMU
- PROC_TID_SMAPS,
-#endif
-#ifdef CONFIG_SCHEDSTATS
- PROC_TID_SCHEDSTAT,
-#endif
-#ifdef CONFIG_CPUSETS
- PROC_TID_CPUSET,
-#endif
-#ifdef CONFIG_SECURITY
- PROC_TID_ATTR,
- PROC_TID_ATTR_CURRENT,
- PROC_TID_ATTR_PREV,
- PROC_TID_ATTR_EXEC,
- PROC_TID_ATTR_FSCREATE,
- PROC_TID_ATTR_KEYCREATE,
- PROC_TID_ATTR_SOCKCREATE,
-#endif
-#ifdef CONFIG_AUDITSYSCALL
- PROC_TID_LOGINUID,
-#endif
- PROC_TID_OOM_SCORE,
- PROC_TID_OOM_ADJUST,
-
- /* Add new entries before this */
- PROC_TID_FD_DIR = 0x8000, /* 0x8000-0xffff */
-};
/* Worst case buffer size needed for holding an integer. */
#define PROC_NUMBUF 10
struct pid_entry {
- int type;
int len;
char *name;
mode_t mode;
+ struct inode_operations *iop;
+ struct file_operations *fop;
+ union proc_op op;
};
-#define E(type,name,mode) {(type),sizeof(name)-1,(name),(mode)}
-
-static struct pid_entry tgid_base_stuff[] = {
- E(PROC_TGID_TASK, "task", S_IFDIR|S_IRUGO|S_IXUGO),
- E(PROC_TGID_FD, "fd", S_IFDIR|S_IRUSR|S_IXUSR),
- E(PROC_TGID_ENVIRON, "environ", S_IFREG|S_IRUSR),
- E(PROC_TGID_AUXV, "auxv", S_IFREG|S_IRUSR),
- E(PROC_TGID_STATUS, "status", S_IFREG|S_IRUGO),
- E(PROC_TGID_CMDLINE, "cmdline", S_IFREG|S_IRUGO),
- E(PROC_TGID_STAT, "stat", S_IFREG|S_IRUGO),
- E(PROC_TGID_STATM, "statm", S_IFREG|S_IRUGO),
- E(PROC_TGID_MAPS, "maps", S_IFREG|S_IRUGO),
-#ifdef CONFIG_NUMA
- E(PROC_TGID_NUMA_MAPS, "numa_maps", S_IFREG|S_IRUGO),
-#endif
- E(PROC_TGID_MEM, "mem", S_IFREG|S_IRUSR|S_IWUSR),
-#ifdef CONFIG_SECCOMP
- E(PROC_TGID_SECCOMP, "seccomp", S_IFREG|S_IRUSR|S_IWUSR),
-#endif
- E(PROC_TGID_CWD, "cwd", S_IFLNK|S_IRWXUGO),
- E(PROC_TGID_ROOT, "root", S_IFLNK|S_IRWXUGO),
- E(PROC_TGID_EXE, "exe", S_IFLNK|S_IRWXUGO),
- E(PROC_TGID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
- E(PROC_TGID_MOUNTSTATS, "mountstats", S_IFREG|S_IRUSR),
-#ifdef CONFIG_MMU
- E(PROC_TGID_SMAPS, "smaps", S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_SECURITY
- E(PROC_TGID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
-#endif
-#ifdef CONFIG_KALLSYMS
- E(PROC_TGID_WCHAN, "wchan", S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_SCHEDSTATS
- E(PROC_TGID_SCHEDSTAT, "schedstat", S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_CPUSETS
- E(PROC_TGID_CPUSET, "cpuset", S_IFREG|S_IRUGO),
-#endif
- E(PROC_TGID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO),
- E(PROC_TGID_OOM_ADJUST,"oom_adj", S_IFREG|S_IRUGO|S_IWUSR),
-#ifdef CONFIG_AUDITSYSCALL
- E(PROC_TGID_LOGINUID, "loginuid", S_IFREG|S_IWUSR|S_IRUGO),
-#endif
- {0,0,NULL,0}
-};
-static struct pid_entry tid_base_stuff[] = {
- E(PROC_TID_FD, "fd", S_IFDIR|S_IRUSR|S_IXUSR),
- E(PROC_TID_ENVIRON, "environ", S_IFREG|S_IRUSR),
- E(PROC_TID_AUXV, "auxv", S_IFREG|S_IRUSR),
- E(PROC_TID_STATUS, "status", S_IFREG|S_IRUGO),
- E(PROC_TID_CMDLINE, "cmdline", S_IFREG|S_IRUGO),
- E(PROC_TID_STAT, "stat", S_IFREG|S_IRUGO),
- E(PROC_TID_STATM, "statm", S_IFREG|S_IRUGO),
- E(PROC_TID_MAPS, "maps", S_IFREG|S_IRUGO),
-#ifdef CONFIG_NUMA
- E(PROC_TID_NUMA_MAPS, "numa_maps", S_IFREG|S_IRUGO),
-#endif
- E(PROC_TID_MEM, "mem", S_IFREG|S_IRUSR|S_IWUSR),
-#ifdef CONFIG_SECCOMP
- E(PROC_TID_SECCOMP, "seccomp", S_IFREG|S_IRUSR|S_IWUSR),
-#endif
- E(PROC_TID_CWD, "cwd", S_IFLNK|S_IRWXUGO),
- E(PROC_TID_ROOT, "root", S_IFLNK|S_IRWXUGO),
- E(PROC_TID_EXE, "exe", S_IFLNK|S_IRWXUGO),
- E(PROC_TID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
-#ifdef CONFIG_MMU
- E(PROC_TID_SMAPS, "smaps", S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_SECURITY
- E(PROC_TID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
-#endif
-#ifdef CONFIG_KALLSYMS
- E(PROC_TID_WCHAN, "wchan", S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_SCHEDSTATS
- E(PROC_TID_SCHEDSTAT, "schedstat",S_IFREG|S_IRUGO),
-#endif
-#ifdef CONFIG_CPUSETS
- E(PROC_TID_CPUSET, "cpuset", S_IFREG|S_IRUGO),
-#endif
- E(PROC_TID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO),
- E(PROC_TID_OOM_ADJUST, "oom_adj", S_IFREG|S_IRUGO|S_IWUSR),
-#ifdef CONFIG_AUDITSYSCALL
- E(PROC_TID_LOGINUID, "loginuid", S_IFREG|S_IWUSR|S_IRUGO),
-#endif
- {0,0,NULL,0}
-};
-
-#ifdef CONFIG_SECURITY
-static struct pid_entry tgid_attr_stuff[] = {
- E(PROC_TGID_ATTR_CURRENT, "current", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TGID_ATTR_PREV, "prev", S_IFREG|S_IRUGO),
- E(PROC_TGID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TGID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TGID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TGID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO),
- {0,0,NULL,0}
-};
-static struct pid_entry tid_attr_stuff[] = {
- E(PROC_TID_ATTR_CURRENT, "current", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TID_ATTR_PREV, "prev", S_IFREG|S_IRUGO),
- E(PROC_TID_ATTR_EXEC, "exec", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TID_ATTR_FSCREATE, "fscreate", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TID_ATTR_KEYCREATE, "keycreate", S_IFREG|S_IRUGO|S_IWUGO),
- E(PROC_TID_ATTR_SOCKCREATE, "sockcreate", S_IFREG|S_IRUGO|S_IWUGO),
- {0,0,NULL,0}
-};
-#endif
-
-#undef E
-
-static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
-{
- struct task_struct *task = get_proc_task(inode);
- struct files_struct *files = NULL;
- struct file *file;
- int fd = proc_fd(inode);
-
- if (task) {
- files = get_files_struct(task);
- put_task_struct(task);
- }
- if (files) {
- /*
- * We are not taking a ref to the file structure, so we must
- * hold ->file_lock.
- */
- spin_lock(&files->file_lock);
- file = fcheck_files(files, fd);
- if (file) {
- *mnt = mntget(file->f_vfsmnt);
- *dentry = dget(file->f_dentry);
- spin_unlock(&files->file_lock);
- put_files_struct(files);
- return 0;
- }
- spin_unlock(&files->file_lock);
- put_files_struct(files);
- }
- return -ENOENT;
+#define NOD(NAME, MODE, IOP, FOP, OP) { \
+ .len = sizeof(NAME) - 1, \
+ .name = (NAME), \
+ .mode = MODE, \
+ .iop = IOP, \
+ .fop = FOP, \
+ .op = OP, \
}
+#define DIR(NAME, MODE, OTYPE) \
+ NOD(NAME, (S_IFDIR|(MODE)), \
+ &proc_##OTYPE##_inode_operations, &proc_##OTYPE##_operations, \
+ {} )
+#define LNK(NAME, OTYPE) \
+ NOD(NAME, (S_IFLNK|S_IRWXUGO), \
+ &proc_pid_link_inode_operations, NULL, \
+ { .proc_get_link = &proc_##OTYPE##_link } )
+#define REG(NAME, MODE, OTYPE) \
+ NOD(NAME, (S_IFREG|(MODE)), NULL, \
+ &proc_##OTYPE##_operations, {})
+#define INF(NAME, MODE, OTYPE) \
+ NOD(NAME, (S_IFREG|(MODE)), \
+ NULL, &proc_info_file_operations, \
+ { .proc_read = &proc_##OTYPE } )
+
static struct fs_struct *get_fs_struct(struct task_struct *task)
{
struct fs_struct *fs;
@@ -587,7 +370,7 @@
if (task) {
task_lock(task);
- namespace = task->namespace;
+ namespace = task->nsproxy->namespace;
if (namespace)
get_namespace(namespace);
task_unlock(task);
@@ -658,7 +441,7 @@
if (task) {
task_lock(task);
- namespace = task->namespace;
+ namespace = task->nsproxy->namespace;
if (namespace)
get_namespace(namespace);
task_unlock(task);
@@ -1137,143 +920,6 @@
.setattr = proc_setattr,
};
-static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir)
-{
- struct dentry *dentry = filp->f_dentry;
- struct inode *inode = dentry->d_inode;
- struct task_struct *p = get_proc_task(inode);
- unsigned int fd, tid, ino;
- int retval;
- char buf[PROC_NUMBUF];
- struct files_struct * files;
- struct fdtable *fdt;
-
- retval = -ENOENT;
- if (!p)
- goto out_no_task;
- retval = 0;
- tid = p->pid;
-
- fd = filp->f_pos;
- switch (fd) {
- case 0:
- if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
- goto out;
- filp->f_pos++;
- case 1:
- ino = parent_ino(dentry);
- if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0)
- goto out;
- filp->f_pos++;
- default:
- files = get_files_struct(p);
- if (!files)
- goto out;
- rcu_read_lock();
- fdt = files_fdtable(files);
- for (fd = filp->f_pos-2;
- fd < fdt->max_fds;
- fd++, filp->f_pos++) {
- unsigned int i,j;
-
- if (!fcheck_files(files, fd))
- continue;
- rcu_read_unlock();
-
- j = PROC_NUMBUF;
- i = fd;
- do {
- j--;
- buf[j] = '0' + (i % 10);
- i /= 10;
- } while (i);
-
- ino = fake_ino(tid, PROC_TID_FD_DIR + fd);
- if (filldir(dirent, buf+j, PROC_NUMBUF-j, fd+2, ino, DT_LNK) < 0) {
- rcu_read_lock();
- break;
- }
- rcu_read_lock();
- }
- rcu_read_unlock();
- put_files_struct(files);
- }
-out:
- put_task_struct(p);
-out_no_task:
- return retval;
-}
-
-static int proc_pident_readdir(struct file *filp,
- void *dirent, filldir_t filldir,
- struct pid_entry *ents, unsigned int nents)
-{
- int i;
- int pid;
- struct dentry *dentry = filp->f_dentry;
- struct inode *inode = dentry->d_inode;
- struct task_struct *task = get_proc_task(inode);
- struct pid_entry *p;
- ino_t ino;
- int ret;
-
- ret = -ENOENT;
- if (!task)
- goto out;
-
- ret = 0;
- pid = task->pid;
- put_task_struct(task);
- i = filp->f_pos;
- switch (i) {
- case 0:
- ino = inode->i_ino;
- if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
- goto out;
- i++;
- filp->f_pos++;
- /* fall through */
- case 1:
- ino = parent_ino(dentry);
- if (filldir(dirent, "..", 2, i, ino, DT_DIR) < 0)
- goto out;
- i++;
- filp->f_pos++;
- /* fall through */
- default:
- i -= 2;
- if (i >= nents) {
- ret = 1;
- goto out;
- }
- p = ents + i;
- while (p->name) {
- if (filldir(dirent, p->name, p->len, filp->f_pos,
- fake_ino(pid, p->type), p->mode >> 12) < 0)
- goto out;
- filp->f_pos++;
- p++;
- }
- }
-
- ret = 1;
-out:
- return ret;
-}
-
-static int proc_tgid_base_readdir(struct file * filp,
- void * dirent, filldir_t filldir)
-{
- return proc_pident_readdir(filp,dirent,filldir,
- tgid_base_stuff,ARRAY_SIZE(tgid_base_stuff));
-}
-
-static int proc_tid_base_readdir(struct file * filp,
- void * dirent, filldir_t filldir)
-{
- return proc_pident_readdir(filp,dirent,filldir,
- tid_base_stuff,ARRAY_SIZE(tid_base_stuff));
-}
/* building an inode */
@@ -1293,13 +939,13 @@
}
-static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task, int ino)
+static struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *task)
{
struct inode * inode;
struct proc_inode *ei;
/* We need a new inode */
-
+
inode = new_inode(sb);
if (!inode)
goto out;
@@ -1307,13 +953,12 @@
/* Common stuff */
ei = PROC_I(inode);
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
- inode->i_ino = fake_ino(task->pid, ino);
inode->i_op = &proc_def_inode_operations;
/*
* grab the reference to task.
*/
- ei->pid = get_pid(task->pids[PIDTYPE_PID].pid);
+ ei->pid = get_task_pid(task, PIDTYPE_PID);
if (!ei->pid)
goto out_unlock;
@@ -1333,6 +978,27 @@
return NULL;
}
+static int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+{
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *task;
+ generic_fillattr(inode, stat);
+
+ rcu_read_lock();
+ stat->uid = 0;
+ stat->gid = 0;
+ task = pid_task(proc_pid(inode), PIDTYPE_PID);
+ if (task) {
+ if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+ task_dumpable(task)) {
+ stat->uid = task->euid;
+ stat->gid = task->egid;
+ }
+ }
+ rcu_read_unlock();
+ return 0;
+}
+
/* dentry stuff */
/*
@@ -1372,25 +1038,130 @@
return 0;
}
-static int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+static int pid_delete_dentry(struct dentry * dentry)
{
- struct inode *inode = dentry->d_inode;
- struct task_struct *task;
- generic_fillattr(inode, stat);
+ /* Is the task we represent dead?
+ * If so, then don't put the dentry on the lru list,
+ * kill it immediately.
+ */
+ return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first;
+}
- rcu_read_lock();
- stat->uid = 0;
- stat->gid = 0;
- task = pid_task(proc_pid(inode), PIDTYPE_PID);
- if (task) {
- if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
- task_dumpable(task)) {
- stat->uid = task->euid;
- stat->gid = task->egid;
+static struct dentry_operations pid_dentry_operations =
+{
+ .d_revalidate = pid_revalidate,
+ .d_delete = pid_delete_dentry,
+};
+
+/* Lookups */
+
+typedef struct dentry *instantiate_t(struct inode *, struct dentry *, struct task_struct *, void *);
+
+/*
+ * Fill a directory entry.
+ *
+ * If possible create the dcache entry and derive our inode number and
+ * file type from dcache entry.
+ *
+ * Since all of the proc inode numbers are dynamically generated, the inode
+ * numbers do not exist until the inode is cache. This means creating the
+ * the dcache entry in readdir is necessary to keep the inode numbers
+ * reported by readdir in sync with the inode numbers reported
+ * by stat.
+ */
+static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ char *name, int len,
+ instantiate_t instantiate, struct task_struct *task, void *ptr)
+{
+ struct dentry *child, *dir = filp->f_dentry;
+ struct inode *inode;
+ struct qstr qname;
+ ino_t ino = 0;
+ unsigned type = DT_UNKNOWN;
+
+ qname.name = name;
+ qname.len = len;
+ qname.hash = full_name_hash(name, len);
+
+ child = d_lookup(dir, &qname);
+ if (!child) {
+ struct dentry *new;
+ new = d_alloc(dir, &qname);
+ if (new) {
+ child = instantiate(dir->d_inode, new, task, ptr);
+ if (child)
+ dput(new);
+ else
+ child = new;
}
}
- rcu_read_unlock();
- return 0;
+ if (!child || IS_ERR(child) || !child->d_inode)
+ goto end_instantiate;
+ inode = child->d_inode;
+ if (inode) {
+ ino = inode->i_ino;
+ type = inode->i_mode >> 12;
+ }
+ dput(child);
+end_instantiate:
+ if (!ino)
+ ino = find_inode_number(dir, &qname);
+ if (!ino)
+ ino = 1;
+ return filldir(dirent, name, len, filp->f_pos, ino, type);
+}
+
+static unsigned name_to_int(struct dentry *dentry)
+{
+ const char *name = dentry->d_name.name;
+ int len = dentry->d_name.len;
+ unsigned n = 0;
+
+ if (len > 1 && *name == '0')
+ goto out;
+ while (len-- > 0) {
+ unsigned c = *name++ - '0';
+ if (c > 9)
+ goto out;
+ if (n >= (~0U-9)/10)
+ goto out;
+ n *= 10;
+ n += c;
+ }
+ return n;
+out:
+ return ~0U;
+}
+
+static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
+{
+ struct task_struct *task = get_proc_task(inode);
+ struct files_struct *files = NULL;
+ struct file *file;
+ int fd = proc_fd(inode);
+
+ if (task) {
+ files = get_files_struct(task);
+ put_task_struct(task);
+ }
+ if (files) {
+ /*
+ * We are not taking a ref to the file structure, so we must
+ * hold ->file_lock.
+ */
+ spin_lock(&files->file_lock);
+ file = fcheck_files(files, fd);
+ if (file) {
+ *mnt = mntget(file->f_vfsmnt);
+ *dentry = dget(file->f_dentry);
+ spin_unlock(&files->file_lock);
+ put_files_struct(files);
+ return 0;
+ }
+ spin_unlock(&files->file_lock);
+ put_files_struct(files);
+ }
+ return -ENOENT;
}
static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
@@ -1428,75 +1199,30 @@
return 0;
}
-static int pid_delete_dentry(struct dentry * dentry)
-{
- /* Is the task we represent dead?
- * If so, then don't put the dentry on the lru list,
- * kill it immediately.
- */
- return !proc_pid(dentry->d_inode)->tasks[PIDTYPE_PID].first;
-}
-
static struct dentry_operations tid_fd_dentry_operations =
{
.d_revalidate = tid_fd_revalidate,
.d_delete = pid_delete_dentry,
};
-static struct dentry_operations pid_dentry_operations =
+static struct dentry *proc_fd_instantiate(struct inode *dir,
+ struct dentry *dentry, struct task_struct *task, void *ptr)
{
- .d_revalidate = pid_revalidate,
- .d_delete = pid_delete_dentry,
-};
+ unsigned fd = *(unsigned *)ptr;
+ struct file *file;
+ struct files_struct *files;
+ struct inode *inode;
+ struct proc_inode *ei;
+ struct dentry *error = ERR_PTR(-ENOENT);
-/* Lookups */
-
-static unsigned name_to_int(struct dentry *dentry)
-{
- const char *name = dentry->d_name.name;
- int len = dentry->d_name.len;
- unsigned n = 0;
-
- if (len > 1 && *name == '0')
- goto out;
- while (len-- > 0) {
- unsigned c = *name++ - '0';
- if (c > 9)
- goto out;
- if (n >= (~0U-9)/10)
- goto out;
- n *= 10;
- n += c;
- }
- return n;
-out:
- return ~0U;
-}
-
-/* SMP-safe */
-static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
-{
- struct task_struct *task = get_proc_task(dir);
- unsigned fd = name_to_int(dentry);
- struct dentry *result = ERR_PTR(-ENOENT);
- struct file * file;
- struct files_struct * files;
- struct inode *inode;
- struct proc_inode *ei;
-
- if (!task)
- goto out_no_task;
- if (fd == ~0U)
- goto out;
-
- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_FD_DIR+fd);
+ inode = proc_pid_make_inode(dir->i_sb, task);
if (!inode)
goto out;
ei = PROC_I(inode);
ei->fd = fd;
files = get_files_struct(task);
if (!files)
- goto out_unlock;
+ goto out_iput;
inode->i_mode = S_IFLNK;
/*
@@ -1506,13 +1232,14 @@
spin_lock(&files->file_lock);
file = fcheck_files(files, fd);
if (!file)
- goto out_unlock2;
+ goto out_unlock;
if (file->f_mode & 1)
inode->i_mode |= S_IRUSR | S_IXUSR;
if (file->f_mode & 2)
inode->i_mode |= S_IWUSR | S_IXUSR;
spin_unlock(&files->file_lock);
put_files_struct(files);
+
inode->i_op = &proc_pid_link_inode_operations;
inode->i_size = 64;
ei->op.proc_get_link = proc_fd_link;
@@ -1520,34 +1247,106 @@
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
if (tid_fd_revalidate(dentry, NULL))
- result = NULL;
-out:
- put_task_struct(task);
-out_no_task:
- return result;
+ error = NULL;
-out_unlock2:
+ out:
+ return error;
+out_unlock:
spin_unlock(&files->file_lock);
put_files_struct(files);
-out_unlock:
+out_iput:
iput(inode);
goto out;
}
-static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir);
-static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd);
-static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
+static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
+{
+ struct task_struct *task = get_proc_task(dir);
+ unsigned fd = name_to_int(dentry);
+ struct dentry *result = ERR_PTR(-ENOENT);
+
+ if (!task)
+ goto out_no_task;
+ if (fd == ~0U)
+ goto out;
+
+ result = proc_fd_instantiate(dir, dentry, task, &fd);
+out:
+ put_task_struct(task);
+out_no_task:
+ return result;
+}
+
+static int proc_fd_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct task_struct *task, int fd)
+{
+ char name[PROC_NUMBUF];
+ int len = snprintf(name, sizeof(name), "%d", fd);
+ return proc_fill_cache(filp, dirent, filldir, name, len,
+ proc_fd_instantiate, task, &fd);
+}
+
+static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir)
+{
+ struct dentry *dentry = filp->f_dentry;
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *p = get_proc_task(inode);
+ unsigned int fd, tid, ino;
+ int retval;
+ struct files_struct * files;
+ struct fdtable *fdt;
+
+ retval = -ENOENT;
+ if (!p)
+ goto out_no_task;
+ retval = 0;
+ tid = p->pid;
+
+ fd = filp->f_pos;
+ switch (fd) {
+ case 0:
+ if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
+ goto out;
+ filp->f_pos++;
+ case 1:
+ ino = parent_ino(dentry);
+ if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0)
+ goto out;
+ filp->f_pos++;
+ default:
+ files = get_files_struct(p);
+ if (!files)
+ goto out;
+ rcu_read_lock();
+ fdt = files_fdtable(files);
+ for (fd = filp->f_pos-2;
+ fd < fdt->max_fds;
+ fd++, filp->f_pos++) {
+
+ if (!fcheck_files(files, fd))
+ continue;
+ rcu_read_unlock();
+
+ if (proc_fd_fill_cache(filp, dirent, filldir, p, fd) < 0) {
+ rcu_read_lock();
+ break;
+ }
+ rcu_read_lock();
+ }
+ rcu_read_unlock();
+ put_files_struct(files);
+ }
+out:
+ put_task_struct(p);
+out_no_task:
+ return retval;
+}
static struct file_operations proc_fd_operations = {
.read = generic_read_dir,
.readdir = proc_readfd,
};
-static struct file_operations proc_task_operations = {
- .read = generic_read_dir,
- .readdir = proc_task_readdir,
-};
-
/*
* proc directories can do almost nothing..
*/
@@ -1556,11 +1355,137 @@
.setattr = proc_setattr,
};
-static struct inode_operations proc_task_inode_operations = {
- .lookup = proc_task_lookup,
- .getattr = proc_task_getattr,
- .setattr = proc_setattr,
-};
+static struct dentry *proc_pident_instantiate(struct inode *dir,
+ struct dentry *dentry, struct task_struct *task, void *ptr)
+{
+ struct pid_entry *p = ptr;
+ struct inode *inode;
+ struct proc_inode *ei;
+ struct dentry *error = ERR_PTR(-EINVAL);
+
+ inode = proc_pid_make_inode(dir->i_sb, task);
+ if (!inode)
+ goto out;
+
+ ei = PROC_I(inode);
+ inode->i_mode = p->mode;
+ if (S_ISDIR(inode->i_mode))
+ inode->i_nlink = 2; /* Use getattr to fix if necessary */
+ if (p->iop)
+ inode->i_op = p->iop;
+ if (p->fop)
+ inode->i_fop = p->fop;
+ ei->op = p->op;
+ dentry->d_op = &pid_dentry_operations;
+ d_add(dentry, inode);
+ /* Close the race of the process dying before we return the dentry */
+ if (pid_revalidate(dentry, NULL))
+ error = NULL;
+out:
+ return error;
+}
+
+static struct dentry *proc_pident_lookup(struct inode *dir,
+ struct dentry *dentry,
+ struct pid_entry *ents,
+ unsigned int nents)
+{
+ struct inode *inode;
+ struct dentry *error;
+ struct task_struct *task = get_proc_task(dir);
+ struct pid_entry *p, *last;
+
+ error = ERR_PTR(-ENOENT);
+ inode = NULL;
+
+ if (!task)
+ goto out_no_task;
+
+ /*
+ * Yes, it does not scale. And it should not. Don't add
+ * new entries into /proc/<tgid>/ without very good reasons.
+ */
+ last = &ents[nents - 1];
+ for (p = ents; p <= last; p++) {
+ if (p->len != dentry->d_name.len)
+ continue;
+ if (!memcmp(dentry->d_name.name, p->name, p->len))
+ break;
+ }
+ if (p > last)
+ goto out;
+
+ error = proc_pident_instantiate(dir, dentry, task, p);
+out:
+ put_task_struct(task);
+out_no_task:
+ return error;
+}
+
+static int proc_pident_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct task_struct *task, struct pid_entry *p)
+{
+ return proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+ proc_pident_instantiate, task, p);
+}
+
+static int proc_pident_readdir(struct file *filp,
+ void *dirent, filldir_t filldir,
+ struct pid_entry *ents, unsigned int nents)
+{
+ int i;
+ int pid;
+ struct dentry *dentry = filp->f_dentry;
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *task = get_proc_task(inode);
+ struct pid_entry *p, *last;
+ ino_t ino;
+ int ret;
+
+ ret = -ENOENT;
+ if (!task)
+ goto out_no_task;
+
+ ret = 0;
+ pid = task->pid;
+ i = filp->f_pos;
+ switch (i) {
+ case 0:
+ ino = inode->i_ino;
+ if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
+ goto out;
+ i++;
+ filp->f_pos++;
+ /* fall through */
+ case 1:
+ ino = parent_ino(dentry);
+ if (filldir(dirent, "..", 2, i, ino, DT_DIR) < 0)
+ goto out;
+ i++;
+ filp->f_pos++;
+ /* fall through */
+ default:
+ i -= 2;
+ if (i >= nents) {
+ ret = 1;
+ goto out;
+ }
+ p = ents + i;
+ last = &ents[nents - 1];
+ while (p <= last) {
+ if (proc_pident_fill_cache(filp, dirent, filldir, task, p) < 0)
+ goto out;
+ filp->f_pos++;
+ p++;
+ }
+ }
+
+ ret = 1;
+out:
+ put_task_struct(task);
+out_no_task:
+ return ret;
+}
#ifdef CONFIG_SECURITY
static ssize_t proc_pid_attr_read(struct file * file, char __user * buf,
@@ -1581,8 +1506,8 @@
if (!(page = __get_free_page(GFP_KERNEL)))
goto out;
- length = security_getprocattr(task,
- (char*)file->f_dentry->d_name.name,
+ length = security_getprocattr(task,
+ (char*)file->f_dentry->d_name.name,
(void*)page, count);
if (length >= 0)
length = simple_read_from_buffer(buf, count, ppos, (char *)page, length);
@@ -1595,17 +1520,17 @@
static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf,
size_t count, loff_t *ppos)
-{
+{
struct inode * inode = file->f_dentry->d_inode;
- char *page;
- ssize_t length;
+ char *page;
+ ssize_t length;
struct task_struct *task = get_proc_task(inode);
length = -ESRCH;
if (!task)
goto out_no_task;
- if (count > PAGE_SIZE)
- count = PAGE_SIZE;
+ if (count > PAGE_SIZE)
+ count = PAGE_SIZE;
/* No partial writes. */
length = -EINVAL;
@@ -1613,16 +1538,16 @@
goto out;
length = -ENOMEM;
- page = (char*)__get_free_page(GFP_USER);
- if (!page)
+ page = (char*)__get_free_page(GFP_USER);
+ if (!page)
goto out;
- length = -EFAULT;
- if (copy_from_user(page, buf, count))
+ length = -EFAULT;
+ if (copy_from_user(page, buf, count))
goto out_free;
- length = security_setprocattr(task,
- (char*)file->f_dentry->d_name.name,
+ length = security_setprocattr(task,
+ (char*)file->f_dentry->d_name.name,
(void*)page, count);
out_free:
free_page((unsigned long) page);
@@ -1630,306 +1555,47 @@
put_task_struct(task);
out_no_task:
return length;
-}
+}
static struct file_operations proc_pid_attr_operations = {
.read = proc_pid_attr_read,
.write = proc_pid_attr_write,
};
-static struct file_operations proc_tid_attr_operations;
-static struct inode_operations proc_tid_attr_inode_operations;
-static struct file_operations proc_tgid_attr_operations;
-static struct inode_operations proc_tgid_attr_inode_operations;
-#endif
-
-/* SMP-safe */
-static struct dentry *proc_pident_lookup(struct inode *dir,
- struct dentry *dentry,
- struct pid_entry *ents)
-{
- struct inode *inode;
- struct dentry *error;
- struct task_struct *task = get_proc_task(dir);
- struct pid_entry *p;
- struct proc_inode *ei;
-
- error = ERR_PTR(-ENOENT);
- inode = NULL;
-
- if (!task)
- goto out_no_task;
-
- for (p = ents; p->name; p++) {
- if (p->len != dentry->d_name.len)
- continue;
- if (!memcmp(dentry->d_name.name, p->name, p->len))
- break;
- }
- if (!p->name)
- goto out;
-
- error = ERR_PTR(-EINVAL);
- inode = proc_pid_make_inode(dir->i_sb, task, p->type);
- if (!inode)
- goto out;
-
- ei = PROC_I(inode);
- inode->i_mode = p->mode;
- /*
- * Yes, it does not scale. And it should not. Don't add
- * new entries into /proc/<tgid>/ without very good reasons.
- */
- switch(p->type) {
- case PROC_TGID_TASK:
- inode->i_nlink = 2;
- inode->i_op = &proc_task_inode_operations;
- inode->i_fop = &proc_task_operations;
- break;
- case PROC_TID_FD:
- case PROC_TGID_FD:
- inode->i_nlink = 2;
- inode->i_op = &proc_fd_inode_operations;
- inode->i_fop = &proc_fd_operations;
- break;
- case PROC_TID_EXE:
- case PROC_TGID_EXE:
- inode->i_op = &proc_pid_link_inode_operations;
- ei->op.proc_get_link = proc_exe_link;
- break;
- case PROC_TID_CWD:
- case PROC_TGID_CWD:
- inode->i_op = &proc_pid_link_inode_operations;
- ei->op.proc_get_link = proc_cwd_link;
- break;
- case PROC_TID_ROOT:
- case PROC_TGID_ROOT:
- inode->i_op = &proc_pid_link_inode_operations;
- ei->op.proc_get_link = proc_root_link;
- break;
- case PROC_TID_ENVIRON:
- case PROC_TGID_ENVIRON:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_environ;
- break;
- case PROC_TID_AUXV:
- case PROC_TGID_AUXV:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_auxv;
- break;
- case PROC_TID_STATUS:
- case PROC_TGID_STATUS:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_status;
- break;
- case PROC_TID_STAT:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_tid_stat;
- break;
- case PROC_TGID_STAT:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_tgid_stat;
- break;
- case PROC_TID_CMDLINE:
- case PROC_TGID_CMDLINE:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_cmdline;
- break;
- case PROC_TID_STATM:
- case PROC_TGID_STATM:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_statm;
- break;
- case PROC_TID_MAPS:
- case PROC_TGID_MAPS:
- inode->i_fop = &proc_maps_operations;
- break;
-#ifdef CONFIG_NUMA
- case PROC_TID_NUMA_MAPS:
- case PROC_TGID_NUMA_MAPS:
- inode->i_fop = &proc_numa_maps_operations;
- break;
-#endif
- case PROC_TID_MEM:
- case PROC_TGID_MEM:
- inode->i_fop = &proc_mem_operations;
- break;
-#ifdef CONFIG_SECCOMP
- case PROC_TID_SECCOMP:
- case PROC_TGID_SECCOMP:
- inode->i_fop = &proc_seccomp_operations;
- break;
-#endif /* CONFIG_SECCOMP */
- case PROC_TID_MOUNTS:
- case PROC_TGID_MOUNTS:
- inode->i_fop = &proc_mounts_operations;
- break;
-#ifdef CONFIG_MMU
- case PROC_TID_SMAPS:
- case PROC_TGID_SMAPS:
- inode->i_fop = &proc_smaps_operations;
- break;
-#endif
- case PROC_TID_MOUNTSTATS:
- case PROC_TGID_MOUNTSTATS:
- inode->i_fop = &proc_mountstats_operations;
- break;
-#ifdef CONFIG_SECURITY
- case PROC_TID_ATTR:
- inode->i_nlink = 2;
- inode->i_op = &proc_tid_attr_inode_operations;
- inode->i_fop = &proc_tid_attr_operations;
- break;
- case PROC_TGID_ATTR:
- inode->i_nlink = 2;
- inode->i_op = &proc_tgid_attr_inode_operations;
- inode->i_fop = &proc_tgid_attr_operations;
- break;
- case PROC_TID_ATTR_CURRENT:
- case PROC_TGID_ATTR_CURRENT:
- case PROC_TID_ATTR_PREV:
- case PROC_TGID_ATTR_PREV:
- case PROC_TID_ATTR_EXEC:
- case PROC_TGID_ATTR_EXEC:
- case PROC_TID_ATTR_FSCREATE:
- case PROC_TGID_ATTR_FSCREATE:
- case PROC_TID_ATTR_KEYCREATE:
- case PROC_TGID_ATTR_KEYCREATE:
- case PROC_TID_ATTR_SOCKCREATE:
- case PROC_TGID_ATTR_SOCKCREATE:
- inode->i_fop = &proc_pid_attr_operations;
- break;
-#endif
-#ifdef CONFIG_KALLSYMS
- case PROC_TID_WCHAN:
- case PROC_TGID_WCHAN:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_wchan;
- break;
-#endif
-#ifdef CONFIG_SCHEDSTATS
- case PROC_TID_SCHEDSTAT:
- case PROC_TGID_SCHEDSTAT:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_pid_schedstat;
- break;
-#endif
-#ifdef CONFIG_CPUSETS
- case PROC_TID_CPUSET:
- case PROC_TGID_CPUSET:
- inode->i_fop = &proc_cpuset_operations;
- break;
-#endif
- case PROC_TID_OOM_SCORE:
- case PROC_TGID_OOM_SCORE:
- inode->i_fop = &proc_info_file_operations;
- ei->op.proc_read = proc_oom_score;
- break;
- case PROC_TID_OOM_ADJUST:
- case PROC_TGID_OOM_ADJUST:
- inode->i_fop = &proc_oom_adjust_operations;
- break;
-#ifdef CONFIG_AUDITSYSCALL
- case PROC_TID_LOGINUID:
- case PROC_TGID_LOGINUID:
- inode->i_fop = &proc_loginuid_operations;
- break;
-#endif
- default:
- printk("procfs: impossible type (%d)",p->type);
- iput(inode);
- error = ERR_PTR(-EINVAL);
- goto out;
- }
- dentry->d_op = &pid_dentry_operations;
- d_add(dentry, inode);
- /* Close the race of the process dying before we return the dentry */
- if (pid_revalidate(dentry, NULL))
- error = NULL;
-out:
- put_task_struct(task);
-out_no_task:
- return error;
-}
-
-static struct dentry *proc_tgid_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
- return proc_pident_lookup(dir, dentry, tgid_base_stuff);
-}
-
-static struct dentry *proc_tid_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
- return proc_pident_lookup(dir, dentry, tid_base_stuff);
-}
-
-static struct file_operations proc_tgid_base_operations = {
- .read = generic_read_dir,
- .readdir = proc_tgid_base_readdir,
+static struct pid_entry attr_dir_stuff[] = {
+ REG("current", S_IRUGO|S_IWUGO, pid_attr),
+ REG("prev", S_IRUGO, pid_attr),
+ REG("exec", S_IRUGO|S_IWUGO, pid_attr),
+ REG("fscreate", S_IRUGO|S_IWUGO, pid_attr),
+ REG("keycreate", S_IRUGO|S_IWUGO, pid_attr),
+ REG("sockcreate", S_IRUGO|S_IWUGO, pid_attr),
};
-static struct file_operations proc_tid_base_operations = {
- .read = generic_read_dir,
- .readdir = proc_tid_base_readdir,
-};
-
-static struct inode_operations proc_tgid_base_inode_operations = {
- .lookup = proc_tgid_base_lookup,
- .getattr = pid_getattr,
- .setattr = proc_setattr,
-};
-
-static struct inode_operations proc_tid_base_inode_operations = {
- .lookup = proc_tid_base_lookup,
- .getattr = pid_getattr,
- .setattr = proc_setattr,
-};
-
-#ifdef CONFIG_SECURITY
-static int proc_tgid_attr_readdir(struct file * filp,
+static int proc_attr_dir_readdir(struct file * filp,
void * dirent, filldir_t filldir)
{
return proc_pident_readdir(filp,dirent,filldir,
- tgid_attr_stuff,ARRAY_SIZE(tgid_attr_stuff));
+ attr_dir_stuff,ARRAY_SIZE(attr_dir_stuff));
}
-static int proc_tid_attr_readdir(struct file * filp,
- void * dirent, filldir_t filldir)
-{
- return proc_pident_readdir(filp,dirent,filldir,
- tid_attr_stuff,ARRAY_SIZE(tid_attr_stuff));
-}
-
-static struct file_operations proc_tgid_attr_operations = {
+static struct file_operations proc_attr_dir_operations = {
.read = generic_read_dir,
- .readdir = proc_tgid_attr_readdir,
+ .readdir = proc_attr_dir_readdir,
};
-static struct file_operations proc_tid_attr_operations = {
- .read = generic_read_dir,
- .readdir = proc_tid_attr_readdir,
-};
-
-static struct dentry *proc_tgid_attr_lookup(struct inode *dir,
+static struct dentry *proc_attr_dir_lookup(struct inode *dir,
struct dentry *dentry, struct nameidata *nd)
{
- return proc_pident_lookup(dir, dentry, tgid_attr_stuff);
+ return proc_pident_lookup(dir, dentry,
+ attr_dir_stuff, ARRAY_SIZE(attr_dir_stuff));
}
-static struct dentry *proc_tid_attr_lookup(struct inode *dir,
- struct dentry *dentry, struct nameidata *nd)
-{
- return proc_pident_lookup(dir, dentry, tid_attr_stuff);
-}
-
-static struct inode_operations proc_tgid_attr_inode_operations = {
- .lookup = proc_tgid_attr_lookup,
+static struct inode_operations proc_attr_dir_inode_operations = {
+ .lookup = proc_attr_dir_lookup,
.getattr = pid_getattr,
.setattr = proc_setattr,
};
-static struct inode_operations proc_tid_attr_inode_operations = {
- .lookup = proc_tid_attr_lookup,
- .getattr = pid_getattr,
- .setattr = proc_setattr,
-};
#endif
/*
@@ -1948,13 +1614,205 @@
char tmp[PROC_NUMBUF];
sprintf(tmp, "%d", current->tgid);
return ERR_PTR(vfs_follow_link(nd,tmp));
-}
+}
static struct inode_operations proc_self_inode_operations = {
.readlink = proc_self_readlink,
.follow_link = proc_self_follow_link,
};
+/*
+ * proc base
+ *
+ * These are the directory entries in the root directory of /proc
+ * that properly belong to the /proc filesystem, as they describe
+ * describe something that is process related.
+ */
+static struct pid_entry proc_base_stuff[] = {
+ NOD("self", S_IFLNK|S_IRWXUGO,
+ &proc_self_inode_operations, NULL, {}),
+};
+
+/*
+ * Exceptional case: normally we are not allowed to unhash a busy
+ * directory. In this case, however, we can do it - no aliasing problems
+ * due to the way we treat inodes.
+ */
+static int proc_base_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+ struct inode *inode = dentry->d_inode;
+ struct task_struct *task = get_proc_task(inode);
+ if (task) {
+ put_task_struct(task);
+ return 1;
+ }
+ d_drop(dentry);
+ return 0;
+}
+
+static struct dentry_operations proc_base_dentry_operations =
+{
+ .d_revalidate = proc_base_revalidate,
+ .d_delete = pid_delete_dentry,
+};
+
+static struct dentry *proc_base_instantiate(struct inode *dir,
+ struct dentry *dentry, struct task_struct *task, void *ptr)
+{
+ struct pid_entry *p = ptr;
+ struct inode *inode;
+ struct proc_inode *ei;
+ struct dentry *error = ERR_PTR(-EINVAL);
+
+ /* Allocate the inode */
+ error = ERR_PTR(-ENOMEM);
+ inode = new_inode(dir->i_sb);
+ if (!inode)
+ goto out;
+
+ /* Initialize the inode */
+ ei = PROC_I(inode);
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+
+ /*
+ * grab the reference to the task.
+ */
+ ei->pid = get_task_pid(task, PIDTYPE_PID);
+ if (!ei->pid)
+ goto out_iput;
+
+ inode->i_uid = 0;
+ inode->i_gid = 0;
+ inode->i_mode = p->mode;
+ if (S_ISDIR(inode->i_mode))
+ inode->i_nlink = 2;
+ if (S_ISLNK(inode->i_mode))
+ inode->i_size = 64;
+ if (p->iop)
+ inode->i_op = p->iop;
+ if (p->fop)
+ inode->i_fop = p->fop;
+ ei->op = p->op;
+ dentry->d_op = &proc_base_dentry_operations;
+ d_add(dentry, inode);
+ error = NULL;
+out:
+ return error;
+out_iput:
+ iput(inode);
+ goto out;
+}
+
+static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry)
+{
+ struct dentry *error;
+ struct task_struct *task = get_proc_task(dir);
+ struct pid_entry *p, *last;
+
+ error = ERR_PTR(-ENOENT);
+
+ if (!task)
+ goto out_no_task;
+
+ /* Lookup the directory entry */
+ last = &proc_base_stuff[ARRAY_SIZE(proc_base_stuff) - 1];
+ for (p = proc_base_stuff; p <= last; p++) {
+ if (p->len != dentry->d_name.len)
+ continue;
+ if (!memcmp(dentry->d_name.name, p->name, p->len))
+ break;
+ }
+ if (p > last)
+ goto out;
+
+ error = proc_base_instantiate(dir, dentry, task, p);
+
+out:
+ put_task_struct(task);
+out_no_task:
+ return error;
+}
+
+static int proc_base_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct task_struct *task, struct pid_entry *p)
+{
+ return proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+ proc_base_instantiate, task, p);
+}
+
+/*
+ * Thread groups
+ */
+static struct file_operations proc_task_operations;
+static struct inode_operations proc_task_inode_operations;
+
+static struct pid_entry tgid_base_stuff[] = {
+ DIR("task", S_IRUGO|S_IXUGO, task),
+ DIR("fd", S_IRUSR|S_IXUSR, fd),
+ INF("environ", S_IRUSR, pid_environ),
+ INF("auxv", S_IRUSR, pid_auxv),
+ INF("status", S_IRUGO, pid_status),
+ INF("cmdline", S_IRUGO, pid_cmdline),
+ INF("stat", S_IRUGO, tgid_stat),
+ INF("statm", S_IRUGO, pid_statm),
+ REG("maps", S_IRUGO, maps),
+#ifdef CONFIG_NUMA
+ REG("numa_maps", S_IRUGO, numa_maps),
+#endif
+ REG("mem", S_IRUSR|S_IWUSR, mem),
+#ifdef CONFIG_SECCOMP
+ REG("seccomp", S_IRUSR|S_IWUSR, seccomp),
+#endif
+ LNK("cwd", cwd),
+ LNK("root", root),
+ LNK("exe", exe),
+ REG("mounts", S_IRUGO, mounts),
+ REG("mountstats", S_IRUSR, mountstats),
+#ifdef CONFIG_MMU
+ REG("smaps", S_IRUGO, smaps),
+#endif
+#ifdef CONFIG_SECURITY
+ DIR("attr", S_IRUGO|S_IXUGO, attr_dir),
+#endif
+#ifdef CONFIG_KALLSYMS
+ INF("wchan", S_IRUGO, pid_wchan),
+#endif
+#ifdef CONFIG_SCHEDSTATS
+ INF("schedstat", S_IRUGO, pid_schedstat),
+#endif
+#ifdef CONFIG_CPUSETS
+ REG("cpuset", S_IRUGO, cpuset),
+#endif
+ INF("oom_score", S_IRUGO, oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, oom_adjust),
+#ifdef CONFIG_AUDITSYSCALL
+ REG("loginuid", S_IWUSR|S_IRUGO, loginuid),
+#endif
+};
+
+static int proc_tgid_base_readdir(struct file * filp,
+ void * dirent, filldir_t filldir)
+{
+ return proc_pident_readdir(filp,dirent,filldir,
+ tgid_base_stuff,ARRAY_SIZE(tgid_base_stuff));
+}
+
+static struct file_operations proc_tgid_base_operations = {
+ .read = generic_read_dir,
+ .readdir = proc_tgid_base_readdir,
+};
+
+static struct dentry *proc_tgid_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
+ return proc_pident_lookup(dir, dentry,
+ tgid_base_stuff, ARRAY_SIZE(tgid_base_stuff));
+}
+
+static struct inode_operations proc_tgid_base_inode_operations = {
+ .lookup = proc_tgid_base_lookup,
+ .getattr = pid_getattr,
+ .setattr = proc_setattr,
+};
+
/**
* proc_flush_task - Remove dcache entries for @task from the /proc dcache.
*
@@ -2022,30 +1880,45 @@
return;
}
-/* SMP-safe */
+struct dentry *proc_pid_instantiate(struct inode *dir,
+ struct dentry * dentry, struct task_struct *task, void *ptr)
+{
+ struct dentry *error = ERR_PTR(-ENOENT);
+ struct inode *inode;
+
+ inode = proc_pid_make_inode(dir->i_sb, task);
+ if (!inode)
+ goto out;
+
+ inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+ inode->i_op = &proc_tgid_base_inode_operations;
+ inode->i_fop = &proc_tgid_base_operations;
+ inode->i_flags|=S_IMMUTABLE;
+ inode->i_nlink = 4;
+#ifdef CONFIG_SECURITY
+ inode->i_nlink += 1;
+#endif
+
+ dentry->d_op = &pid_dentry_operations;
+
+ d_add(dentry, inode);
+ /* Close the race of the process dying before we return the dentry */
+ if (pid_revalidate(dentry, NULL))
+ error = NULL;
+out:
+ return error;
+}
+
struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
{
struct dentry *result = ERR_PTR(-ENOENT);
struct task_struct *task;
- struct inode *inode;
- struct proc_inode *ei;
unsigned tgid;
- if (dentry->d_name.len == 4 && !memcmp(dentry->d_name.name,"self",4)) {
- inode = new_inode(dir->i_sb);
- if (!inode)
- return ERR_PTR(-ENOMEM);
- ei = PROC_I(inode);
- inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
- inode->i_ino = fake_ino(0, PROC_TGID_INO);
- ei->pde = NULL;
- inode->i_mode = S_IFLNK|S_IRWXUGO;
- inode->i_uid = inode->i_gid = 0;
- inode->i_size = 64;
- inode->i_op = &proc_self_inode_operations;
- d_add(dentry, inode);
- return NULL;
- }
+ result = proc_base_lookup(dir, dentry);
+ if (!IS_ERR(result) || PTR_ERR(result) != -ENOENT)
+ goto out;
+
tgid = name_to_int(dentry);
if (tgid == ~0U)
goto out;
@@ -2058,18 +1931,178 @@
if (!task)
goto out;
- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO);
- if (!inode)
- goto out_put_task;
+ result = proc_pid_instantiate(dir, dentry, task, NULL);
+ put_task_struct(task);
+out:
+ return result;
+}
- inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
- inode->i_op = &proc_tgid_base_inode_operations;
- inode->i_fop = &proc_tgid_base_operations;
- inode->i_flags|=S_IMMUTABLE;
+/*
+ * Find the first task with tgid >= tgid
+ *
+ */
+static struct task_struct *next_tgid(unsigned int tgid)
+{
+ struct task_struct *task;
+ struct pid *pid;
+
+ rcu_read_lock();
+retry:
+ task = NULL;
+ pid = find_ge_pid(tgid);
+ if (pid) {
+ tgid = pid->nr + 1;
+ task = pid_task(pid, PIDTYPE_PID);
+ /* What we to know is if the pid we have find is the
+ * pid of a thread_group_leader. Testing for task
+ * being a thread_group_leader is the obvious thing
+ * todo but there is a window when it fails, due to
+ * the pid transfer logic in de_thread.
+ *
+ * So we perform the straight forward test of seeing
+ * if the pid we have found is the pid of a thread
+ * group leader, and don't worry if the task we have
+ * found doesn't happen to be a thread group leader.
+ * As we don't care in the case of readdir.
+ */
+ if (!task || !has_group_leader_pid(task))
+ goto retry;
+ get_task_struct(task);
+ }
+ rcu_read_unlock();
+ return task;
+}
+
+#define TGID_OFFSET (FIRST_PROCESS_ENTRY + ARRAY_SIZE(proc_base_stuff))
+
+static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct task_struct *task, int tgid)
+{
+ char name[PROC_NUMBUF];
+ int len = snprintf(name, sizeof(name), "%d", tgid);
+ return proc_fill_cache(filp, dirent, filldir, name, len,
+ proc_pid_instantiate, task, NULL);
+}
+
+/* for the /proc/ directory itself, after non-process stuff has been done */
+int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+ unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+ struct task_struct *reaper = get_proc_task(filp->f_dentry->d_inode);
+ struct task_struct *task;
+ int tgid;
+
+ if (!reaper)
+ goto out_no_task;
+
+ for (; nr < ARRAY_SIZE(proc_base_stuff); filp->f_pos++, nr++) {
+ struct pid_entry *p = &proc_base_stuff[nr];
+ if (proc_base_fill_cache(filp, dirent, filldir, reaper, p) < 0)
+ goto out;
+ }
+
+ tgid = filp->f_pos - TGID_OFFSET;
+ for (task = next_tgid(tgid);
+ task;
+ put_task_struct(task), task = next_tgid(tgid + 1)) {
+ tgid = task->pid;
+ filp->f_pos = tgid + TGID_OFFSET;
+ if (proc_pid_fill_cache(filp, dirent, filldir, task, tgid) < 0) {
+ put_task_struct(task);
+ goto out;
+ }
+ }
+ filp->f_pos = PID_MAX_LIMIT + TGID_OFFSET;
+out:
+ put_task_struct(reaper);
+out_no_task:
+ return 0;
+}
+
+/*
+ * Tasks
+ */
+static struct pid_entry tid_base_stuff[] = {
+ DIR("fd", S_IRUSR|S_IXUSR, fd),
+ INF("environ", S_IRUSR, pid_environ),
+ INF("auxv", S_IRUSR, pid_auxv),
+ INF("status", S_IRUGO, pid_status),
+ INF("cmdline", S_IRUGO, pid_cmdline),
+ INF("stat", S_IRUGO, tid_stat),
+ INF("statm", S_IRUGO, pid_statm),
+ REG("maps", S_IRUGO, maps),
+#ifdef CONFIG_NUMA
+ REG("numa_maps", S_IRUGO, numa_maps),
+#endif
+ REG("mem", S_IRUSR|S_IWUSR, mem),
+#ifdef CONFIG_SECCOMP
+ REG("seccomp", S_IRUSR|S_IWUSR, seccomp),
+#endif
+ LNK("cwd", cwd),
+ LNK("root", root),
+ LNK("exe", exe),
+ REG("mounts", S_IRUGO, mounts),
+#ifdef CONFIG_MMU
+ REG("smaps", S_IRUGO, smaps),
+#endif
#ifdef CONFIG_SECURITY
- inode->i_nlink = 5;
-#else
- inode->i_nlink = 4;
+ DIR("attr", S_IRUGO|S_IXUGO, attr_dir),
+#endif
+#ifdef CONFIG_KALLSYMS
+ INF("wchan", S_IRUGO, pid_wchan),
+#endif
+#ifdef CONFIG_SCHEDSTATS
+ INF("schedstat", S_IRUGO, pid_schedstat),
+#endif
+#ifdef CONFIG_CPUSETS
+ REG("cpuset", S_IRUGO, cpuset),
+#endif
+ INF("oom_score", S_IRUGO, oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, oom_adjust),
+#ifdef CONFIG_AUDITSYSCALL
+ REG("loginuid", S_IWUSR|S_IRUGO, loginuid),
+#endif
+};
+
+static int proc_tid_base_readdir(struct file * filp,
+ void * dirent, filldir_t filldir)
+{
+ return proc_pident_readdir(filp,dirent,filldir,
+ tid_base_stuff,ARRAY_SIZE(tid_base_stuff));
+}
+
+static struct dentry *proc_tid_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
+ return proc_pident_lookup(dir, dentry,
+ tid_base_stuff, ARRAY_SIZE(tid_base_stuff));
+}
+
+static struct file_operations proc_tid_base_operations = {
+ .read = generic_read_dir,
+ .readdir = proc_tid_base_readdir,
+};
+
+static struct inode_operations proc_tid_base_inode_operations = {
+ .lookup = proc_tid_base_lookup,
+ .getattr = pid_getattr,
+ .setattr = proc_setattr,
+};
+
+static struct dentry *proc_task_instantiate(struct inode *dir,
+ struct dentry *dentry, struct task_struct *task, void *ptr)
+{
+ struct dentry *error = ERR_PTR(-ENOENT);
+ struct inode *inode;
+ inode = proc_pid_make_inode(dir->i_sb, task);
+
+ if (!inode)
+ goto out;
+ inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+ inode->i_op = &proc_tid_base_inode_operations;
+ inode->i_fop = &proc_tid_base_operations;
+ inode->i_flags|=S_IMMUTABLE;
+ inode->i_nlink = 3;
+#ifdef CONFIG_SECURITY
+ inode->i_nlink += 1;
#endif
dentry->d_op = &pid_dentry_operations;
@@ -2077,21 +2110,16 @@
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
if (pid_revalidate(dentry, NULL))
- result = NULL;
-
-out_put_task:
- put_task_struct(task);
+ error = NULL;
out:
- return result;
+ return error;
}
-/* SMP-safe */
static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
{
struct dentry *result = ERR_PTR(-ENOENT);
struct task_struct *task;
struct task_struct *leader = get_proc_task(dir);
- struct inode *inode;
unsigned tid;
if (!leader)
@@ -2111,28 +2139,7 @@
if (leader->tgid != task->tgid)
goto out_drop_task;
- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO);
-
-
- if (!inode)
- goto out_drop_task;
- inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
- inode->i_op = &proc_tid_base_inode_operations;
- inode->i_fop = &proc_tid_base_operations;
- inode->i_flags|=S_IMMUTABLE;
-#ifdef CONFIG_SECURITY
- inode->i_nlink = 4;
-#else
- inode->i_nlink = 3;
-#endif
-
- dentry->d_op = &pid_dentry_operations;
-
- d_add(dentry, inode);
- /* Close the race of the process dying before we return the dentry */
- if (pid_revalidate(dentry, NULL))
- result = NULL;
-
+ result = proc_task_instantiate(dir, dentry, task, NULL);
out_drop_task:
put_task_struct(task);
out:
@@ -2142,114 +2149,6 @@
}
/*
- * Find the first tgid to return to user space.
- *
- * Usually this is just whatever follows &init_task, but if the users
- * buffer was too small to hold the full list or there was a seek into
- * the middle of the directory we have more work to do.
- *
- * In the case of a short read we start with find_task_by_pid.
- *
- * In the case of a seek we start with &init_task and walk nr
- * threads past it.
- */
-static struct task_struct *first_tgid(int tgid, unsigned int nr)
-{
- struct task_struct *pos;
- rcu_read_lock();
- if (tgid && nr) {
- pos = find_task_by_pid(tgid);
- if (pos && thread_group_leader(pos))
- goto found;
- }
- /* If nr exceeds the number of processes get out quickly */
- pos = NULL;
- if (nr && nr >= nr_processes())
- goto done;
-
- /* If we haven't found our starting place yet start with
- * the init_task and walk nr tasks forward.
- */
- for (pos = next_task(&init_task); nr > 0; --nr) {
- pos = next_task(pos);
- if (pos == &init_task) {
- pos = NULL;
- goto done;
- }
- }
-found:
- get_task_struct(pos);
-done:
- rcu_read_unlock();
- return pos;
-}
-
-/*
- * Find the next task in the task list.
- * Return NULL if we loop or there is any error.
- *
- * The reference to the input task_struct is released.
- */
-static struct task_struct *next_tgid(struct task_struct *start)
-{
- struct task_struct *pos;
- rcu_read_lock();
- pos = start;
- if (pid_alive(start))
- pos = next_task(start);
- if (pid_alive(pos) && (pos != &init_task)) {
- get_task_struct(pos);
- goto done;
- }
- pos = NULL;
-done:
- rcu_read_unlock();
- put_task_struct(start);
- return pos;
-}
-
-/* for the /proc/ directory itself, after non-process stuff has been done */
-int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
-{
- char buf[PROC_NUMBUF];
- unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
- struct task_struct *task;
- int tgid;
-
- if (!nr) {
- ino_t ino = fake_ino(0,PROC_TGID_INO);
- if (filldir(dirent, "self", 4, filp->f_pos, ino, DT_LNK) < 0)
- return 0;
- filp->f_pos++;
- nr++;
- }
- nr -= 1;
-
- /* f_version caches the tgid value that the last readdir call couldn't
- * return. lseek aka telldir automagically resets f_version to 0.
- */
- tgid = filp->f_version;
- filp->f_version = 0;
- for (task = first_tgid(tgid, nr);
- task;
- task = next_tgid(task), filp->f_pos++) {
- int len;
- ino_t ino;
- tgid = task->pid;
- len = snprintf(buf, sizeof(buf), "%d", tgid);
- ino = fake_ino(tgid, PROC_TGID_INO);
- if (filldir(dirent, buf, len, filp->f_pos, ino, DT_DIR) < 0) {
- /* returning this tgid failed, save it as the first
- * pid for the next readir call */
- filp->f_version = tgid;
- put_task_struct(task);
- break;
- }
- }
- return 0;
-}
-
-/*
* Find the first tid of a thread group to return to user space.
*
* Usually this is just the thread group leader, but if the users
@@ -2318,10 +2217,18 @@
return pos;
}
+static int proc_task_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+ struct task_struct *task, int tid)
+{
+ char name[PROC_NUMBUF];
+ int len = snprintf(name, sizeof(name), "%d", tid);
+ return proc_fill_cache(filp, dirent, filldir, name, len,
+ proc_task_instantiate, task, NULL);
+}
+
/* for the /proc/TGID/task/ directories */
static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
- char buf[PROC_NUMBUF];
struct dentry *dentry = filp->f_dentry;
struct inode *inode = dentry->d_inode;
struct task_struct *leader = get_proc_task(inode);
@@ -2358,11 +2265,8 @@
for (task = first_tid(leader, tid, pos - 2);
task;
task = next_tid(task), pos++) {
- int len;
tid = task->pid;
- len = snprintf(buf, sizeof(buf), "%d", tid);
- ino = fake_ino(tid, PROC_TID_INO);
- if (filldir(dirent, buf, len, pos, ino, DT_DIR < 0)) {
+ if (proc_task_fill_cache(filp, dirent, filldir, task, tid) < 0) {
/* returning this tgid failed, save it as the first
* pid for the next readir call */
filp->f_version = tid;
@@ -2392,3 +2296,14 @@
return 0;
}
+
+static struct inode_operations proc_task_inode_operations = {
+ .lookup = proc_task_lookup,
+ .getattr = proc_task_getattr,
+ .setattr = proc_setattr,
+};
+
+static struct file_operations proc_task_operations = {
+ .read = generic_read_dir,
+ .readdir = proc_task_readdir,
+};
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 66bc425..8d88e58 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -45,6 +45,7 @@
#include <linux/sysrq.h>
#include <linux/vmalloc.h>
#include <linux/crash_dump.h>
+#include <linux/pspace.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/io.h>
@@ -91,7 +92,7 @@
LOAD_INT(a), LOAD_FRAC(a),
LOAD_INT(b), LOAD_FRAC(b),
LOAD_INT(c), LOAD_FRAC(c),
- nr_running(), nr_threads, last_pid);
+ nr_running(), nr_threads, init_pspace.last_pid);
return proc_calc_metrics(page, start, off, count, eof, len);
}
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 8901c65..ffe66c3 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/smp_lock.h>
+#include <linux/mount.h>
#include "internal.h"
@@ -28,6 +29,17 @@
static int proc_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
+ if (proc_mnt) {
+ /* Seed the root directory with a pid so it doesn't need
+ * to be special in base.c. I would do this earlier but
+ * the only task alive when /proc is mounted the first time
+ * is the init_task and it doesn't have any pids.
+ */
+ struct proc_inode *ei;
+ ei = PROC_I(proc_mnt->mnt_sb->s_root->d_inode);
+ if (!ei->pid)
+ ei->pid = find_get_pid(1);
+ }
return get_sb_single(fs_type, flags, data, proc_fill_super, mnt);
}
diff --git a/include/asm-alpha/unistd.h b/include/asm-alpha/unistd.h
index bc6e6a9..2cabbd4 100644
--- a/include/asm-alpha/unistd.h
+++ b/include/asm-alpha/unistd.h
@@ -580,75 +580,6 @@
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <asm/ptrace.h>
-
-static inline long open(const char * name, int mode, int flags)
-{
- return sys_open(name, mode, flags);
-}
-
-static inline long dup(int fd)
-{
- return sys_dup(fd);
-}
-
-static inline long close(int fd)
-{
- return sys_close(fd);
-}
-
-static inline off_t lseek(int fd, off_t off, int whence)
-{
- return sys_lseek(fd, off, whence);
-}
-
-static inline void _exit(int value)
-{
- sys_exit(value);
-}
-
-#define exit(x) _exit(x)
-
-static inline long write(int fd, const char * buf, size_t nr)
-{
- return sys_write(fd, buf, nr);
-}
-
-static inline long read(int fd, char * buf, size_t nr)
-{
- return sys_read(fd, buf, nr);
-}
-
-extern int execve(char *, char **, char **);
-
-static inline long setsid(void)
-{
- return sys_setsid();
-}
-
-static inline pid_t waitpid(int pid, int * wait_stat, int flags)
-{
- return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-asmlinkage int sys_execve(char *ufilename, char **argv, char **envp,
- unsigned long a3, unsigned long a4, unsigned long a5,
- struct pt_regs regs);
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize,
- void *restorer);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/* "Conditional" syscalls. What we want is
__attribute__((weak,alias("sys_ni_syscall")))
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h
index 2ab4078..14a87ee 100644
--- a/include/asm-arm/unistd.h
+++ b/include/asm-arm/unistd.h
@@ -549,30 +549,6 @@
#define __ARCH_WANT_SYS_SOCKETCALL
#endif
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-extern long execve(const char *file, char **argv, char **envp);
-
-struct pt_regs;
-asmlinkage int sys_execve(char *filenamei, char **argv, char **envp,
- struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- struct pt_regs *regs);
-asmlinkage int sys_fork(struct pt_regs *regs);
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h
index c6d2436..25a5eea 100644
--- a/include/asm-arm26/unistd.h
+++ b/include/asm-arm26/unistd.h
@@ -464,30 +464,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-extern long execve(const char *file, char **argv, char **envp);
-
-struct pt_regs;
-asmlinkage int sys_execve(char *filenamei, char **argv, char **envp,
- struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- struct pt_regs *regs);
-asmlinkage int sys_fork(struct pt_regs *regs);
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h
index 1f528f9..a50e500 100644
--- a/include/asm-avr32/unistd.h
+++ b/include/asm-avr32/unistd.h
@@ -281,30 +281,10 @@
#define __NR_tee 263
#define __NR_vmsplice 264
+#ifdef __KERNEL__
#define NR_syscalls 265
-/*
- * AVR32 calling convention for system calls:
- * - System call number in r8
- * - Parameters in r12 and downwards to r9 as well as r6 and r5.
- * - Return value in r12
- */
-
-/*
- * user-visible error numbers are in the range -1 - -124: see
- * <asm-generic/errno.h>
- */
-
-#define __syscall_return(type, res) do { \
- if ((unsigned long)(res) >= (unsigned long)(-125)) { \
- errno = -(res); \
- res = -1; \
- } \
- return (type) (res); \
- } while (0)
-
-#ifdef __KERNEL__
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
@@ -319,62 +299,6 @@
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#endif
-
-#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__)
-
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/signal.h>
-
-struct pt_regs;
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-static inline int execve(const char *file, char **argv, char **envp)
-{
- register long scno asm("r8") = __NR_execve;
- register long sc1 asm("r12") = (long)file;
- register long sc2 asm("r11") = (long)argv;
- register long sc3 asm("r10") = (long)envp;
- int res;
-
- asm volatile("scall"
- : "=r"(sc1)
- : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3)
- : "lr", "memory");
- res = sc1;
- __syscall_return(int, res);
-}
-
-asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
-asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
- struct pt_regs *regs);
-asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long __user *filedes);
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, off_t offset);
-asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len);
-asmlinkage int sys_fork(struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- unsigned long parent_tidptr,
- unsigned long child_tidptr, struct pt_regs *regs);
-asmlinkage int sys_vfork(struct pt_regs *regs);
-asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv,
- char __user *__user *uenvp, struct pt_regs *regs);
-
-#endif
/*
* "Conditional" syscalls
@@ -384,4 +308,6 @@
*/
#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
+#endif /* __KERNEL__ */
+
#endif /* __ASM_AVR32_UNISTD_H */
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 7372efa..7c90fa9 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -322,67 +322,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-
-struct pt_regs;
-asmlinkage long sys_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(const char *fname, char **argv, char **envp,
- long r13, long mof, long srp, struct pt_regs *regs);
-asmlinkage int sys_clone(unsigned long newusp, unsigned long flags,
- int* parent_tid, int* child_tid, long mof, long srp,
- struct pt_regs *regs);
-asmlinkage int sys_fork(long r10, long r11, long r12, long r13,
- long mof, long srp, struct pt_regs *regs);
-asmlinkage int sys_vfork(long r10, long r11, long r12, long r13,
- long mof, long srp, struct pt_regs *regs);
-asmlinkage int sys_pipe(unsigned long __user *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-/*
- * Since we define it "external", it collides with the built-in
- * definition, which has the "noreturn" attribute and will cause
- * complaints. We don't want to use -fno-builtin, so just use a
- * different name when in the kernel.
- */
-#define _exit kernel_syscall_exit
-static inline _syscall1(int,_exit,int,exitcode)
-static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-#endif /* __KERNEL_SYSCALLS__ */
-
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-frv/unistd.h b/include/asm-frv/unistd.h
index d104d1b..725e854 100644
--- a/include/asm-frv/unistd.h
+++ b/include/asm-frv/unistd.h
@@ -440,31 +440,6 @@
__syscall_return(type, __sc0); \
}
-
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-
-#endif /* __KERNEL_SYSCALLS__ */
-
#define __ARCH_WANT_IPC_PARSE_VERSION
/* #define __ARCH_WANT_OLD_READDIR */
#define __ARCH_WANT_OLD_STAT
diff --git a/include/asm-h8300/unistd.h b/include/asm-h8300/unistd.h
index a2dd904..747788d 100644
--- a/include/asm-h8300/unistd.h
+++ b/include/asm-h8300/unistd.h
@@ -485,57 +485,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(int,pause)
-static inline _syscall0(int,sync)
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-static inline _syscall1(int,_exit,int,exitcode)
-static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-static inline _syscall1(int,delete_module,const char *,name)
-
-static inline pid_t wait(int * wait_stat)
-{
- return waitpid(-1,wait_stat,0);
-}
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(char *name, char **argv, char **envp,
- int dummy, ...);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*/
diff --git a/include/asm-i386/bugs.h b/include/asm-i386/bugs.h
index 2a9e4ee..592ffee 100644
--- a/include/asm-i386/bugs.h
+++ b/include/asm-i386/bugs.h
@@ -189,6 +189,6 @@
check_fpu();
check_hlt();
check_popad();
- system_utsname.machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
+ init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
alternative_instructions();
}
diff --git a/include/asm-i386/elf.h b/include/asm-i386/elf.h
index db4344d..3a05436 100644
--- a/include/asm-i386/elf.h
+++ b/include/asm-i386/elf.h
@@ -112,7 +112,7 @@
For the moment, we have only optimizations for the Intel generations,
but that could change... */
-#define ELF_PLATFORM (system_utsname.machine)
+#define ELF_PLATFORM (utsname()->machine)
#define SET_PERSONALITY(ex, ibcs2) do { } while (0)
diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h
index a4a0e52..d505f50 100644
--- a/include/asm-i386/ptrace.h
+++ b/include/asm-i386/ptrace.h
@@ -47,7 +47,10 @@
{
return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
}
+
#define instruction_pointer(regs) ((regs)->eip)
+#define regs_return_value(regs) ((regs)->eax)
+
extern unsigned long profile_pc(struct pt_regs *regs);
#endif /* __KERNEL__ */
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index bd99870..3ca7ab9 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -451,45 +451,6 @@
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-
-asmlinkage int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount);
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(struct pt_regs regs);
-asmlinkage int sys_clone(struct pt_regs regs);
-asmlinkage int sys_fork(struct pt_regs regs);
-asmlinkage int sys_vfork(struct pt_regs regs);
-asmlinkage int sys_pipe(unsigned long __user *fildes);
-asmlinkage long sys_iopl(unsigned long unused);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h
index 1414316..f4ef87a 100644
--- a/include/asm-ia64/ptrace.h
+++ b/include/asm-ia64/ptrace.h
@@ -241,6 +241,9 @@
* the canonical representation by adding to instruction pointer.
*/
# define instruction_pointer(regs) ((regs)->cr_iip + ia64_psr(regs)->ri)
+
+#define regs_return_value(regs) ((regs)->r8)
+
/* Conserve space in histogram by encoding slot bits in address
* bits 2 and 3 rather than bits 0 and 1.
*/
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index bb0eb72..53c5c0e 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -319,78 +319,6 @@
extern long __ia64_syscall (long a0, long a1, long a2, long a3, long a4, long nr);
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/string.h>
-#include <linux/signal.h>
-#include <asm/ptrace.h>
-#include <linux/stringify.h>
-#include <linux/syscalls.h>
-
-static inline long
-open (const char * name, int mode, int flags)
-{
- return sys_open(name, mode, flags);
-}
-
-static inline long
-dup (int fd)
-{
- return sys_dup(fd);
-}
-
-static inline long
-close (int fd)
-{
- return sys_close(fd);
-}
-
-static inline off_t
-lseek (int fd, off_t off, int whence)
-{
- return sys_lseek(fd, off, whence);
-}
-
-static inline void
-_exit (int value)
-{
- sys_exit(value);
-}
-
-#define exit(x) _exit(x)
-
-static inline long
-write (int fd, const char * buf, size_t nr)
-{
- return sys_write(fd, buf, nr);
-}
-
-static inline long
-read (int fd, char * buf, size_t nr)
-{
- return sys_read(fd, buf, nr);
-}
-
-
-static inline long
-setsid (void)
-{
- return sys_setsid();
-}
-
-static inline pid_t
-waitpid (int pid, int * wait_stat, int flags)
-{
- return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-
-extern int execve (const char *filename, char *const av[], char *const ep[]);
-extern pid_t clone (unsigned long flags, void *sp);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
asmlinkage unsigned long sys_mmap(
unsigned long addr, unsigned long len,
int prot, int flags,
diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h
index 5c6a9ac..95aa342 100644
--- a/include/asm-m32r/unistd.h
+++ b/include/asm-m32r/unistd.h
@@ -424,43 +424,6 @@
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-static __inline__ _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(struct pt_regs regs);
-asmlinkage int sys_clone(struct pt_regs regs);
-asmlinkage int sys_fork(struct pt_regs regs);
-asmlinkage int sys_vfork(struct pt_regs regs);
-asmlinkage int sys_pipe(unsigned long __user *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h
index 751632b..3ab716f 100644
--- a/include/asm-m68k/unistd.h
+++ b/include/asm-m68k/unistd.h
@@ -409,12 +409,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h
index 21fdc37..daafb5d 100644
--- a/include/asm-m68knommu/unistd.h
+++ b/include/asm-m68knommu/unistd.h
@@ -463,61 +463,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(int,pause)
-static inline _syscall0(int,sync)
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-static inline _syscall1(int,_exit,int,exitcode)
-static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-static inline _syscall1(int,delete_module,const char *,name)
-
-static inline pid_t wait(int * wait_stat)
-{
- return waitpid(-1,wait_stat,0);
-}
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(char *name, char **argv, char **envp);
-asmlinkage int sys_pipe(unsigned long *fildes);
-struct pt_regs;
-int sys_request_irq(unsigned int,
- irqreturn_t (*)(int, void *, struct pt_regs *),
- unsigned long, const char *, void *);
-void sys_free_irq(unsigned int, void *);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 36416fd..9ab59e2 100644
--- a/include/asm-mips/cacheflush.h
+++ b/include/asm-mips/cacheflush.h
@@ -46,8 +46,6 @@
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
-extern void (*__flush_icache_page)(struct vm_area_struct *vma,
- struct page *page);
static inline void flush_icache_page(struct vm_area_struct *vma,
struct page *page)
{
diff --git a/include/asm-mips/galileo-boards/ev96100.h b/include/asm-mips/galileo-boards/ev96100.h
deleted file mode 100644
index 070dfd8..0000000
--- a/include/asm-mips/galileo-boards/ev96100.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- *
- */
-#ifndef _MIPS_EV96100_H
-#define _MIPS_EV96100_H
-
-#include <asm/addrspace.h>
-
-/*
- * GT64120 config space base address
- */
-#define GT64120_BASE (KSEG1ADDR(0x14000000))
-#define MIPS_GT_BASE GT64120_BASE
-
-/*
- * PCI Bus allocation
- */
-#define GT_PCI_MEM_BASE 0x12000000UL
-#define GT_PCI_MEM_SIZE 0x02000000UL
-#define GT_PCI_IO_BASE 0x10000000UL
-#define GT_PCI_IO_SIZE 0x02000000UL
-#define GT_ISA_IO_BASE PCI_IO_BASE
-
-/*
- * Duart I/O ports.
- */
-#define EV96100_COM1_BASE_ADDR (0xBD000000 + 0x20)
-#define EV96100_COM2_BASE_ADDR (0xBD000000 + 0x00)
-
-
-/*
- * EV96100 interrupt controller register base.
- */
-#define EV96100_ICTRL_REGS_BASE (KSEG1ADDR(0x1f000000))
-
-/*
- * EV96100 UART register base.
- */
-#define EV96100_UART0_REGS_BASE EV96100_COM1_BASE_ADDR
-#define EV96100_UART1_REGS_BASE EV96100_COM2_BASE_ADDR
-#define EV96100_BASE_BAUD ( 3686400 / 16 )
-
-
-/*
- * Because of an error/peculiarity in the Galileo chip, we need to swap the
- * bytes when running bigendian.
- */
-#define __GT_READ(ofs) \
- (*(volatile u32 *)(GT64120_BASE+(ofs)))
-#define __GT_WRITE(ofs, data) \
- do { *(volatile u32 *)(GT64120_BASE+(ofs)) = (data); } while (0)
-#define GT_READ(ofs) le32_to_cpu(__GT_READ(ofs))
-#define GT_WRITE(ofs, data) __GT_WRITE(ofs, cpu_to_le32(data))
-
-#endif /* !(_MIPS_EV96100_H) */
diff --git a/include/asm-mips/galileo-boards/ev96100int.h b/include/asm-mips/galileo-boards/ev96100int.h
deleted file mode 100644
index c58b16d..0000000
--- a/include/asm-mips/galileo-boards/ev96100int.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- *
- */
-#ifndef _MIPS_EV96100INT_H
-#define _MIPS_EV96100INT_H
-
-#define EV96100INT_UART_0 6 /* IP 6 */
-#define EV96100INT_TIMER 7 /* IP 7 */
-
-extern void ev96100int_init(void);
-
-#endif /* !(_MIPS_EV96100_H) */
diff --git a/include/asm-mips/irqflags.h b/include/asm-mips/irqflags.h
index 43ca09a..46bf5de 100644
--- a/include/asm-mips/irqflags.h
+++ b/include/asm-mips/irqflags.h
@@ -213,12 +213,37 @@
* Do the CPU's IRQ-state tracing from assembly code.
*/
#ifdef CONFIG_TRACE_IRQFLAGS
+/* Reload some registers clobbered by trace_hardirqs_on */
+#ifdef CONFIG_64BIT
+# define TRACE_IRQS_RELOAD_REGS \
+ LONG_L $11, PT_R11(sp); \
+ LONG_L $10, PT_R10(sp); \
+ LONG_L $9, PT_R9(sp); \
+ LONG_L $8, PT_R8(sp); \
+ LONG_L $7, PT_R7(sp); \
+ LONG_L $6, PT_R6(sp); \
+ LONG_L $5, PT_R5(sp); \
+ LONG_L $4, PT_R4(sp); \
+ LONG_L $2, PT_R2(sp)
+#else
+# define TRACE_IRQS_RELOAD_REGS \
+ LONG_L $7, PT_R7(sp); \
+ LONG_L $6, PT_R6(sp); \
+ LONG_L $5, PT_R5(sp); \
+ LONG_L $4, PT_R4(sp); \
+ LONG_L $2, PT_R2(sp)
+#endif
# define TRACE_IRQS_ON \
+ CLI; /* make sure trace_hardirqs_on() is called in kernel level */ \
jal trace_hardirqs_on
+# define TRACE_IRQS_ON_RELOAD \
+ TRACE_IRQS_ON; \
+ TRACE_IRQS_RELOAD_REGS
# define TRACE_IRQS_OFF \
jal trace_hardirqs_off
#else
# define TRACE_IRQS_ON
+# define TRACE_IRQS_ON_RELOAD
# define TRACE_IRQS_OFF
#endif
diff --git a/include/asm-mips/mach-ev64120/mach-gt64120.h b/include/asm-mips/mach-ev64120/mach-gt64120.h
index 13b1443..7e272ce5 100644
--- a/include/asm-mips/mach-ev64120/mach-gt64120.h
+++ b/include/asm-mips/mach-ev64120/mach-gt64120.h
@@ -42,6 +42,7 @@
#define EV64120_UART0_REGS_BASE (KSEG1ADDR(EV64120_COM1_BASE_ADDR))
#define EV64120_UART1_REGS_BASE (KSEG1ADDR(EV64120_COM2_BASE_ADDR))
#define EV64120_BASE_BAUD ( 3686400 / 16 )
+#define EV64120_UART_IRQ 6
/*
* PCI interrupts will come in on either the INTA or INTD interrups lines,
diff --git a/include/asm-mips/serial.h b/include/asm-mips/serial.h
index 035637c..c882e04 100644
--- a/include/asm-mips/serial.h
+++ b/include/asm-mips/serial.h
@@ -55,19 +55,18 @@
* Galileo EV64120 evaluation board
*/
#ifdef CONFIG_MIPS_EV64120
-#include <asm/galileo-boards/ev96100.h>
-#include <asm/galileo-boards/ev96100int.h>
-#define EV96100_SERIAL_PORT_DEFNS \
- { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
+#include <mach-gt64120.h>
+#define EV64120_SERIAL_PORT_DEFNS \
+ { .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
.flags = STD_COM_FLAGS, \
- .iomem_base = EV96100_UART0_REGS_BASE, .iomem_reg_shift = 2, \
+ .iomem_base = EV64120_UART0_REGS_BASE, .iomem_reg_shift = 2, \
.io_type = SERIAL_IO_MEM }, \
- { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
+ { .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
.flags = STD_COM_FLAGS, \
- .iomem_base = EV96100_UART1_REGS_BASE, .iomem_reg_shift = 2, \
+ .iomem_base = EV64120_UART1_REGS_BASE, .iomem_reg_shift = 2, \
.io_type = SERIAL_IO_MEM },
#else
-#define EV96100_SERIAL_PORT_DEFNS
+#define EV64120_SERIAL_PORT_DEFNS
#endif
#ifdef CONFIG_MIPS_ITE8172
@@ -239,7 +238,7 @@
#define SERIAL_PORT_DFNS \
DDB5477_SERIAL_PORT_DEFNS \
- EV96100_SERIAL_PORT_DEFNS \
+ EV64120_SERIAL_PORT_DEFNS \
IP32_SERIAL_PORT_DEFNS \
ITE_SERIAL_PORT_DEFNS \
IVR_SERIAL_PORT_DEFNS \
diff --git a/include/asm-mips/stacktrace.h b/include/asm-mips/stacktrace.h
new file mode 100644
index 0000000..07f8733
--- /dev/null
+++ b/include/asm-mips/stacktrace.h
@@ -0,0 +1,44 @@
+#ifndef _ASM_STACKTRACE_H
+#define _ASM_STACKTRACE_H
+
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_KALLSYMS
+extern int raw_show_trace;
+extern unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
+ unsigned long pc, unsigned long *ra);
+#else
+#define raw_show_trace 1
+#define unwind_stack(task, sp, pc, ra) 0
+#endif
+
+static __always_inline void prepare_frametrace(struct pt_regs *regs)
+{
+#ifndef CONFIG_KALLSYMS
+ /*
+ * Remove any garbage that may be in regs (specially func
+ * addresses) to avoid show_raw_backtrace() to report them
+ */
+ memset(regs, 0, sizeof(*regs));
+#endif
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noat\n\t"
+#ifdef CONFIG_64BIT
+ "1: dla $1, 1b\n\t"
+ "sd $1, %0\n\t"
+ "sd $29, %1\n\t"
+ "sd $31, %2\n\t"
+#else
+ "1: la $1, 1b\n\t"
+ "sw $1, %0\n\t"
+ "sw $29, %1\n\t"
+ "sw $31, %2\n\t"
+#endif
+ ".set pop\n\t"
+ : "=m" (regs->cp0_epc),
+ "=m" (regs->regs[29]), "=m" (regs->regs[31])
+ : : "memory");
+}
+
+#endif /* _ASM_STACKTRACE_H */
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index c391429..685c914 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -1212,45 +1212,6 @@
# define __ARCH_WANT_COMPAT_SYS_TIME
# endif
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-#include <asm/sim.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-
-asmlinkage unsigned long sys_mmap(
- unsigned long addr, size_t len,
- int prot, int flags,
- int fd, off_t offset);
-asmlinkage long sys_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs);
-asmlinkage int sys_pipe(nabi_no_regargs struct pt_regs regs);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
#endif /* !__ASSEMBLY__ */
/*
diff --git a/include/asm-parisc/unistd.h b/include/asm-parisc/unistd.h
index 27bcfad..53b0f5d 100644
--- a/include/asm-parisc/unistd.h
+++ b/include/asm-parisc/unistd.h
@@ -952,92 +952,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-/* mmap & mmap2 take 6 arguments */
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5,type6,arg6) \
-type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
-{ \
- return K_INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6); \
-}
-
-#ifdef __KERNEL_SYSCALLS__
-
-#include <asm/current.h>
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/syscalls.h>
-
-static inline pid_t setsid(void)
-{
- return sys_setsid();
-}
-
-static inline int write(int fd, const char *buf, off_t count)
-{
- return sys_write(fd, buf, count);
-}
-
-static inline int read(int fd, char *buf, off_t count)
-{
- return sys_read(fd, buf, count);
-}
-
-static inline off_t lseek(int fd, off_t offset, int count)
-{
- return sys_lseek(fd, offset, count);
-}
-
-static inline int dup(int fd)
-{
- return sys_dup(fd);
-}
-
-static inline int execve(char *filename, char * argv [],
- char * envp[])
-{
- extern int __execve(char *, char **, char **, struct task_struct *);
- return __execve(filename, argv, envp, current);
-}
-
-static inline int open(const char *file, int flag, int mode)
-{
- return sys_open(file, flag, mode);
-}
-
-static inline int close(int fd)
-{
- return sys_close(fd);
-}
-
-static inline void _exit(int exitcode)
-{
- sys_exit(exitcode);
-}
-
-static inline pid_t waitpid(pid_t pid, int *wait_stat, int options)
-{
- return sys_wait4(pid, wait_stat, options, NULL);
-}
-
-asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long offset);
-asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-struct pt_regs;
-asmlinkage int sys_execve(struct pt_regs *regs);
-int sys_clone(unsigned long clone_flags, unsigned long usp,
- struct pt_regs *regs);
-int sys_vfork(struct pt_regs *regs);
-int sys_pipe(int *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
#endif /* __ASSEMBLY__ */
#undef STR
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index 34e1f89..2dafa37 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -44,6 +44,28 @@
#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000)
#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000)
+/*
+ * 64bit powerpc uses function descriptors.
+ * Handle cases where:
+ * - User passes a <.symbol> or <module:.symbol>
+ * - User passes a <symbol> or <module:symbol>
+ * - User passes a non-existant symbol, kallsyms_lookup_name
+ * returns 0. Don't deref the NULL pointer in that case
+ */
+#define kprobe_lookup_name(name, addr) \
+{ \
+ addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \
+ if (addr) { \
+ char *colon; \
+ if ((colon = strchr(name, ':')) != NULL) { \
+ colon++; \
+ if (*colon != '\0' && *colon != '.') \
+ addr = *(kprobe_opcode_t **)addr; \
+ } else if (name[0] != '.') \
+ addr = *(kprobe_opcode_t **)addr; \
+ } \
+}
+
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)((func_descr_t *)pentry)
#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \
diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index 4435efe..4ad77a1 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -73,6 +73,8 @@
#ifndef __ASSEMBLY__
#define instruction_pointer(regs) ((regs)->nip)
+#define regs_return_value(regs) ((regs)->gpr[3])
+
#ifdef CONFIG_SMP
extern unsigned long profile_pc(struct pt_regs *regs);
#else
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index eb66eae..464a48c 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -479,13 +479,6 @@
#endif
/*
- * System call prototypes.
- */
-#ifdef __KERNEL_SYSCALLS__
-extern int execve(const char *file, char **argv, char **envp);
-#endif /* __KERNEL_SYSCALLS__ */
-
-/*
* "Conditional" syscalls
*
* What we want is __attribute__((weak,alias("sys_ni_syscall"))),
diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
index 8d2bf65..7b768c5 100644
--- a/include/asm-s390/ptrace.h
+++ b/include/asm-s390/ptrace.h
@@ -472,6 +472,7 @@
#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
+#define regs_return_value(regs)((regs)->gprs[2])
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs * regs);
#endif
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h
index 0361ac5..0cccfd8 100644
--- a/include/asm-s390/unistd.h
+++ b/include/asm-s390/unistd.h
@@ -523,57 +523,6 @@
# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
# endif
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/ptrace.h>
-#include <asm/stat.h>
-#include <linux/syscalls.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-static inline _syscall2(long,stat,char *,filename,struct stat *,statbuf)
-
-static inline pid_t waitpid(int pid, int *wait_stat, int flags)
-{
- return sys_wait4(pid, wait_stat, flags, NULL);
-}
-struct mmap_arg_struct;
-asmlinkage long sys_mmap2(struct mmap_arg_struct __user *arg);
-
-asmlinkage long sys_execve(struct pt_regs regs);
-asmlinkage long sys_clone(struct pt_regs regs);
-asmlinkage long sys_fork(struct pt_regs regs);
-asmlinkage long sys_vfork(struct pt_regs regs);
-asmlinkage long sys_pipe(unsigned long __user *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h
index b4000c8..beeea40 100644
--- a/include/asm-sh/bugs.h
+++ b/include/asm-sh/bugs.h
@@ -18,7 +18,7 @@
{
extern char *get_cpu_subtype(void);
extern unsigned long loops_per_jiffy;
- char *p= &system_utsname.machine[2]; /* "sh" */
+ char *p= &init_utsname()->machine[2]; /* "sh" */
cpu_data->loops_per_jiffy = loops_per_jiffy;
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index 5d5e9f9..f1a0cbc 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -472,76 +472,6 @@
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <linux/linkage.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static __inline__ _syscall0(int,pause)
-static __inline__ _syscall0(int,sync)
-static __inline__ _syscall0(pid_t,setsid)
-static __inline__ _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static __inline__ _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static __inline__ _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static __inline__ _syscall1(int,dup,int,fd)
-static __inline__ _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static __inline__ _syscall3(int,open,const char *,file,int,flag,int,mode)
-static __inline__ _syscall1(int,close,int,fd)
-static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-static __inline__ _syscall1(int,delete_module,const char *,name)
-
-static __inline__ pid_t wait(int * wait_stat)
-{
- return waitpid(-1,wait_stat,0);
-}
-
-asmlinkage long sys_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_execve(char *ufilename, char **uargv,
- char **uenvp, unsigned long r7,
- struct pt_regs regs);
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- unsigned long parent_tidptr,
- unsigned long child_tidptr,
- struct pt_regs regs);
-asmlinkage int sys_fork(unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs regs);
-asmlinkage int sys_vfork(unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs regs);
-asmlinkage int sys_pipe(unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs regs);
-asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char *buf,
- size_t count, long dummy, loff_t pos);
-asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char *buf,
- size_t count, long dummy, loff_t pos);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-sh64/unistd.h b/include/asm-sh64/unistd.h
index c113566..ee7828b 100644
--- a/include/asm-sh64/unistd.h
+++ b/include/asm-sh64/unistd.h
@@ -513,47 +513,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-/* Copy from sh */
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static inline _syscall0(int,pause)
-static inline _syscall1(int,setup,int,magic)
-static inline _syscall0(int,sync)
-static inline _syscall0(pid_t,setsid)
-static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static inline _syscall1(int,dup,int,fd)
-static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-static inline _syscall1(int,close,int,fd)
-static inline _syscall1(int,_exit,int,exitcode)
-static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-static inline _syscall1(int,delete_module,const char *,name)
-
-static inline pid_t wait(int * wait_stat)
-{
- return waitpid(-1,wait_stat,0);
-}
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-sparc/unistd.h b/include/asm-sparc/unistd.h
index 2553762..c7a495a 100644
--- a/include/asm-sparc/unistd.h
+++ b/include/asm-sparc/unistd.h
@@ -478,53 +478,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static __inline__ _syscall0(pid_t,setsid)
-static __inline__ _syscall3(int,write,int,fd,__const__ char *,buf,off_t,count)
-static __inline__ _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static __inline__ _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static __inline__ _syscall1(int,dup,int,fd)
-static __inline__ _syscall3(int,execve,__const__ char *,file,char **,argv,char **,envp)
-static __inline__ _syscall3(int,open,__const__ char *,file,int,flag,int,mode)
-static __inline__ _syscall1(int,close,int,fd)
-static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-
-#include <linux/linkage.h>
-
-asmlinkage unsigned long sys_mmap(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long off);
-asmlinkage unsigned long sys_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- void __user *restorer,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*
diff --git a/include/asm-sparc64/unistd.h b/include/asm-sparc64/unistd.h
index badc73f..124cf07 100644
--- a/include/asm-sparc64/unistd.h
+++ b/include/asm-sparc64/unistd.h
@@ -445,48 +445,6 @@
errno = -__res; \
return -1; \
}
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-static __inline__ _syscall0(pid_t,setsid)
-static __inline__ _syscall3(int,write,int,fd,__const__ char *,buf,off_t,count)
-static __inline__ _syscall3(int,read,int,fd,char *,buf,off_t,count)
-static __inline__ _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-static __inline__ _syscall1(int,dup,int,fd)
-static __inline__ _syscall3(int,execve,__const__ char *,file,char **,argv,char **,envp)
-static __inline__ _syscall3(int,open,__const__ char *,file,int,flag,int,mode)
-static __inline__ _syscall1(int,close,int,fd)
-static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-
-#include <linux/linkage.h>
-
-asmlinkage unsigned long sys_mmap(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long off);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- void __user *restorer,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
/* sysconf options, for SunOS compatibility */
#define _SC_ARG_MAX 1
diff --git a/include/asm-um/unistd.h b/include/asm-um/unistd.h
index afccfca..732c83f 100644
--- a/include/asm-um/unistd.h
+++ b/include/asm-um/unistd.h
@@ -37,34 +37,6 @@
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#endif
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-static inline int execve(const char *filename, char *const argv[],
- char *const envp[])
-{
- mm_segment_t fs;
- int ret;
-
- fs = get_fs();
- set_fs(KERNEL_DS);
- ret = um_execve(filename, argv, envp);
- set_fs(fs);
-
- if (ret >= 0)
- return ret;
-
- errno = -(long)ret;
- return -1;
-}
-
-int sys_execve(char *file, char **argv, char **env);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
-#undef __KERNEL_SYSCALLS__
#include "asm/arch/unistd.h"
#endif /* _UM_UNISTD_H_*/
diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h
index 552b7c8..737401e 100644
--- a/include/asm-v850/unistd.h
+++ b/include/asm-v850/unistd.h
@@ -387,57 +387,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
-#ifdef __KERNEL_SYSCALLS__
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-extern inline _syscall0(pid_t,setsid)
-extern inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
-extern inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
-extern inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
-extern inline _syscall1(int,dup,int,fd)
-extern inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
-extern inline _syscall3(int,open,const char *,file,int,flag,int,mode)
-extern inline _syscall1(int,close,int,fd)
-extern inline _syscall1(int,_exit,int,exitcode)
-extern inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
-
-extern inline pid_t wait(int * wait_stat)
-{
- return waitpid (-1, wait_stat, 0);
-}
-
-unsigned long sys_mmap(unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, off_t offset);
-unsigned long sys_mmap2(unsigned long addr, size_t len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff);
-struct pt_regs;
-int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs);
-int sys_pipe (int *fildes);
-struct sigaction;
-asmlinkage long sys_rt_sigaction(int sig,
- const struct sigaction __user *act,
- struct sigaction __user *oact,
- size_t sigsetsize);
-
-#endif /* __KERNEL_SYSCALLS__ */
-
/*
* "Conditional" syscalls
*/
diff --git a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h
index ab827dc..5ea84db 100644
--- a/include/asm-x86_64/ptrace.h
+++ b/include/asm-x86_64/ptrace.h
@@ -39,6 +39,8 @@
#define user_mode(regs) (!!((regs)->cs & 3))
#define user_mode_vm(regs) user_mode(regs)
#define instruction_pointer(regs) ((regs)->rip)
+#define regs_return_value(regs) ((regs)->rax)
+
extern unsigned long profile_pc(struct pt_regs *regs);
void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 6137146..777288e 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -620,10 +620,11 @@
#define __NR_move_pages 279
__SYSCALL(__NR_move_pages, sys_move_pages)
-#ifdef __KERNEL__
-
#define __NR_syscall_max __NR_move_pages
+
+#ifdef __KERNEL__
#include <linux/err.h>
+#endif
#ifndef __NO_STUBS
@@ -663,8 +664,6 @@
#define __ARCH_WANT_SYS_TIME
#define __ARCH_WANT_COMPAT_SYS_TIME
-#ifndef __KERNEL_SYSCALLS__
-
#define __syscall "syscall"
#define _syscall0(type,name) \
@@ -746,83 +745,7 @@
__syscall_return(type,__res); \
}
-#else /* __KERNEL_SYSCALLS__ */
-
-#include <linux/syscalls.h>
-#include <asm/ptrace.h>
-
-/*
- * we need this inline - forking from kernel space will result
- * in NO COPY ON WRITE (!!!), until an execve is executed. This
- * is no problem, but for the stack. This is handled by not letting
- * main() use the stack at all after fork(). Thus, no function
- * calls - which means inline code for fork too, as otherwise we
- * would use the stack upon exit from 'fork()'.
- *
- * Actually only pause and fork are needed inline, so that there
- * won't be any messing with the stack from main(), but we define
- * some others too.
- */
-#define __NR__exit __NR_exit
-
-static inline pid_t setsid(void)
-{
- return sys_setsid();
-}
-
-static inline ssize_t write(unsigned int fd, char * buf, size_t count)
-{
- return sys_write(fd, buf, count);
-}
-
-static inline ssize_t read(unsigned int fd, char * buf, size_t count)
-{
- return sys_read(fd, buf, count);
-}
-
-static inline off_t lseek(unsigned int fd, off_t offset, unsigned int origin)
-{
- return sys_lseek(fd, offset, origin);
-}
-
-static inline long dup(unsigned int fd)
-{
- return sys_dup(fd);
-}
-
-/* implemented in asm in arch/x86_64/kernel/entry.S */
-extern int execve(const char *, char * const *, char * const *);
-
-static inline long open(const char * filename, int flags, int mode)
-{
- return sys_open(filename, flags, mode);
-}
-
-static inline long close(unsigned int fd)
-{
- return sys_close(fd);
-}
-
-static inline pid_t waitpid(int pid, int * wait_stat, int flags)
-{
- return sys_wait4(pid, wait_stat, flags, NULL);
-}
-
-extern long sys_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long off);
-
-extern int sys_modify_ldt(int func, void *ptr, unsigned long bytecount);
-
-asmlinkage long sys_execve(char *name, char **argv, char **envp,
- struct pt_regs regs);
-asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp,
- void *parent_tid, void *child_tid,
- struct pt_regs regs);
-asmlinkage long sys_fork(struct pt_regs regs);
-asmlinkage long sys_vfork(struct pt_regs regs);
-asmlinkage long sys_pipe(int *fildes);
-
+#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
@@ -839,8 +762,8 @@
size_t sigsetsize);
#endif /* __ASSEMBLY__ */
-
-#endif /* __KERNEL_SYSCALLS__ */
+#endif /* __KERNEL__ */
+#endif /* __NO_STUBS */
/*
* "Conditional" syscalls
@@ -850,8 +773,4 @@
*/
#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif /* __NO_STUBS */
-
-#endif /* __KERNEL__ */
-
#endif /* _ASM_X86_64_UNISTD_H_ */
diff --git a/include/asm-xtensa/unistd.h b/include/asm-xtensa/unistd.h
index 5e1b99d..411f810 100644
--- a/include/asm-xtensa/unistd.h
+++ b/include/asm-xtensa/unistd.h
@@ -402,11 +402,6 @@
__syscall_return(type,__res); \
}
-
-#ifdef __KERNEL_SYSCALLS__
-static __inline__ _syscall3(int,execve,const char*,file,char**,argv,char**,envp)
-#endif
-
/*
* "Conditional" syscalls
*
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 9760753..6f11095 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -13,6 +13,7 @@
#include <asm/compat.h>
#include <asm/siginfo.h>
+#include <asm/signal.h>
#define compat_jiffies_to_clock_t(x) \
(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index 25423f7..ed6c0fe 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -54,7 +54,7 @@
struct tty_struct *vc_tty; /* TTY we are attached to */
/* data for manual vt switching */
struct vt_mode vt_mode;
- int vt_pid;
+ struct pid *vt_pid;
int vt_newvt;
wait_queue_head_t paste_wait;
/* mode flags */
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2e29a2e..91c0b2a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -684,7 +684,8 @@
struct fown_struct {
rwlock_t lock; /* protects pid, uid, euid fields */
- int pid; /* pid or -pgrp where SIGIO should be sent */
+ struct pid *pid; /* pid or -pgrp where SIGIO should be sent */
+ enum pid_type pid_type; /* Kind of process group SIGIO should be sent to */
uid_t uid, euid; /* uid/euid of process setting the owner */
int signum; /* posix.1b rt signal to be delivered on IO */
};
@@ -880,8 +881,10 @@
/* only for net: no internal synchronization */
extern void __kill_fasync(struct fasync_struct *, int, int);
+extern int __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
extern int f_setown(struct file *filp, unsigned long arg, int force);
extern void f_delown(struct file *filp);
+extern pid_t f_getown(struct file *filp);
extern int send_sigurg(struct fown_struct *fown);
/*
diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 690c428..9869ef3 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -31,5 +31,6 @@
extern struct gen_pool *gen_pool_create(int, int);
extern int gen_pool_add(struct gen_pool *, unsigned long, size_t, int);
+extern void gen_pool_destroy(struct gen_pool *);
extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 60aac2c..33c5daa 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -4,7 +4,9 @@
#include <linux/file.h>
#include <linux/rcupdate.h>
#include <linux/irqflags.h>
+#include <linux/utsname.h>
#include <linux/lockdep.h>
+#include <linux/ipc.h>
#define INIT_FDTABLE \
{ \
@@ -68,6 +70,15 @@
.session = 1, \
}
+extern struct nsproxy init_nsproxy;
+#define INIT_NSPROXY(nsproxy) { \
+ .count = ATOMIC_INIT(1), \
+ .nslock = SPIN_LOCK_UNLOCKED, \
+ .uts_ns = &init_uts_ns, \
+ .namespace = NULL, \
+ INIT_IPC_NS(ipc_ns) \
+}
+
#define INIT_SIGHAND(sighand) { \
.count = ATOMIC_INIT(1), \
.action = { { { .sa_handler = NULL, } }, }, \
@@ -117,6 +128,7 @@
.files = &init_files, \
.signal = &init_signals, \
.sighand = &init_sighand, \
+ .nsproxy = &init_nsproxy, \
.pending = { \
.list = LIST_HEAD_INIT(tsk.pending.list), \
.signal = {{0}}}, \
diff --git a/include/linux/input.h b/include/linux/input.h
index b3253ab..5770105 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -349,6 +349,9 @@
#define KEY_BATTERY 236
+#define KEY_BLUETOOTH 237
+#define KEY_WLAN 238
+
#define KEY_UNKNOWN 240
#define BTN_MISC 0x100
@@ -645,6 +648,7 @@
#define BUS_USB 0x03
#define BUS_HIL 0x04
#define BUS_BLUETOOTH 0x05
+#define BUS_VIRTUAL 0x06
#define BUS_ISA 0x10
#define BUS_I8042 0x11
@@ -667,98 +671,167 @@
/*
* Structures used in ioctls to upload effects to a device
- * The first structures are not passed directly by using ioctls.
- * They are sub-structures of the actually sent structure (called ff_effect)
+ * They are pieces of a bigger structure (called ff_effect)
*/
+/*
+ * All duration values are expressed in ms. Values above 32767 ms (0x7fff)
+ * should not be used and have unspecified results.
+ */
+
+/**
+ * struct ff_replay - defines scheduling of the effect
+ * @length: duration of the effect
+ * @delay: delay before effect should start playing
+ */
struct ff_replay {
- __u16 length; /* Duration of an effect in ms. All other times are also expressed in ms */
- __u16 delay; /* Time to wait before to start playing an effect */
+ __u16 length;
+ __u16 delay;
};
+/**
+ * struct ff_trigger - defines what triggers the effect
+ * @button: number of the button triggering the effect
+ * @interval: controls how soon the effect can be re-triggered
+ */
struct ff_trigger {
- __u16 button; /* Number of button triggering an effect */
- __u16 interval; /* Time to wait before an effect can be re-triggered (ms) */
+ __u16 button;
+ __u16 interval;
};
+/**
+ * struct ff_envelope - generic effect envelope
+ * @attack_length: duration of the attack (ms)
+ * @attack_level: level at the beginning of the attack
+ * @fade_length: duration of fade (ms)
+ * @fade_level: level at the end of fade
+ *
+ * The @attack_level and @fade_level are absolute values; when applying
+ * envelope force-feedback core will convert to positive/negative
+ * value based on polarity of the default level of the effect.
+ * Valid range for the attack and fade levels is 0x0000 - 0x7fff
+ */
struct ff_envelope {
- __u16 attack_length; /* Duration of attack (ms) */
- __u16 attack_level; /* Level at beginning of attack */
- __u16 fade_length; /* Duration of fade (ms) */
- __u16 fade_level; /* Level at end of fade */
+ __u16 attack_length;
+ __u16 attack_level;
+ __u16 fade_length;
+ __u16 fade_level;
};
-/* FF_CONSTANT */
+/**
+ * struct ff_constant_effect - defines parameters of a constant effect
+ * @level: strength of the effect; may be negative
+ * @envelope: envelope data
+ */
struct ff_constant_effect {
- __s16 level; /* Strength of effect. Negative values are OK */
+ __s16 level;
struct ff_envelope envelope;
};
-/* FF_RAMP */
+/**
+ * struct ff_ramp_effect - defines parameters of a ramp effect
+ * @start_level: beginning strength of the effect; may be negative
+ * @end_level: final strength of the effect; may be negative
+ * @envelope: envelope data
+ */
struct ff_ramp_effect {
__s16 start_level;
__s16 end_level;
struct ff_envelope envelope;
};
-/* FF_SPRING of FF_FRICTION */
+/**
+ * struct ff_condition_effect - defines a spring or friction effect
+ * @right_saturation: maximum level when joystick moved all way to the right
+ * @left_saturation: same for the left side
+ * @right_coeff: controls how fast the force grows when the joystick moves
+ * to the right
+ * @left_coeff: same for the left side
+ * @deadband: size of the dead zone, where no force is produced
+ * @center: position of the dead zone
+ */
struct ff_condition_effect {
- __u16 right_saturation; /* Max level when joystick is on the right */
- __u16 left_saturation; /* Max level when joystick in on the left */
+ __u16 right_saturation;
+ __u16 left_saturation;
- __s16 right_coeff; /* Indicates how fast the force grows when the
- joystick moves to the right */
- __s16 left_coeff; /* Same for left side */
+ __s16 right_coeff;
+ __s16 left_coeff;
- __u16 deadband; /* Size of area where no force is produced */
- __s16 center; /* Position of dead zone */
-
+ __u16 deadband;
+ __s16 center;
};
-/* FF_PERIODIC */
+/**
+ * struct ff_periodic_effect - defines parameters of a periodic effect
+ * @waveform: kind of the effect (wave)
+ * @period: period of the wave (ms)
+ * @magnitude: peak value
+ * @offset: mean value of the wave (roughly)
+ * @phase: 'horizontal' shift
+ * @envelope: envelope data
+ * @custom_len: number of samples (FF_CUSTOM only)
+ * @custom_data: buffer of samples (FF_CUSTOM only)
+ *
+ * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,
+ * FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined
+ * for the time being as no driver supports it yet.
+ *
+ * Note: the data pointed by custom_data is copied by the driver.
+ * You can therefore dispose of the memory after the upload/update.
+ */
struct ff_periodic_effect {
- __u16 waveform; /* Kind of wave (sine, square...) */
- __u16 period; /* in ms */
- __s16 magnitude; /* Peak value */
- __s16 offset; /* Mean value of wave (roughly) */
- __u16 phase; /* 'Horizontal' shift */
+ __u16 waveform;
+ __u16 period;
+ __s16 magnitude;
+ __s16 offset;
+ __u16 phase;
struct ff_envelope envelope;
-/* Only used if waveform == FF_CUSTOM */
- __u32 custom_len; /* Number of samples */
- __s16 *custom_data; /* Buffer of samples */
-/* Note: the data pointed by custom_data is copied by the driver. You can
- * therefore dispose of the memory after the upload/update */
+ __u32 custom_len;
+ __s16 *custom_data;
};
-/* FF_RUMBLE */
-/* Some rumble pads have two motors of different weight.
- strong_magnitude represents the magnitude of the vibration generated
- by the heavy motor.
-*/
+/**
+ * struct ff_rumble_effect - defines parameters of a periodic effect
+ * @strong_magnitude: magnitude of the heavy motor
+ * @weak_magnitude: magnitude of the light one
+ *
+ * Some rumble pads have two motors of different weight. Strong_magnitude
+ * represents the magnitude of the vibration generated by the heavy one.
+ */
struct ff_rumble_effect {
- __u16 strong_magnitude; /* Magnitude of the heavy motor */
- __u16 weak_magnitude; /* Magnitude of the light one */
+ __u16 strong_magnitude;
+ __u16 weak_magnitude;
};
-/*
- * Structure sent through ioctl from the application to the driver
+/**
+ * struct ff_effect - defines force feedback effect
+ * @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,
+ * FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM)
+ * @id: an unique id assigned to an effect
+ * @direction: direction of the effect
+ * @trigger: trigger conditions (struct ff_trigger)
+ * @replay: scheduling of the effect (struct ff_replay)
+ * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,
+ * ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further
+ * defining effect parameters
+ *
+ * This structure is sent through ioctl from the application to the driver.
+ * To create a new effect aplication should set its @id to -1; the kernel
+ * will return assigned @id which can later be used to update or delete
+ * this effect.
+ *
+ * Direction of the effect is encoded as follows:
+ * 0 deg -> 0x0000 (down)
+ * 90 deg -> 0x4000 (left)
+ * 180 deg -> 0x8000 (up)
+ * 270 deg -> 0xC000 (right)
*/
struct ff_effect {
__u16 type;
-/* Following field denotes the unique id assigned to an effect.
- * If user sets if to -1, a new effect is created, and its id is returned in the same field
- * Else, the user sets it to the effect id it wants to update.
- */
__s16 id;
-
- __u16 direction; /* Direction. 0 deg -> 0x0000 (down)
- 90 deg -> 0x4000 (left)
- 180 deg -> 0x8000 (up)
- 270 deg -> 0xC000 (right)
- */
-
+ __u16 direction;
struct ff_trigger trigger;
struct ff_replay replay;
@@ -784,6 +857,9 @@
#define FF_INERTIA 0x56
#define FF_RAMP 0x57
+#define FF_EFFECT_MIN FF_RUMBLE
+#define FF_EFFECT_MAX FF_RAMP
+
/*
* Force feedback periodic effect types
*/
@@ -795,6 +871,9 @@
#define FF_SAW_DOWN 0x5c
#define FF_CUSTOM 0x5d
+#define FF_WAVEFORM_MIN FF_SQUARE
+#define FF_WAVEFORM_MAX FF_CUSTOM
+
/*
* Set ff device properties
*/
@@ -864,12 +943,13 @@
unsigned long sndbit[NBITS(SND_MAX)];
unsigned long ffbit[NBITS(FF_MAX)];
unsigned long swbit[NBITS(SW_MAX)];
- int ff_effects_max;
unsigned int keycodemax;
unsigned int keycodesize;
void *keycode;
+ struct ff_device *ff;
+
unsigned int repeat_key;
struct timer_list timer;
@@ -895,8 +975,6 @@
void (*close)(struct input_dev *dev);
int (*flush)(struct input_dev *dev, struct file *file);
int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
- int (*upload_effect)(struct input_dev *dev, struct ff_effect *effect);
- int (*erase_effect)(struct input_dev *dev, int effect_id);
struct input_handle *grab;
@@ -904,9 +982,6 @@
unsigned int users;
struct class_device cdev;
- struct device *dev; /* will be removed soon */
-
- int dynalloc; /* temporarily */
struct list_head h_list;
struct list_head node;
@@ -985,16 +1060,16 @@
void *private;
void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
- struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id);
+ struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);
void (*disconnect)(struct input_handle *handle);
void (*start)(struct input_handle *handle);
const struct file_operations *fops;
int minor;
- char *name;
+ const char *name;
- struct input_device_id *id_table;
- struct input_device_id *blacklist;
+ const struct input_device_id *id_table;
+ const struct input_device_id *blacklist;
struct list_head h_list;
struct list_head node;
@@ -1005,7 +1080,7 @@
void *private;
int open;
- char *name;
+ const char *name;
struct input_dev *dev;
struct input_handler *handler;
@@ -1019,12 +1094,6 @@
#define to_handle(n) container_of(n,struct input_handle,d_node)
#define to_handle_h(n) container_of(n,struct input_handle,h_node)
-static inline void init_input_dev(struct input_dev *dev)
-{
- INIT_LIST_HEAD(&dev->h_list);
- INIT_LIST_HEAD(&dev->node);
-}
-
struct input_dev *input_allocate_device(void);
void input_free_device(struct input_dev *dev);
@@ -1041,7 +1110,7 @@
int input_register_device(struct input_dev *);
void input_unregister_device(struct input_dev *);
-void input_register_handler(struct input_handler *);
+int input_register_handler(struct input_handler *);
void input_unregister_handler(struct input_handler *);
int input_grab_device(struct input_handle *);
@@ -1070,11 +1139,6 @@
input_event(dev, EV_ABS, code, value);
}
-static inline void input_report_ff(struct input_dev *dev, unsigned int code, int value)
-{
- input_event(dev, EV_FF, code, value);
-}
-
static inline void input_report_ff_status(struct input_dev *dev, unsigned int code, int value)
{
input_event(dev, EV_FF_STATUS, code, value);
@@ -1108,5 +1172,61 @@
extern struct class input_class;
+/**
+ * struct ff_device - force-feedback part of an input device
+ * @upload: Called to upload an new effect into device
+ * @erase: Called to erase an effect from device
+ * @playback: Called to request device to start playing specified effect
+ * @set_gain: Called to set specified gain
+ * @set_autocenter: Called to auto-center device
+ * @destroy: called by input core when parent input device is being
+ * destroyed
+ * @private: driver-specific data, will be freed automatically
+ * @ffbit: bitmap of force feedback capabilities truly supported by
+ * device (not emulated like ones in input_dev->ffbit)
+ * @mutex: mutex for serializing access to the device
+ * @max_effects: maximum number of effects supported by device
+ * @effects: pointer to an array of effects currently loaded into device
+ * @effect_owners: array of effect owners; when file handle owning
+ * an effect gets closed the effcet is automatically erased
+ *
+ * Every force-feedback device must implement upload() and playback()
+ * methods; erase() is optional. set_gain() and set_autocenter() need
+ * only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
+ * bits.
+ */
+struct ff_device {
+ int (*upload)(struct input_dev *dev, struct ff_effect *effect,
+ struct ff_effect *old);
+ int (*erase)(struct input_dev *dev, int effect_id);
+
+ int (*playback)(struct input_dev *dev, int effect_id, int value);
+ void (*set_gain)(struct input_dev *dev, u16 gain);
+ void (*set_autocenter)(struct input_dev *dev, u16 magnitude);
+
+ void (*destroy)(struct ff_device *);
+
+ void *private;
+
+ unsigned long ffbit[NBITS(FF_MAX)];
+
+ struct mutex mutex;
+
+ int max_effects;
+ struct ff_effect *effects;
+ struct file *effect_owners[];
+};
+
+int input_ff_create(struct input_dev *dev, int max_effects);
+void input_ff_destroy(struct input_dev *dev);
+
+int input_ff_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+
+int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, struct file *file);
+int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file);
+
+int input_ff_create_memless(struct input_dev *dev, void *data,
+ int (*play_effect)(struct input_dev *, void *, struct ff_effect *));
+
#endif
#endif
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index b291189..d9e2b3f 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -2,6 +2,7 @@
#define _LINUX_IPC_H
#include <linux/types.h>
+#include <linux/kref.h>
#define IPC_PRIVATE ((__kernel_key_t) 0)
@@ -68,6 +69,59 @@
void *security;
};
+struct ipc_ids;
+struct ipc_namespace {
+ struct kref kref;
+ struct ipc_ids *ids[3];
+
+ int sem_ctls[4];
+ int used_sems;
+
+ int msg_ctlmax;
+ int msg_ctlmnb;
+ int msg_ctlmni;
+
+ size_t shm_ctlmax;
+ size_t shm_ctlall;
+ int shm_ctlmni;
+ int shm_tot;
+};
+
+extern struct ipc_namespace init_ipc_ns;
+
+#ifdef CONFIG_SYSVIPC
+#define INIT_IPC_NS(ns) .ns = &init_ipc_ns,
+#else
+#define INIT_IPC_NS(ns)
+#endif
+
+#ifdef CONFIG_IPC_NS
+extern void free_ipc_ns(struct kref *kref);
+extern int copy_ipcs(unsigned long flags, struct task_struct *tsk);
+extern int unshare_ipcs(unsigned long flags, struct ipc_namespace **ns);
+#else
+static inline int copy_ipcs(unsigned long flags, struct task_struct *tsk)
+{
+ return 0;
+}
+#endif
+
+static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
+{
+#ifdef CONFIG_IPC_NS
+ if (ns)
+ kref_get(&ns->kref);
+#endif
+ return ns;
+}
+
+static inline void put_ipc_ns(struct ipc_namespace *ns)
+{
+#ifdef CONFIG_IPC_NS
+ kref_put(&ns->kref, free_ipc_ns);
+#endif
+}
+
#endif /* __KERNEL__ */
#endif /* _LINUX_IPC_H */
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 8bf6702..ac4c055 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -77,6 +77,12 @@
/* location of the probe point */
kprobe_opcode_t *addr;
+ /* Allow user to indicate symbol name of the probe point */
+ char *symbol_name;
+
+ /* Offset into the symbol */
+ unsigned int offset;
+
/* Called before addr is executed. */
kprobe_pre_handler_t pre_handler;
@@ -196,7 +202,7 @@
struct kretprobe_instance *get_free_rp_inst(struct kretprobe *rp);
void add_rp_inst(struct kretprobe_instance *ri);
void kprobe_flush_task(struct task_struct *tk);
-void recycle_rp_inst(struct kretprobe_instance *ri);
+void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head);
#else /* CONFIG_KPROBES */
#define __kprobes /**/
diff --git a/include/linux/libps2.h b/include/linux/libps2.h
index 08a450a..f6f301e 100644
--- a/include/linux/libps2.h
+++ b/include/linux/libps2.h
@@ -47,5 +47,6 @@
int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data);
int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data);
void ps2_cmd_aborted(struct ps2dev *ps2dev);
+int ps2_is_keyboard_id(char id);
#endif /* _LIBPS2_H */
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index b054deb..81e3a18 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -30,7 +30,7 @@
* Functions exported by the lockd module
*/
extern int nlmclnt_proc(struct inode *, int, struct file_lock *);
-extern int lockd_up(void);
+extern int lockd_up(int proto);
extern void lockd_down(void);
#endif /* LINUX_LOCKD_BIND_H */
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 0d92c46..47b7dbd 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -80,7 +80,7 @@
/*
* Memory chunk for NLM client RPC request.
*/
-#define NLMCLNT_OHSIZE (sizeof(system_utsname.nodename)+10)
+#define NLMCLNT_OHSIZE (sizeof(utsname()->nodename)+10)
struct nlm_rqst {
unsigned int a_flags; /* initial RPC task flags */
struct nlm_host * a_host; /* host handle */
diff --git a/include/linux/module.h b/include/linux/module.h
index 2c59917..4b2d809 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -320,6 +320,8 @@
/* Am I GPL-compatible */
int license_gplok;
+ unsigned int taints; /* same bits as kernel:tainted */
+
#ifdef CONFIG_MODULE_UNLOAD
/* Reference counts */
struct module_ref ref[NR_CPUS];
diff --git a/include/linux/namespace.h b/include/linux/namespace.h
index 3abc8e3..d137009 100644
--- a/include/linux/namespace.h
+++ b/include/linux/namespace.h
@@ -4,6 +4,7 @@
#include <linux/mount.h>
#include <linux/sched.h>
+#include <linux/nsproxy.h>
struct namespace {
atomic_t count;
@@ -26,11 +27,8 @@
static inline void exit_namespace(struct task_struct *p)
{
- struct namespace *namespace = p->namespace;
+ struct namespace *namespace = p->nsproxy->namespace;
if (namespace) {
- task_lock(p);
- p->namespace = NULL;
- task_unlock(p);
put_namespace(namespace);
}
}
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 2dcad29..e1dbc86 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -140,6 +140,11 @@
int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
#endif
+enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
+int nfsd_vers(int vers, enum vers_op change);
+void nfsd_reset_versions(void);
+int nfsd_create_serv(void);
+
/*
* NFSv4 State
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h
index 31a3cb6..069257e 100644
--- a/include/linux/nfsd/nfsfh.h
+++ b/include/linux/nfsd/nfsfh.h
@@ -290,8 +290,9 @@
* vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once
* so, any changes here should be reflected there.
*/
+
static inline void
-fh_lock(struct svc_fh *fhp)
+fh_lock_nested(struct svc_fh *fhp, unsigned int subclass)
{
struct dentry *dentry = fhp->fh_dentry;
struct inode *inode;
@@ -310,11 +311,17 @@
}
inode = dentry->d_inode;
- mutex_lock(&inode->i_mutex);
+ mutex_lock_nested(&inode->i_mutex, subclass);
fill_pre_wcc(fhp);
fhp->fh_locked = 1;
}
+static inline void
+fh_lock(struct svc_fh *fhp)
+{
+ fh_lock_nested(fhp, I_MUTEX_NORMAL);
+}
+
/*
* Unlock a file handle/inode
*/
diff --git a/include/linux/nfsd/syscall.h b/include/linux/nfsd/syscall.h
index dae0fae..8bcddcc 100644
--- a/include/linux/nfsd/syscall.h
+++ b/include/linux/nfsd/syscall.h
@@ -38,21 +38,6 @@
#define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */
#define NFSCTL_GETFS 8 /* get an fh by path with max FH len */
-/*
- * Macros used to set version
- */
-#define NFSCTL_VERSET(_cltbits, _v) ((_cltbits) |= (1 << (_v)))
-#define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << (_v)))
-#define NFSCTL_VERISSET(_cltbits, _v) ((_cltbits) & (1 << (_v)))
-
-#if defined(CONFIG_NFSD_V4)
-#define NFSCTL_VERALL (0x1c /* 0b011100 */)
-#elif defined(CONFIG_NFSD_V3)
-#define NFSCTL_VERALL (0x0c /* 0b001100 */)
-#else
-#define NFSCTL_VERALL (0x04 /* 0b000100 */)
-#endif
-
/* SVC */
struct nfsctl_svc {
unsigned short svc_port;
@@ -134,8 +119,6 @@
extern int exp_export(struct nfsctl_export *nxp);
extern int exp_unexport(struct nfsctl_export *nxp);
-extern unsigned int nfsd_versbits;
-
#endif /* __KERNEL__ */
#endif /* NFSD_SYSCALL_H */
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index 1a9ef3e..5dce5c2 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -352,6 +352,7 @@
#define node_possible(node) node_isset((node), node_possible_map)
#define first_online_node first_node(node_online_map)
#define next_online_node(nid) next_node((nid), node_online_map)
+int highest_possible_node_id(void);
#else
#define num_online_nodes() 1
#define num_possible_nodes() 1
@@ -359,6 +360,7 @@
#define node_possible(node) ((node) == 0)
#define first_online_node 0
#define next_online_node(nid) (MAX_NUMNODES)
+#define highest_possible_node_id() 0
#endif
#define any_online_node(mask) \
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
new file mode 100644
index 0000000..f6baecd
--- /dev/null
+++ b/include/linux/nsproxy.h
@@ -0,0 +1,52 @@
+#ifndef _LINUX_NSPROXY_H
+#define _LINUX_NSPROXY_H
+
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+
+struct namespace;
+struct uts_namespace;
+struct ipc_namespace;
+
+/*
+ * A structure to contain pointers to all per-process
+ * namespaces - fs (mount), uts, network, sysvipc, etc.
+ *
+ * 'count' is the number of tasks holding a reference.
+ * The count for each namespace, then, will be the number
+ * of nsproxies pointing to it, not the number of tasks.
+ *
+ * The nsproxy is shared by tasks which share all namespaces.
+ * As soon as a single namespace is cloned or unshared, the
+ * nsproxy is copied.
+ */
+struct nsproxy {
+ atomic_t count;
+ spinlock_t nslock;
+ struct uts_namespace *uts_ns;
+ struct ipc_namespace *ipc_ns;
+ struct namespace *namespace;
+};
+extern struct nsproxy init_nsproxy;
+
+struct nsproxy *dup_namespaces(struct nsproxy *orig);
+int copy_namespaces(int flags, struct task_struct *tsk);
+void get_task_namespaces(struct task_struct *tsk);
+void free_nsproxy(struct nsproxy *ns);
+
+static inline void put_nsproxy(struct nsproxy *ns)
+{
+ if (atomic_dec_and_test(&ns->count)) {
+ free_nsproxy(ns);
+ }
+}
+
+static inline void exit_task_namespaces(struct task_struct *p)
+{
+ struct nsproxy *ns = p->nsproxy;
+ if (ns) {
+ put_nsproxy(ns);
+ p->nsproxy = NULL;
+ }
+}
+#endif
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 93da7e2..17b9e04 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -68,6 +68,8 @@
extern struct task_struct *FASTCALL(get_pid_task(struct pid *pid,
enum pid_type));
+extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type);
+
/*
* attach_pid() and detach_pid() must be called with the tasklist_lock
* write-held.
@@ -89,33 +91,42 @@
* Lookup a PID in the hash table, and return with it's count elevated.
*/
extern struct pid *find_get_pid(int nr);
+extern struct pid *find_ge_pid(int nr);
extern struct pid *alloc_pid(void);
extern void FASTCALL(free_pid(struct pid *pid));
-#define pid_next(task, type) \
- ((task)->pids[(type)].node.next)
-
-#define pid_next_task(task, type) \
- hlist_entry(pid_next(task, type), struct task_struct, \
- pids[(type)].node)
+static inline pid_t pid_nr(struct pid *pid)
+{
+ pid_t nr = 0;
+ if (pid)
+ nr = pid->nr;
+ return nr;
+}
-/* We could use hlist_for_each_entry_rcu here but it takes more arguments
- * than the do_each_task_pid/while_each_task_pid. So we roll our own
- * to preserve the existing interface.
- */
-#define do_each_task_pid(who, type, task) \
- if ((task = find_task_by_pid_type(type, who))) { \
- prefetch(pid_next(task, type)); \
- do {
+#define do_each_task_pid(who, type, task) \
+ do { \
+ struct hlist_node *pos___; \
+ struct pid *pid___ = find_pid(who); \
+ if (pid___ != NULL) \
+ hlist_for_each_entry_rcu((task), pos___, \
+ &pid___->tasks[type], pids[type].node) {
-#define while_each_task_pid(who, type, task) \
- } while (pid_next(task, type) && ({ \
- task = pid_next_task(task, type); \
- rcu_dereference(task); \
- prefetch(pid_next(task, type)); \
- 1; }) ); \
- }
+#define while_each_task_pid(who, type, task) \
+ } \
+ } while (0)
+
+
+#define do_each_pid_task(pid, type, task) \
+ do { \
+ struct hlist_node *pos___; \
+ if (pid != NULL) \
+ hlist_for_each_entry_rcu((task), pos___, \
+ &pid->tasks[type], pids[type].node) {
+
+#define while_each_pid_task(pid, type, task) \
+ } \
+ } while (0)
#endif /* _LINUX_PID_H */
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 57f70bc..87dec8f 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -244,13 +244,15 @@
extern void kclist_add(struct kcore_list *, void *, size_t);
#endif
+union proc_op {
+ int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
+ int (*proc_read)(struct task_struct *task, char *page);
+};
+
struct proc_inode {
struct pid *pid;
int fd;
- union {
- int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
- int (*proc_read)(struct task_struct *task, char *page);
- } op;
+ union proc_op op;
struct proc_dir_entry *pde;
struct inode vfs_inode;
};
diff --git a/include/linux/pspace.h b/include/linux/pspace.h
new file mode 100644
index 0000000..91d48b8
--- /dev/null
+++ b/include/linux/pspace.h
@@ -0,0 +1,23 @@
+#ifndef _LINUX_PSPACE_H
+#define _LINUX_PSPACE_H
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/threads.h>
+#include <linux/pid.h>
+
+struct pidmap {
+ atomic_t nr_free;
+ void *page;
+};
+
+#define PIDMAP_ENTRIES ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8)
+
+struct pspace {
+ struct pidmap pidmap[PIDMAP_ENTRIES];
+ int last_pid;
+};
+
+extern struct pspace init_pspace;
+
+#endif /* _LINUX_PSPACE_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7ef899c..3853023 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -24,6 +24,8 @@
#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */
#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
#define CLONE_STOPPED 0x02000000 /* Start in stopped state */
+#define CLONE_NEWUTS 0x04000000 /* New utsname group? */
+#define CLONE_NEWIPC 0x08000000 /* New ipcs */
/*
* Scheduling policies
@@ -118,7 +120,6 @@
extern unsigned long total_forks;
extern int nr_threads;
-extern int last_pid;
DECLARE_PER_CPU(unsigned long, process_counts);
extern int nr_processes(void);
extern unsigned long nr_running(void);
@@ -239,7 +240,7 @@
extern signed long schedule_timeout_uninterruptible(signed long timeout);
asmlinkage void schedule(void);
-struct namespace;
+struct nsproxy;
/* Maximum number of active map areas.. This is a random (large) number */
#define DEFAULT_MAX_MAP_COUNT 65536
@@ -754,6 +755,7 @@
struct audit_context; /* See audit.c */
struct mempolicy;
struct pipe_inode_info;
+struct uts_namespace;
enum sleep_type {
SLEEP_NORMAL,
@@ -897,8 +899,8 @@
struct fs_struct *fs;
/* open file information */
struct files_struct *files;
-/* namespace */
- struct namespace *namespace;
+/* namespaces */
+ struct nsproxy *nsproxy;
/* signal handlers */
struct signal_struct *signal;
struct sighand_struct *sighand;
@@ -1020,6 +1022,26 @@
return tsk->signal->pgrp;
}
+static inline struct pid *task_pid(struct task_struct *task)
+{
+ return task->pids[PIDTYPE_PID].pid;
+}
+
+static inline struct pid *task_tgid(struct task_struct *task)
+{
+ return task->group_leader->pids[PIDTYPE_PID].pid;
+}
+
+static inline struct pid *task_pgrp(struct task_struct *task)
+{
+ return task->group_leader->pids[PIDTYPE_PGID].pid;
+}
+
+static inline struct pid *task_session(struct task_struct *task)
+{
+ return task->group_leader->pids[PIDTYPE_SID].pid;
+}
+
/**
* pid_alive - check that a task structure is not stale
* @p: Task structure to be checked.
@@ -1043,6 +1065,8 @@
return tsk->pid == 1;
}
+extern struct pid *cad_pid;
+
extern void free_task(struct task_struct *tsk);
#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
@@ -1247,10 +1271,15 @@
extern int send_group_sig_info(int, struct siginfo *, struct task_struct *);
extern int force_sigsegv(int, struct task_struct *);
extern int force_sig_info(int, struct siginfo *, struct task_struct *);
+extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
+extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
+extern int kill_pid_info_as_uid(int, struct siginfo *, struct pid *, uid_t, uid_t, u32);
+extern int kill_pgrp(struct pid *pid, int sig, int priv);
+extern int kill_pid(struct pid *pid, int sig, int priv);
extern int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp);
extern int kill_pg_info(int, struct siginfo *, pid_t);
extern int kill_proc_info(int, struct siginfo *, pid_t);
-extern int kill_proc_info_as_uid(int, struct siginfo *, pid_t, uid_t, uid_t, u32);
extern void do_notify_parent(struct task_struct *, int);
extern void force_sig(int, struct task_struct *);
extern void force_sig_specific(int, struct task_struct *);
@@ -1265,6 +1294,11 @@
extern int do_sigaction(int, struct k_sigaction *, struct k_sigaction *);
extern int do_sigaltstack(const stack_t __user *, stack_t __user *, unsigned long);
+static inline int kill_cad_pid(int sig, int priv)
+{
+ return kill_pid(cad_pid, sig, priv);
+}
+
/* These can be the second arg to send_sig_info/send_group_sig_info. */
#define SEND_SIG_NOINFO ((struct siginfo *) 0)
#define SEND_SIG_PRIV ((struct siginfo *) 1)
@@ -1358,6 +1392,17 @@
/* de_thread depends on thread_group_leader not being a pid based check */
#define thread_group_leader(p) (p == p->group_leader)
+/* Do to the insanities of de_thread it is possible for a process
+ * to have the pid of the thread group leader without actually being
+ * the thread group leader. For iteration through the pids in proc
+ * all we care about is that we have a task with the appropriate
+ * pid, we don't actually care if we have the right task.
+ */
+static inline int has_group_leader_pid(struct task_struct *p)
+{
+ return p->pid == p->tgid;
+}
+
static inline struct task_struct *next_thread(const struct task_struct *p)
{
return list_entry(rcu_dereference(p->thread_group.next),
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 6348e83..c906931 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -217,5 +217,8 @@
#define SERIO_LKKBD 0x28
#define SERIO_ELO 0x29
#define SERIO_MICROTOUCH 0x30
+#define SERIO_PENMOUNT 0x31
+#define SERIO_TOUCHRIGHT 0x32
+#define SERIO_TOUCHWIN 0x33
#endif
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 73140ee..4ebcdf9 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -18,6 +18,30 @@
#include <linux/mm.h>
/*
+ * This is the RPC server thread function prototype
+ */
+typedef void (*svc_thread_fn)(struct svc_rqst *);
+
+/*
+ *
+ * RPC service thread pool.
+ *
+ * Pool of threads and temporary sockets. Generally there is only
+ * a single one of these per RPC service, but on NUMA machines those
+ * services that can benefit from it (i.e. nfs but not lockd) will
+ * have one pool per NUMA node. This optimisation reduces cross-
+ * node traffic on multi-node NUMA NFS servers.
+ */
+struct svc_pool {
+ unsigned int sp_id; /* pool id; also node id on NUMA */
+ spinlock_t sp_lock; /* protects all fields */
+ struct list_head sp_threads; /* idle server threads */
+ struct list_head sp_sockets; /* pending sockets */
+ unsigned int sp_nrthreads; /* # of threads in pool */
+ struct list_head sp_all_threads; /* all server threads */
+} ____cacheline_aligned_in_smp;
+
+/*
* RPC service.
*
* An RPC service is a ``daemon,'' possibly multithreaded, which
@@ -28,8 +52,6 @@
* We currently do not support more than one RPC program per daemon.
*/
struct svc_serv {
- struct list_head sv_threads; /* idle server threads */
- struct list_head sv_sockets; /* pending sockets */
struct svc_program * sv_program; /* RPC program */
struct svc_stat * sv_stats; /* RPC statistics */
spinlock_t sv_lock;
@@ -40,11 +62,36 @@
struct list_head sv_permsocks; /* all permanent sockets */
struct list_head sv_tempsocks; /* all temporary sockets */
int sv_tmpcnt; /* count of temporary sockets */
+ struct timer_list sv_temptimer; /* timer for aging temporary sockets */
char * sv_name; /* service name */
+
+ unsigned int sv_nrpools; /* number of thread pools */
+ struct svc_pool * sv_pools; /* array of thread pools */
+
+ void (*sv_shutdown)(struct svc_serv *serv);
+ /* Callback to use when last thread
+ * exits.
+ */
+
+ struct module * sv_module; /* optional module to count when
+ * adding threads */
+ svc_thread_fn sv_function; /* main function for threads */
+ int sv_kill_signal; /* signal to kill threads */
};
/*
+ * We use sv_nrthreads as a reference count. svc_destroy() drops
+ * this refcount, so we need to bump it up around operations that
+ * change the number of threads. Horrible, but there it is.
+ * Should be called with the BKL held.
+ */
+static inline void svc_get(struct svc_serv *serv)
+{
+ serv->sv_nrthreads++;
+}
+
+/*
* Maximum payload size supported by a kernel RPC server.
* This is use to determine the max number of pages nfsd is
* willing to return in a single READ operation.
@@ -127,11 +174,13 @@
*/
struct svc_rqst {
struct list_head rq_list; /* idle list */
+ struct list_head rq_all; /* all threads list */
struct svc_sock * rq_sock; /* socket */
struct sockaddr_in rq_addr; /* peer address */
int rq_addrlen;
struct svc_serv * rq_server; /* RPC service definition */
+ struct svc_pool * rq_pool; /* thread pool */
struct svc_procedure * rq_procinfo; /* procedure info */
struct auth_ops * rq_authop; /* authentication flavour */
struct svc_cred rq_cred; /* auth info */
@@ -180,6 +229,7 @@
* to prevent encrypting page
* cache pages */
wait_queue_head_t rq_wait; /* synchronization */
+ struct task_struct *rq_task; /* service thread */
};
/*
@@ -321,20 +371,21 @@
};
/*
- * This is the RPC server thread function prototype
- */
-typedef void (*svc_thread_fn)(struct svc_rqst *);
-
-/*
* Function prototypes.
*/
-struct svc_serv * svc_create(struct svc_program *, unsigned int);
+struct svc_serv * svc_create(struct svc_program *, unsigned int,
+ void (*shutdown)(struct svc_serv*));
int svc_create_thread(svc_thread_fn, struct svc_serv *);
void svc_exit_thread(struct svc_rqst *);
+struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int,
+ void (*shutdown)(struct svc_serv*),
+ svc_thread_fn, int sig, struct module *);
+int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
void svc_destroy(struct svc_serv *);
-int svc_process(struct svc_serv *, struct svc_rqst *);
+int svc_process(struct svc_rqst *);
int svc_register(struct svc_serv *, int, unsigned short);
void svc_wake_up(struct svc_serv *);
void svc_reserve(struct svc_rqst *rqstp, int space);
+struct svc_pool * svc_pool_for_cpu(struct svc_serv *serv, int cpu);
#endif /* SUNRPC_SVC_H */
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index b4acb3d..4c29615 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -20,8 +20,9 @@
struct socket * sk_sock; /* berkeley socket layer */
struct sock * sk_sk; /* INET layer */
+ struct svc_pool * sk_pool; /* current pool iff queued */
struct svc_serv * sk_server; /* service for this socket */
- unsigned int sk_inuse; /* use count */
+ atomic_t sk_inuse; /* use count */
unsigned long sk_flags;
#define SK_BUSY 0 /* enqueued/receiving */
#define SK_CONN 1 /* conn pending */
@@ -31,9 +32,12 @@
#define SK_DEAD 6 /* socket closed */
#define SK_CHNGBUF 7 /* need to change snd/rcv buffer sizes */
#define SK_DEFERRED 8 /* request on sk_deferred */
+#define SK_OLD 9 /* used for temp socket aging mark+sweep */
+#define SK_DETACHED 10 /* detached from tempsocks list */
- int sk_reserved; /* space on outq that is reserved */
+ atomic_t sk_reserved; /* space on outq that is reserved */
+ spinlock_t sk_defer_lock; /* protects sk_deferred */
struct list_head sk_deferred; /* deferred requests that need to
* be revisted */
struct mutex sk_mutex; /* to serialize sending data */
@@ -57,9 +61,14 @@
*/
int svc_makesock(struct svc_serv *, int, unsigned short);
void svc_delete_socket(struct svc_sock *);
-int svc_recv(struct svc_serv *, struct svc_rqst *, long);
+int svc_recv(struct svc_rqst *, long);
int svc_send(struct svc_rqst *);
void svc_drop(struct svc_rqst *);
void svc_sock_update_bufs(struct svc_serv *serv);
+int svc_sock_names(char *buf, struct svc_serv *serv, char *toclose);
+int svc_addsock(struct svc_serv *serv,
+ int fd,
+ char *name_return,
+ int *proto);
#endif /* SUNRPC_SVCSOCK_H */
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 2d1c3d5c..3efcfc7 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -599,4 +599,6 @@
size_t len);
asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
+int kernel_execve(const char *filename, char *const argv[], char *const envp[]);
+
#endif
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 58c961c..5c8473b 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -219,7 +219,8 @@
struct tty_driver *alloc_tty_driver(int lines);
void put_tty_driver(struct tty_driver *driver);
-void tty_set_operations(struct tty_driver *driver, struct tty_operations *op);
+void tty_set_operations(struct tty_driver *driver,
+ const struct tty_operations *op);
/* tty driver magic number */
#define TTY_DRIVER_MAGIC 0x5402
diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 7168302..1fd61ee 100644
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -22,12 +22,18 @@
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
+ * 0.3 24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
+ * - update ff support for the changes in kernel interface
+ * - add UINPUT_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
* 0.1 20/06/2002
* - first public version
*/
+
+#define UINPUT_VERSION 3
+
#ifdef __KERNEL__
#define UINPUT_MINOR 223
#define UINPUT_NAME "uinput"
@@ -45,7 +51,10 @@
union {
int effect_id;
- struct ff_effect* effect;
+ struct {
+ struct ff_effect *effect;
+ struct ff_effect *old;
+ } upload;
} u;
};
@@ -58,6 +67,7 @@
unsigned char head;
unsigned char tail;
struct input_event buff[UINPUT_BUFFER_SIZE];
+ int ff_effects_max;
struct uinput_request *requests[UINPUT_NUM_REQUESTS];
wait_queue_head_t requests_waitq;
@@ -69,6 +79,7 @@
int request_id;
int retval;
struct ff_effect effect;
+ struct ff_effect old;
};
struct uinput_ff_erase {
@@ -98,33 +109,33 @@
#define UI_BEGIN_FF_ERASE _IOWR(UINPUT_IOCTL_BASE, 202, struct uinput_ff_erase)
#define UI_END_FF_ERASE _IOW(UINPUT_IOCTL_BASE, 203, struct uinput_ff_erase)
-/* To write a force-feedback-capable driver, the upload_effect
+/*
+ * To write a force-feedback-capable driver, the upload_effect
* and erase_effect callbacks in input_dev must be implemented.
* The uinput driver will generate a fake input event when one of
* these callbacks are invoked. The userspace code then uses
* ioctls to retrieve additional parameters and send the return code.
* The callback blocks until this return code is sent.
*
- * The described callback mechanism is only used if EV_FF is set.
- * Otherwise, default implementations of upload_effect and erase_effect
- * are used.
+ * The described callback mechanism is only used if ff_effects_max
+ * is set.
*
* To implement upload_effect():
- * 1. Wait for an event with type==EV_UINPUT and code==UI_FF_UPLOAD.
+ * 1. Wait for an event with type == EV_UINPUT and code == UI_FF_UPLOAD.
* A request ID will be given in 'value'.
* 2. Allocate a uinput_ff_upload struct, fill in request_id with
* the 'value' from the EV_UINPUT event.
* 3. Issue a UI_BEGIN_FF_UPLOAD ioctl, giving it the
* uinput_ff_upload struct. It will be filled in with the
- * ff_effect passed to upload_effect().
- * 4. Perform the effect upload, and place the modified ff_effect
- * and a return code back into the uinput_ff_upload struct.
+ * ff_effects passed to upload_effect().
+ * 4. Perform the effect upload, and place a return code back into
+ the uinput_ff_upload struct.
* 5. Issue a UI_END_FF_UPLOAD ioctl, also giving it the
* uinput_ff_upload_effect struct. This will complete execution
* of our upload_effect() handler.
*
* To implement erase_effect():
- * 1. Wait for an event with type==EV_UINPUT and code==UI_FF_ERASE.
+ * 1. Wait for an event with type == EV_UINPUT and code == UI_FF_ERASE.
* A request ID will be given in 'value'.
* 2. Allocate a uinput_ff_erase struct, fill in request_id with
* the 'value' from the EV_UINPUT event.
@@ -133,13 +144,13 @@
* effect ID passed to erase_effect().
* 4. Perform the effect erasure, and place a return code back
* into the uinput_ff_erase struct.
- * and a return code back into the uinput_ff_erase struct.
* 5. Issue a UI_END_FF_ERASE ioctl, also giving it the
* uinput_ff_erase_effect struct. This will complete execution
* of our erase_effect() handler.
*/
-/* This is the new event type, used only by uinput.
+/*
+ * This is the new event type, used only by uinput.
* 'code' is UI_FF_UPLOAD or UI_FF_ERASE, and 'value'
* is the unique request ID. This number was picked
* arbitrarily, above EV_MAX (since the input system
diff --git a/include/linux/unistd.h b/include/linux/unistd.h
index c18c60f..aa8d5b5 100644
--- a/include/linux/unistd.h
+++ b/include/linux/unistd.h
@@ -1,12 +1,8 @@
#ifndef _LINUX_UNISTD_H_
#define _LINUX_UNISTD_H_
-#ifdef __KERNEL__
-extern int errno;
-#endif
-
/*
- * Include machine specific syscallX macros
+ * Include machine specific syscall numbers
*/
#include <asm/unistd.h>
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 13e1da0..02e4b69 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -1,6 +1,11 @@
#ifndef _LINUX_UTSNAME_H
#define _LINUX_UTSNAME_H
+#include <linux/sched.h>
+#include <linux/kref.h>
+#include <linux/nsproxy.h>
+#include <asm/atomic.h>
+
#define __OLD_UTS_LEN 8
struct oldold_utsname {
@@ -30,7 +35,55 @@
char domainname[65];
};
-extern struct new_utsname system_utsname;
+struct uts_namespace {
+ struct kref kref;
+ struct new_utsname name;
+};
+extern struct uts_namespace init_uts_ns;
+
+static inline void get_uts_ns(struct uts_namespace *ns)
+{
+ kref_get(&ns->kref);
+}
+
+#ifdef CONFIG_UTS_NS
+extern int unshare_utsname(unsigned long unshare_flags,
+ struct uts_namespace **new_uts);
+extern int copy_utsname(int flags, struct task_struct *tsk);
+extern void free_uts_ns(struct kref *kref);
+
+static inline void put_uts_ns(struct uts_namespace *ns)
+{
+ kref_put(&ns->kref, free_uts_ns);
+}
+#else
+static inline int unshare_utsname(unsigned long unshare_flags,
+ struct uts_namespace **new_uts)
+{
+ if (unshare_flags & CLONE_NEWUTS)
+ return -EINVAL;
+
+ return 0;
+}
+
+static inline int copy_utsname(int flags, struct task_struct *tsk)
+{
+ return 0;
+}
+static inline void put_uts_ns(struct uts_namespace *ns)
+{
+}
+#endif
+
+static inline struct new_utsname *utsname(void)
+{
+ return ¤t->nsproxy->uts_ns->name;
+}
+
+static inline struct new_utsname *init_utsname(void)
+{
+ return &init_uts_ns.name;
+}
extern struct rw_semaphore uts_sem;
#endif
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 1009d3f..37a1a41 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -84,4 +84,11 @@
extern char con_buf[CON_BUF_SIZE];
extern struct semaphore con_buf_sem;
+struct vt_spawn_console {
+ spinlock_t lock;
+ struct pid *pid;
+ int sig;
+};
+extern struct vt_spawn_console vt_spawn_con;
+
#endif /* _VT_KERN_H */
diff --git a/init/Kconfig b/init/Kconfig
index f7a04d0..1038293 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -115,6 +115,15 @@
section 6.4 of the Linux Programmer's Guide, available from
<http://www.tldp.org/guides.html>.
+config IPC_NS
+ bool "IPC Namespaces"
+ depends on SYSVIPC
+ default n
+ help
+ Support ipc namespaces. This allows containers, i.e. virtual
+ environments, to use ipc namespaces to provide different ipc
+ objects for different servers. If unsure, say N.
+
config POSIX_MQUEUE
bool "POSIX Message Queues"
depends on NET && EXPERIMENTAL
@@ -182,6 +191,14 @@
Say N if unsure.
+config UTS_NS
+ bool "UTS Namespaces"
+ default n
+ help
+ Support uts namespaces. This allows containers, i.e.
+ vservers, to use uts namespaces to provide different
+ uts info for different servers. If unsure, say N.
+
config AUDIT
bool "Auditing support"
depends on NET
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a06f037..919a80c 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -1,4 +1,3 @@
-#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <linux/kernel.h>
#include <linux/fs.h>
@@ -35,7 +34,7 @@
(void) sys_open("/dev/console",O_RDWR,0);
(void) sys_dup(0);
(void) sys_dup(0);
- return execve(shell, argv, envp_init);
+ return kernel_execve(shell, argv, envp_init);
}
static void __init handle_initrd(void)
diff --git a/init/main.c b/init/main.c
index 0766e69..ee12324 100644
--- a/init/main.c
+++ b/init/main.c
@@ -9,8 +9,6 @@
* Simplified starting of init: Michael A. Griffith <grif@acm.org>
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/types.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
@@ -703,7 +701,7 @@
static void run_init_process(char *init_filename)
{
argv_init[0] = init_filename;
- execve(init_filename, argv_init, envp_init);
+ kernel_execve(init_filename, argv_init, envp_init);
}
static int init(void * unused)
@@ -723,6 +721,8 @@
*/
child_reaper = current;
+ cad_pid = task_pid(current);
+
smp_prepare_cpus(max_cpus);
do_pre_smp_initcalls();
diff --git a/init/version.c b/init/version.c
index e290802..8f28344 100644
--- a/init/version.c
+++ b/init/version.c
@@ -12,22 +12,27 @@
#include <linux/utsname.h>
#include <linux/utsrelease.h>
#include <linux/version.h>
+#include <linux/sched.h>
#define version(a) Version_ ## a
#define version_string(a) version(a)
int version_string(LINUX_VERSION_CODE);
-struct new_utsname system_utsname = {
- .sysname = UTS_SYSNAME,
- .nodename = UTS_NODENAME,
- .release = UTS_RELEASE,
- .version = UTS_VERSION,
- .machine = UTS_MACHINE,
- .domainname = UTS_DOMAINNAME,
+struct uts_namespace init_uts_ns = {
+ .kref = {
+ .refcount = ATOMIC_INIT(2),
+ },
+ .name = {
+ .sysname = UTS_SYSNAME,
+ .nodename = UTS_NODENAME,
+ .release = UTS_RELEASE,
+ .version = UTS_VERSION,
+ .machine = UTS_MACHINE,
+ .domainname = UTS_DOMAINNAME,
+ },
};
-
-EXPORT_SYMBOL(system_utsname);
+EXPORT_SYMBOL_GPL(init_uts_ns);
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index d75d0ba..c45ae86 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -73,7 +73,7 @@
struct mq_attr attr;
struct sigevent notify;
- pid_t notify_owner;
+ struct pid* notify_owner;
struct user_struct *user; /* user who created, for accounting */
struct sock *notify_sock;
struct sk_buff *notify_cookie;
@@ -134,7 +134,7 @@
INIT_LIST_HEAD(&info->e_wait_q[0].list);
INIT_LIST_HEAD(&info->e_wait_q[1].list);
info->messages = NULL;
- info->notify_owner = 0;
+ info->notify_owner = NULL;
info->qsize = 0;
info->user = NULL; /* set when all is ok */
memset(&info->attr, 0, sizeof(info->attr));
@@ -338,7 +338,7 @@
(info->notify_owner &&
info->notify.sigev_notify == SIGEV_SIGNAL) ?
info->notify.sigev_signo : 0,
- info->notify_owner);
+ pid_nr(info->notify_owner));
spin_unlock(&info->lock);
buffer[sizeof(buffer)-1] = '\0';
slen = strlen(buffer)+1;
@@ -363,7 +363,7 @@
struct mqueue_inode_info *info = MQUEUE_I(filp->f_dentry->d_inode);
spin_lock(&info->lock);
- if (current->tgid == info->notify_owner)
+ if (task_tgid(current) == info->notify_owner)
remove_notification(info);
spin_unlock(&info->lock);
@@ -518,8 +518,8 @@
sig_i.si_pid = current->tgid;
sig_i.si_uid = current->uid;
- kill_proc_info(info->notify.sigev_signo,
- &sig_i, info->notify_owner);
+ kill_pid_info(info->notify.sigev_signo,
+ &sig_i, info->notify_owner);
break;
case SIGEV_THREAD:
set_cookie(info->notify_cookie, NOTIFY_WOKENUP);
@@ -528,7 +528,8 @@
break;
}
/* after notification unregisters process */
- info->notify_owner = 0;
+ put_pid(info->notify_owner);
+ info->notify_owner = NULL;
}
wake_up(&info->wait_q);
}
@@ -566,12 +567,13 @@
static void remove_notification(struct mqueue_inode_info *info)
{
- if (info->notify_owner != 0 &&
+ if (info->notify_owner != NULL &&
info->notify.sigev_notify == SIGEV_THREAD) {
set_cookie(info->notify_cookie, NOTIFY_REMOVED);
netlink_sendskb(info->notify_sock, info->notify_cookie, 0);
}
- info->notify_owner = 0;
+ put_pid(info->notify_owner);
+ info->notify_owner = NULL;
}
static int mq_attr_ok(struct mq_attr *attr)
@@ -1062,11 +1064,11 @@
ret = 0;
spin_lock(&info->lock);
if (u_notification == NULL) {
- if (info->notify_owner == current->tgid) {
+ if (info->notify_owner == task_tgid(current)) {
remove_notification(info);
inode->i_atime = inode->i_ctime = CURRENT_TIME;
}
- } else if (info->notify_owner != 0) {
+ } else if (info->notify_owner != NULL) {
ret = -EBUSY;
} else {
switch (notification.sigev_notify) {
@@ -1086,7 +1088,8 @@
info->notify.sigev_notify = SIGEV_SIGNAL;
break;
}
- info->notify_owner = current->tgid;
+
+ info->notify_owner = get_pid(task_tgid(current));
inode->i_atime = inode->i_ctime = CURRENT_TIME;
}
spin_unlock(&info->lock);
diff --git a/ipc/msg.c b/ipc/msg.c
index 2b4fccf..5b213d9 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -16,6 +16,10 @@
*
* support for audit of ipc object properties and permission changes
* Dustin Kirkland <dustin.kirkland@us.ibm.com>
+ *
+ * namespaces support
+ * OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
*/
#include <linux/capability.h>
@@ -31,16 +35,12 @@
#include <linux/audit.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/nsproxy.h>
#include <asm/current.h>
#include <asm/uaccess.h>
#include "util.h"
-/* sysctl: */
-int msg_ctlmax = MSGMAX;
-int msg_ctlmnb = MSGMNB;
-int msg_ctlmni = MSGMNI;
-
/*
* one msg_receiver structure for each sleeping receiver:
*/
@@ -69,30 +69,75 @@
static atomic_t msg_bytes = ATOMIC_INIT(0);
static atomic_t msg_hdrs = ATOMIC_INIT(0);
-static struct ipc_ids msg_ids;
+static struct ipc_ids init_msg_ids;
-#define msg_lock(id) ((struct msg_queue *)ipc_lock(&msg_ids, id))
+#define msg_ids(ns) (*((ns)->ids[IPC_MSG_IDS]))
+
+#define msg_lock(ns, id) ((struct msg_queue*)ipc_lock(&msg_ids(ns), id))
#define msg_unlock(msq) ipc_unlock(&(msq)->q_perm)
-#define msg_rmid(id) ((struct msg_queue *)ipc_rmid(&msg_ids, id))
-#define msg_checkid(msq, msgid) ipc_checkid(&msg_ids, &msq->q_perm, msgid)
-#define msg_buildid(id, seq) ipc_buildid(&msg_ids, id, seq)
+#define msg_rmid(ns, id) ((struct msg_queue*)ipc_rmid(&msg_ids(ns), id))
+#define msg_checkid(ns, msq, msgid) \
+ ipc_checkid(&msg_ids(ns), &msq->q_perm, msgid)
+#define msg_buildid(ns, id, seq) \
+ ipc_buildid(&msg_ids(ns), id, seq)
-static void freeque(struct msg_queue *msq, int id);
-static int newque(key_t key, int msgflg);
+static void freeque (struct ipc_namespace *ns, struct msg_queue *msq, int id);
+static int newque (struct ipc_namespace *ns, key_t key, int msgflg);
#ifdef CONFIG_PROC_FS
static int sysvipc_msg_proc_show(struct seq_file *s, void *it);
#endif
-void __init msg_init(void)
+static void __ipc_init __msg_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids)
{
- ipc_init_ids(&msg_ids, msg_ctlmni);
- ipc_init_proc_interface("sysvipc/msg",
- " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
- &msg_ids,
- sysvipc_msg_proc_show);
+ ns->ids[IPC_MSG_IDS] = ids;
+ ns->msg_ctlmax = MSGMAX;
+ ns->msg_ctlmnb = MSGMNB;
+ ns->msg_ctlmni = MSGMNI;
+ ipc_init_ids(ids, ns->msg_ctlmni);
}
-static int newque(key_t key, int msgflg)
+#ifdef CONFIG_IPC_NS
+int msg_init_ns(struct ipc_namespace *ns)
+{
+ struct ipc_ids *ids;
+
+ ids = kmalloc(sizeof(struct ipc_ids), GFP_KERNEL);
+ if (ids == NULL)
+ return -ENOMEM;
+
+ __msg_init_ns(ns, ids);
+ return 0;
+}
+
+void msg_exit_ns(struct ipc_namespace *ns)
+{
+ int i;
+ struct msg_queue *msq;
+
+ mutex_lock(&msg_ids(ns).mutex);
+ for (i = 0; i <= msg_ids(ns).max_id; i++) {
+ msq = msg_lock(ns, i);
+ if (msq == NULL)
+ continue;
+
+ freeque(ns, msq, i);
+ }
+ mutex_unlock(&msg_ids(ns).mutex);
+
+ kfree(ns->ids[IPC_MSG_IDS]);
+ ns->ids[IPC_MSG_IDS] = NULL;
+}
+#endif
+
+void __init msg_init(void)
+{
+ __msg_init_ns(&init_ipc_ns, &init_msg_ids);
+ ipc_init_proc_interface("sysvipc/msg",
+ " key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
+ IPC_MSG_IDS, sysvipc_msg_proc_show);
+}
+
+static int newque (struct ipc_namespace *ns, key_t key, int msgflg)
{
struct msg_queue *msq;
int id, retval;
@@ -111,18 +156,18 @@
return retval;
}
- id = ipc_addid(&msg_ids, &msq->q_perm, msg_ctlmni);
+ id = ipc_addid(&msg_ids(ns), &msq->q_perm, ns->msg_ctlmni);
if (id == -1) {
security_msg_queue_free(msq);
ipc_rcu_putref(msq);
return -ENOSPC;
}
- msq->q_id = msg_buildid(id, msq->q_perm.seq);
+ msq->q_id = msg_buildid(ns, id, msq->q_perm.seq);
msq->q_stime = msq->q_rtime = 0;
msq->q_ctime = get_seconds();
msq->q_cbytes = msq->q_qnum = 0;
- msq->q_qbytes = msg_ctlmnb;
+ msq->q_qbytes = ns->msg_ctlmnb;
msq->q_lspid = msq->q_lrpid = 0;
INIT_LIST_HEAD(&msq->q_messages);
INIT_LIST_HEAD(&msq->q_receivers);
@@ -186,13 +231,13 @@
* msg_ids.mutex and the spinlock for this message queue is hold
* before freeque() is called. msg_ids.mutex remains locked on exit.
*/
-static void freeque(struct msg_queue *msq, int id)
+static void freeque(struct ipc_namespace *ns, struct msg_queue *msq, int id)
{
struct list_head *tmp;
expunge_all(msq, -EIDRM);
ss_wakeup(&msq->q_senders, 1);
- msq = msg_rmid(id);
+ msq = msg_rmid(ns, id);
msg_unlock(msq);
tmp = msq->q_messages.next;
@@ -212,24 +257,27 @@
{
struct msg_queue *msq;
int id, ret = -EPERM;
+ struct ipc_namespace *ns;
+
+ ns = current->nsproxy->ipc_ns;
- mutex_lock(&msg_ids.mutex);
+ mutex_lock(&msg_ids(ns).mutex);
if (key == IPC_PRIVATE)
- ret = newque(key, msgflg);
- else if ((id = ipc_findkey(&msg_ids, key)) == -1) { /* key not used */
+ ret = newque(ns, key, msgflg);
+ else if ((id = ipc_findkey(&msg_ids(ns), key)) == -1) { /* key not used */
if (!(msgflg & IPC_CREAT))
ret = -ENOENT;
else
- ret = newque(key, msgflg);
+ ret = newque(ns, key, msgflg);
} else if (msgflg & IPC_CREAT && msgflg & IPC_EXCL) {
ret = -EEXIST;
} else {
- msq = msg_lock(id);
+ msq = msg_lock(ns, id);
BUG_ON(msq == NULL);
if (ipcperms(&msq->q_perm, msgflg))
ret = -EACCES;
else {
- int qid = msg_buildid(id, msq->q_perm.seq);
+ int qid = msg_buildid(ns, id, msq->q_perm.seq);
ret = security_msg_queue_associate(msq, msgflg);
if (!ret)
@@ -237,7 +285,7 @@
}
msg_unlock(msq);
}
- mutex_unlock(&msg_ids.mutex);
+ mutex_unlock(&msg_ids(ns).mutex);
return ret;
}
@@ -341,11 +389,13 @@
struct msq_setbuf setbuf;
struct msg_queue *msq;
int err, version;
+ struct ipc_namespace *ns;
if (msqid < 0 || cmd < 0)
return -EINVAL;
version = ipc_parse_version(&cmd);
+ ns = current->nsproxy->ipc_ns;
switch (cmd) {
case IPC_INFO:
@@ -366,14 +416,14 @@
return err;
memset(&msginfo, 0, sizeof(msginfo));
- msginfo.msgmni = msg_ctlmni;
- msginfo.msgmax = msg_ctlmax;
- msginfo.msgmnb = msg_ctlmnb;
+ msginfo.msgmni = ns->msg_ctlmni;
+ msginfo.msgmax = ns->msg_ctlmax;
+ msginfo.msgmnb = ns->msg_ctlmnb;
msginfo.msgssz = MSGSSZ;
msginfo.msgseg = MSGSEG;
- mutex_lock(&msg_ids.mutex);
+ mutex_lock(&msg_ids(ns).mutex);
if (cmd == MSG_INFO) {
- msginfo.msgpool = msg_ids.in_use;
+ msginfo.msgpool = msg_ids(ns).in_use;
msginfo.msgmap = atomic_read(&msg_hdrs);
msginfo.msgtql = atomic_read(&msg_bytes);
} else {
@@ -381,8 +431,8 @@
msginfo.msgpool = MSGPOOL;
msginfo.msgtql = MSGTQL;
}
- max_id = msg_ids.max_id;
- mutex_unlock(&msg_ids.mutex);
+ max_id = msg_ids(ns).max_id;
+ mutex_unlock(&msg_ids(ns).mutex);
if (copy_to_user(buf, &msginfo, sizeof(struct msginfo)))
return -EFAULT;
return (max_id < 0) ? 0 : max_id;
@@ -395,20 +445,20 @@
if (!buf)
return -EFAULT;
- if (cmd == MSG_STAT && msqid >= msg_ids.entries->size)
+ if (cmd == MSG_STAT && msqid >= msg_ids(ns).entries->size)
return -EINVAL;
memset(&tbuf, 0, sizeof(tbuf));
- msq = msg_lock(msqid);
+ msq = msg_lock(ns, msqid);
if (msq == NULL)
return -EINVAL;
if (cmd == MSG_STAT) {
- success_return = msg_buildid(msqid, msq->q_perm.seq);
+ success_return = msg_buildid(ns, msqid, msq->q_perm.seq);
} else {
err = -EIDRM;
- if (msg_checkid(msq, msqid))
+ if (msg_checkid(ns, msq, msqid))
goto out_unlock;
success_return = 0;
}
@@ -446,14 +496,14 @@
return -EINVAL;
}
- mutex_lock(&msg_ids.mutex);
- msq = msg_lock(msqid);
+ mutex_lock(&msg_ids(ns).mutex);
+ msq = msg_lock(ns, msqid);
err = -EINVAL;
if (msq == NULL)
goto out_up;
err = -EIDRM;
- if (msg_checkid(msq, msqid))
+ if (msg_checkid(ns, msq, msqid))
goto out_unlock_up;
ipcp = &msq->q_perm;
@@ -481,7 +531,7 @@
case IPC_SET:
{
err = -EPERM;
- if (setbuf.qbytes > msg_ctlmnb && !capable(CAP_SYS_RESOURCE))
+ if (setbuf.qbytes > ns->msg_ctlmnb && !capable(CAP_SYS_RESOURCE))
goto out_unlock_up;
msq->q_qbytes = setbuf.qbytes;
@@ -503,12 +553,12 @@
break;
}
case IPC_RMID:
- freeque(msq, msqid);
+ freeque(ns, msq, msqid);
break;
}
err = 0;
out_up:
- mutex_unlock(&msg_ids.mutex);
+ mutex_unlock(&msg_ids(ns).mutex);
return err;
out_unlock_up:
msg_unlock(msq);
@@ -582,8 +632,11 @@
struct msg_msg *msg;
long mtype;
int err;
+ struct ipc_namespace *ns;
- if (msgsz > msg_ctlmax || (long) msgsz < 0 || msqid < 0)
+ ns = current->nsproxy->ipc_ns;
+
+ if (msgsz > ns->msg_ctlmax || (long) msgsz < 0 || msqid < 0)
return -EINVAL;
if (get_user(mtype, &msgp->mtype))
return -EFAULT;
@@ -597,13 +650,13 @@
msg->m_type = mtype;
msg->m_ts = msgsz;
- msq = msg_lock(msqid);
+ msq = msg_lock(ns, msqid);
err = -EINVAL;
if (msq == NULL)
goto out_free;
err= -EIDRM;
- if (msg_checkid(msq, msqid))
+ if (msg_checkid(ns, msq, msqid))
goto out_unlock_free;
for (;;) {
@@ -694,17 +747,19 @@
struct msg_queue *msq;
struct msg_msg *msg;
int mode;
+ struct ipc_namespace *ns;
if (msqid < 0 || (long) msgsz < 0)
return -EINVAL;
mode = convert_mode(&msgtyp, msgflg);
+ ns = current->nsproxy->ipc_ns;
- msq = msg_lock(msqid);
+ msq = msg_lock(ns, msqid);
if (msq == NULL)
return -EINVAL;
msg = ERR_PTR(-EIDRM);
- if (msg_checkid(msq, msqid))
+ if (msg_checkid(ns, msq, msqid))
goto out_unlock;
for (;;) {
diff --git a/ipc/sem.c b/ipc/sem.c
index 6013c75..0dafcc4 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -64,6 +64,10 @@
*
* support for audit of ipc object properties and permission changes
* Dustin Kirkland <dustin.kirkland@us.ibm.com>
+ *
+ * namespaces support
+ * OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
*/
#include <linux/slab.h>
@@ -78,22 +82,25 @@
#include <linux/capability.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/nsproxy.h>
#include <asm/uaccess.h>
#include "util.h"
+#define sem_ids(ns) (*((ns)->ids[IPC_SEM_IDS]))
-#define sem_lock(id) ((struct sem_array*)ipc_lock(&sem_ids,id))
-#define sem_unlock(sma) ipc_unlock(&(sma)->sem_perm)
-#define sem_rmid(id) ((struct sem_array*)ipc_rmid(&sem_ids,id))
-#define sem_checkid(sma, semid) \
- ipc_checkid(&sem_ids,&sma->sem_perm,semid)
-#define sem_buildid(id, seq) \
- ipc_buildid(&sem_ids, id, seq)
-static struct ipc_ids sem_ids;
+#define sem_lock(ns, id) ((struct sem_array*)ipc_lock(&sem_ids(ns), id))
+#define sem_unlock(sma) ipc_unlock(&(sma)->sem_perm)
+#define sem_rmid(ns, id) ((struct sem_array*)ipc_rmid(&sem_ids(ns), id))
+#define sem_checkid(ns, sma, semid) \
+ ipc_checkid(&sem_ids(ns),&sma->sem_perm,semid)
+#define sem_buildid(ns, id, seq) \
+ ipc_buildid(&sem_ids(ns), id, seq)
-static int newary (key_t, int, int);
-static void freeary (struct sem_array *sma, int id);
+static struct ipc_ids init_sem_ids;
+
+static int newary(struct ipc_namespace *, key_t, int, int);
+static void freeary(struct ipc_namespace *ns, struct sem_array *sma, int id);
#ifdef CONFIG_PROC_FS
static int sysvipc_sem_proc_show(struct seq_file *s, void *it);
#endif
@@ -110,22 +117,61 @@
*
*/
-int sem_ctls[4] = {SEMMSL, SEMMNS, SEMOPM, SEMMNI};
-#define sc_semmsl (sem_ctls[0])
-#define sc_semmns (sem_ctls[1])
-#define sc_semopm (sem_ctls[2])
-#define sc_semmni (sem_ctls[3])
+#define sc_semmsl sem_ctls[0]
+#define sc_semmns sem_ctls[1]
+#define sc_semopm sem_ctls[2]
+#define sc_semmni sem_ctls[3]
-static int used_sems;
+static void __ipc_init __sem_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids)
+{
+ ns->ids[IPC_SEM_IDS] = ids;
+ ns->sc_semmsl = SEMMSL;
+ ns->sc_semmns = SEMMNS;
+ ns->sc_semopm = SEMOPM;
+ ns->sc_semmni = SEMMNI;
+ ns->used_sems = 0;
+ ipc_init_ids(ids, ns->sc_semmni);
+}
+
+#ifdef CONFIG_IPC_NS
+int sem_init_ns(struct ipc_namespace *ns)
+{
+ struct ipc_ids *ids;
+
+ ids = kmalloc(sizeof(struct ipc_ids), GFP_KERNEL);
+ if (ids == NULL)
+ return -ENOMEM;
+
+ __sem_init_ns(ns, ids);
+ return 0;
+}
+
+void sem_exit_ns(struct ipc_namespace *ns)
+{
+ int i;
+ struct sem_array *sma;
+
+ mutex_lock(&sem_ids(ns).mutex);
+ for (i = 0; i <= sem_ids(ns).max_id; i++) {
+ sma = sem_lock(ns, i);
+ if (sma == NULL)
+ continue;
+
+ freeary(ns, sma, i);
+ }
+ mutex_unlock(&sem_ids(ns).mutex);
+
+ kfree(ns->ids[IPC_SEM_IDS]);
+ ns->ids[IPC_SEM_IDS] = NULL;
+}
+#endif
void __init sem_init (void)
{
- used_sems = 0;
- ipc_init_ids(&sem_ids,sc_semmni);
+ __sem_init_ns(&init_ipc_ns, &init_sem_ids);
ipc_init_proc_interface("sysvipc/sem",
" key semid perms nsems uid gid cuid cgid otime ctime\n",
- &sem_ids,
- sysvipc_sem_proc_show);
+ IPC_SEM_IDS, sysvipc_sem_proc_show);
}
/*
@@ -162,7 +208,7 @@
*/
#define IN_WAKEUP 1
-static int newary (key_t key, int nsems, int semflg)
+static int newary (struct ipc_namespace *ns, key_t key, int nsems, int semflg)
{
int id;
int retval;
@@ -171,7 +217,7 @@
if (!nsems)
return -EINVAL;
- if (used_sems + nsems > sc_semmns)
+ if (ns->used_sems + nsems > ns->sc_semmns)
return -ENOSPC;
size = sizeof (*sma) + nsems * sizeof (struct sem);
@@ -191,15 +237,15 @@
return retval;
}
- id = ipc_addid(&sem_ids, &sma->sem_perm, sc_semmni);
+ id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
if(id == -1) {
security_sem_free(sma);
ipc_rcu_putref(sma);
return -ENOSPC;
}
- used_sems += nsems;
+ ns->used_sems += nsems;
- sma->sem_id = sem_buildid(id, sma->sem_perm.seq);
+ sma->sem_id = sem_buildid(ns, id, sma->sem_perm.seq);
sma->sem_base = (struct sem *) &sma[1];
/* sma->sem_pending = NULL; */
sma->sem_pending_last = &sma->sem_pending;
@@ -215,29 +261,32 @@
{
int id, err = -EINVAL;
struct sem_array *sma;
+ struct ipc_namespace *ns;
- if (nsems < 0 || nsems > sc_semmsl)
+ ns = current->nsproxy->ipc_ns;
+
+ if (nsems < 0 || nsems > ns->sc_semmsl)
return -EINVAL;
- mutex_lock(&sem_ids.mutex);
+ mutex_lock(&sem_ids(ns).mutex);
if (key == IPC_PRIVATE) {
- err = newary(key, nsems, semflg);
- } else if ((id = ipc_findkey(&sem_ids, key)) == -1) { /* key not used */
+ err = newary(ns, key, nsems, semflg);
+ } else if ((id = ipc_findkey(&sem_ids(ns), key)) == -1) { /* key not used */
if (!(semflg & IPC_CREAT))
err = -ENOENT;
else
- err = newary(key, nsems, semflg);
+ err = newary(ns, key, nsems, semflg);
} else if (semflg & IPC_CREAT && semflg & IPC_EXCL) {
err = -EEXIST;
} else {
- sma = sem_lock(id);
+ sma = sem_lock(ns, id);
BUG_ON(sma==NULL);
if (nsems > sma->sem_nsems)
err = -EINVAL;
else if (ipcperms(&sma->sem_perm, semflg))
err = -EACCES;
else {
- int semid = sem_buildid(id, sma->sem_perm.seq);
+ int semid = sem_buildid(ns, id, sma->sem_perm.seq);
err = security_sem_associate(sma, semflg);
if (!err)
err = semid;
@@ -245,7 +294,7 @@
sem_unlock(sma);
}
- mutex_unlock(&sem_ids.mutex);
+ mutex_unlock(&sem_ids(ns).mutex);
return err;
}
@@ -444,7 +493,7 @@
* the spinlock for this semaphore set hold. sem_ids.mutex remains locked
* on exit.
*/
-static void freeary (struct sem_array *sma, int id)
+static void freeary (struct ipc_namespace *ns, struct sem_array *sma, int id)
{
struct sem_undo *un;
struct sem_queue *q;
@@ -472,10 +521,10 @@
}
/* Remove the semaphore set from the ID array*/
- sma = sem_rmid(id);
+ sma = sem_rmid(ns, id);
sem_unlock(sma);
- used_sems -= sma->sem_nsems;
+ ns->used_sems -= sma->sem_nsems;
size = sizeof (*sma) + sma->sem_nsems * sizeof (struct sem);
security_sem_free(sma);
ipc_rcu_putref(sma);
@@ -503,7 +552,8 @@
}
}
-static int semctl_nolock(int semid, int semnum, int cmd, int version, union semun arg)
+static int semctl_nolock(struct ipc_namespace *ns, int semid, int semnum,
+ int cmd, int version, union semun arg)
{
int err = -EINVAL;
struct sem_array *sma;
@@ -520,24 +570,24 @@
return err;
memset(&seminfo,0,sizeof(seminfo));
- seminfo.semmni = sc_semmni;
- seminfo.semmns = sc_semmns;
- seminfo.semmsl = sc_semmsl;
- seminfo.semopm = sc_semopm;
+ seminfo.semmni = ns->sc_semmni;
+ seminfo.semmns = ns->sc_semmns;
+ seminfo.semmsl = ns->sc_semmsl;
+ seminfo.semopm = ns->sc_semopm;
seminfo.semvmx = SEMVMX;
seminfo.semmnu = SEMMNU;
seminfo.semmap = SEMMAP;
seminfo.semume = SEMUME;
- mutex_lock(&sem_ids.mutex);
+ mutex_lock(&sem_ids(ns).mutex);
if (cmd == SEM_INFO) {
- seminfo.semusz = sem_ids.in_use;
- seminfo.semaem = used_sems;
+ seminfo.semusz = sem_ids(ns).in_use;
+ seminfo.semaem = ns->used_sems;
} else {
seminfo.semusz = SEMUSZ;
seminfo.semaem = SEMAEM;
}
- max_id = sem_ids.max_id;
- mutex_unlock(&sem_ids.mutex);
+ max_id = sem_ids(ns).max_id;
+ mutex_unlock(&sem_ids(ns).mutex);
if (copy_to_user (arg.__buf, &seminfo, sizeof(struct seminfo)))
return -EFAULT;
return (max_id < 0) ? 0: max_id;
@@ -547,12 +597,12 @@
struct semid64_ds tbuf;
int id;
- if(semid >= sem_ids.entries->size)
+ if(semid >= sem_ids(ns).entries->size)
return -EINVAL;
memset(&tbuf,0,sizeof(tbuf));
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
if(sma == NULL)
return -EINVAL;
@@ -564,7 +614,7 @@
if (err)
goto out_unlock;
- id = sem_buildid(semid, sma->sem_perm.seq);
+ id = sem_buildid(ns, semid, sma->sem_perm.seq);
kernel_to_ipc64_perm(&sma->sem_perm, &tbuf.sem_perm);
tbuf.sem_otime = sma->sem_otime;
@@ -584,7 +634,8 @@
return err;
}
-static int semctl_main(int semid, int semnum, int cmd, int version, union semun arg)
+static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
+ int cmd, int version, union semun arg)
{
struct sem_array *sma;
struct sem* curr;
@@ -593,14 +644,14 @@
ushort* sem_io = fast_sem_io;
int nsems;
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
if(sma==NULL)
return -EINVAL;
nsems = sma->sem_nsems;
err=-EIDRM;
- if (sem_checkid(sma,semid))
+ if (sem_checkid(ns,sma,semid))
goto out_unlock;
err = -EACCES;
@@ -802,7 +853,8 @@
}
}
-static int semctl_down(int semid, int semnum, int cmd, int version, union semun arg)
+static int semctl_down(struct ipc_namespace *ns, int semid, int semnum,
+ int cmd, int version, union semun arg)
{
struct sem_array *sma;
int err;
@@ -813,11 +865,11 @@
if(copy_semid_from_user (&setbuf, arg.buf, version))
return -EFAULT;
}
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
if(sma==NULL)
return -EINVAL;
- if (sem_checkid(sma,semid)) {
+ if (sem_checkid(ns,sma,semid)) {
err=-EIDRM;
goto out_unlock;
}
@@ -844,7 +896,7 @@
switch(cmd){
case IPC_RMID:
- freeary(sma, semid);
+ freeary(ns, sma, semid);
err = 0;
break;
case IPC_SET:
@@ -872,17 +924,19 @@
{
int err = -EINVAL;
int version;
+ struct ipc_namespace *ns;
if (semid < 0)
return -EINVAL;
version = ipc_parse_version(&cmd);
+ ns = current->nsproxy->ipc_ns;
switch(cmd) {
case IPC_INFO:
case SEM_INFO:
case SEM_STAT:
- err = semctl_nolock(semid,semnum,cmd,version,arg);
+ err = semctl_nolock(ns,semid,semnum,cmd,version,arg);
return err;
case GETALL:
case GETVAL:
@@ -892,13 +946,13 @@
case IPC_STAT:
case SETVAL:
case SETALL:
- err = semctl_main(semid,semnum,cmd,version,arg);
+ err = semctl_main(ns,semid,semnum,cmd,version,arg);
return err;
case IPC_RMID:
case IPC_SET:
- mutex_lock(&sem_ids.mutex);
- err = semctl_down(semid,semnum,cmd,version,arg);
- mutex_unlock(&sem_ids.mutex);
+ mutex_lock(&sem_ids(ns).mutex);
+ err = semctl_down(ns,semid,semnum,cmd,version,arg);
+ mutex_unlock(&sem_ids(ns).mutex);
return err;
default:
return -EINVAL;
@@ -949,15 +1003,12 @@
static inline int get_undo_list(struct sem_undo_list **undo_listp)
{
struct sem_undo_list *undo_list;
- int size;
undo_list = current->sysvsem.undo_list;
if (!undo_list) {
- size = sizeof(struct sem_undo_list);
- undo_list = (struct sem_undo_list *) kmalloc(size, GFP_KERNEL);
+ undo_list = kzalloc(sizeof(*undo_list), GFP_KERNEL);
if (undo_list == NULL)
return -ENOMEM;
- memset(undo_list, 0, size);
spin_lock_init(&undo_list->lock);
atomic_set(&undo_list->refcnt, 1);
current->sysvsem.undo_list = undo_list;
@@ -986,7 +1037,7 @@
return un;
}
-static struct sem_undo *find_undo(int semid)
+static struct sem_undo *find_undo(struct ipc_namespace *ns, int semid)
{
struct sem_array *sma;
struct sem_undo_list *ulp;
@@ -1005,12 +1056,12 @@
goto out;
/* no undo structure around - allocate one. */
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
un = ERR_PTR(-EINVAL);
if(sma==NULL)
goto out;
un = ERR_PTR(-EIDRM);
- if (sem_checkid(sma,semid)) {
+ if (sem_checkid(ns,sma,semid)) {
sem_unlock(sma);
goto out;
}
@@ -1070,10 +1121,13 @@
int undos = 0, alter = 0, max;
struct sem_queue queue;
unsigned long jiffies_left = 0;
+ struct ipc_namespace *ns;
+
+ ns = current->nsproxy->ipc_ns;
if (nsops < 1 || semid < 0)
return -EINVAL;
- if (nsops > sc_semopm)
+ if (nsops > ns->sc_semopm)
return -E2BIG;
if(nsops > SEMOPM_FAST) {
sops = kmalloc(sizeof(*sops)*nsops,GFP_KERNEL);
@@ -1109,7 +1163,7 @@
retry_undos:
if (undos) {
- un = find_undo(semid);
+ un = find_undo(ns, semid);
if (IS_ERR(un)) {
error = PTR_ERR(un);
goto out_free;
@@ -1117,12 +1171,12 @@
} else
un = NULL;
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
error=-EINVAL;
if(sma==NULL)
goto out_free;
error = -EIDRM;
- if (sem_checkid(sma,semid))
+ if (sem_checkid(ns,sma,semid))
goto out_unlock_free;
/*
* semid identifies are not unique - find_undo may have
@@ -1190,7 +1244,7 @@
goto out_free;
}
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
if(sma==NULL) {
BUG_ON(queue.prev != NULL);
error = -EIDRM;
@@ -1267,6 +1321,7 @@
{
struct sem_undo_list *undo_list;
struct sem_undo *u, **up;
+ struct ipc_namespace *ns;
undo_list = tsk->sysvsem.undo_list;
if (!undo_list)
@@ -1275,6 +1330,7 @@
if (!atomic_dec_and_test(&undo_list->refcnt))
return;
+ ns = tsk->nsproxy->ipc_ns;
/* There's no need to hold the semundo list lock, as current
* is the last task exiting for this undo list.
*/
@@ -1288,14 +1344,14 @@
if(semid == -1)
continue;
- sma = sem_lock(semid);
+ sma = sem_lock(ns, semid);
if (sma == NULL)
continue;
if (u->semid == -1)
goto next_entry;
- BUG_ON(sem_checkid(sma,u->semid));
+ BUG_ON(sem_checkid(ns,sma,u->semid));
/* remove u from the sma->undo list */
for (unp = &sma->undo; (un = *unp); unp = &un->id_next) {
diff --git a/ipc/shm.c b/ipc/shm.c
index 940b0c9..bfbd317 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -15,6 +15,10 @@
*
* support for audit of ipc object properties and permission changes
* Dustin Kirkland <dustin.kirkland@us.ibm.com>
+ *
+ * namespaces support
+ * OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
*/
#include <linux/slab.h>
@@ -32,6 +36,7 @@
#include <linux/ptrace.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/nsproxy.h>
#include <asm/uaccess.h>
@@ -40,59 +45,115 @@
static struct file_operations shm_file_operations;
static struct vm_operations_struct shm_vm_ops;
-static struct ipc_ids shm_ids;
+static struct ipc_ids init_shm_ids;
-#define shm_lock(id) ((struct shmid_kernel*)ipc_lock(&shm_ids,id))
-#define shm_unlock(shp) ipc_unlock(&(shp)->shm_perm)
-#define shm_get(id) ((struct shmid_kernel*)ipc_get(&shm_ids,id))
-#define shm_buildid(id, seq) \
- ipc_buildid(&shm_ids, id, seq)
+#define shm_ids(ns) (*((ns)->ids[IPC_SHM_IDS]))
-static int newseg (key_t key, int shmflg, size_t size);
+#define shm_lock(ns, id) \
+ ((struct shmid_kernel*)ipc_lock(&shm_ids(ns),id))
+#define shm_unlock(shp) \
+ ipc_unlock(&(shp)->shm_perm)
+#define shm_get(ns, id) \
+ ((struct shmid_kernel*)ipc_get(&shm_ids(ns),id))
+#define shm_buildid(ns, id, seq) \
+ ipc_buildid(&shm_ids(ns), id, seq)
+
+static int newseg (struct ipc_namespace *ns, key_t key,
+ int shmflg, size_t size);
static void shm_open (struct vm_area_struct *shmd);
static void shm_close (struct vm_area_struct *shmd);
+static void shm_destroy (struct ipc_namespace *ns, struct shmid_kernel *shp);
#ifdef CONFIG_PROC_FS
static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
#endif
-size_t shm_ctlmax = SHMMAX;
-size_t shm_ctlall = SHMALL;
-int shm_ctlmni = SHMMNI;
+static void __ipc_init __shm_init_ns(struct ipc_namespace *ns, struct ipc_ids *ids)
+{
+ ns->ids[IPC_SHM_IDS] = ids;
+ ns->shm_ctlmax = SHMMAX;
+ ns->shm_ctlall = SHMALL;
+ ns->shm_ctlmni = SHMMNI;
+ ns->shm_tot = 0;
+ ipc_init_ids(ids, 1);
+}
-static int shm_tot; /* total number of shared memory pages */
+static void do_shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *shp)
+{
+ if (shp->shm_nattch){
+ shp->shm_perm.mode |= SHM_DEST;
+ /* Do not find it any more */
+ shp->shm_perm.key = IPC_PRIVATE;
+ shm_unlock(shp);
+ } else
+ shm_destroy(ns, shp);
+}
+
+#ifdef CONFIG_IPC_NS
+int shm_init_ns(struct ipc_namespace *ns)
+{
+ struct ipc_ids *ids;
+
+ ids = kmalloc(sizeof(struct ipc_ids), GFP_KERNEL);
+ if (ids == NULL)
+ return -ENOMEM;
+
+ __shm_init_ns(ns, ids);
+ return 0;
+}
+
+void shm_exit_ns(struct ipc_namespace *ns)
+{
+ int i;
+ struct shmid_kernel *shp;
+
+ mutex_lock(&shm_ids(ns).mutex);
+ for (i = 0; i <= shm_ids(ns).max_id; i++) {
+ shp = shm_lock(ns, i);
+ if (shp == NULL)
+ continue;
+
+ do_shm_rmid(ns, shp);
+ }
+ mutex_unlock(&shm_ids(ns).mutex);
+
+ kfree(ns->ids[IPC_SHM_IDS]);
+ ns->ids[IPC_SHM_IDS] = NULL;
+}
+#endif
void __init shm_init (void)
{
- ipc_init_ids(&shm_ids, 1);
+ __shm_init_ns(&init_ipc_ns, &init_shm_ids);
ipc_init_proc_interface("sysvipc/shm",
" key shmid perms size cpid lpid nattch uid gid cuid cgid atime dtime ctime\n",
- &shm_ids,
- sysvipc_shm_proc_show);
+ IPC_SHM_IDS, sysvipc_shm_proc_show);
}
-static inline int shm_checkid(struct shmid_kernel *s, int id)
+static inline int shm_checkid(struct ipc_namespace *ns,
+ struct shmid_kernel *s, int id)
{
- if (ipc_checkid(&shm_ids,&s->shm_perm,id))
+ if (ipc_checkid(&shm_ids(ns), &s->shm_perm, id))
return -EIDRM;
return 0;
}
-static inline struct shmid_kernel *shm_rmid(int id)
+static inline struct shmid_kernel *shm_rmid(struct ipc_namespace *ns, int id)
{
- return (struct shmid_kernel *)ipc_rmid(&shm_ids,id);
+ return (struct shmid_kernel *)ipc_rmid(&shm_ids(ns), id);
}
-static inline int shm_addid(struct shmid_kernel *shp)
+static inline int shm_addid(struct ipc_namespace *ns, struct shmid_kernel *shp)
{
- return ipc_addid(&shm_ids, &shp->shm_perm, shm_ctlmni);
+ return ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni);
}
-static inline void shm_inc (int id) {
+static inline void shm_inc(struct ipc_namespace *ns, int id)
+{
struct shmid_kernel *shp;
- shp = shm_lock(id);
+ shp = shm_lock(ns, id);
BUG_ON(!shp);
shp->shm_atim = get_seconds();
shp->shm_lprid = current->tgid;
@@ -100,10 +161,13 @@
shm_unlock(shp);
}
+#define shm_file_ns(file) (*((struct ipc_namespace **)&(file)->private_data))
+
/* This is called by fork, once for every shm attach. */
-static void shm_open (struct vm_area_struct *shmd)
+static void shm_open(struct vm_area_struct *shmd)
{
- shm_inc (shmd->vm_file->f_dentry->d_inode->i_ino);
+ shm_inc(shm_file_ns(shmd->vm_file),
+ shmd->vm_file->f_dentry->d_inode->i_ino);
}
/*
@@ -114,10 +178,10 @@
* It has to be called with shp and shm_ids.mutex locked,
* but returns with shp unlocked and freed.
*/
-static void shm_destroy (struct shmid_kernel *shp)
+static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
{
- shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
- shm_rmid (shp->id);
+ ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ shm_rmid(ns, shp->id);
shm_unlock(shp);
if (!is_file_hugepages(shp->shm_file))
shmem_lock(shp->shm_file, 0, shp->mlock_user);
@@ -140,20 +204,23 @@
struct file * file = shmd->vm_file;
int id = file->f_dentry->d_inode->i_ino;
struct shmid_kernel *shp;
+ struct ipc_namespace *ns;
- mutex_lock(&shm_ids.mutex);
+ ns = shm_file_ns(file);
+
+ mutex_lock(&shm_ids(ns).mutex);
/* remove from the list of attaches of the shm segment */
- shp = shm_lock(id);
+ shp = shm_lock(ns, id);
BUG_ON(!shp);
shp->shm_lprid = current->tgid;
shp->shm_dtim = get_seconds();
shp->shm_nattch--;
if(shp->shm_nattch == 0 &&
shp->shm_perm.mode & SHM_DEST)
- shm_destroy (shp);
+ shm_destroy(ns, shp);
else
shm_unlock(shp);
- mutex_unlock(&shm_ids.mutex);
+ mutex_unlock(&shm_ids(ns).mutex);
}
static int shm_mmap(struct file * file, struct vm_area_struct * vma)
@@ -165,14 +232,25 @@
vma->vm_ops = &shm_vm_ops;
if (!(vma->vm_flags & VM_WRITE))
vma->vm_flags &= ~VM_MAYWRITE;
- shm_inc(file->f_dentry->d_inode->i_ino);
+ shm_inc(shm_file_ns(file), file->f_dentry->d_inode->i_ino);
}
return ret;
}
+static int shm_release(struct inode *ino, struct file *file)
+{
+ struct ipc_namespace *ns;
+
+ ns = shm_file_ns(file);
+ put_ipc_ns(ns);
+ shm_file_ns(file) = NULL;
+ return 0;
+}
+
static struct file_operations shm_file_operations = {
- .mmap = shm_mmap,
+ .mmap = shm_mmap,
+ .release = shm_release,
#ifndef CONFIG_MMU
.get_unmapped_area = shmem_get_unmapped_area,
#endif
@@ -188,7 +266,7 @@
#endif
};
-static int newseg (key_t key, int shmflg, size_t size)
+static int newseg (struct ipc_namespace *ns, key_t key, int shmflg, size_t size)
{
int error;
struct shmid_kernel *shp;
@@ -197,10 +275,10 @@
char name[13];
int id;
- if (size < SHMMIN || size > shm_ctlmax)
+ if (size < SHMMIN || size > ns->shm_ctlmax)
return -EINVAL;
- if (shm_tot + numpages >= shm_ctlall)
+ if (ns->shm_tot + numpages >= ns->shm_ctlall)
return -ENOSPC;
shp = ipc_rcu_alloc(sizeof(*shp));
@@ -239,7 +317,7 @@
goto no_file;
error = -ENOSPC;
- id = shm_addid(shp);
+ id = shm_addid(ns, shp);
if(id == -1)
goto no_id;
@@ -249,15 +327,17 @@
shp->shm_ctim = get_seconds();
shp->shm_segsz = size;
shp->shm_nattch = 0;
- shp->id = shm_buildid(id,shp->shm_perm.seq);
+ shp->id = shm_buildid(ns, id, shp->shm_perm.seq);
shp->shm_file = file;
file->f_dentry->d_inode->i_ino = shp->id;
+ shm_file_ns(file) = get_ipc_ns(ns);
+
/* Hugetlb ops would have already been assigned. */
if (!(shmflg & SHM_HUGETLB))
file->f_op = &shm_file_operations;
- shm_tot += numpages;
+ ns->shm_tot += numpages;
shm_unlock(shp);
return shp->id;
@@ -273,33 +353,36 @@
{
struct shmid_kernel *shp;
int err, id = 0;
+ struct ipc_namespace *ns;
- mutex_lock(&shm_ids.mutex);
+ ns = current->nsproxy->ipc_ns;
+
+ mutex_lock(&shm_ids(ns).mutex);
if (key == IPC_PRIVATE) {
- err = newseg(key, shmflg, size);
- } else if ((id = ipc_findkey(&shm_ids, key)) == -1) {
+ err = newseg(ns, key, shmflg, size);
+ } else if ((id = ipc_findkey(&shm_ids(ns), key)) == -1) {
if (!(shmflg & IPC_CREAT))
err = -ENOENT;
else
- err = newseg(key, shmflg, size);
+ err = newseg(ns, key, shmflg, size);
} else if ((shmflg & IPC_CREAT) && (shmflg & IPC_EXCL)) {
err = -EEXIST;
} else {
- shp = shm_lock(id);
+ shp = shm_lock(ns, id);
BUG_ON(shp==NULL);
if (shp->shm_segsz < size)
err = -EINVAL;
else if (ipcperms(&shp->shm_perm, shmflg))
err = -EACCES;
else {
- int shmid = shm_buildid(id, shp->shm_perm.seq);
+ int shmid = shm_buildid(ns, id, shp->shm_perm.seq);
err = security_shm_associate(shp, shmflg);
if (!err)
err = shmid;
}
shm_unlock(shp);
}
- mutex_unlock(&shm_ids.mutex);
+ mutex_unlock(&shm_ids(ns).mutex);
return err;
}
@@ -395,18 +478,19 @@
}
}
-static void shm_get_stat(unsigned long *rss, unsigned long *swp)
+static void shm_get_stat(struct ipc_namespace *ns, unsigned long *rss,
+ unsigned long *swp)
{
int i;
*rss = 0;
*swp = 0;
- for (i = 0; i <= shm_ids.max_id; i++) {
+ for (i = 0; i <= shm_ids(ns).max_id; i++) {
struct shmid_kernel *shp;
struct inode *inode;
- shp = shm_get(i);
+ shp = shm_get(ns, i);
if(!shp)
continue;
@@ -430,6 +514,7 @@
struct shm_setbuf setbuf;
struct shmid_kernel *shp;
int err, version;
+ struct ipc_namespace *ns;
if (cmd < 0 || shmid < 0) {
err = -EINVAL;
@@ -437,6 +522,7 @@
}
version = ipc_parse_version(&cmd);
+ ns = current->nsproxy->ipc_ns;
switch (cmd) { /* replace with proc interface ? */
case IPC_INFO:
@@ -448,15 +534,15 @@
return err;
memset(&shminfo,0,sizeof(shminfo));
- shminfo.shmmni = shminfo.shmseg = shm_ctlmni;
- shminfo.shmmax = shm_ctlmax;
- shminfo.shmall = shm_ctlall;
+ shminfo.shmmni = shminfo.shmseg = ns->shm_ctlmni;
+ shminfo.shmmax = ns->shm_ctlmax;
+ shminfo.shmall = ns->shm_ctlall;
shminfo.shmmin = SHMMIN;
if(copy_shminfo_to_user (buf, &shminfo, version))
return -EFAULT;
/* reading a integer is always atomic */
- err= shm_ids.max_id;
+ err= shm_ids(ns).max_id;
if(err<0)
err = 0;
goto out;
@@ -470,14 +556,14 @@
return err;
memset(&shm_info,0,sizeof(shm_info));
- mutex_lock(&shm_ids.mutex);
- shm_info.used_ids = shm_ids.in_use;
- shm_get_stat (&shm_info.shm_rss, &shm_info.shm_swp);
- shm_info.shm_tot = shm_tot;
+ mutex_lock(&shm_ids(ns).mutex);
+ shm_info.used_ids = shm_ids(ns).in_use;
+ shm_get_stat (ns, &shm_info.shm_rss, &shm_info.shm_swp);
+ shm_info.shm_tot = ns->shm_tot;
shm_info.swap_attempts = 0;
shm_info.swap_successes = 0;
- err = shm_ids.max_id;
- mutex_unlock(&shm_ids.mutex);
+ err = shm_ids(ns).max_id;
+ mutex_unlock(&shm_ids(ns).mutex);
if(copy_to_user (buf, &shm_info, sizeof(shm_info))) {
err = -EFAULT;
goto out;
@@ -492,17 +578,17 @@
struct shmid64_ds tbuf;
int result;
memset(&tbuf, 0, sizeof(tbuf));
- shp = shm_lock(shmid);
+ shp = shm_lock(ns, shmid);
if(shp==NULL) {
err = -EINVAL;
goto out;
} else if(cmd==SHM_STAT) {
err = -EINVAL;
- if (shmid > shm_ids.max_id)
+ if (shmid > shm_ids(ns).max_id)
goto out_unlock;
- result = shm_buildid(shmid, shp->shm_perm.seq);
+ result = shm_buildid(ns, shmid, shp->shm_perm.seq);
} else {
- err = shm_checkid(shp,shmid);
+ err = shm_checkid(ns, shp,shmid);
if(err)
goto out_unlock;
result = 0;
@@ -534,12 +620,12 @@
case SHM_LOCK:
case SHM_UNLOCK:
{
- shp = shm_lock(shmid);
+ shp = shm_lock(ns, shmid);
if(shp==NULL) {
err = -EINVAL;
goto out;
}
- err = shm_checkid(shp,shmid);
+ err = shm_checkid(ns, shp,shmid);
if(err)
goto out_unlock;
@@ -590,12 +676,12 @@
* Instead we set a destroyed flag, and then blow
* the name away when the usage hits zero.
*/
- mutex_lock(&shm_ids.mutex);
- shp = shm_lock(shmid);
+ mutex_lock(&shm_ids(ns).mutex);
+ shp = shm_lock(ns, shmid);
err = -EINVAL;
if (shp == NULL)
goto out_up;
- err = shm_checkid(shp, shmid);
+ err = shm_checkid(ns, shp, shmid);
if(err)
goto out_unlock_up;
@@ -614,14 +700,8 @@
if (err)
goto out_unlock_up;
- if (shp->shm_nattch){
- shp->shm_perm.mode |= SHM_DEST;
- /* Do not find it any more */
- shp->shm_perm.key = IPC_PRIVATE;
- shm_unlock(shp);
- } else
- shm_destroy (shp);
- mutex_unlock(&shm_ids.mutex);
+ do_shm_rmid(ns, shp);
+ mutex_unlock(&shm_ids(ns).mutex);
goto out;
}
@@ -631,12 +711,12 @@
err = -EFAULT;
goto out;
}
- mutex_lock(&shm_ids.mutex);
- shp = shm_lock(shmid);
+ mutex_lock(&shm_ids(ns).mutex);
+ shp = shm_lock(ns, shmid);
err=-EINVAL;
if(shp==NULL)
goto out_up;
- err = shm_checkid(shp,shmid);
+ err = shm_checkid(ns, shp,shmid);
if(err)
goto out_unlock_up;
err = audit_ipc_obj(&(shp->shm_perm));
@@ -673,7 +753,7 @@
out_unlock_up:
shm_unlock(shp);
out_up:
- mutex_unlock(&shm_ids.mutex);
+ mutex_unlock(&shm_ids(ns).mutex);
goto out;
out_unlock:
shm_unlock(shp);
@@ -699,6 +779,7 @@
unsigned long prot;
int acc_mode;
void *user_addr;
+ struct ipc_namespace *ns;
if (shmid < 0) {
err = -EINVAL;
@@ -737,12 +818,13 @@
* We cannot rely on the fs check since SYSV IPC does have an
* additional creator id...
*/
- shp = shm_lock(shmid);
+ ns = current->nsproxy->ipc_ns;
+ shp = shm_lock(ns, shmid);
if(shp == NULL) {
err = -EINVAL;
goto out;
}
- err = shm_checkid(shp,shmid);
+ err = shm_checkid(ns, shp,shmid);
if (err) {
shm_unlock(shp);
goto out;
@@ -783,16 +865,16 @@
invalid:
up_write(¤t->mm->mmap_sem);
- mutex_lock(&shm_ids.mutex);
- shp = shm_lock(shmid);
+ mutex_lock(&shm_ids(ns).mutex);
+ shp = shm_lock(ns, shmid);
BUG_ON(!shp);
shp->shm_nattch--;
if(shp->shm_nattch == 0 &&
shp->shm_perm.mode & SHM_DEST)
- shm_destroy (shp);
+ shm_destroy(ns, shp);
else
shm_unlock(shp);
- mutex_unlock(&shm_ids.mutex);
+ mutex_unlock(&shm_ids(ns).mutex);
*raddr = (unsigned long) user_addr;
err = 0;
diff --git a/ipc/util.c b/ipc/util.c
index 67b6d17..42479e4 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -12,6 +12,9 @@
* Mingming Cao <cmm@us.ibm.com>
* Mar 2006 - support for audit of ipc object properties
* Dustin Kirkland <dustin.kirkland@us.ibm.com>
+ * Jun 2006 - namespaces ssupport
+ * OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
*/
#include <linux/mm.h>
@@ -29,6 +32,7 @@
#include <linux/seq_file.h>
#include <linux/proc_fs.h>
#include <linux/audit.h>
+#include <linux/nsproxy.h>
#include <asm/unistd.h>
@@ -37,10 +41,111 @@
struct ipc_proc_iface {
const char *path;
const char *header;
- struct ipc_ids *ids;
+ int ids;
int (*show)(struct seq_file *, void *);
};
+struct ipc_namespace init_ipc_ns = {
+ .kref = {
+ .refcount = ATOMIC_INIT(2),
+ },
+};
+
+#ifdef CONFIG_IPC_NS
+static struct ipc_namespace *clone_ipc_ns(struct ipc_namespace *old_ns)
+{
+ int err;
+ struct ipc_namespace *ns;
+
+ err = -ENOMEM;
+ ns = kmalloc(sizeof(struct ipc_namespace), GFP_KERNEL);
+ if (ns == NULL)
+ goto err_mem;
+
+ err = sem_init_ns(ns);
+ if (err)
+ goto err_sem;
+ err = msg_init_ns(ns);
+ if (err)
+ goto err_msg;
+ err = shm_init_ns(ns);
+ if (err)
+ goto err_shm;
+
+ kref_init(&ns->kref);
+ return ns;
+
+err_shm:
+ msg_exit_ns(ns);
+err_msg:
+ sem_exit_ns(ns);
+err_sem:
+ kfree(ns);
+err_mem:
+ return ERR_PTR(err);
+}
+
+int unshare_ipcs(unsigned long unshare_flags, struct ipc_namespace **new_ipc)
+{
+ struct ipc_namespace *new;
+
+ if (unshare_flags & CLONE_NEWIPC) {
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ new = clone_ipc_ns(current->nsproxy->ipc_ns);
+ if (IS_ERR(new))
+ return PTR_ERR(new);
+
+ *new_ipc = new;
+ }
+
+ return 0;
+}
+
+int copy_ipcs(unsigned long flags, struct task_struct *tsk)
+{
+ struct ipc_namespace *old_ns = tsk->nsproxy->ipc_ns;
+ struct ipc_namespace *new_ns;
+ int err = 0;
+
+ if (!old_ns)
+ return 0;
+
+ get_ipc_ns(old_ns);
+
+ if (!(flags & CLONE_NEWIPC))
+ return 0;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ err = -EPERM;
+ goto out;
+ }
+
+ new_ns = clone_ipc_ns(old_ns);
+ if (!new_ns) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ tsk->nsproxy->ipc_ns = new_ns;
+out:
+ put_ipc_ns(old_ns);
+ return err;
+}
+
+void free_ipc_ns(struct kref *kref)
+{
+ struct ipc_namespace *ns;
+
+ ns = container_of(kref, struct ipc_namespace, kref);
+ sem_exit_ns(ns);
+ msg_exit_ns(ns);
+ shm_exit_ns(ns);
+ kfree(ns);
+}
+#endif
+
/**
* ipc_init - initialise IPC subsystem
*
@@ -67,7 +172,7 @@
* array itself.
*/
-void __init ipc_init_ids(struct ipc_ids* ids, int size)
+void __ipc_init ipc_init_ids(struct ipc_ids* ids, int size)
{
int i;
@@ -110,8 +215,7 @@
* @show: show routine.
*/
void __init ipc_init_proc_interface(const char *path, const char *header,
- struct ipc_ids *ids,
- int (*show)(struct seq_file *, void *))
+ int ids, int (*show)(struct seq_file *, void *))
{
struct proc_dir_entry *pde;
struct ipc_proc_iface *iface;
@@ -635,6 +739,9 @@
struct ipc_proc_iface *iface = s->private;
struct kern_ipc_perm *ipc = it;
loff_t p;
+ struct ipc_ids *ids;
+
+ ids = current->nsproxy->ipc_ns->ids[iface->ids];
/* If we had an ipc id locked before, unlock it */
if (ipc && ipc != SEQ_START_TOKEN)
@@ -644,8 +751,8 @@
* p = *pos - 1 (because id 0 starts at position 1)
* + 1 (because we increment the position by one)
*/
- for (p = *pos; p <= iface->ids->max_id; p++) {
- if ((ipc = ipc_lock(iface->ids, p)) != NULL) {
+ for (p = *pos; p <= ids->max_id; p++) {
+ if ((ipc = ipc_lock(ids, p)) != NULL) {
*pos = p + 1;
return ipc;
}
@@ -664,12 +771,15 @@
struct ipc_proc_iface *iface = s->private;
struct kern_ipc_perm *ipc;
loff_t p;
+ struct ipc_ids *ids;
+
+ ids = current->nsproxy->ipc_ns->ids[iface->ids];
/*
* Take the lock - this will be released by the corresponding
* call to stop().
*/
- mutex_lock(&iface->ids->mutex);
+ mutex_lock(&ids->mutex);
/* pos < 0 is invalid */
if (*pos < 0)
@@ -680,8 +790,8 @@
return SEQ_START_TOKEN;
/* Find the (pos-1)th ipc */
- for (p = *pos - 1; p <= iface->ids->max_id; p++) {
- if ((ipc = ipc_lock(iface->ids, p)) != NULL) {
+ for (p = *pos - 1; p <= ids->max_id; p++) {
+ if ((ipc = ipc_lock(ids, p)) != NULL) {
*pos = p + 1;
return ipc;
}
@@ -693,13 +803,15 @@
{
struct kern_ipc_perm *ipc = it;
struct ipc_proc_iface *iface = s->private;
+ struct ipc_ids *ids;
/* If we had a locked segment, release it */
if (ipc && ipc != SEQ_START_TOKEN)
ipc_unlock(ipc);
+ ids = current->nsproxy->ipc_ns->ids[iface->ids];
/* Release the lock we took in start() */
- mutex_unlock(&iface->ids->mutex);
+ mutex_unlock(&ids->mutex);
}
static int sysvipc_proc_show(struct seq_file *s, void *it)
diff --git a/ipc/util.h b/ipc/util.h
index 0181553..c8fd6b9 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -3,6 +3,8 @@
* Copyright (C) 1999 Christoph Rohland
*
* ipc helper functions (c) 1999 Manfred Spraul <manfred@colorfullife.com>
+ * namespaces support. 2006 OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
*/
#ifndef _IPC_UTIL_H
@@ -15,6 +17,14 @@
void msg_init (void);
void shm_init (void);
+int sem_init_ns(struct ipc_namespace *ns);
+int msg_init_ns(struct ipc_namespace *ns);
+int shm_init_ns(struct ipc_namespace *ns);
+
+void sem_exit_ns(struct ipc_namespace *ns);
+void msg_exit_ns(struct ipc_namespace *ns);
+void shm_exit_ns(struct ipc_namespace *ns);
+
struct ipc_id_ary {
int size;
struct kern_ipc_perm *p[0];
@@ -31,15 +41,23 @@
};
struct seq_file;
-void __init ipc_init_ids(struct ipc_ids* ids, int size);
+#ifdef CONFIG_IPC_NS
+#define __ipc_init
+#else
+#define __ipc_init __init
+#endif
+void __ipc_init ipc_init_ids(struct ipc_ids *ids, int size);
#ifdef CONFIG_PROC_FS
void __init ipc_init_proc_interface(const char *path, const char *header,
- struct ipc_ids *ids,
- int (*show)(struct seq_file *, void *));
+ int ids, int (*show)(struct seq_file *, void *));
#else
#define ipc_init_proc_interface(path, header, ids, show) do {} while (0)
#endif
+#define IPC_SEM_IDS 0
+#define IPC_MSG_IDS 1
+#define IPC_SHM_IDS 2
+
/* must be called with ids->mutex acquired.*/
int ipc_findkey(struct ipc_ids* ids, key_t key);
int ipc_addid(struct ipc_ids* ids, struct kern_ipc_perm* new, int size);
diff --git a/kernel/Makefile b/kernel/Makefile
index aacaafb..d948ca1 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -8,7 +8,7 @@
signal.o sys.o kmod.o workqueue.o pid.o \
rcupdate.o extable.o params.o posix-timers.o \
kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
- hrtimer.o rwsem.o latency.o
+ hrtimer.o rwsem.o latency.o nsproxy.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-y += time/
@@ -48,6 +48,7 @@
obj-$(CONFIG_SECCOMP) += seccomp.o
obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
obj-$(CONFIG_RELAY) += relay.o
+obj-$(CONFIG_UTS_NS) += utsname.o
obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
diff --git a/kernel/compat.c b/kernel/compat.c
index b4fbd83..75573e5 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -26,8 +26,6 @@
#include <asm/uaccess.h>
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
{
return (!access_ok(VERIFY_READ, cts, sizeof(*cts)) ||
diff --git a/kernel/exit.c b/kernel/exit.c
index 3b47f26..f250a5e 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -21,6 +21,7 @@
#include <linux/tsacct_kern.h>
#include <linux/file.h>
#include <linux/binfmts.h>
+#include <linux/nsproxy.h>
#include <linux/ptrace.h>
#include <linux/profile.h>
#include <linux/mount.h>
@@ -397,9 +398,11 @@
fs = init_task.fs;
current->fs = fs;
atomic_inc(&fs->count);
- exit_namespace(current);
- current->namespace = init_task.namespace;
- get_namespace(current->namespace);
+
+ exit_task_namespaces(current);
+ current->nsproxy = init_task.nsproxy;
+ get_task_namespaces(current);
+
exit_files(current);
current->files = init_task.files;
atomic_inc(¤t->files->count);
@@ -917,7 +920,6 @@
exit_sem(tsk);
__exit_files(tsk);
__exit_fs(tsk);
- exit_namespace(tsk);
exit_thread();
cpuset_exit(tsk);
exit_keys(tsk);
@@ -932,6 +934,7 @@
tsk->exit_code = code;
proc_exit_connector(tsk);
exit_notify(tsk);
+ exit_task_namespaces(tsk);
#ifdef CONFIG_NUMA
mpol_free(tsk->mempolicy);
tsk->mempolicy = NULL;
diff --git a/kernel/fork.c b/kernel/fork.c
index 89f6664..7dc6140 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -27,6 +27,7 @@
#include <linux/binfmts.h>
#include <linux/mman.h>
#include <linux/fs.h>
+#include <linux/nsproxy.h>
#include <linux/capability.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
@@ -1116,11 +1117,11 @@
goto bad_fork_cleanup_signal;
if ((retval = copy_keys(clone_flags, p)))
goto bad_fork_cleanup_mm;
- if ((retval = copy_namespace(clone_flags, p)))
+ if ((retval = copy_namespaces(clone_flags, p)))
goto bad_fork_cleanup_keys;
retval = copy_thread(0, clone_flags, stack_start, stack_size, p, regs);
if (retval)
- goto bad_fork_cleanup_namespace;
+ goto bad_fork_cleanup_namespaces;
p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL;
/*
@@ -1212,7 +1213,7 @@
spin_unlock(¤t->sighand->siglock);
write_unlock_irq(&tasklist_lock);
retval = -ERESTARTNOINTR;
- goto bad_fork_cleanup_namespace;
+ goto bad_fork_cleanup_namespaces;
}
if (clone_flags & CLONE_THREAD) {
@@ -1260,8 +1261,8 @@
proc_fork_connector(p);
return p;
-bad_fork_cleanup_namespace:
- exit_namespace(p);
+bad_fork_cleanup_namespaces:
+ exit_task_namespaces(p);
bad_fork_cleanup_keys:
exit_keys(p);
bad_fork_cleanup_mm:
@@ -1514,10 +1515,9 @@
*/
static int unshare_namespace(unsigned long unshare_flags, struct namespace **new_nsp, struct fs_struct *new_fs)
{
- struct namespace *ns = current->namespace;
+ struct namespace *ns = current->nsproxy->namespace;
- if ((unshare_flags & CLONE_NEWNS) &&
- (ns && atomic_read(&ns->count) > 1)) {
+ if ((unshare_flags & CLONE_NEWNS) && ns) {
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -1589,6 +1589,16 @@
return 0;
}
+#ifndef CONFIG_IPC_NS
+static inline int unshare_ipcs(unsigned long flags, struct ipc_namespace **ns)
+{
+ if (flags & CLONE_NEWIPC)
+ return -EINVAL;
+
+ return 0;
+}
+#endif
+
/*
* unshare allows a process to 'unshare' part of the process
* context which was originally shared using clone. copy_*
@@ -1606,13 +1616,17 @@
struct mm_struct *mm, *new_mm = NULL, *active_mm = NULL;
struct files_struct *fd, *new_fd = NULL;
struct sem_undo_list *new_ulist = NULL;
+ struct nsproxy *new_nsproxy = NULL, *old_nsproxy = NULL;
+ struct uts_namespace *uts, *new_uts = NULL;
+ struct ipc_namespace *ipc, *new_ipc = NULL;
check_unshare_flags(&unshare_flags);
/* Return -EINVAL for all unsupported flags */
err = -EINVAL;
if (unshare_flags & ~(CLONE_THREAD|CLONE_FS|CLONE_NEWNS|CLONE_SIGHAND|
- CLONE_VM|CLONE_FILES|CLONE_SYSVSEM))
+ CLONE_VM|CLONE_FILES|CLONE_SYSVSEM|
+ CLONE_NEWUTS|CLONE_NEWIPC))
goto bad_unshare_out;
if ((err = unshare_thread(unshare_flags)))
@@ -1629,11 +1643,30 @@
goto bad_unshare_cleanup_vm;
if ((err = unshare_semundo(unshare_flags, &new_ulist)))
goto bad_unshare_cleanup_fd;
+ if ((err = unshare_utsname(unshare_flags, &new_uts)))
+ goto bad_unshare_cleanup_semundo;
+ if ((err = unshare_ipcs(unshare_flags, &new_ipc)))
+ goto bad_unshare_cleanup_uts;
- if (new_fs || new_ns || new_sigh || new_mm || new_fd || new_ulist) {
+ if (new_ns || new_uts || new_ipc) {
+ old_nsproxy = current->nsproxy;
+ new_nsproxy = dup_namespaces(old_nsproxy);
+ if (!new_nsproxy) {
+ err = -ENOMEM;
+ goto bad_unshare_cleanup_ipc;
+ }
+ }
+
+ if (new_fs || new_ns || new_sigh || new_mm || new_fd || new_ulist ||
+ new_uts || new_ipc) {
task_lock(current);
+ if (new_nsproxy) {
+ current->nsproxy = new_nsproxy;
+ new_nsproxy = old_nsproxy;
+ }
+
if (new_fs) {
fs = current->fs;
current->fs = new_fs;
@@ -1641,8 +1674,8 @@
}
if (new_ns) {
- ns = current->namespace;
- current->namespace = new_ns;
+ ns = current->nsproxy->namespace;
+ current->nsproxy->namespace = new_ns;
new_ns = ns;
}
@@ -1667,9 +1700,33 @@
new_fd = fd;
}
+ if (new_uts) {
+ uts = current->nsproxy->uts_ns;
+ current->nsproxy->uts_ns = new_uts;
+ new_uts = uts;
+ }
+
+ if (new_ipc) {
+ ipc = current->nsproxy->ipc_ns;
+ current->nsproxy->ipc_ns = new_ipc;
+ new_ipc = ipc;
+ }
+
task_unlock(current);
}
+ if (new_nsproxy)
+ put_nsproxy(new_nsproxy);
+
+bad_unshare_cleanup_ipc:
+ if (new_ipc)
+ put_ipc_ns(new_ipc);
+
+bad_unshare_cleanup_uts:
+ if (new_uts)
+ put_uts_ns(new_uts);
+
+bad_unshare_cleanup_semundo:
bad_unshare_cleanup_fd:
if (new_fd)
put_files_struct(new_fd);
diff --git a/kernel/futex.c b/kernel/futex.c
index 4b6770e..4aaf919 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1527,7 +1527,7 @@
filp->f_mapping = filp->f_dentry->d_inode->i_mapping;
if (signal) {
- err = f_setown(filp, current->pid, 1);
+ err = __f_setown(filp, task_pid(current), PIDTYPE_PID, 1);
if (err < 0) {
goto error;
}
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index ab16a5a..342bca6 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -154,7 +154,6 @@
}
return module_kallsyms_lookup_name(name);
}
-EXPORT_SYMBOL_GPL(kallsyms_lookup_name);
/*
* Lookup an address
diff --git a/kernel/kmod.c b/kernel/kmod.c
index f8121b9..bb4e29d 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -18,8 +18,6 @@
call_usermodehelper wait flag, and remove exec_usermodehelper.
Rusty Russell <rusty@rustcorp.com.au> Jan 2003
*/
-#define __KERNEL_SYSCALLS__
-
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
@@ -169,7 +167,8 @@
retval = -EPERM;
if (current->fs->root)
- retval = execve(sub_info->path, sub_info->argv, sub_info->envp);
+ retval = kernel_execve(sub_info->path,
+ sub_info->argv, sub_info->envp);
/* Exec failed? */
sub_info->retval = retval;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3f57dfd..610c837 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -37,6 +37,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/moduleloader.h>
+#include <linux/kallsyms.h>
#include <asm-generic/sections.h>
#include <asm/cacheflush.h>
#include <asm/errno.h>
@@ -45,6 +46,16 @@
#define KPROBE_HASH_BITS 6
#define KPROBE_TABLE_SIZE (1 << KPROBE_HASH_BITS)
+
+/*
+ * Some oddball architectures like 64bit powerpc have function descriptors
+ * so this must be overridable.
+ */
+#ifndef kprobe_lookup_name
+#define kprobe_lookup_name(name, addr) \
+ addr = ((kprobe_opcode_t *)(kallsyms_lookup_name(name)))
+#endif
+
static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE];
static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE];
static atomic_t kprobe_count;
@@ -308,7 +319,8 @@
}
/* Called with kretprobe_lock held */
-void __kprobes recycle_rp_inst(struct kretprobe_instance *ri)
+void __kprobes recycle_rp_inst(struct kretprobe_instance *ri,
+ struct hlist_head *head)
{
/* remove rp inst off the rprobe_inst_table */
hlist_del(&ri->hlist);
@@ -320,7 +332,7 @@
hlist_add_head(&ri->uflist, &ri->rp->free_instances);
} else
/* Unregistering */
- kfree(ri);
+ hlist_add_head(&ri->hlist, head);
}
struct hlist_head __kprobes *kretprobe_inst_table_head(struct task_struct *tsk)
@@ -336,18 +348,24 @@
*/
void __kprobes kprobe_flush_task(struct task_struct *tk)
{
- struct kretprobe_instance *ri;
- struct hlist_head *head;
+ struct kretprobe_instance *ri;
+ struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
unsigned long flags = 0;
+ INIT_HLIST_HEAD(&empty_rp);
spin_lock_irqsave(&kretprobe_lock, flags);
- head = kretprobe_inst_table_head(tk);
- hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
- if (ri->task == tk)
- recycle_rp_inst(ri);
- }
+ head = kretprobe_inst_table_head(tk);
+ hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
+ if (ri->task == tk)
+ recycle_rp_inst(ri, &empty_rp);
+ }
spin_unlock_irqrestore(&kretprobe_lock, flags);
+
+ hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
+ hlist_del(&ri->hlist);
+ kfree(ri);
+ }
}
static inline void free_rp_inst(struct kretprobe *rp)
@@ -447,6 +465,21 @@
struct kprobe *old_p;
struct module *probed_mod;
+ /*
+ * If we have a symbol_name argument look it up,
+ * and add it to the address. That way the addr
+ * field can either be global or relative to a symbol.
+ */
+ if (p->symbol_name) {
+ if (p->addr)
+ return -EINVAL;
+ kprobe_lookup_name(p->symbol_name, p->addr);
+ }
+
+ if (!p->addr)
+ return -EINVAL;
+ p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset);
+
if ((!kernel_text_address((unsigned long) p->addr)) ||
in_kprobes_functions((unsigned long) p->addr))
return -EINVAL;
@@ -488,7 +521,7 @@
(ARCH_INACTIVE_KPROBE_COUNT + 1))
register_page_fault_notifier(&kprobe_page_fault_nb);
- arch_arm_kprobe(p);
+ arch_arm_kprobe(p);
out:
mutex_unlock(&kprobe_mutex);
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index e596525..4c05534 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -518,9 +518,9 @@
static void print_kernel_version(void)
{
- printk("%s %.*s\n", system_utsname.release,
- (int)strcspn(system_utsname.version, " "),
- system_utsname.version);
+ printk("%s %.*s\n", init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
}
/*
diff --git a/kernel/module.c b/kernel/module.c
index 05625d5..7c77a0a 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -851,6 +851,7 @@
printk("%s: no version for \"%s\" found: kernel tainted.\n",
mod->name, symname);
add_taint(TAINT_FORCED_MODULE);
+ mod->taints |= TAINT_FORCED_MODULE;
}
return 1;
}
@@ -1339,6 +1340,7 @@
printk(KERN_WARNING "%s: module license '%s' taints kernel.\n",
mod->name, license);
add_taint(TAINT_PROPRIETARY_MODULE);
+ mod->taints |= TAINT_PROPRIETARY_MODULE;
}
}
@@ -1618,6 +1620,7 @@
/* This is allowed: modprobe --force will invalidate it. */
if (!modmagic) {
add_taint(TAINT_FORCED_MODULE);
+ mod->taints |= TAINT_FORCED_MODULE;
printk(KERN_WARNING "%s: no version magic, tainting kernel.\n",
mod->name);
} else if (!same_magic(modmagic, vermagic)) {
@@ -1711,10 +1714,14 @@
/* Set up license info based on the info section */
set_license(mod, get_modinfo(sechdrs, infoindex, "license"));
- if (strcmp(mod->name, "ndiswrapper") == 0)
+ if (strcmp(mod->name, "ndiswrapper") == 0) {
add_taint(TAINT_PROPRIETARY_MODULE);
- if (strcmp(mod->name, "driverloader") == 0)
+ mod->taints |= TAINT_PROPRIETARY_MODULE;
+ }
+ if (strcmp(mod->name, "driverloader") == 0) {
add_taint(TAINT_PROPRIETARY_MODULE);
+ mod->taints |= TAINT_PROPRIETARY_MODULE;
+ }
/* Set up MODINFO_ATTR fields */
setup_modinfo(mod, sechdrs, infoindex);
@@ -1760,6 +1767,7 @@
printk(KERN_WARNING "%s: No versions for exported symbols."
" Tainting kernel.\n", mod->name);
add_taint(TAINT_FORCED_MODULE);
+ mod->taints |= TAINT_FORCED_MODULE;
}
#endif
@@ -2226,14 +2234,37 @@
return mod;
}
+static char *taint_flags(unsigned int taints, char *buf)
+{
+ *buf = '\0';
+ if (taints) {
+ int bx;
+
+ buf[0] = '(';
+ bx = 1;
+ if (taints & TAINT_PROPRIETARY_MODULE)
+ buf[bx++] = 'P';
+ if (taints & TAINT_FORCED_MODULE)
+ buf[bx++] = 'F';
+ /*
+ * TAINT_FORCED_RMMOD: could be added.
+ * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't
+ * apply to modules.
+ */
+ buf[bx] = ')';
+ }
+ return buf;
+}
+
/* Don't grab lock, we're oopsing. */
void print_modules(void)
{
struct module *mod;
+ char buf[8];
printk("Modules linked in:");
list_for_each_entry(mod, &modules, list)
- printk(" %s", mod->name);
+ printk(" %s%s", mod->name, taint_flags(mod->taints, buf));
printk("\n");
}
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
new file mode 100644
index 0000000..6ebdb82
--- /dev/null
+++ b/kernel/nsproxy.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2006 IBM Corporation
+ *
+ * Author: Serge Hallyn <serue@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ * Jun 2006 - namespaces support
+ * OpenVZ, SWsoft Inc.
+ * Pavel Emelianov <xemul@openvz.org>
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/nsproxy.h>
+#include <linux/init_task.h>
+#include <linux/namespace.h>
+#include <linux/utsname.h>
+
+struct nsproxy init_nsproxy = INIT_NSPROXY(init_nsproxy);
+
+static inline void get_nsproxy(struct nsproxy *ns)
+{
+ atomic_inc(&ns->count);
+}
+
+void get_task_namespaces(struct task_struct *tsk)
+{
+ struct nsproxy *ns = tsk->nsproxy;
+ if (ns) {
+ get_nsproxy(ns);
+ }
+}
+
+/*
+ * creates a copy of "orig" with refcount 1.
+ * This does not grab references to the contained namespaces,
+ * so that needs to be done by dup_namespaces.
+ */
+static inline struct nsproxy *clone_namespaces(struct nsproxy *orig)
+{
+ struct nsproxy *ns;
+
+ ns = kmalloc(sizeof(struct nsproxy), GFP_KERNEL);
+ if (ns) {
+ memcpy(ns, orig, sizeof(struct nsproxy));
+ atomic_set(&ns->count, 1);
+ }
+ return ns;
+}
+
+/*
+ * copies the nsproxy, setting refcount to 1, and grabbing a
+ * reference to all contained namespaces. Called from
+ * sys_unshare()
+ */
+struct nsproxy *dup_namespaces(struct nsproxy *orig)
+{
+ struct nsproxy *ns = clone_namespaces(orig);
+
+ if (ns) {
+ if (ns->namespace)
+ get_namespace(ns->namespace);
+ if (ns->uts_ns)
+ get_uts_ns(ns->uts_ns);
+ if (ns->ipc_ns)
+ get_ipc_ns(ns->ipc_ns);
+ }
+
+ return ns;
+}
+
+/*
+ * called from clone. This now handles copy for nsproxy and all
+ * namespaces therein.
+ */
+int copy_namespaces(int flags, struct task_struct *tsk)
+{
+ struct nsproxy *old_ns = tsk->nsproxy;
+ struct nsproxy *new_ns;
+ int err = 0;
+
+ if (!old_ns)
+ return 0;
+
+ get_nsproxy(old_ns);
+
+ if (!(flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC)))
+ return 0;
+
+ new_ns = clone_namespaces(old_ns);
+ if (!new_ns) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ tsk->nsproxy = new_ns;
+
+ err = copy_namespace(flags, tsk);
+ if (err)
+ goto out_ns;
+
+ err = copy_utsname(flags, tsk);
+ if (err)
+ goto out_uts;
+
+ err = copy_ipcs(flags, tsk);
+ if (err)
+ goto out_ipc;
+
+out:
+ put_nsproxy(old_ns);
+ return err;
+
+out_ipc:
+ if (new_ns->uts_ns)
+ put_uts_ns(new_ns->uts_ns);
+out_uts:
+ if (new_ns->namespace)
+ put_namespace(new_ns->namespace);
+out_ns:
+ tsk->nsproxy = old_ns;
+ kfree(new_ns);
+ goto out;
+}
+
+void free_nsproxy(struct nsproxy *ns)
+{
+ if (ns->namespace)
+ put_namespace(ns->namespace);
+ if (ns->uts_ns)
+ put_uts_ns(ns->uts_ns);
+ if (ns->ipc_ns)
+ put_ipc_ns(ns->ipc_ns);
+ kfree(ns);
+}
diff --git a/kernel/pid.c b/kernel/pid.c
index 8387e8c..b914392 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/hash.h>
+#include <linux/pspace.h>
#define pid_hashfn(nr) hash_long((unsigned long)nr, pidhash_shift)
static struct hlist_head *pid_hash;
@@ -33,17 +34,20 @@
static kmem_cache_t *pid_cachep;
int pid_max = PID_MAX_DEFAULT;
-int last_pid;
#define RESERVED_PIDS 300
int pid_max_min = RESERVED_PIDS + 1;
int pid_max_max = PID_MAX_LIMIT;
-#define PIDMAP_ENTRIES ((PID_MAX_LIMIT + 8*PAGE_SIZE - 1)/PAGE_SIZE/8)
#define BITS_PER_PAGE (PAGE_SIZE*8)
#define BITS_PER_PAGE_MASK (BITS_PER_PAGE-1)
-#define mk_pid(map, off) (((map) - pidmap_array)*BITS_PER_PAGE + (off))
+
+static inline int mk_pid(struct pspace *pspace, struct pidmap *map, int off)
+{
+ return (map - pspace->pidmap)*BITS_PER_PAGE + off;
+}
+
#define find_next_offset(map, off) \
find_next_zero_bit((map)->page, BITS_PER_PAGE, off)
@@ -53,13 +57,12 @@
* value does not cause lots of bitmaps to be allocated, but
* the scheme scales to up to 4 million PIDs, runtime.
*/
-typedef struct pidmap {
- atomic_t nr_free;
- void *page;
-} pidmap_t;
-
-static pidmap_t pidmap_array[PIDMAP_ENTRIES] =
- { [ 0 ... PIDMAP_ENTRIES-1 ] = { ATOMIC_INIT(BITS_PER_PAGE), NULL } };
+struct pspace init_pspace = {
+ .pidmap = {
+ [ 0 ... PIDMAP_ENTRIES-1] = { ATOMIC_INIT(BITS_PER_PAGE), NULL }
+ },
+ .last_pid = 0
+};
/*
* Note: disable interrupts while the pidmap_lock is held as an
@@ -74,40 +77,41 @@
* irq handlers that take it we can leave the interrupts enabled.
* For now it is easier to be safe than to prove it can't happen.
*/
+
static __cacheline_aligned_in_smp DEFINE_SPINLOCK(pidmap_lock);
-static fastcall void free_pidmap(int pid)
+static fastcall void free_pidmap(struct pspace *pspace, int pid)
{
- pidmap_t *map = pidmap_array + pid / BITS_PER_PAGE;
+ struct pidmap *map = pspace->pidmap + pid / BITS_PER_PAGE;
int offset = pid & BITS_PER_PAGE_MASK;
clear_bit(offset, map->page);
atomic_inc(&map->nr_free);
}
-static int alloc_pidmap(void)
+static int alloc_pidmap(struct pspace *pspace)
{
- int i, offset, max_scan, pid, last = last_pid;
- pidmap_t *map;
+ int i, offset, max_scan, pid, last = pspace->last_pid;
+ struct pidmap *map;
pid = last + 1;
if (pid >= pid_max)
pid = RESERVED_PIDS;
offset = pid & BITS_PER_PAGE_MASK;
- map = &pidmap_array[pid/BITS_PER_PAGE];
+ map = &pspace->pidmap[pid/BITS_PER_PAGE];
max_scan = (pid_max + BITS_PER_PAGE - 1)/BITS_PER_PAGE - !offset;
for (i = 0; i <= max_scan; ++i) {
if (unlikely(!map->page)) {
- unsigned long page = get_zeroed_page(GFP_KERNEL);
+ void *page = kzalloc(PAGE_SIZE, GFP_KERNEL);
/*
* Free the page if someone raced with us
* installing it:
*/
spin_lock_irq(&pidmap_lock);
if (map->page)
- free_page(page);
+ kfree(page);
else
- map->page = (void *)page;
+ map->page = page;
spin_unlock_irq(&pidmap_lock);
if (unlikely(!map->page))
break;
@@ -116,11 +120,11 @@
do {
if (!test_and_set_bit(offset, map->page)) {
atomic_dec(&map->nr_free);
- last_pid = pid;
+ pspace->last_pid = pid;
return pid;
}
offset = find_next_offset(map, offset);
- pid = mk_pid(map, offset);
+ pid = mk_pid(pspace, map, offset);
/*
* find_next_offset() found a bit, the pid from it
* is in-bounds, and if we fell back to the last
@@ -131,16 +135,34 @@
(i != max_scan || pid < last ||
!((last+1) & BITS_PER_PAGE_MASK)));
}
- if (map < &pidmap_array[(pid_max-1)/BITS_PER_PAGE]) {
+ if (map < &pspace->pidmap[(pid_max-1)/BITS_PER_PAGE]) {
++map;
offset = 0;
} else {
- map = &pidmap_array[0];
+ map = &pspace->pidmap[0];
offset = RESERVED_PIDS;
if (unlikely(last == offset))
break;
}
- pid = mk_pid(map, offset);
+ pid = mk_pid(pspace, map, offset);
+ }
+ return -1;
+}
+
+static int next_pidmap(struct pspace *pspace, int last)
+{
+ int offset;
+ struct pidmap *map, *end;
+
+ offset = (last + 1) & BITS_PER_PAGE_MASK;
+ map = &pspace->pidmap[(last + 1)/BITS_PER_PAGE];
+ end = &pspace->pidmap[PIDMAP_ENTRIES];
+ for (; map < end; map++, offset = 0) {
+ if (unlikely(!map->page))
+ continue;
+ offset = find_next_bit((map)->page, BITS_PER_PAGE, offset);
+ if (offset < BITS_PER_PAGE)
+ return mk_pid(pspace, map, offset);
}
return -1;
}
@@ -153,6 +175,7 @@
atomic_dec_and_test(&pid->count))
kmem_cache_free(pid_cachep, pid);
}
+EXPORT_SYMBOL_GPL(put_pid);
static void delayed_put_pid(struct rcu_head *rhp)
{
@@ -169,7 +192,7 @@
hlist_del_rcu(&pid->pid_chain);
spin_unlock_irqrestore(&pidmap_lock, flags);
- free_pidmap(pid->nr);
+ free_pidmap(&init_pspace, pid->nr);
call_rcu(&pid->rcu, delayed_put_pid);
}
@@ -183,7 +206,7 @@
if (!pid)
goto out;
- nr = alloc_pidmap();
+ nr = alloc_pidmap(&init_pspace);
if (nr < 0)
goto out_free;
@@ -217,6 +240,7 @@
}
return NULL;
}
+EXPORT_SYMBOL_GPL(find_pid);
int fastcall attach_pid(struct task_struct *task, enum pid_type type, int nr)
{
@@ -280,6 +304,15 @@
EXPORT_SYMBOL(find_task_by_pid_type);
+struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
+{
+ struct pid *pid;
+ rcu_read_lock();
+ pid = get_pid(task->pids[type].pid);
+ rcu_read_unlock();
+ return pid;
+}
+
struct task_struct *fastcall get_pid_task(struct pid *pid, enum pid_type type)
{
struct task_struct *result;
@@ -303,6 +336,26 @@
}
/*
+ * Used by proc to find the first pid that is greater then or equal to nr.
+ *
+ * If there is a pid at nr this function is exactly the same as find_pid.
+ */
+struct pid *find_ge_pid(int nr)
+{
+ struct pid *pid;
+
+ do {
+ pid = find_pid(nr);
+ if (pid)
+ break;
+ nr = next_pidmap(&init_pspace, nr);
+ } while (nr > 0);
+
+ return pid;
+}
+EXPORT_SYMBOL_GPL(find_get_pid);
+
+/*
* The pid hash table is scaled according to the amount of memory in the
* machine. From a minimum of 16 slots up to 4096 slots at one gigabyte or
* more.
@@ -329,10 +382,10 @@
void __init pidmap_init(void)
{
- pidmap_array->page = (void *)get_zeroed_page(GFP_KERNEL);
+ init_pspace.pidmap[0].page = kzalloc(PAGE_SIZE, GFP_KERNEL);
/* Reserve PID 0. We never call free_pidmap(0) */
- set_bit(0, pidmap_array->page);
- atomic_dec(&pidmap_array->nr_free);
+ set_bit(0, init_pspace.pidmap[0].page);
+ atomic_dec(&init_pspace.pidmap[0].nr_free);
pid_cachep = kmem_cache_create("pid", sizeof(struct pid),
__alignof__(struct pid),
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 1b84313..99f9b7d 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -906,7 +906,7 @@
memset(info, 0, sizeof(struct swsusp_info));
info->version_code = LINUX_VERSION_CODE;
info->num_physpages = num_physpages;
- memcpy(&info->uts, &system_utsname, sizeof(system_utsname));
+ memcpy(&info->uts, init_utsname(), sizeof(struct new_utsname));
info->cpus = num_online_cpus();
info->image_pages = nr_copy_pages;
info->pages = nr_copy_pages + nr_meta_pages + 1;
@@ -1050,13 +1050,13 @@
reason = "kernel version";
if (info->num_physpages != num_physpages)
reason = "memory size";
- if (strcmp(info->uts.sysname,system_utsname.sysname))
+ if (strcmp(info->uts.sysname,init_utsname()->sysname))
reason = "system type";
- if (strcmp(info->uts.release,system_utsname.release))
+ if (strcmp(info->uts.release,init_utsname()->release))
reason = "kernel release";
- if (strcmp(info->uts.version,system_utsname.version))
+ if (strcmp(info->uts.version,init_utsname()->version))
reason = "version";
- if (strcmp(info->uts.machine,system_utsname.machine))
+ if (strcmp(info->uts.machine,init_utsname()->machine))
reason = "machine";
if (reason) {
printk(KERN_ERR "swsusp: Resume mismatch: %s\n", reason);
diff --git a/kernel/sched.c b/kernel/sched.c
index 2bbd948..e4e54e8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4384,7 +4384,10 @@
#ifndef CONFIG_SMP
cpumask_t cpu_online_map __read_mostly = CPU_MASK_ALL;
+EXPORT_SYMBOL(cpu_online_map);
+
cpumask_t cpu_possible_map __read_mostly = CPU_MASK_ALL;
+EXPORT_SYMBOL(cpu_possible_map);
#endif
long sched_getaffinity(pid_t pid, cpumask_t *mask)
diff --git a/kernel/signal.c b/kernel/signal.c
index fb5da6d..7ed8d53 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1055,28 +1055,44 @@
}
/*
- * kill_pg_info() sends a signal to a process group: this is what the tty
+ * kill_pgrp_info() sends a signal to a process group: this is what the tty
* control characters do (^C, ^Z etc)
*/
-int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
+int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp)
{
struct task_struct *p = NULL;
int retval, success;
- if (pgrp <= 0)
- return -EINVAL;
-
success = 0;
retval = -ESRCH;
- do_each_task_pid(pgrp, PIDTYPE_PGID, p) {
+ do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
int err = group_send_sig_info(sig, info, p);
success |= !err;
retval = err;
- } while_each_task_pid(pgrp, PIDTYPE_PGID, p);
+ } while_each_pid_task(pgrp, PIDTYPE_PGID, p);
return success ? 0 : retval;
}
+int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp)
+{
+ int retval;
+
+ read_lock(&tasklist_lock);
+ retval = __kill_pgrp_info(sig, info, pgrp);
+ read_unlock(&tasklist_lock);
+
+ return retval;
+}
+
+int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
+{
+ if (pgrp <= 0)
+ return -EINVAL;
+
+ return __kill_pgrp_info(sig, info, find_pid(pgrp));
+}
+
int
kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
{
@@ -1089,8 +1105,7 @@
return retval;
}
-int
-kill_proc_info(int sig, struct siginfo *info, pid_t pid)
+int kill_pid_info(int sig, struct siginfo *info, struct pid *pid)
{
int error;
int acquired_tasklist_lock = 0;
@@ -1101,7 +1116,7 @@
read_lock(&tasklist_lock);
acquired_tasklist_lock = 1;
}
- p = find_task_by_pid(pid);
+ p = pid_task(pid, PIDTYPE_PID);
error = -ESRCH;
if (p)
error = group_send_sig_info(sig, info, p);
@@ -1111,8 +1126,18 @@
return error;
}
-/* like kill_proc_info(), but doesn't use uid/euid of "current" */
-int kill_proc_info_as_uid(int sig, struct siginfo *info, pid_t pid,
+int
+kill_proc_info(int sig, struct siginfo *info, pid_t pid)
+{
+ int error;
+ rcu_read_lock();
+ error = kill_pid_info(sig, info, find_pid(pid));
+ rcu_read_unlock();
+ return error;
+}
+
+/* like kill_pid_info(), but doesn't use uid/euid of "current" */
+int kill_pid_info_as_uid(int sig, struct siginfo *info, struct pid *pid,
uid_t uid, uid_t euid, u32 secid)
{
int ret = -EINVAL;
@@ -1122,7 +1147,7 @@
return ret;
read_lock(&tasklist_lock);
- p = find_task_by_pid(pid);
+ p = pid_task(pid, PIDTYPE_PID);
if (!p) {
ret = -ESRCH;
goto out_unlock;
@@ -1146,7 +1171,7 @@
read_unlock(&tasklist_lock);
return ret;
}
-EXPORT_SYMBOL_GPL(kill_proc_info_as_uid);
+EXPORT_SYMBOL_GPL(kill_pid_info_as_uid);
/*
* kill_something_info() interprets pid in interesting ways just like kill(2).
@@ -1264,6 +1289,18 @@
return 0;
}
+int kill_pgrp(struct pid *pid, int sig, int priv)
+{
+ return kill_pgrp_info(sig, __si_special(priv), pid);
+}
+EXPORT_SYMBOL(kill_pgrp);
+
+int kill_pid(struct pid *pid, int sig, int priv)
+{
+ return kill_pid_info(sig, __si_special(priv), pid);
+}
+EXPORT_SYMBOL(kill_pid);
+
int
kill_pg(pid_t pgrp, int sig, int priv)
{
diff --git a/kernel/sys.c b/kernel/sys.c
index 2460581..2314867 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -92,7 +92,8 @@
*/
int C_A_D = 1;
-int cad_pid = 1;
+struct pid *cad_pid;
+EXPORT_SYMBOL(cad_pid);
/*
* Notifier list for kernel code which wants to be called
@@ -221,7 +222,7 @@
* of the last notifier function called.
*/
-int atomic_notifier_call_chain(struct atomic_notifier_head *nh,
+int __kprobes atomic_notifier_call_chain(struct atomic_notifier_head *nh,
unsigned long val, void *v)
{
int ret;
@@ -773,10 +774,9 @@
if (C_A_D)
schedule_work(&cad_work);
else
- kill_proc(cad_pid, SIGINT, 1);
+ kill_cad_pid(SIGINT, 1);
}
-
/*
* Unprivileged users may change the real gid to the effective gid
* or vice versa. (BSD-style)
@@ -1655,7 +1655,7 @@
int errno = 0;
down_read(&uts_sem);
- if (copy_to_user(name,&system_utsname,sizeof *name))
+ if (copy_to_user(name, utsname(), sizeof *name))
errno = -EFAULT;
up_read(&uts_sem);
return errno;
@@ -1673,8 +1673,8 @@
down_write(&uts_sem);
errno = -EFAULT;
if (!copy_from_user(tmp, name, len)) {
- memcpy(system_utsname.nodename, tmp, len);
- system_utsname.nodename[len] = 0;
+ memcpy(utsname()->nodename, tmp, len);
+ utsname()->nodename[len] = 0;
errno = 0;
}
up_write(&uts_sem);
@@ -1690,11 +1690,11 @@
if (len < 0)
return -EINVAL;
down_read(&uts_sem);
- i = 1 + strlen(system_utsname.nodename);
+ i = 1 + strlen(utsname()->nodename);
if (i > len)
i = len;
errno = 0;
- if (copy_to_user(name, system_utsname.nodename, i))
+ if (copy_to_user(name, utsname()->nodename, i))
errno = -EFAULT;
up_read(&uts_sem);
return errno;
@@ -1719,8 +1719,8 @@
down_write(&uts_sem);
errno = -EFAULT;
if (!copy_from_user(tmp, name, len)) {
- memcpy(system_utsname.domainname, tmp, len);
- system_utsname.domainname[len] = 0;
+ memcpy(utsname()->domainname, tmp, len);
+ utsname()->domainname[len] = 0;
errno = 0;
}
up_write(&uts_sem);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ba42694..8020fb2 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -68,7 +68,6 @@
extern int core_uses_pid;
extern int suid_dumpable;
extern char core_pattern[];
-extern int cad_pid;
extern int pid_max;
extern int min_free_kbytes;
extern int printk_ratelimit_jiffies;
@@ -92,13 +91,8 @@
extern int sg_big_buff;
#endif
#ifdef CONFIG_SYSVIPC
-extern size_t shm_ctlmax;
-extern size_t shm_ctlall;
-extern int shm_ctlmni;
-extern int msg_ctlmax;
-extern int msg_ctlmnb;
-extern int msg_ctlmni;
-extern int sem_ctls[];
+static int proc_do_ipc_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
#endif
#ifdef __sparc__
@@ -139,7 +133,10 @@
void __user *, size_t, ctl_table *, void **);
#endif
-static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
+static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+
+static int proc_do_cad_pid(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos);
static ctl_table root_table[];
@@ -229,51 +226,100 @@
};
static ctl_table kern_table[] = {
+#ifndef CONFIG_UTS_NS
{
.ctl_name = KERN_OSTYPE,
.procname = "ostype",
- .data = system_utsname.sysname,
- .maxlen = sizeof(system_utsname.sysname),
+ .data = init_uts_ns.name.sysname,
+ .maxlen = sizeof(init_uts_ns.name.sysname),
.mode = 0444,
- .proc_handler = &proc_doutsstring,
+ .proc_handler = &proc_do_uts_string,
.strategy = &sysctl_string,
},
{
.ctl_name = KERN_OSRELEASE,
.procname = "osrelease",
- .data = system_utsname.release,
- .maxlen = sizeof(system_utsname.release),
+ .data = init_uts_ns.name.release,
+ .maxlen = sizeof(init_uts_ns.name.release),
.mode = 0444,
- .proc_handler = &proc_doutsstring,
+ .proc_handler = &proc_do_uts_string,
.strategy = &sysctl_string,
},
{
.ctl_name = KERN_VERSION,
.procname = "version",
- .data = system_utsname.version,
- .maxlen = sizeof(system_utsname.version),
+ .data = init_uts_ns.name.version,
+ .maxlen = sizeof(init_uts_ns.name.version),
.mode = 0444,
- .proc_handler = &proc_doutsstring,
+ .proc_handler = &proc_do_uts_string,
.strategy = &sysctl_string,
},
{
.ctl_name = KERN_NODENAME,
.procname = "hostname",
- .data = system_utsname.nodename,
- .maxlen = sizeof(system_utsname.nodename),
+ .data = init_uts_ns.name.nodename,
+ .maxlen = sizeof(init_uts_ns.name.nodename),
.mode = 0644,
- .proc_handler = &proc_doutsstring,
+ .proc_handler = &proc_do_uts_string,
.strategy = &sysctl_string,
},
{
.ctl_name = KERN_DOMAINNAME,
.procname = "domainname",
- .data = system_utsname.domainname,
- .maxlen = sizeof(system_utsname.domainname),
+ .data = init_uts_ns.name.domainname,
+ .maxlen = sizeof(init_uts_ns.name.domainname),
.mode = 0644,
- .proc_handler = &proc_doutsstring,
+ .proc_handler = &proc_do_uts_string,
.strategy = &sysctl_string,
},
+#else /* !CONFIG_UTS_NS */
+ {
+ .ctl_name = KERN_OSTYPE,
+ .procname = "ostype",
+ .data = NULL,
+ /* could maybe use __NEW_UTS_LEN here? */
+ .maxlen = FIELD_SIZEOF(struct new_utsname, sysname),
+ .mode = 0444,
+ .proc_handler = &proc_do_uts_string,
+ .strategy = &sysctl_string,
+ },
+ {
+ .ctl_name = KERN_OSRELEASE,
+ .procname = "osrelease",
+ .data = NULL,
+ .maxlen = FIELD_SIZEOF(struct new_utsname, release),
+ .mode = 0444,
+ .proc_handler = &proc_do_uts_string,
+ .strategy = &sysctl_string,
+ },
+ {
+ .ctl_name = KERN_VERSION,
+ .procname = "version",
+ .data = NULL,
+ .maxlen = FIELD_SIZEOF(struct new_utsname, version),
+ .mode = 0444,
+ .proc_handler = &proc_do_uts_string,
+ .strategy = &sysctl_string,
+ },
+ {
+ .ctl_name = KERN_NODENAME,
+ .procname = "hostname",
+ .data = NULL,
+ .maxlen = FIELD_SIZEOF(struct new_utsname, nodename),
+ .mode = 0644,
+ .proc_handler = &proc_do_uts_string,
+ .strategy = &sysctl_string,
+ },
+ {
+ .ctl_name = KERN_DOMAINNAME,
+ .procname = "domainname",
+ .data = NULL,
+ .maxlen = FIELD_SIZEOF(struct new_utsname, domainname),
+ .mode = 0644,
+ .proc_handler = &proc_do_uts_string,
+ .strategy = &sysctl_string,
+ },
+#endif /* !CONFIG_UTS_NS */
{
.ctl_name = KERN_PANIC,
.procname = "panic",
@@ -432,58 +478,58 @@
{
.ctl_name = KERN_SHMMAX,
.procname = "shmmax",
- .data = &shm_ctlmax,
+ .data = NULL,
.maxlen = sizeof (size_t),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SHMALL,
.procname = "shmall",
- .data = &shm_ctlall,
+ .data = NULL,
.maxlen = sizeof (size_t),
.mode = 0644,
- .proc_handler = &proc_doulongvec_minmax,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SHMMNI,
.procname = "shmmni",
- .data = &shm_ctlmni,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMAX,
.procname = "msgmax",
- .data = &msg_ctlmax,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMNI,
.procname = "msgmni",
- .data = &msg_ctlmni,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_MSGMNB,
.procname = "msgmnb",
- .data = &msg_ctlmnb,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
{
.ctl_name = KERN_SEM,
.procname = "sem",
- .data = &sem_ctls,
+ .data = NULL,
.maxlen = 4*sizeof (int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_ipc_string,
},
#endif
#ifdef CONFIG_MAGIC_SYSRQ
@@ -499,10 +545,10 @@
{
.ctl_name = KERN_CADPID,
.procname = "cad_pid",
- .data = &cad_pid,
+ .data = NULL,
.maxlen = sizeof (int),
.mode = 0600,
- .proc_handler = &proc_dointvec,
+ .proc_handler = &proc_do_cad_pid,
},
{
.ctl_name = KERN_MAX_THREADS,
@@ -1624,6 +1670,56 @@
return do_rw_proc(1, file, (char __user *) buf, count, ppos);
}
+static int _proc_do_string(void* data, int maxlen, int write,
+ struct file *filp, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ size_t len;
+ char __user *p;
+ char c;
+
+ if (!data || !maxlen || !*lenp ||
+ (*ppos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+
+ if (write) {
+ len = 0;
+ p = buffer;
+ while (len < *lenp) {
+ if (get_user(c, p++))
+ return -EFAULT;
+ if (c == 0 || c == '\n')
+ break;
+ len++;
+ }
+ if (len >= maxlen)
+ len = maxlen-1;
+ if(copy_from_user(data, buffer, len))
+ return -EFAULT;
+ ((char *) data)[len] = 0;
+ *ppos += *lenp;
+ } else {
+ len = strlen(data);
+ if (len > maxlen)
+ len = maxlen;
+ if (len > *lenp)
+ len = *lenp;
+ if (len)
+ if(copy_to_user(buffer, data, len))
+ return -EFAULT;
+ if (len < *lenp) {
+ if(put_user('\n', ((char __user *) buffer) + len))
+ return -EFAULT;
+ len++;
+ }
+ *lenp = len;
+ *ppos += len;
+ }
+ return 0;
+}
+
/**
* proc_dostring - read a string sysctl
* @table: the sysctl table
@@ -1645,50 +1741,8 @@
int proc_dostring(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
- size_t len;
- char __user *p;
- char c;
-
- if (!table->data || !table->maxlen || !*lenp ||
- (*ppos && !write)) {
- *lenp = 0;
- return 0;
- }
-
- if (write) {
- len = 0;
- p = buffer;
- while (len < *lenp) {
- if (get_user(c, p++))
- return -EFAULT;
- if (c == 0 || c == '\n')
- break;
- len++;
- }
- if (len >= table->maxlen)
- len = table->maxlen-1;
- if(copy_from_user(table->data, buffer, len))
- return -EFAULT;
- ((char *) table->data)[len] = 0;
- *ppos += *lenp;
- } else {
- len = strlen(table->data);
- if (len > table->maxlen)
- len = table->maxlen;
- if (len > *lenp)
- len = *lenp;
- if (len)
- if(copy_to_user(buffer, table->data, len))
- return -EFAULT;
- if (len < *lenp) {
- if(put_user('\n', ((char __user *) buffer) + len))
- return -EFAULT;
- len++;
- }
- *lenp = len;
- *ppos += len;
- }
- return 0;
+ return _proc_do_string(table->data, table->maxlen, write, filp,
+ buffer, lenp, ppos);
}
/*
@@ -1696,7 +1750,8 @@
* to observe. Should this be in kernel/sys.c ????
*/
-static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
+#ifndef CONFIG_UTS_NS
+static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int r;
@@ -1712,6 +1767,48 @@
}
return r;
}
+#else /* !CONFIG_UTS_NS */
+static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int r;
+ struct uts_namespace* uts_ns = current->nsproxy->uts_ns;
+ char* which;
+
+ switch (table->ctl_name) {
+ case KERN_OSTYPE:
+ which = uts_ns->name.sysname;
+ break;
+ case KERN_NODENAME:
+ which = uts_ns->name.nodename;
+ break;
+ case KERN_OSRELEASE:
+ which = uts_ns->name.release;
+ break;
+ case KERN_VERSION:
+ which = uts_ns->name.version;
+ break;
+ case KERN_DOMAINNAME:
+ which = uts_ns->name.domainname;
+ break;
+ default:
+ r = -EINVAL;
+ goto out;
+ }
+
+ if (!write) {
+ down_read(&uts_sem);
+ r=_proc_do_string(which,table->maxlen,0,filp,buffer,lenp, ppos);
+ up_read(&uts_sem);
+ } else {
+ down_write(&uts_sem);
+ r=_proc_do_string(which,table->maxlen,1,filp,buffer,lenp, ppos);
+ up_write(&uts_sem);
+ }
+ out:
+ return r;
+}
+#endif /* !CONFIG_UTS_NS */
static int do_proc_dointvec_conv(int *negp, unsigned long *lvalp,
int *valp,
@@ -1732,8 +1829,9 @@
return 0;
}
-static int do_proc_dointvec(ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos,
+static int __do_proc_dointvec(void *tbl_data, ctl_table *table,
+ int write, struct file *filp, void __user *buffer,
+ size_t *lenp, loff_t *ppos,
int (*conv)(int *negp, unsigned long *lvalp, int *valp,
int write, void *data),
void *data)
@@ -1746,13 +1844,13 @@
char buf[TMPBUFLEN], *p;
char __user *s = buffer;
- if (!table->data || !table->maxlen || !*lenp ||
+ if (!tbl_data || !table->maxlen || !*lenp ||
(*ppos && !write)) {
*lenp = 0;
return 0;
}
- i = (int *) table->data;
+ i = (int *) tbl_data;
vleft = table->maxlen / sizeof(*i);
left = *lenp;
@@ -1841,6 +1939,16 @@
#undef TMPBUFLEN
}
+static int do_proc_dointvec(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos,
+ int (*conv)(int *negp, unsigned long *lvalp, int *valp,
+ int write, void *data),
+ void *data)
+{
+ return __do_proc_dointvec(table->data, table, write, filp,
+ buffer, lenp, ppos, conv, data);
+}
+
/**
* proc_dointvec - read a vector of integers
* @table: the sysctl table
@@ -1974,7 +2082,7 @@
do_proc_dointvec_minmax_conv, ¶m);
}
-static int do_proc_doulongvec_minmax(ctl_table *table, int write,
+static int __do_proc_doulongvec_minmax(void *data, ctl_table *table, int write,
struct file *filp,
void __user *buffer,
size_t *lenp, loff_t *ppos,
@@ -1988,13 +2096,13 @@
char buf[TMPBUFLEN], *p;
char __user *s = buffer;
- if (!table->data || !table->maxlen || !*lenp ||
+ if (!data || !table->maxlen || !*lenp ||
(*ppos && !write)) {
*lenp = 0;
return 0;
}
- i = (unsigned long *) table->data;
+ i = (unsigned long *) data;
min = (unsigned long *) table->extra1;
max = (unsigned long *) table->extra2;
vleft = table->maxlen / sizeof(unsigned long);
@@ -2079,6 +2187,17 @@
#undef TMPBUFLEN
}
+static int do_proc_doulongvec_minmax(ctl_table *table, int write,
+ struct file *filp,
+ void __user *buffer,
+ size_t *lenp, loff_t *ppos,
+ unsigned long convmul,
+ unsigned long convdiv)
+{
+ return __do_proc_doulongvec_minmax(table->data, table, write,
+ filp, buffer, lenp, ppos, convmul, convdiv);
+}
+
/**
* proc_doulongvec_minmax - read a vector of long integers with min/max values
* @table: the sysctl table
@@ -2267,6 +2386,71 @@
do_proc_dointvec_ms_jiffies_conv, NULL);
}
+#ifdef CONFIG_SYSVIPC
+static int proc_do_ipc_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ void *data;
+ struct ipc_namespace *ns;
+
+ ns = current->nsproxy->ipc_ns;
+
+ switch (table->ctl_name) {
+ case KERN_SHMMAX:
+ data = &ns->shm_ctlmax;
+ goto proc_minmax;
+ case KERN_SHMALL:
+ data = &ns->shm_ctlall;
+ goto proc_minmax;
+ case KERN_SHMMNI:
+ data = &ns->shm_ctlmni;
+ break;
+ case KERN_MSGMAX:
+ data = &ns->msg_ctlmax;
+ break;
+ case KERN_MSGMNI:
+ data = &ns->msg_ctlmni;
+ break;
+ case KERN_MSGMNB:
+ data = &ns->msg_ctlmnb;
+ break;
+ case KERN_SEM:
+ data = &ns->sem_ctls;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return __do_proc_dointvec(data, table, write, filp, buffer,
+ lenp, ppos, NULL, NULL);
+proc_minmax:
+ return __do_proc_doulongvec_minmax(data, table, write, filp, buffer,
+ lenp, ppos, 1l, 1l);
+}
+#endif
+
+static int proc_do_cad_pid(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ struct pid *new_pid;
+ pid_t tmp;
+ int r;
+
+ tmp = pid_nr(cad_pid);
+
+ r = __do_proc_dointvec(&tmp, table, write, filp, buffer,
+ lenp, ppos, NULL, NULL);
+ if (r || !write)
+ return r;
+
+ new_pid = find_get_pid(tmp);
+ if (!new_pid)
+ return -ESRCH;
+
+ put_pid(xchg(&cad_pid, new_pid));
+ return 0;
+}
+
#else /* CONFIG_PROC_FS */
int proc_dostring(ctl_table *table, int write, struct file *filp,
@@ -2275,12 +2459,20 @@
return -ENOSYS;
}
-static int proc_doutsstring(ctl_table *table, int write, struct file *filp,
- void __user *buffer, size_t *lenp, loff_t *ppos)
+static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
{
return -ENOSYS;
}
+#ifdef CONFIG_SYSVIPC
+static int proc_do_ipc_string(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ return -ENOSYS;
+}
+#endif
+
int proc_dointvec(ctl_table *table, int write, struct file *filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
diff --git a/kernel/utsname.c b/kernel/utsname.c
new file mode 100644
index 0000000..c859164
--- /dev/null
+++ b/kernel/utsname.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2004 IBM Corporation
+ *
+ * Author: Serge Hallyn <serue@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+
+#include <linux/module.h>
+#include <linux/uts.h>
+#include <linux/utsname.h>
+#include <linux/version.h>
+
+/*
+ * Clone a new ns copying an original utsname, setting refcount to 1
+ * @old_ns: namespace to clone
+ * Return NULL on error (failure to kmalloc), new ns otherwise
+ */
+static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
+{
+ struct uts_namespace *ns;
+
+ ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
+ if (ns) {
+ memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+ kref_init(&ns->kref);
+ }
+ return ns;
+}
+
+/*
+ * unshare the current process' utsname namespace.
+ * called only in sys_unshare()
+ */
+int unshare_utsname(unsigned long unshare_flags, struct uts_namespace **new_uts)
+{
+ if (unshare_flags & CLONE_NEWUTS) {
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ *new_uts = clone_uts_ns(current->nsproxy->uts_ns);
+ if (!*new_uts)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/*
+ * Copy task tsk's utsname namespace, or clone it if flags
+ * specifies CLONE_NEWUTS. In latter case, changes to the
+ * utsname of this process won't be seen by parent, and vice
+ * versa.
+ */
+int copy_utsname(int flags, struct task_struct *tsk)
+{
+ struct uts_namespace *old_ns = tsk->nsproxy->uts_ns;
+ struct uts_namespace *new_ns;
+ int err = 0;
+
+ if (!old_ns)
+ return 0;
+
+ get_uts_ns(old_ns);
+
+ if (!(flags & CLONE_NEWUTS))
+ return 0;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ err = -EPERM;
+ goto out;
+ }
+
+ new_ns = clone_uts_ns(old_ns);
+ if (!new_ns) {
+ err = -ENOMEM;
+ goto out;
+ }
+ tsk->nsproxy->uts_ns = new_ns;
+
+out:
+ put_uts_ns(old_ns);
+ return err;
+}
+
+void free_uts_ns(struct kref *kref)
+{
+ struct uts_namespace *ns;
+
+ ns = container_of(kref, struct uts_namespace, kref);
+ kfree(ns);
+}
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index f9ae75c..756a908 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -384,3 +384,17 @@
at boot time (you probably don't).
Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure.
+
+config LKDTM
+ tristate "Linux Kernel Dump Test Tool Module"
+ depends on KPROBES
+ default n
+ help
+ This module enables testing of the different dumping mechanisms by
+ inducing system failures at predefined crash points.
+ If you don't need it: say N
+ Choose M here to compile this code as a module. The module will be
+ called lkdtm.
+
+ Documentation on how to use the module can be found in
+ drivers/misc/lkdtm.c
diff --git a/lib/Makefile b/lib/Makefile
index ddf3e67..b036175 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -2,7 +2,7 @@
# Makefile for some libs needed in the kernel.
#
-lib-y := errno.o ctype.o string.o vsprintf.o cmdline.o \
+lib-y := ctype.o string.o vsprintf.o cmdline.o \
bust_spinlocks.o rbtree.o radix-tree.o dump_stack.o \
idr.o div64.o int_sqrt.o bitmap.o extable.o prio_tree.o \
sha1.o
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 3a67dc5..7a2a73f 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -43,3 +43,19 @@
return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);
+
+#if MAX_NUMNODES > 1
+/*
+ * Find the highest possible node id.
+ */
+int highest_possible_node_id(void)
+{
+ unsigned int node;
+ unsigned int highest = 0;
+
+ for_each_node_mask(node, node_possible_map)
+ highest = node;
+ return highest;
+}
+EXPORT_SYMBOL(highest_possible_node_id);
+#endif
diff --git a/lib/errno.c b/lib/errno.c
deleted file mode 100644
index 41cb9d7..0000000
--- a/lib/errno.c
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * linux/lib/errno.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-int errno;
diff --git a/lib/genalloc.c b/lib/genalloc.c
index 71338b4..75ae68c 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -14,11 +14,13 @@
#include <linux/genalloc.h>
-/*
- * Create a new special memory pool.
- *
+/**
+ * gen_pool_create - create a new special memory pool
* @min_alloc_order: log base 2 of number of bytes each bitmap bit represents
* @nid: node id of the node the pool structure should be allocated on, or -1
+ *
+ * Create a new special memory pool that can be used to manage special purpose
+ * memory not managed by the regular kmalloc/kfree interface.
*/
struct gen_pool *gen_pool_create(int min_alloc_order, int nid)
{
@@ -34,15 +36,15 @@
}
EXPORT_SYMBOL(gen_pool_create);
-
-/*
- * Add a new chunk of memory to the specified pool.
- *
+/**
+ * gen_pool_add - add a new chunk of special memory to the pool
* @pool: pool to add new memory chunk to
* @addr: starting address of memory chunk to add to pool
* @size: size in bytes of the memory chunk to add to pool
* @nid: node id of the node the chunk structure and bitmap should be
* allocated on, or -1
+ *
+ * Add a new chunk of special memory to the specified pool.
*/
int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size,
int nid)
@@ -69,13 +71,44 @@
}
EXPORT_SYMBOL(gen_pool_add);
-
-/*
- * Allocate the requested number of bytes from the specified pool.
- * Uses a first-fit algorithm.
+/**
+ * gen_pool_destroy - destroy a special memory pool
+ * @pool: pool to destroy
*
+ * Destroy the specified special memory pool. Verifies that there are no
+ * outstanding allocations.
+ */
+void gen_pool_destroy(struct gen_pool *pool)
+{
+ struct list_head *_chunk, *_next_chunk;
+ struct gen_pool_chunk *chunk;
+ int order = pool->min_alloc_order;
+ int bit, end_bit;
+
+
+ write_lock(&pool->lock);
+ list_for_each_safe(_chunk, _next_chunk, &pool->chunks) {
+ chunk = list_entry(_chunk, struct gen_pool_chunk, next_chunk);
+ list_del(&chunk->next_chunk);
+
+ end_bit = (chunk->end_addr - chunk->start_addr) >> order;
+ bit = find_next_bit(chunk->bits, end_bit, 0);
+ BUG_ON(bit < end_bit);
+
+ kfree(chunk);
+ }
+ kfree(pool);
+ return;
+}
+EXPORT_SYMBOL(gen_pool_destroy);
+
+/**
+ * gen_pool_alloc - allocate special memory from the pool
* @pool: pool to allocate from
* @size: number of bytes to allocate from the pool
+ *
+ * Allocate the requested number of bytes from the specified pool.
+ * Uses a first-fit algorithm.
*/
unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
{
@@ -127,13 +160,13 @@
}
EXPORT_SYMBOL(gen_pool_alloc);
-
-/*
- * Free the specified memory back to the specified pool.
- *
+/**
+ * gen_pool_free - free allocated special memory back to the pool
* @pool: pool to free to
* @addr: starting address of memory to free back to pool
* @size: size in bytes of memory to free
+ *
+ * Free previously allocated special memory back to the specified pool.
*/
void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size)
{
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index 26f3227..1958ad1 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -1011,7 +1011,7 @@
/* ---- TTY structure ---- */
-static struct tty_operations rfcomm_ops = {
+static const struct tty_operations rfcomm_ops = {
.open = rfcomm_tty_open,
.close = rfcomm_tty_close,
.write = rfcomm_tty_write,
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 1fbb384..f8ce847 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -366,7 +366,7 @@
*/
if (!ic_host_name_set)
- sprintf(system_utsname.nodename, "%u.%u.%u.%u", NIPQUAD(ic_myaddr));
+ sprintf(init_utsname()->nodename, "%u.%u.%u.%u", NIPQUAD(ic_myaddr));
if (root_server_addr == INADDR_NONE)
root_server_addr = ic_servaddr;
@@ -805,7 +805,7 @@
}
break;
case 12: /* Host name */
- ic_bootp_string(system_utsname.nodename, ext+1, *ext, __NEW_UTS_LEN);
+ ic_bootp_string(utsname()->nodename, ext+1, *ext, __NEW_UTS_LEN);
ic_host_name_set = 1;
break;
case 15: /* Domain name (DNS) */
@@ -816,7 +816,7 @@
ic_bootp_string(root_server_path, ext+1, *ext, sizeof(root_server_path));
break;
case 40: /* NIS Domain name (_not_ DNS) */
- ic_bootp_string(system_utsname.domainname, ext+1, *ext, __NEW_UTS_LEN);
+ ic_bootp_string(utsname()->domainname, ext+1, *ext, __NEW_UTS_LEN);
break;
}
}
@@ -1368,7 +1368,7 @@
printk(", mask=%u.%u.%u.%u", NIPQUAD(ic_netmask));
printk(", gw=%u.%u.%u.%u", NIPQUAD(ic_gateway));
printk(",\n host=%s, domain=%s, nis-domain=%s",
- system_utsname.nodename, ic_domain, system_utsname.domainname);
+ utsname()->nodename, ic_domain, utsname()->domainname);
printk(",\n bootserver=%u.%u.%u.%u", NIPQUAD(ic_servaddr));
printk(", rootserver=%u.%u.%u.%u", NIPQUAD(root_server_addr));
printk(", rootpath=%s", root_server_path);
@@ -1478,11 +1478,11 @@
case 4:
if ((dp = strchr(ip, '.'))) {
*dp++ = '\0';
- strlcpy(system_utsname.domainname, dp,
- sizeof(system_utsname.domainname));
+ strlcpy(utsname()->domainname, dp,
+ sizeof(utsname()->domainname));
}
- strlcpy(system_utsname.nodename, ip,
- sizeof(system_utsname.nodename));
+ strlcpy(utsname()->nodename, ip,
+ sizeof(utsname()->nodename));
ic_host_name_set = 1;
break;
case 5:
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index dab37d2..4be336f 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -99,8 +99,10 @@
}
static struct jprobe tcp_send_probe = {
- .kp = { .addr = (kprobe_opcode_t *) &tcp_sendmsg, },
- .entry = (kprobe_opcode_t *) &jtcp_sendmsg,
+ .kp = {
+ .symbol_name = "tcp_sendmsg",
+ },
+ .entry = JPROBE_ENTRY(jtcp_sendmsg),
};
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 3bcdb46..d50a020 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -79,7 +79,7 @@
hashbin_t *ircomm_tty = NULL;
-static struct tty_operations ops = {
+static const struct tty_operations ops = {
.open = ircomm_tty_open,
.close = ircomm_tty_close,
.write = ircomm_tty_write,
diff --git a/net/socket.c b/net/socket.c
index 01918f7..6c9b9b3 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -825,7 +825,7 @@
break;
case FIOGETOWN:
case SIOCGPGRP:
- err = put_user(sock->file->f_owner.pid,
+ err = put_user(f_getown(sock->file),
(int __user *)argp);
break;
case SIOCGIFBR:
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 124ff0c..78696f2 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -161,10 +161,10 @@
}
/* save the nodename */
- clnt->cl_nodelen = strlen(system_utsname.nodename);
+ clnt->cl_nodelen = strlen(utsname()->nodename);
if (clnt->cl_nodelen > UNX_MAXNODENAME)
clnt->cl_nodelen = UNX_MAXNODENAME;
- memcpy(clnt->cl_nodename, system_utsname.nodename, clnt->cl_nodelen);
+ memcpy(clnt->cl_nodename, utsname()->nodename, clnt->cl_nodelen);
return clnt;
out_no_auth:
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 26c0531..192dff5 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -70,6 +70,8 @@
/* RPC server stuff */
EXPORT_SYMBOL(svc_create);
EXPORT_SYMBOL(svc_create_thread);
+EXPORT_SYMBOL(svc_create_pooled);
+EXPORT_SYMBOL(svc_set_num_threads);
EXPORT_SYMBOL(svc_exit_thread);
EXPORT_SYMBOL(svc_destroy);
EXPORT_SYMBOL(svc_drop);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 44b8d9d..a99e67b 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -4,6 +4,10 @@
* High-level RPC service routines
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ *
+ * Multiple threads pools and NUMAisation
+ * Copyright (c) 2006 Silicon Graphics, Inc.
+ * by Greg Banks <gnb@melbourne.sgi.com>
*/
#include <linux/linkage.h>
@@ -12,6 +16,8 @@
#include <linux/net.h>
#include <linux/in.h>
#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/xdr.h>
@@ -23,14 +29,252 @@
#define RPC_PARANOIA 1
/*
+ * Mode for mapping cpus to pools.
+ */
+enum {
+ SVC_POOL_NONE = -1, /* uninitialised, choose one of the others */
+ SVC_POOL_GLOBAL, /* no mapping, just a single global pool
+ * (legacy & UP mode) */
+ SVC_POOL_PERCPU, /* one pool per cpu */
+ SVC_POOL_PERNODE /* one pool per numa node */
+};
+
+/*
+ * Structure for mapping cpus to pools and vice versa.
+ * Setup once during sunrpc initialisation.
+ */
+static struct svc_pool_map {
+ int mode; /* Note: int not enum to avoid
+ * warnings about "enumeration value
+ * not handled in switch" */
+ unsigned int npools;
+ unsigned int *pool_to; /* maps pool id to cpu or node */
+ unsigned int *to_pool; /* maps cpu or node to pool id */
+} svc_pool_map = {
+ .mode = SVC_POOL_NONE
+};
+
+
+/*
+ * Detect best pool mapping mode heuristically,
+ * according to the machine's topology.
+ */
+static int
+svc_pool_map_choose_mode(void)
+{
+ unsigned int node;
+
+ if (num_online_nodes() > 1) {
+ /*
+ * Actually have multiple NUMA nodes,
+ * so split pools on NUMA node boundaries
+ */
+ return SVC_POOL_PERNODE;
+ }
+
+ node = any_online_node(node_online_map);
+ if (nr_cpus_node(node) > 2) {
+ /*
+ * Non-trivial SMP, or CONFIG_NUMA on
+ * non-NUMA hardware, e.g. with a generic
+ * x86_64 kernel on Xeons. In this case we
+ * want to divide the pools on cpu boundaries.
+ */
+ return SVC_POOL_PERCPU;
+ }
+
+ /* default: one global pool */
+ return SVC_POOL_GLOBAL;
+}
+
+/*
+ * Allocate the to_pool[] and pool_to[] arrays.
+ * Returns 0 on success or an errno.
+ */
+static int
+svc_pool_map_alloc_arrays(struct svc_pool_map *m, unsigned int maxpools)
+{
+ m->to_pool = kcalloc(maxpools, sizeof(unsigned int), GFP_KERNEL);
+ if (!m->to_pool)
+ goto fail;
+ m->pool_to = kcalloc(maxpools, sizeof(unsigned int), GFP_KERNEL);
+ if (!m->pool_to)
+ goto fail_free;
+
+ return 0;
+
+fail_free:
+ kfree(m->to_pool);
+fail:
+ return -ENOMEM;
+}
+
+/*
+ * Initialise the pool map for SVC_POOL_PERCPU mode.
+ * Returns number of pools or <0 on error.
+ */
+static int
+svc_pool_map_init_percpu(struct svc_pool_map *m)
+{
+ unsigned int maxpools = highest_possible_processor_id()+1;
+ unsigned int pidx = 0;
+ unsigned int cpu;
+ int err;
+
+ err = svc_pool_map_alloc_arrays(m, maxpools);
+ if (err)
+ return err;
+
+ for_each_online_cpu(cpu) {
+ BUG_ON(pidx > maxpools);
+ m->to_pool[cpu] = pidx;
+ m->pool_to[pidx] = cpu;
+ pidx++;
+ }
+ /* cpus brought online later all get mapped to pool0, sorry */
+
+ return pidx;
+};
+
+
+/*
+ * Initialise the pool map for SVC_POOL_PERNODE mode.
+ * Returns number of pools or <0 on error.
+ */
+static int
+svc_pool_map_init_pernode(struct svc_pool_map *m)
+{
+ unsigned int maxpools = highest_possible_node_id()+1;
+ unsigned int pidx = 0;
+ unsigned int node;
+ int err;
+
+ err = svc_pool_map_alloc_arrays(m, maxpools);
+ if (err)
+ return err;
+
+ for_each_node_with_cpus(node) {
+ /* some architectures (e.g. SN2) have cpuless nodes */
+ BUG_ON(pidx > maxpools);
+ m->to_pool[node] = pidx;
+ m->pool_to[pidx] = node;
+ pidx++;
+ }
+ /* nodes brought online later all get mapped to pool0, sorry */
+
+ return pidx;
+}
+
+
+/*
+ * Build the global map of cpus to pools and vice versa.
+ */
+static unsigned int
+svc_pool_map_init(void)
+{
+ struct svc_pool_map *m = &svc_pool_map;
+ int npools = -1;
+
+ if (m->mode != SVC_POOL_NONE)
+ return m->npools;
+
+ m->mode = svc_pool_map_choose_mode();
+
+ switch (m->mode) {
+ case SVC_POOL_PERCPU:
+ npools = svc_pool_map_init_percpu(m);
+ break;
+ case SVC_POOL_PERNODE:
+ npools = svc_pool_map_init_pernode(m);
+ break;
+ }
+
+ if (npools < 0) {
+ /* default, or memory allocation failure */
+ npools = 1;
+ m->mode = SVC_POOL_GLOBAL;
+ }
+ m->npools = npools;
+
+ return m->npools;
+}
+
+/*
+ * Set the current thread's cpus_allowed mask so that it
+ * will only run on cpus in the given pool.
+ *
+ * Returns 1 and fills in oldmask iff a cpumask was applied.
+ */
+static inline int
+svc_pool_map_set_cpumask(unsigned int pidx, cpumask_t *oldmask)
+{
+ struct svc_pool_map *m = &svc_pool_map;
+ unsigned int node; /* or cpu */
+
+ /*
+ * The caller checks for sv_nrpools > 1, which
+ * implies that we've been initialized and the
+ * map mode is not NONE.
+ */
+ BUG_ON(m->mode == SVC_POOL_NONE);
+
+ switch (m->mode)
+ {
+ default:
+ return 0;
+ case SVC_POOL_PERCPU:
+ node = m->pool_to[pidx];
+ *oldmask = current->cpus_allowed;
+ set_cpus_allowed(current, cpumask_of_cpu(node));
+ return 1;
+ case SVC_POOL_PERNODE:
+ node = m->pool_to[pidx];
+ *oldmask = current->cpus_allowed;
+ set_cpus_allowed(current, node_to_cpumask(node));
+ return 1;
+ }
+}
+
+/*
+ * Use the mapping mode to choose a pool for a given CPU.
+ * Used when enqueueing an incoming RPC. Always returns
+ * a non-NULL pool pointer.
+ */
+struct svc_pool *
+svc_pool_for_cpu(struct svc_serv *serv, int cpu)
+{
+ struct svc_pool_map *m = &svc_pool_map;
+ unsigned int pidx = 0;
+
+ /*
+ * SVC_POOL_NONE happens in a pure client when
+ * lockd is brought up, so silently treat it the
+ * same as SVC_POOL_GLOBAL.
+ */
+
+ switch (m->mode) {
+ case SVC_POOL_PERCPU:
+ pidx = m->to_pool[cpu];
+ break;
+ case SVC_POOL_PERNODE:
+ pidx = m->to_pool[cpu_to_node(cpu)];
+ break;
+ }
+ return &serv->sv_pools[pidx % serv->sv_nrpools];
+}
+
+
+/*
* Create an RPC service
*/
-struct svc_serv *
-svc_create(struct svc_program *prog, unsigned int bufsize)
+static struct svc_serv *
+__svc_create(struct svc_program *prog, unsigned int bufsize, int npools,
+ void (*shutdown)(struct svc_serv *serv))
{
struct svc_serv *serv;
int vers;
unsigned int xdrsize;
+ unsigned int i;
if (!(serv = kzalloc(sizeof(*serv), GFP_KERNEL)))
return NULL;
@@ -39,6 +283,7 @@
serv->sv_nrthreads = 1;
serv->sv_stats = prog->pg_stats;
serv->sv_bufsz = bufsize? bufsize : 4096;
+ serv->sv_shutdown = shutdown;
xdrsize = 0;
while (prog) {
prog->pg_lovers = prog->pg_nvers-1;
@@ -53,20 +298,68 @@
prog = prog->pg_next;
}
serv->sv_xdrsize = xdrsize;
- INIT_LIST_HEAD(&serv->sv_threads);
- INIT_LIST_HEAD(&serv->sv_sockets);
INIT_LIST_HEAD(&serv->sv_tempsocks);
INIT_LIST_HEAD(&serv->sv_permsocks);
+ init_timer(&serv->sv_temptimer);
spin_lock_init(&serv->sv_lock);
+ serv->sv_nrpools = npools;
+ serv->sv_pools =
+ kcalloc(sizeof(struct svc_pool), serv->sv_nrpools,
+ GFP_KERNEL);
+ if (!serv->sv_pools) {
+ kfree(serv);
+ return NULL;
+ }
+
+ for (i = 0; i < serv->sv_nrpools; i++) {
+ struct svc_pool *pool = &serv->sv_pools[i];
+
+ dprintk("initialising pool %u for %s\n",
+ i, serv->sv_name);
+
+ pool->sp_id = i;
+ INIT_LIST_HEAD(&pool->sp_threads);
+ INIT_LIST_HEAD(&pool->sp_sockets);
+ INIT_LIST_HEAD(&pool->sp_all_threads);
+ spin_lock_init(&pool->sp_lock);
+ }
+
+
/* Remove any stale portmap registrations */
svc_register(serv, 0, 0);
return serv;
}
+struct svc_serv *
+svc_create(struct svc_program *prog, unsigned int bufsize,
+ void (*shutdown)(struct svc_serv *serv))
+{
+ return __svc_create(prog, bufsize, /*npools*/1, shutdown);
+}
+
+struct svc_serv *
+svc_create_pooled(struct svc_program *prog, unsigned int bufsize,
+ void (*shutdown)(struct svc_serv *serv),
+ svc_thread_fn func, int sig, struct module *mod)
+{
+ struct svc_serv *serv;
+ unsigned int npools = svc_pool_map_init();
+
+ serv = __svc_create(prog, bufsize, npools, shutdown);
+
+ if (serv != NULL) {
+ serv->sv_function = func;
+ serv->sv_kill_signal = sig;
+ serv->sv_module = mod;
+ }
+
+ return serv;
+}
+
/*
- * Destroy an RPC service
+ * Destroy an RPC service. Should be called with the BKL held
*/
void
svc_destroy(struct svc_serv *serv)
@@ -85,12 +378,17 @@
} else
printk("svc_destroy: no threads for serv=%p!\n", serv);
+ del_timer_sync(&serv->sv_temptimer);
+
while (!list_empty(&serv->sv_tempsocks)) {
svsk = list_entry(serv->sv_tempsocks.next,
struct svc_sock,
sk_list);
svc_delete_socket(svsk);
}
+ if (serv->sv_shutdown)
+ serv->sv_shutdown(serv);
+
while (!list_empty(&serv->sv_permsocks)) {
svsk = list_entry(serv->sv_permsocks.next,
struct svc_sock,
@@ -102,6 +400,7 @@
/* Unregister service with the portmapper */
svc_register(serv, 0, 0);
+ kfree(serv->sv_pools);
kfree(serv);
}
@@ -150,13 +449,18 @@
}
/*
- * Create a server thread
+ * Create a thread in the given pool. Caller must hold BKL.
+ * On a NUMA or SMP machine, with a multi-pool serv, the thread
+ * will be restricted to run on the cpus belonging to the pool.
*/
-int
-svc_create_thread(svc_thread_fn func, struct svc_serv *serv)
+static int
+__svc_create_thread(svc_thread_fn func, struct svc_serv *serv,
+ struct svc_pool *pool)
{
struct svc_rqst *rqstp;
int error = -ENOMEM;
+ int have_oldmask = 0;
+ cpumask_t oldmask;
rqstp = kzalloc(sizeof(*rqstp), GFP_KERNEL);
if (!rqstp)
@@ -170,8 +474,21 @@
goto out_thread;
serv->sv_nrthreads++;
+ spin_lock_bh(&pool->sp_lock);
+ pool->sp_nrthreads++;
+ list_add(&rqstp->rq_all, &pool->sp_all_threads);
+ spin_unlock_bh(&pool->sp_lock);
rqstp->rq_server = serv;
+ rqstp->rq_pool = pool;
+
+ if (serv->sv_nrpools > 1)
+ have_oldmask = svc_pool_map_set_cpumask(pool->sp_id, &oldmask);
+
error = kernel_thread((int (*)(void *)) func, rqstp, 0);
+
+ if (have_oldmask)
+ set_cpus_allowed(current, oldmask);
+
if (error < 0)
goto out_thread;
svc_sock_update_bufs(serv);
@@ -185,17 +502,136 @@
}
/*
- * Destroy an RPC server thread
+ * Create a thread in the default pool. Caller must hold BKL.
+ */
+int
+svc_create_thread(svc_thread_fn func, struct svc_serv *serv)
+{
+ return __svc_create_thread(func, serv, &serv->sv_pools[0]);
+}
+
+/*
+ * Choose a pool in which to create a new thread, for svc_set_num_threads
+ */
+static inline struct svc_pool *
+choose_pool(struct svc_serv *serv, struct svc_pool *pool, unsigned int *state)
+{
+ if (pool != NULL)
+ return pool;
+
+ return &serv->sv_pools[(*state)++ % serv->sv_nrpools];
+}
+
+/*
+ * Choose a thread to kill, for svc_set_num_threads
+ */
+static inline struct task_struct *
+choose_victim(struct svc_serv *serv, struct svc_pool *pool, unsigned int *state)
+{
+ unsigned int i;
+ struct task_struct *task = NULL;
+
+ if (pool != NULL) {
+ spin_lock_bh(&pool->sp_lock);
+ } else {
+ /* choose a pool in round-robin fashion */
+ for (i = 0; i < serv->sv_nrpools; i++) {
+ pool = &serv->sv_pools[--(*state) % serv->sv_nrpools];
+ spin_lock_bh(&pool->sp_lock);
+ if (!list_empty(&pool->sp_all_threads))
+ goto found_pool;
+ spin_unlock_bh(&pool->sp_lock);
+ }
+ return NULL;
+ }
+
+found_pool:
+ if (!list_empty(&pool->sp_all_threads)) {
+ struct svc_rqst *rqstp;
+
+ /*
+ * Remove from the pool->sp_all_threads list
+ * so we don't try to kill it again.
+ */
+ rqstp = list_entry(pool->sp_all_threads.next, struct svc_rqst, rq_all);
+ list_del_init(&rqstp->rq_all);
+ task = rqstp->rq_task;
+ }
+ spin_unlock_bh(&pool->sp_lock);
+
+ return task;
+}
+
+/*
+ * Create or destroy enough new threads to make the number
+ * of threads the given number. If `pool' is non-NULL, applies
+ * only to threads in that pool, otherwise round-robins between
+ * all pools. Must be called with a svc_get() reference and
+ * the BKL held.
+ *
+ * Destroying threads relies on the service threads filling in
+ * rqstp->rq_task, which only the nfs ones do. Assumes the serv
+ * has been created using svc_create_pooled().
+ *
+ * Based on code that used to be in nfsd_svc() but tweaked
+ * to be pool-aware.
+ */
+int
+svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+ struct task_struct *victim;
+ int error = 0;
+ unsigned int state = serv->sv_nrthreads-1;
+
+ if (pool == NULL) {
+ /* The -1 assumes caller has done a svc_get() */
+ nrservs -= (serv->sv_nrthreads-1);
+ } else {
+ spin_lock_bh(&pool->sp_lock);
+ nrservs -= pool->sp_nrthreads;
+ spin_unlock_bh(&pool->sp_lock);
+ }
+
+ /* create new threads */
+ while (nrservs > 0) {
+ nrservs--;
+ __module_get(serv->sv_module);
+ error = __svc_create_thread(serv->sv_function, serv,
+ choose_pool(serv, pool, &state));
+ if (error < 0) {
+ module_put(serv->sv_module);
+ break;
+ }
+ }
+ /* destroy old threads */
+ while (nrservs < 0 &&
+ (victim = choose_victim(serv, pool, &state)) != NULL) {
+ send_sig(serv->sv_kill_signal, victim, 1);
+ nrservs++;
+ }
+
+ return error;
+}
+
+/*
+ * Called from a server thread as it's exiting. Caller must hold BKL.
*/
void
svc_exit_thread(struct svc_rqst *rqstp)
{
struct svc_serv *serv = rqstp->rq_server;
+ struct svc_pool *pool = rqstp->rq_pool;
svc_release_buffer(rqstp);
kfree(rqstp->rq_resp);
kfree(rqstp->rq_argp);
kfree(rqstp->rq_auth_data);
+
+ spin_lock_bh(&pool->sp_lock);
+ pool->sp_nrthreads--;
+ list_del(&rqstp->rq_all);
+ spin_unlock_bh(&pool->sp_lock);
+
kfree(rqstp);
/* Release the server */
@@ -248,13 +684,14 @@
* Process the RPC request.
*/
int
-svc_process(struct svc_serv *serv, struct svc_rqst *rqstp)
+svc_process(struct svc_rqst *rqstp)
{
struct svc_program *progp;
struct svc_version *versp = NULL; /* compiler food */
struct svc_procedure *procp = NULL;
struct kvec * argv = &rqstp->rq_arg.head[0];
struct kvec * resv = &rqstp->rq_res.head[0];
+ struct svc_serv *serv = rqstp->rq_server;
kxdrproc_t xdr;
__be32 *statp;
u32 dir, prog, vers, proc;
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 1020d54..40d41a2 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -348,12 +348,9 @@
struct auth_domain *auth_unix_lookup(struct in_addr addr)
{
- struct ip_map key, *ipm;
+ struct ip_map *ipm;
struct auth_domain *rv;
- strcpy(key.m_class, "nfsd");
- key.m_addr = addr;
-
ipm = ip_map_lookup("nfsd", addr);
if (!ipm)
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 5b0fe1b..cba85d1 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -31,6 +31,7 @@
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
+#include <linux/file.h>
#include <net/sock.h>
#include <net/checksum.h>
#include <net/ip.h>
@@ -45,13 +46,16 @@
/* SMP locking strategy:
*
- * svc_serv->sv_lock protects most stuff for that service.
+ * svc_pool->sp_lock protects most of the fields of that pool.
+ * svc_serv->sv_lock protects sv_tempsocks, sv_permsocks, sv_tmpcnt.
+ * when both need to be taken (rare), svc_serv->sv_lock is first.
+ * BKL protects svc_serv->sv_nrthread.
+ * svc_sock->sk_defer_lock protects the svc_sock->sk_deferred list
+ * svc_sock->sk_flags.SK_BUSY prevents a svc_sock being enqueued multiply.
*
* Some flags can be set to certain values at any time
* providing that certain rules are followed:
*
- * SK_BUSY can be set to 0 at any time.
- * svc_sock_enqueue must be called afterwards
* SK_CONN, SK_DATA, can be set or cleared at any time.
* after a set, svc_sock_enqueue must be called.
* after a clear, the socket must be read/accepted
@@ -73,23 +77,30 @@
static int svc_deferred_recv(struct svc_rqst *rqstp);
static struct cache_deferred_req *svc_defer(struct cache_req *req);
+/* apparently the "standard" is that clients close
+ * idle connections after 5 minutes, servers after
+ * 6 minutes
+ * http://www.connectathon.org/talks96/nfstcp.pdf
+ */
+static int svc_conn_age_period = 6*60;
+
/*
- * Queue up an idle server thread. Must have serv->sv_lock held.
+ * Queue up an idle server thread. Must have pool->sp_lock held.
* Note: this is really a stack rather than a queue, so that we only
- * use as many different threads as we need, and the rest don't polute
+ * use as many different threads as we need, and the rest don't pollute
* the cache.
*/
static inline void
-svc_serv_enqueue(struct svc_serv *serv, struct svc_rqst *rqstp)
+svc_thread_enqueue(struct svc_pool *pool, struct svc_rqst *rqstp)
{
- list_add(&rqstp->rq_list, &serv->sv_threads);
+ list_add(&rqstp->rq_list, &pool->sp_threads);
}
/*
- * Dequeue an nfsd thread. Must have serv->sv_lock held.
+ * Dequeue an nfsd thread. Must have pool->sp_lock held.
*/
static inline void
-svc_serv_dequeue(struct svc_serv *serv, struct svc_rqst *rqstp)
+svc_thread_dequeue(struct svc_pool *pool, struct svc_rqst *rqstp)
{
list_del(&rqstp->rq_list);
}
@@ -140,7 +151,9 @@
svc_sock_enqueue(struct svc_sock *svsk)
{
struct svc_serv *serv = svsk->sk_server;
+ struct svc_pool *pool;
struct svc_rqst *rqstp;
+ int cpu;
if (!(svsk->sk_flags &
( (1<<SK_CONN)|(1<<SK_DATA)|(1<<SK_CLOSE)|(1<<SK_DEFERRED)) ))
@@ -148,10 +161,14 @@
if (test_bit(SK_DEAD, &svsk->sk_flags))
return;
- spin_lock_bh(&serv->sv_lock);
+ cpu = get_cpu();
+ pool = svc_pool_for_cpu(svsk->sk_server, cpu);
+ put_cpu();
- if (!list_empty(&serv->sv_threads) &&
- !list_empty(&serv->sv_sockets))
+ spin_lock_bh(&pool->sp_lock);
+
+ if (!list_empty(&pool->sp_threads) &&
+ !list_empty(&pool->sp_sockets))
printk(KERN_ERR
"svc_sock_enqueue: threads and sockets both waiting??\n");
@@ -161,73 +178,79 @@
goto out_unlock;
}
- if (test_bit(SK_BUSY, &svsk->sk_flags)) {
- /* Don't enqueue socket while daemon is receiving */
+ /* Mark socket as busy. It will remain in this state until the
+ * server has processed all pending data and put the socket back
+ * on the idle list. We update SK_BUSY atomically because
+ * it also guards against trying to enqueue the svc_sock twice.
+ */
+ if (test_and_set_bit(SK_BUSY, &svsk->sk_flags)) {
+ /* Don't enqueue socket while already enqueued */
dprintk("svc: socket %p busy, not enqueued\n", svsk->sk_sk);
goto out_unlock;
}
+ BUG_ON(svsk->sk_pool != NULL);
+ svsk->sk_pool = pool;
set_bit(SOCK_NOSPACE, &svsk->sk_sock->flags);
- if (((svsk->sk_reserved + serv->sv_bufsz)*2
+ if (((atomic_read(&svsk->sk_reserved) + serv->sv_bufsz)*2
> svc_sock_wspace(svsk))
&& !test_bit(SK_CLOSE, &svsk->sk_flags)
&& !test_bit(SK_CONN, &svsk->sk_flags)) {
/* Don't enqueue while not enough space for reply */
dprintk("svc: socket %p no space, %d*2 > %ld, not enqueued\n",
- svsk->sk_sk, svsk->sk_reserved+serv->sv_bufsz,
+ svsk->sk_sk, atomic_read(&svsk->sk_reserved)+serv->sv_bufsz,
svc_sock_wspace(svsk));
+ svsk->sk_pool = NULL;
+ clear_bit(SK_BUSY, &svsk->sk_flags);
goto out_unlock;
}
clear_bit(SOCK_NOSPACE, &svsk->sk_sock->flags);
- /* Mark socket as busy. It will remain in this state until the
- * server has processed all pending data and put the socket back
- * on the idle list.
- */
- set_bit(SK_BUSY, &svsk->sk_flags);
- if (!list_empty(&serv->sv_threads)) {
- rqstp = list_entry(serv->sv_threads.next,
+ if (!list_empty(&pool->sp_threads)) {
+ rqstp = list_entry(pool->sp_threads.next,
struct svc_rqst,
rq_list);
dprintk("svc: socket %p served by daemon %p\n",
svsk->sk_sk, rqstp);
- svc_serv_dequeue(serv, rqstp);
+ svc_thread_dequeue(pool, rqstp);
if (rqstp->rq_sock)
printk(KERN_ERR
"svc_sock_enqueue: server %p, rq_sock=%p!\n",
rqstp, rqstp->rq_sock);
rqstp->rq_sock = svsk;
- svsk->sk_inuse++;
+ atomic_inc(&svsk->sk_inuse);
rqstp->rq_reserved = serv->sv_bufsz;
- svsk->sk_reserved += rqstp->rq_reserved;
+ atomic_add(rqstp->rq_reserved, &svsk->sk_reserved);
+ BUG_ON(svsk->sk_pool != pool);
wake_up(&rqstp->rq_wait);
} else {
dprintk("svc: socket %p put into queue\n", svsk->sk_sk);
- list_add_tail(&svsk->sk_ready, &serv->sv_sockets);
+ list_add_tail(&svsk->sk_ready, &pool->sp_sockets);
+ BUG_ON(svsk->sk_pool != pool);
}
out_unlock:
- spin_unlock_bh(&serv->sv_lock);
+ spin_unlock_bh(&pool->sp_lock);
}
/*
- * Dequeue the first socket. Must be called with the serv->sv_lock held.
+ * Dequeue the first socket. Must be called with the pool->sp_lock held.
*/
static inline struct svc_sock *
-svc_sock_dequeue(struct svc_serv *serv)
+svc_sock_dequeue(struct svc_pool *pool)
{
struct svc_sock *svsk;
- if (list_empty(&serv->sv_sockets))
+ if (list_empty(&pool->sp_sockets))
return NULL;
- svsk = list_entry(serv->sv_sockets.next,
+ svsk = list_entry(pool->sp_sockets.next,
struct svc_sock, sk_ready);
list_del_init(&svsk->sk_ready);
dprintk("svc: socket %p dequeued, inuse=%d\n",
- svsk->sk_sk, svsk->sk_inuse);
+ svsk->sk_sk, atomic_read(&svsk->sk_inuse));
return svsk;
}
@@ -241,6 +264,7 @@
static inline void
svc_sock_received(struct svc_sock *svsk)
{
+ svsk->sk_pool = NULL;
clear_bit(SK_BUSY, &svsk->sk_flags);
svc_sock_enqueue(svsk);
}
@@ -262,10 +286,8 @@
if (space < rqstp->rq_reserved) {
struct svc_sock *svsk = rqstp->rq_sock;
- spin_lock_bh(&svsk->sk_server->sv_lock);
- svsk->sk_reserved -= (rqstp->rq_reserved - space);
+ atomic_sub((rqstp->rq_reserved - space), &svsk->sk_reserved);
rqstp->rq_reserved = space;
- spin_unlock_bh(&svsk->sk_server->sv_lock);
svc_sock_enqueue(svsk);
}
@@ -277,17 +299,11 @@
static inline void
svc_sock_put(struct svc_sock *svsk)
{
- struct svc_serv *serv = svsk->sk_server;
-
- spin_lock_bh(&serv->sv_lock);
- if (!--(svsk->sk_inuse) && test_bit(SK_DEAD, &svsk->sk_flags)) {
- spin_unlock_bh(&serv->sv_lock);
+ if (atomic_dec_and_test(&svsk->sk_inuse) && test_bit(SK_DEAD, &svsk->sk_flags)) {
dprintk("svc: releasing dead socket\n");
sock_release(svsk->sk_sock);
kfree(svsk);
}
- else
- spin_unlock_bh(&serv->sv_lock);
}
static void
@@ -321,25 +337,33 @@
/*
* External function to wake up a server waiting for data
+ * This really only makes sense for services like lockd
+ * which have exactly one thread anyway.
*/
void
svc_wake_up(struct svc_serv *serv)
{
struct svc_rqst *rqstp;
+ unsigned int i;
+ struct svc_pool *pool;
- spin_lock_bh(&serv->sv_lock);
- if (!list_empty(&serv->sv_threads)) {
- rqstp = list_entry(serv->sv_threads.next,
- struct svc_rqst,
- rq_list);
- dprintk("svc: daemon %p woken up.\n", rqstp);
- /*
- svc_serv_dequeue(serv, rqstp);
- rqstp->rq_sock = NULL;
- */
- wake_up(&rqstp->rq_wait);
+ for (i = 0; i < serv->sv_nrpools; i++) {
+ pool = &serv->sv_pools[i];
+
+ spin_lock_bh(&pool->sp_lock);
+ if (!list_empty(&pool->sp_threads)) {
+ rqstp = list_entry(pool->sp_threads.next,
+ struct svc_rqst,
+ rq_list);
+ dprintk("svc: daemon %p woken up.\n", rqstp);
+ /*
+ svc_thread_dequeue(pool, rqstp);
+ rqstp->rq_sock = NULL;
+ */
+ wake_up(&rqstp->rq_wait);
+ }
+ spin_unlock_bh(&pool->sp_lock);
}
- spin_unlock_bh(&serv->sv_lock);
}
/*
@@ -429,6 +453,51 @@
}
/*
+ * Report socket names for nfsdfs
+ */
+static int one_sock_name(char *buf, struct svc_sock *svsk)
+{
+ int len;
+
+ switch(svsk->sk_sk->sk_family) {
+ case AF_INET:
+ len = sprintf(buf, "ipv4 %s %u.%u.%u.%u %d\n",
+ svsk->sk_sk->sk_protocol==IPPROTO_UDP?
+ "udp" : "tcp",
+ NIPQUAD(inet_sk(svsk->sk_sk)->rcv_saddr),
+ inet_sk(svsk->sk_sk)->num);
+ break;
+ default:
+ len = sprintf(buf, "*unknown-%d*\n",
+ svsk->sk_sk->sk_family);
+ }
+ return len;
+}
+
+int
+svc_sock_names(char *buf, struct svc_serv *serv, char *toclose)
+{
+ struct svc_sock *svsk, *closesk = NULL;
+ int len = 0;
+
+ if (!serv)
+ return 0;
+ spin_lock(&serv->sv_lock);
+ list_for_each_entry(svsk, &serv->sv_permsocks, sk_list) {
+ int onelen = one_sock_name(buf+len, svsk);
+ if (toclose && strcmp(toclose, buf+len) == 0)
+ closesk = svsk;
+ else
+ len += onelen;
+ }
+ spin_unlock(&serv->sv_lock);
+ if (closesk)
+ svc_delete_socket(closesk);
+ return len;
+}
+EXPORT_SYMBOL(svc_sock_names);
+
+/*
* Check input queue length
*/
static int
@@ -557,7 +626,10 @@
/* udp sockets need large rcvbuf as all pending
* requests are still in that buffer. sndbuf must
* also be large enough that there is enough space
- * for one reply per thread.
+ * for one reply per thread. We count all threads
+ * rather than threads in a particular pool, which
+ * provides an upper bound on the number of threads
+ * which will access the socket.
*/
svc_sock_setbufsize(svsk->sk_sock,
(serv->sv_nrthreads+3) * serv->sv_bufsz,
@@ -844,7 +916,7 @@
struct svc_sock,
sk_list);
set_bit(SK_CLOSE, &svsk->sk_flags);
- svsk->sk_inuse ++;
+ atomic_inc(&svsk->sk_inuse);
}
spin_unlock_bh(&serv->sv_lock);
@@ -902,6 +974,11 @@
/* sndbuf needs to have room for one request
* per thread, otherwise we can stall even when the
* network isn't a bottleneck.
+ *
+ * We count all threads rather than threads in a
+ * particular pool, which provides an upper bound
+ * on the number of threads which will access the socket.
+ *
* rcvbuf just needs to be able to hold a few requests.
* Normally they will be removed from the queue
* as soon a a complete request arrives.
@@ -1117,12 +1194,16 @@
}
/*
- * Receive the next request on any socket.
+ * Receive the next request on any socket. This code is carefully
+ * organised not to touch any cachelines in the shared svc_serv
+ * structure, only cachelines in the local svc_pool.
*/
int
-svc_recv(struct svc_serv *serv, struct svc_rqst *rqstp, long timeout)
+svc_recv(struct svc_rqst *rqstp, long timeout)
{
struct svc_sock *svsk =NULL;
+ struct svc_serv *serv = rqstp->rq_server;
+ struct svc_pool *pool = rqstp->rq_pool;
int len;
int pages;
struct xdr_buf *arg;
@@ -1172,32 +1253,15 @@
if (signalled())
return -EINTR;
- spin_lock_bh(&serv->sv_lock);
- if (!list_empty(&serv->sv_tempsocks)) {
- svsk = list_entry(serv->sv_tempsocks.next,
- struct svc_sock, sk_list);
- /* apparently the "standard" is that clients close
- * idle connections after 5 minutes, servers after
- * 6 minutes
- * http://www.connectathon.org/talks96/nfstcp.pdf
- */
- if (get_seconds() - svsk->sk_lastrecv < 6*60
- || test_bit(SK_BUSY, &svsk->sk_flags))
- svsk = NULL;
- }
- if (svsk) {
- set_bit(SK_BUSY, &svsk->sk_flags);
- set_bit(SK_CLOSE, &svsk->sk_flags);
+ spin_lock_bh(&pool->sp_lock);
+ if ((svsk = svc_sock_dequeue(pool)) != NULL) {
rqstp->rq_sock = svsk;
- svsk->sk_inuse++;
- } else if ((svsk = svc_sock_dequeue(serv)) != NULL) {
- rqstp->rq_sock = svsk;
- svsk->sk_inuse++;
+ atomic_inc(&svsk->sk_inuse);
rqstp->rq_reserved = serv->sv_bufsz;
- svsk->sk_reserved += rqstp->rq_reserved;
+ atomic_add(rqstp->rq_reserved, &svsk->sk_reserved);
} else {
/* No data pending. Go to sleep */
- svc_serv_enqueue(serv, rqstp);
+ svc_thread_enqueue(pool, rqstp);
/*
* We have to be able to interrupt this wait
@@ -1205,26 +1269,26 @@
*/
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&rqstp->rq_wait, &wait);
- spin_unlock_bh(&serv->sv_lock);
+ spin_unlock_bh(&pool->sp_lock);
schedule_timeout(timeout);
try_to_freeze();
- spin_lock_bh(&serv->sv_lock);
+ spin_lock_bh(&pool->sp_lock);
remove_wait_queue(&rqstp->rq_wait, &wait);
if (!(svsk = rqstp->rq_sock)) {
- svc_serv_dequeue(serv, rqstp);
- spin_unlock_bh(&serv->sv_lock);
+ svc_thread_dequeue(pool, rqstp);
+ spin_unlock_bh(&pool->sp_lock);
dprintk("svc: server %p, no data yet\n", rqstp);
return signalled()? -EINTR : -EAGAIN;
}
}
- spin_unlock_bh(&serv->sv_lock);
+ spin_unlock_bh(&pool->sp_lock);
- dprintk("svc: server %p, socket %p, inuse=%d\n",
- rqstp, svsk, svsk->sk_inuse);
+ dprintk("svc: server %p, pool %u, socket %p, inuse=%d\n",
+ rqstp, pool->sp_id, svsk, atomic_read(&svsk->sk_inuse));
len = svsk->sk_recvfrom(rqstp);
dprintk("svc: got len=%d\n", len);
@@ -1235,13 +1299,7 @@
return -EAGAIN;
}
svsk->sk_lastrecv = get_seconds();
- if (test_bit(SK_TEMP, &svsk->sk_flags)) {
- /* push active sockets to end of list */
- spin_lock_bh(&serv->sv_lock);
- if (!list_empty(&svsk->sk_list))
- list_move_tail(&svsk->sk_list, &serv->sv_tempsocks);
- spin_unlock_bh(&serv->sv_lock);
- }
+ clear_bit(SK_OLD, &svsk->sk_flags);
rqstp->rq_secure = ntohs(rqstp->rq_addr.sin_port) < 1024;
rqstp->rq_chandle.defer = svc_defer;
@@ -1301,6 +1359,58 @@
}
/*
+ * Timer function to close old temporary sockets, using
+ * a mark-and-sweep algorithm.
+ */
+static void
+svc_age_temp_sockets(unsigned long closure)
+{
+ struct svc_serv *serv = (struct svc_serv *)closure;
+ struct svc_sock *svsk;
+ struct list_head *le, *next;
+ LIST_HEAD(to_be_aged);
+
+ dprintk("svc_age_temp_sockets\n");
+
+ if (!spin_trylock_bh(&serv->sv_lock)) {
+ /* busy, try again 1 sec later */
+ dprintk("svc_age_temp_sockets: busy\n");
+ mod_timer(&serv->sv_temptimer, jiffies + HZ);
+ return;
+ }
+
+ list_for_each_safe(le, next, &serv->sv_tempsocks) {
+ svsk = list_entry(le, struct svc_sock, sk_list);
+
+ if (!test_and_set_bit(SK_OLD, &svsk->sk_flags))
+ continue;
+ if (atomic_read(&svsk->sk_inuse) || test_bit(SK_BUSY, &svsk->sk_flags))
+ continue;
+ atomic_inc(&svsk->sk_inuse);
+ list_move(le, &to_be_aged);
+ set_bit(SK_CLOSE, &svsk->sk_flags);
+ set_bit(SK_DETACHED, &svsk->sk_flags);
+ }
+ spin_unlock_bh(&serv->sv_lock);
+
+ while (!list_empty(&to_be_aged)) {
+ le = to_be_aged.next;
+ /* fiddling the sk_list node is safe 'cos we're SK_DETACHED */
+ list_del_init(le);
+ svsk = list_entry(le, struct svc_sock, sk_list);
+
+ dprintk("queuing svsk %p for closing, %lu seconds old\n",
+ svsk, get_seconds() - svsk->sk_lastrecv);
+
+ /* a thread will dequeue and close it soon */
+ svc_sock_enqueue(svsk);
+ svc_sock_put(svsk);
+ }
+
+ mod_timer(&serv->sv_temptimer, jiffies + svc_conn_age_period * HZ);
+}
+
+/*
* Initialize socket for RPC use and create svc_sock struct
* XXX: May want to setsockopt SO_SNDBUF and SO_RCVBUF.
*/
@@ -1337,7 +1447,9 @@
svsk->sk_odata = inet->sk_data_ready;
svsk->sk_owspace = inet->sk_write_space;
svsk->sk_server = serv;
+ atomic_set(&svsk->sk_inuse, 0);
svsk->sk_lastrecv = get_seconds();
+ spin_lock_init(&svsk->sk_defer_lock);
INIT_LIST_HEAD(&svsk->sk_deferred);
INIT_LIST_HEAD(&svsk->sk_ready);
mutex_init(&svsk->sk_mutex);
@@ -1353,6 +1465,13 @@
set_bit(SK_TEMP, &svsk->sk_flags);
list_add(&svsk->sk_list, &serv->sv_tempsocks);
serv->sv_tmpcnt++;
+ if (serv->sv_temptimer.function == NULL) {
+ /* setup timer to age temp sockets */
+ setup_timer(&serv->sv_temptimer, svc_age_temp_sockets,
+ (unsigned long)serv);
+ mod_timer(&serv->sv_temptimer,
+ jiffies + svc_conn_age_period * HZ);
+ }
} else {
clear_bit(SK_TEMP, &svsk->sk_flags);
list_add(&svsk->sk_list, &serv->sv_permsocks);
@@ -1367,6 +1486,38 @@
return svsk;
}
+int svc_addsock(struct svc_serv *serv,
+ int fd,
+ char *name_return,
+ int *proto)
+{
+ int err = 0;
+ struct socket *so = sockfd_lookup(fd, &err);
+ struct svc_sock *svsk = NULL;
+
+ if (!so)
+ return err;
+ if (so->sk->sk_family != AF_INET)
+ err = -EAFNOSUPPORT;
+ else if (so->sk->sk_protocol != IPPROTO_TCP &&
+ so->sk->sk_protocol != IPPROTO_UDP)
+ err = -EPROTONOSUPPORT;
+ else if (so->state > SS_UNCONNECTED)
+ err = -EISCONN;
+ else {
+ svsk = svc_setup_socket(serv, so, &err, 1);
+ if (svsk)
+ err = 0;
+ }
+ if (err) {
+ sockfd_put(so);
+ return err;
+ }
+ if (proto) *proto = so->sk->sk_protocol;
+ return one_sock_name(name_return, svsk);
+}
+EXPORT_SYMBOL_GPL(svc_addsock);
+
/*
* Create socket for RPC service.
*/
@@ -1434,15 +1585,25 @@
spin_lock_bh(&serv->sv_lock);
- list_del_init(&svsk->sk_list);
- list_del_init(&svsk->sk_ready);
+ if (!test_and_set_bit(SK_DETACHED, &svsk->sk_flags))
+ list_del_init(&svsk->sk_list);
+ /*
+ * We used to delete the svc_sock from whichever list
+ * it's sk_ready node was on, but we don't actually
+ * need to. This is because the only time we're called
+ * while still attached to a queue, the queue itself
+ * is about to be destroyed (in svc_destroy).
+ */
if (!test_and_set_bit(SK_DEAD, &svsk->sk_flags))
if (test_bit(SK_TEMP, &svsk->sk_flags))
serv->sv_tmpcnt--;
- if (!svsk->sk_inuse) {
+ if (!atomic_read(&svsk->sk_inuse)) {
spin_unlock_bh(&serv->sv_lock);
- sock_release(svsk->sk_sock);
+ if (svsk->sk_sock->file)
+ sockfd_put(svsk->sk_sock);
+ else
+ sock_release(svsk->sk_sock);
kfree(svsk);
} else {
spin_unlock_bh(&serv->sv_lock);
@@ -1473,7 +1634,6 @@
static void svc_revisit(struct cache_deferred_req *dreq, int too_many)
{
struct svc_deferred_req *dr = container_of(dreq, struct svc_deferred_req, handle);
- struct svc_serv *serv = dreq->owner;
struct svc_sock *svsk;
if (too_many) {
@@ -1484,9 +1644,9 @@
dprintk("revisit queued\n");
svsk = dr->svsk;
dr->svsk = NULL;
- spin_lock_bh(&serv->sv_lock);
+ spin_lock_bh(&svsk->sk_defer_lock);
list_add(&dr->handle.recent, &svsk->sk_deferred);
- spin_unlock_bh(&serv->sv_lock);
+ spin_unlock_bh(&svsk->sk_defer_lock);
set_bit(SK_DEFERRED, &svsk->sk_flags);
svc_sock_enqueue(svsk);
svc_sock_put(svsk);
@@ -1518,10 +1678,8 @@
dr->argslen = rqstp->rq_arg.len >> 2;
memcpy(dr->args, rqstp->rq_arg.head[0].iov_base-skip, dr->argslen<<2);
}
- spin_lock_bh(&rqstp->rq_server->sv_lock);
- rqstp->rq_sock->sk_inuse++;
+ atomic_inc(&rqstp->rq_sock->sk_inuse);
dr->svsk = rqstp->rq_sock;
- spin_unlock_bh(&rqstp->rq_server->sv_lock);
dr->handle.revisit = svc_revisit;
return &dr->handle;
@@ -1548,11 +1706,10 @@
static struct svc_deferred_req *svc_deferred_dequeue(struct svc_sock *svsk)
{
struct svc_deferred_req *dr = NULL;
- struct svc_serv *serv = svsk->sk_server;
if (!test_bit(SK_DEFERRED, &svsk->sk_flags))
return NULL;
- spin_lock_bh(&serv->sv_lock);
+ spin_lock_bh(&svsk->sk_defer_lock);
clear_bit(SK_DEFERRED, &svsk->sk_flags);
if (!list_empty(&svsk->sk_deferred)) {
dr = list_entry(svsk->sk_deferred.next,
@@ -1561,6 +1718,6 @@
list_del_init(&dr->handle.recent);
set_bit(SK_DEFERRED, &svsk->sk_flags);
}
- spin_unlock_bh(&serv->sv_lock);
+ spin_unlock_bh(&svsk->sk_defer_lock);
return dr;
}
diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c
index 3ebc349..a444bfe 100644
--- a/sound/core/info_oss.c
+++ b/sound/core/info_oss.c
@@ -96,11 +96,11 @@
{
snd_iprintf(buffer, "Sound Driver:3.8.1a-980706 (ALSA v" CONFIG_SND_VERSION " emulation code)\n");
snd_iprintf(buffer, "Kernel: %s %s %s %s %s\n",
- system_utsname.sysname,
- system_utsname.nodename,
- system_utsname.release,
- system_utsname.version,
- system_utsname.machine);
+ init_utsname()->sysname,
+ init_utsname()->nodename,
+ init_utsname()->release,
+ init_utsname()->version,
+ init_utsname()->machine);
snd_iprintf(buffer, "Config options: 0\n");
snd_iprintf(buffer, "\nInstalled drivers: \n");
snd_iprintf(buffer, "Type 10: ALSA emulation\n");