Merge branch 'master' of /usr/src/ntfs-2.6/
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fc99075..7b7382d 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1008,7 +1008,9 @@
noexec=on: enable non-executable mappings (default)
noexec=off: disable nn-executable mappings
- nofxsr [BUGS=IA-32]
+ nofxsr [BUGS=IA-32] Disables x86 floating point extended
+ register save and restore. The kernel will only save
+ legacy floating-point registers on task switch.
nohlt [BUGS=ARM]
@@ -1053,6 +1055,8 @@
nosbagart [IA-64]
+ nosep [BUGS=IA-32] Disables x86 SYSENTER/SYSEXIT support.
+
nosmp [SMP] Tells an SMP kernel to act as a UP kernel.
nosync [HW,M68K] Disables sync negotiation for all devices.
@@ -1122,6 +1126,11 @@
pas16= [HW,SCSI]
See header of drivers/scsi/pas16.c.
+ pause_on_oops=
+ Halt all CPUs after the first oops has been printed for
+ the specified number of seconds. This is to be used if
+ your oopses keep scrolling off the screen.
+
pcbit= [HW,ISDN]
pcd. [PARIDE]
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index b28b7f0..d7814a11 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -17,6 +17,11 @@
* but it will probably only crash.
*
* (*) suspend/resume support is needed to make it safe.
+ *
+ * If you have any filesystems on USB devices mounted before suspend,
+ * they won't be accessible after resume and you may lose data, as though
+ * you have unplugged the USB devices with mounted filesystems on them
+ * (see the FAQ below for details).
You need to append resume=/dev/your_swap_partition to kernel command
line. Then you suspend by
@@ -27,19 +32,18 @@
echo platform > /sys/power/disk; echo disk > /sys/power/state
+. If you have SATA disks, you'll need recent kernels with SATA suspend
+support. For suspend and resume to work, make sure your disk drivers
+are built into kernel -- not modules. [There's way to make
+suspend/resume with modular disk drivers, see FAQ, but you probably
+should not do that.]
+
If you want to limit the suspend image size to N bytes, do
echo N > /sys/power/image_size
before suspend (it is limited to 500 MB by default).
-Encrypted suspend image:
-------------------------
-If you want to store your suspend image encrypted with a temporary
-key to prevent data gathering after resume you must compile
-crypto and the aes algorithm into the kernel - modules won't work
-as they cannot be loaded at resume time.
-
Article about goals and implementation of Software Suspend for Linux
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -333,4 +337,37 @@
usually does the trick. Then it is good idea to try with latest
vanilla kernel.
+Q: How can distributions ship a swsusp-supporting kernel with modular
+disk drivers (especially SATA)?
+
+A: Well, it can be done, load the drivers, then do echo into
+/sys/power/disk/resume file from initrd. Be sure not to mount
+anything, not even read-only mount, or you are going to lose your
+data.
+
+Q: How do I make suspend more verbose?
+
+A: If you want to see any non-error kernel messages on the virtual
+terminal the kernel switches to during suspend, you have to set the
+kernel console loglevel to at least 5, for example by doing
+
+ echo 5 > /proc/sys/kernel/printk
+
+Q: Is this true that if I have a mounted filesystem on a USB device and
+I suspend to disk, I can lose data unless the filesystem has been mounted
+with "sync"?
+
+A: That's right. It depends on your hardware, and it could be true even for
+suspend-to-RAM. In fact, even with "-o sync" you can lose data if your
+programs have information in buffers they haven't written out to disk.
+
+If you're lucky, your hardware will support low-power modes for USB
+controllers while the system is asleep. Lots of hardware doesn't,
+however. Shutting off the power to a USB controller is equivalent to
+unplugging all the attached devices.
+
+Remember that it's always a bad idea to unplug a disk drive containing a
+mounted filesystem. With USB that's true even when your system is asleep!
+The safest thing is to unmount all USB-based filesystems before suspending
+and remount them after resuming.
diff --git a/Documentation/power/userland-swsusp.txt b/Documentation/power/userland-swsusp.txt
new file mode 100644
index 0000000..9405822
--- /dev/null
+++ b/Documentation/power/userland-swsusp.txt
@@ -0,0 +1,149 @@
+Documentation for userland software suspend interface
+ (C) 2006 Rafael J. Wysocki <rjw@sisk.pl>
+
+First, the warnings at the beginning of swsusp.txt still apply.
+
+Second, you should read the FAQ in swsusp.txt _now_ if you have not
+done it already.
+
+Now, to use the userland interface for software suspend you need special
+utilities that will read/write the system memory snapshot from/to the
+kernel. Such utilities are available, for example, from
+<http://www.sisk.pl/kernel/utilities/suspend>. You may want to have
+a look at them if you are going to develop your own suspend/resume
+utilities.
+
+The interface consists of a character device providing the open(),
+release(), read(), and write() operations as well as several ioctl()
+commands defined in kernel/power/power.h. The major and minor
+numbers of the device are, respectively, 10 and 231, and they can
+be read from /sys/class/misc/snapshot/dev.
+
+The device can be open either for reading or for writing. If open for
+reading, it is considered to be in the suspend mode. Otherwise it is
+assumed to be in the resume mode. The device cannot be open for reading
+and writing. It is also impossible to have the device open more than once
+at a time.
+
+The ioctl() commands recognized by the device are:
+
+SNAPSHOT_FREEZE - freeze user space processes (the current process is
+ not frozen); this is required for SNAPSHOT_ATOMIC_SNAPSHOT
+ and SNAPSHOT_ATOMIC_RESTORE to succeed
+
+SNAPSHOT_UNFREEZE - thaw user space processes frozen by SNAPSHOT_FREEZE
+
+SNAPSHOT_ATOMIC_SNAPSHOT - create a snapshot of the system memory; the
+ last argument of ioctl() should be a pointer to an int variable,
+ the value of which will indicate whether the call returned after
+ creating the snapshot (1) or after restoring the system memory state
+ from it (0) (after resume the system finds itself finishing the
+ SNAPSHOT_ATOMIC_SNAPSHOT ioctl() again); after the snapshot
+ has been created the read() operation can be used to transfer
+ it out of the kernel
+
+SNAPSHOT_ATOMIC_RESTORE - restore the system memory state from the
+ uploaded snapshot image; before calling it you should transfer
+ the system memory snapshot back to the kernel using the write()
+ operation; this call will not succeed if the snapshot
+ image is not available to the kernel
+
+SNAPSHOT_FREE - free memory allocated for the snapshot image
+
+SNAPSHOT_SET_IMAGE_SIZE - set the preferred maximum size of the image
+ (the kernel will do its best to ensure the image size will not exceed
+ this number, but if it turns out to be impossible, the kernel will
+ create the smallest image possible)
+
+SNAPSHOT_AVAIL_SWAP - return the amount of available swap in bytes (the last
+ argument should be a pointer to an unsigned int variable that will
+ contain the result if the call is successful).
+
+SNAPSHOT_GET_SWAP_PAGE - allocate a swap page from the resume partition
+ (the last argument should be a pointer to a loff_t variable that
+ will contain the swap page offset if the call is successful)
+
+SNAPSHOT_FREE_SWAP_PAGES - free all swap pages allocated with
+ SNAPSHOT_GET_SWAP_PAGE
+
+SNAPSHOT_SET_SWAP_FILE - set the resume partition (the last ioctl() argument
+ should specify the device's major and minor numbers in the old
+ two-byte format, as returned by the stat() function in the .st_rdev
+ member of the stat structure); it is recommended to always use this
+ call, because the code to set the resume partition could be removed from
+ future kernels
+
+The device's read() operation can be used to transfer the snapshot image from
+the kernel. It has the following limitations:
+- you cannot read() more than one virtual memory page at a time
+- read()s accross page boundaries are impossible (ie. if ypu read() 1/2 of
+ a page in the previous call, you will only be able to read()
+ _at_ _most_ 1/2 of the page in the next call)
+
+The device's write() operation is used for uploading the system memory snapshot
+into the kernel. It has the same limitations as the read() operation.
+
+The release() operation frees all memory allocated for the snapshot image
+and all swap pages allocated with SNAPSHOT_GET_SWAP_PAGE (if any).
+Thus it is not necessary to use either SNAPSHOT_FREE or
+SNAPSHOT_FREE_SWAP_PAGES before closing the device (in fact it will also
+unfreeze user space processes frozen by SNAPSHOT_UNFREEZE if they are
+still frozen when the device is being closed).
+
+Currently it is assumed that the userland utilities reading/writing the
+snapshot image from/to the kernel will use a swap parition, called the resume
+partition, as storage space. However, this is not really required, as they
+can use, for example, a special (blank) suspend partition or a file on a partition
+that is unmounted before SNAPSHOT_ATOMIC_SNAPSHOT and mounted afterwards.
+
+These utilities SHOULD NOT make any assumptions regarding the ordering of
+data within the snapshot image, except for the image header that MAY be
+assumed to start with an swsusp_info structure, as specified in
+kernel/power/power.h. This structure MAY be used by the userland utilities
+to obtain some information about the snapshot image, such as the size
+of the snapshot image, including the metadata and the header itself,
+contained in the .size member of swsusp_info.
+
+The snapshot image MUST be written to the kernel unaltered (ie. all of the image
+data, metadata and header MUST be written in _exactly_ the same amount, form
+and order in which they have been read). Otherwise, the behavior of the
+resumed system may be totally unpredictable.
+
+While executing SNAPSHOT_ATOMIC_RESTORE the kernel checks if the
+structure of the snapshot image is consistent with the information stored
+in the image header. If any inconsistencies are detected,
+SNAPSHOT_ATOMIC_RESTORE will not succeed. Still, this is not a fool-proof
+mechanism and the userland utilities using the interface SHOULD use additional
+means, such as checksums, to ensure the integrity of the snapshot image.
+
+The suspending and resuming utilities MUST lock themselves in memory,
+preferrably using mlockall(), before calling SNAPSHOT_FREEZE.
+
+The suspending utility MUST check the value stored by SNAPSHOT_ATOMIC_SNAPSHOT
+in the memory location pointed to by the last argument of ioctl() and proceed
+in accordance with it:
+1. If the value is 1 (ie. the system memory snapshot has just been
+ created and the system is ready for saving it):
+ (a) The suspending utility MUST NOT close the snapshot device
+ _unless_ the whole suspend procedure is to be cancelled, in
+ which case, if the snapshot image has already been saved, the
+ suspending utility SHOULD destroy it, preferrably by zapping
+ its header. If the suspend is not to be cancelled, the
+ system MUST be powered off or rebooted after the snapshot
+ image has been saved.
+ (b) The suspending utility SHOULD NOT attempt to perform any
+ file system operations (including reads) on the file systems
+ that were mounted before SNAPSHOT_ATOMIC_SNAPSHOT has been
+ called. However, it MAY mount a file system that was not
+ mounted at that time and perform some operations on it (eg.
+ use it for saving the image).
+2. If the value is 0 (ie. the system state has just been restored from
+ the snapshot image), the suspending utility MUST close the snapshot
+ device. Afterwards it will be treated as a regular userland process,
+ so it need not exit.
+
+The resuming utility SHOULD NOT attempt to mount any file systems that could
+be mounted before suspend and SHOULD NOT attempt to perform any operations
+involving such file systems.
+
+For details, please refer to the source code.
diff --git a/Documentation/power/video.txt b/Documentation/power/video.txt
index 912bed8..d18a57d 100644
--- a/Documentation/power/video.txt
+++ b/Documentation/power/video.txt
@@ -1,7 +1,7 @@
Video issues with S3 resume
~~~~~~~~~~~~~~~~~~~~~~~~~~~
- 2003-2005, Pavel Machek
+ 2003-2006, Pavel Machek
During S3 resume, hardware needs to be reinitialized. For most
devices, this is easy, and kernel driver knows how to do
@@ -15,6 +15,27 @@
problem for S1 standby, because hardware should retain its state over
that.
+We either have to run video BIOS during early resume, or interpret it
+using vbetool later, or maybe nothing is neccessary on particular
+system because video state is preserved. Unfortunately different
+methods work on different systems, and no known method suits all of
+them.
+
+Userland application called s2ram has been developed; it contains long
+whitelist of systems, and automatically selects working method for a
+given system. It can be downloaded from CVS at
+www.sf.net/projects/suspend . If you get a system that is not in the
+whitelist, please try to find a working solution, and submit whitelist
+entry so that work does not need to be repeated.
+
+Currently, VBE_SAVE method (6 below) works on most
+systems. Unfortunately, vbetool only runs after userland is resumed,
+so it makes debugging of early resume problems
+hard/impossible. Methods that do not rely on userland are preferable.
+
+Details
+~~~~~~~
+
There are a few types of systems where video works after S3 resume:
(1) systems where video state is preserved over S3.
@@ -104,6 +125,7 @@
HP Pavilion ZD7000 vbetool post needed, need open-source nv driver for X
HP Omnibook XE3 athlon version none (1)
HP Omnibook XE3GC none (1), video is S3 Savage/IX-MV
+HP Omnibook 5150 none (1), (S1 also works OK)
IBM TP T20, model 2647-44G none (1), video is S3 Inc. 86C270-294 Savage/IX-MV, vesafb gets "interesting" but X work.
IBM TP A31 / Type 2652-M5G s3_mode (3) [works ok with BIOS 1.04 2002-08-23, but not at all with BIOS 1.11 2004-11-05 :-(]
IBM TP R32 / Type 2658-MMG none (1)
@@ -120,18 +142,24 @@
IBM TP X20 ??? (*)
IBM TP X30 s3_bios (2)
IBM TP X31 / Type 2672-XXH none (1), use radeontool (http://fdd.com/software/radeon/) to turn off backlight.
-IBM TP X32 none (1), but backlight is on and video is trashed after long suspend
+IBM TP X32 none (1), but backlight is on and video is trashed after long suspend. s3_bios,s3_mode (4) works too. Perhaps that gets better results?
IBM Thinkpad X40 Type 2371-7JG s3_bios,s3_mode (4)
+IBM TP 600e none(1), but a switch to console and back to X is needed
Medion MD4220 ??? (*)
Samsung P35 vbetool needed (6)
-Sharp PC-AR10 (ATI rage) none (1)
+Sharp PC-AR10 (ATI rage) none (1), backlight does not switch off
Sony Vaio PCG-C1VRX/K s3_bios (2)
Sony Vaio PCG-F403 ??? (*)
+Sony Vaio PCG-GRT995MP none (1), works with 'nv' X driver
+Sony Vaio PCG-GR7/K none (1), but needs radeonfb, use radeontool (http://fdd.com/software/radeon/) to turn off backlight.
Sony Vaio PCG-N505SN ??? (*)
Sony Vaio vgn-s260 X or boot-radeon can init it (5)
+Sony Vaio vgn-S580BH vga=normal, but suspend from X. Console will be blank unless you return to X.
+Sony Vaio vgn-FS115B s3_bios (2),s3_mode (4)
Toshiba Libretto L5 none (1)
-Toshiba Satellite 4030CDT s3_mode (3)
-Toshiba Satellite 4080XCDT s3_mode (3)
+Toshiba Portege 3020CT s3_mode (3)
+Toshiba Satellite 4030CDT s3_mode (3) (S1 also works OK)
+Toshiba Satellite 4080XCDT s3_mode (3) (S1 also works OK)
Toshiba Satellite 4090XCDT ??? (*)
Toshiba Satellite P10-554 s3_bios,s3_mode (4)(****)
Toshiba M30 (2) xor X with nvidia driver using internal AGP
@@ -151,39 +179,3 @@
(***) To be tested with a newer kernel.
(****) Not with SMP kernel, UP only.
-
-VBEtool details
-~~~~~~~~~~~~~~~
-(with thanks to Carl-Daniel Hailfinger)
-
-First, boot into X and run the following script ONCE:
-#!/bin/bash
-statedir=/root/s3/state
-mkdir -p $statedir
-chvt 2
-sleep 1
-vbetool vbestate save >$statedir/vbe
-
-
-To suspend and resume properly, call the following script as root:
-#!/bin/bash
-statedir=/root/s3/state
-curcons=`fgconsole`
-fuser /dev/tty$curcons 2>/dev/null|xargs ps -o comm= -p|grep -q X && chvt 2
-cat /dev/vcsa >$statedir/vcsa
-sync
-echo 3 >/proc/acpi/sleep
-sync
-vbetool post
-vbetool vbestate restore <$statedir/vbe
-cat $statedir/vcsa >/dev/vcsa
-rckbd restart
-chvt $[curcons%6+1]
-chvt $curcons
-
-
-Unless you change your graphics card or other hardware configuration,
-the state once saved will be OK for every resume afterwards.
-NOTE: The "rckbd restart" command may be different for your
-distribution. Simply replace it with the command you would use to
-set the fonts on screen.
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 30deaf1..b504def 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -52,9 +52,8 @@
if (i == 0) {
seq_printf(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
@@ -67,9 +66,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
seq_printf(p, " %s", action->name);
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c
index 27ab4c3..11fa326 100644
--- a/arch/frv/kernel/irq.c
+++ b/arch/frv/kernel/irq.c
@@ -75,9 +75,8 @@
switch (i) {
case 0:
seq_printf(p, " ");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
break;
@@ -100,9 +99,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i - 1]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i - 1]);
#endif
level = group->sources[ix]->level - frv_irq_levels;
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 5b1a7d4..bfea1be 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -80,6 +80,7 @@
config X86_NUMAQ
bool "NUMAQ (IBM/Sequent)"
+ select SMP
select NUMA
help
This option is used for getting Linux to run on a (IBM/Sequent) NUMA
@@ -400,6 +401,7 @@
config NOHIGHMEM
bool "off"
+ depends on !X86_NUMAQ
---help---
Linux can use up to 64 Gigabytes of physical memory on x86 systems.
However, the address space of 32-bit x86 processors is only 4
@@ -436,6 +438,7 @@
config HIGHMEM4G
bool "4GB"
+ depends on !X86_NUMAQ
help
Select this if you have a 32-bit processor and between 1 and 4
gigabytes of physical RAM.
@@ -503,10 +506,6 @@
default n if X86_PC
default y if (X86_NUMAQ || X86_SUMMIT)
-# Need comments to help the hapless user trying to turn on NUMA support
-comment "NUMA (NUMA-Q) requires SMP, 64GB highmem support"
- depends on X86_NUMAQ && (!HIGHMEM64G || !SMP)
-
comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
@@ -660,13 +659,18 @@
default y
config REGPARM
- bool "Use register arguments (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- default n
+ bool "Use register arguments"
+ default y
help
- Compile the kernel with -mregparm=3. This uses a different ABI
- and passes the first three arguments of a function call in registers.
- This will probably break binary only modules.
+ Compile the kernel with -mregparm=3. This instructs gcc to use
+ a more efficient function call ABI which passes the first three
+ arguments of a function call via registers, which results in denser
+ and faster code.
+
+ If this option is disabled, then the default ABI of passing
+ arguments via the stack is used.
+
+ If unsure, say Y.
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug
index bf32ecc..00108ba 100644
--- a/arch/i386/Kconfig.debug
+++ b/arch/i386/Kconfig.debug
@@ -31,6 +31,15 @@
This option will slow down process creation somewhat.
+config STACK_BACKTRACE_COLS
+ int "Stack backtraces per line" if DEBUG_KERNEL
+ range 1 3
+ default 2
+ help
+ Selects how many stack backtrace entries per line to display.
+
+ This can save screen space when displaying traces.
+
comment "Page alloc debug is incompatible with Software Suspend on i386"
depends on DEBUG_KERNEL && SOFTWARE_SUSPEND
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 65656c0..5b9ed21 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -7,7 +7,7 @@
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
- quirks.o i8237.o topology.o
+ quirks.o i8237.o topology.o alternative.o
obj-y += cpu/
obj-y += timers/
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
new file mode 100644
index 0000000..5cbd6f9
--- /dev/null
+++ b/arch/i386/kernel/alternative.c
@@ -0,0 +1,321 @@
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <asm/alternative.h>
+#include <asm/sections.h>
+
+#define DEBUG 0
+#if DEBUG
+# define DPRINTK(fmt, args...) printk(fmt, args)
+#else
+# define DPRINTK(fmt, args...)
+#endif
+
+/* Use inline assembly to define this because the nops are defined
+ as inline assembly strings in the include files and we cannot
+ get them easily into strings. */
+asm("\t.data\nintelnops: "
+ GENERIC_NOP1 GENERIC_NOP2 GENERIC_NOP3 GENERIC_NOP4 GENERIC_NOP5 GENERIC_NOP6
+ GENERIC_NOP7 GENERIC_NOP8);
+asm("\t.data\nk8nops: "
+ K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6
+ K8_NOP7 K8_NOP8);
+asm("\t.data\nk7nops: "
+ K7_NOP1 K7_NOP2 K7_NOP3 K7_NOP4 K7_NOP5 K7_NOP6
+ K7_NOP7 K7_NOP8);
+
+extern unsigned char intelnops[], k8nops[], k7nops[];
+static unsigned char *intel_nops[ASM_NOP_MAX+1] = {
+ NULL,
+ intelnops,
+ intelnops + 1,
+ intelnops + 1 + 2,
+ intelnops + 1 + 2 + 3,
+ intelnops + 1 + 2 + 3 + 4,
+ intelnops + 1 + 2 + 3 + 4 + 5,
+ intelnops + 1 + 2 + 3 + 4 + 5 + 6,
+ intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static unsigned char *k8_nops[ASM_NOP_MAX+1] = {
+ NULL,
+ k8nops,
+ k8nops + 1,
+ k8nops + 1 + 2,
+ k8nops + 1 + 2 + 3,
+ k8nops + 1 + 2 + 3 + 4,
+ k8nops + 1 + 2 + 3 + 4 + 5,
+ k8nops + 1 + 2 + 3 + 4 + 5 + 6,
+ k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static unsigned char *k7_nops[ASM_NOP_MAX+1] = {
+ NULL,
+ k7nops,
+ k7nops + 1,
+ k7nops + 1 + 2,
+ k7nops + 1 + 2 + 3,
+ k7nops + 1 + 2 + 3 + 4,
+ k7nops + 1 + 2 + 3 + 4 + 5,
+ k7nops + 1 + 2 + 3 + 4 + 5 + 6,
+ k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
+};
+static struct nop {
+ int cpuid;
+ unsigned char **noptable;
+} noptypes[] = {
+ { X86_FEATURE_K8, k8_nops },
+ { X86_FEATURE_K7, k7_nops },
+ { -1, NULL }
+};
+
+
+extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
+extern struct alt_instr __smp_alt_instructions[], __smp_alt_instructions_end[];
+extern u8 *__smp_locks[], *__smp_locks_end[];
+
+extern u8 __smp_alt_begin[], __smp_alt_end[];
+
+
+static unsigned char** find_nop_table(void)
+{
+ unsigned char **noptable = intel_nops;
+ int i;
+
+ for (i = 0; noptypes[i].cpuid >= 0; i++) {
+ if (boot_cpu_has(noptypes[i].cpuid)) {
+ noptable = noptypes[i].noptable;
+ break;
+ }
+ }
+ return noptable;
+}
+
+/* Replace instructions with better alternatives for this CPU type.
+ This runs before SMP is initialized to avoid SMP problems with
+ self modifying code. This implies that assymetric systems where
+ APs have less capabilities than the boot processor are not handled.
+ Tough. Make sure you disable such features by hand. */
+
+void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
+{
+ unsigned char **noptable = find_nop_table();
+ struct alt_instr *a;
+ int diff, i, k;
+
+ DPRINTK("%s: alt table %p -> %p\n", __FUNCTION__, start, end);
+ for (a = start; a < end; a++) {
+ BUG_ON(a->replacementlen > a->instrlen);
+ if (!boot_cpu_has(a->cpuid))
+ continue;
+ memcpy(a->instr, a->replacement, a->replacementlen);
+ diff = a->instrlen - a->replacementlen;
+ /* Pad the rest with nops */
+ for (i = a->replacementlen; diff > 0; diff -= k, i += k) {
+ k = diff;
+ if (k > ASM_NOP_MAX)
+ k = ASM_NOP_MAX;
+ memcpy(a->instr + i, noptable[k], k);
+ }
+ }
+}
+
+static void alternatives_smp_save(struct alt_instr *start, struct alt_instr *end)
+{
+ struct alt_instr *a;
+
+ DPRINTK("%s: alt table %p-%p\n", __FUNCTION__, start, end);
+ for (a = start; a < end; a++) {
+ memcpy(a->replacement + a->replacementlen,
+ a->instr,
+ a->instrlen);
+ }
+}
+
+static void alternatives_smp_apply(struct alt_instr *start, struct alt_instr *end)
+{
+ struct alt_instr *a;
+
+ for (a = start; a < end; a++) {
+ memcpy(a->instr,
+ a->replacement + a->replacementlen,
+ a->instrlen);
+ }
+}
+
+static void alternatives_smp_lock(u8 **start, u8 **end, u8 *text, u8 *text_end)
+{
+ u8 **ptr;
+
+ for (ptr = start; ptr < end; ptr++) {
+ if (*ptr < text)
+ continue;
+ if (*ptr > text_end)
+ continue;
+ **ptr = 0xf0; /* lock prefix */
+ };
+}
+
+static void alternatives_smp_unlock(u8 **start, u8 **end, u8 *text, u8 *text_end)
+{
+ unsigned char **noptable = find_nop_table();
+ u8 **ptr;
+
+ for (ptr = start; ptr < end; ptr++) {
+ if (*ptr < text)
+ continue;
+ if (*ptr > text_end)
+ continue;
+ **ptr = noptable[1][0];
+ };
+}
+
+struct smp_alt_module {
+ /* what is this ??? */
+ struct module *mod;
+ char *name;
+
+ /* ptrs to lock prefixes */
+ u8 **locks;
+ u8 **locks_end;
+
+ /* .text segment, needed to avoid patching init code ;) */
+ u8 *text;
+ u8 *text_end;
+
+ struct list_head next;
+};
+static LIST_HEAD(smp_alt_modules);
+static DEFINE_SPINLOCK(smp_alt);
+
+static int smp_alt_once = 0;
+static int __init bootonly(char *str)
+{
+ smp_alt_once = 1;
+ return 1;
+}
+__setup("smp-alt-boot", bootonly);
+
+void alternatives_smp_module_add(struct module *mod, char *name,
+ void *locks, void *locks_end,
+ void *text, void *text_end)
+{
+ struct smp_alt_module *smp;
+ unsigned long flags;
+
+ if (smp_alt_once) {
+ if (boot_cpu_has(X86_FEATURE_UP))
+ alternatives_smp_unlock(locks, locks_end,
+ text, text_end);
+ return;
+ }
+
+ smp = kzalloc(sizeof(*smp), GFP_KERNEL);
+ if (NULL == smp)
+ return; /* we'll run the (safe but slow) SMP code then ... */
+
+ smp->mod = mod;
+ smp->name = name;
+ smp->locks = locks;
+ smp->locks_end = locks_end;
+ smp->text = text;
+ smp->text_end = text_end;
+ DPRINTK("%s: locks %p -> %p, text %p -> %p, name %s\n",
+ __FUNCTION__, smp->locks, smp->locks_end,
+ smp->text, smp->text_end, smp->name);
+
+ spin_lock_irqsave(&smp_alt, flags);
+ list_add_tail(&smp->next, &smp_alt_modules);
+ if (boot_cpu_has(X86_FEATURE_UP))
+ alternatives_smp_unlock(smp->locks, smp->locks_end,
+ smp->text, smp->text_end);
+ spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void alternatives_smp_module_del(struct module *mod)
+{
+ struct smp_alt_module *item;
+ unsigned long flags;
+
+ if (smp_alt_once)
+ return;
+
+ spin_lock_irqsave(&smp_alt, flags);
+ list_for_each_entry(item, &smp_alt_modules, next) {
+ if (mod != item->mod)
+ continue;
+ list_del(&item->next);
+ spin_unlock_irqrestore(&smp_alt, flags);
+ DPRINTK("%s: %s\n", __FUNCTION__, item->name);
+ kfree(item);
+ return;
+ }
+ spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void alternatives_smp_switch(int smp)
+{
+ struct smp_alt_module *mod;
+ unsigned long flags;
+
+ if (smp_alt_once)
+ return;
+ BUG_ON(!smp && (num_online_cpus() > 1));
+
+ spin_lock_irqsave(&smp_alt, flags);
+ if (smp) {
+ printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
+ clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+ clear_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+ alternatives_smp_apply(__smp_alt_instructions,
+ __smp_alt_instructions_end);
+ list_for_each_entry(mod, &smp_alt_modules, next)
+ alternatives_smp_lock(mod->locks, mod->locks_end,
+ mod->text, mod->text_end);
+ } else {
+ printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+ set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+ set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+ apply_alternatives(__smp_alt_instructions,
+ __smp_alt_instructions_end);
+ list_for_each_entry(mod, &smp_alt_modules, next)
+ alternatives_smp_unlock(mod->locks, mod->locks_end,
+ mod->text, mod->text_end);
+ }
+ spin_unlock_irqrestore(&smp_alt, flags);
+}
+
+void __init alternative_instructions(void)
+{
+ apply_alternatives(__alt_instructions, __alt_instructions_end);
+
+ /* switch to patch-once-at-boottime-only mode and free the
+ * tables in case we know the number of CPUs will never ever
+ * change */
+#ifdef CONFIG_HOTPLUG_CPU
+ if (num_possible_cpus() < 2)
+ smp_alt_once = 1;
+#else
+ smp_alt_once = 1;
+#endif
+
+ if (smp_alt_once) {
+ if (1 == num_possible_cpus()) {
+ printk(KERN_INFO "SMP alternatives: switching to UP code\n");
+ set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
+ set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
+ apply_alternatives(__smp_alt_instructions,
+ __smp_alt_instructions_end);
+ alternatives_smp_unlock(__smp_locks, __smp_locks_end,
+ _text, _etext);
+ }
+ free_init_pages("SMP alternatives",
+ (unsigned long)__smp_alt_begin,
+ (unsigned long)__smp_alt_end);
+ } else {
+ alternatives_smp_save(__smp_alt_instructions,
+ __smp_alt_instructions_end);
+ alternatives_smp_module_add(NULL, "core kernel",
+ __smp_locks, __smp_locks_end,
+ _text, _etext);
+ alternatives_smp_switch(0);
+ }
+}
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 776c909..eb5279d 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -38,6 +38,7 @@
#include <asm/i8253.h>
#include <mach_apic.h>
+#include <mach_apicdef.h>
#include <mach_ipi.h>
#include "io_ports.h"
diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c
index f52669e..bd75629 100644
--- a/arch/i386/kernel/cpu/centaur.c
+++ b/arch/i386/kernel/cpu/centaur.c
@@ -4,6 +4,7 @@
#include <asm/processor.h>
#include <asm/msr.h>
#include <asm/e820.h>
+#include <asm/mtrr.h>
#include "cpu.h"
#ifdef CONFIG_X86_OOSTORE
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index e6bd095..7e3d6b6 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -25,9 +25,10 @@
DEFINE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
EXPORT_PER_CPU_SYMBOL(cpu_16bit_stack);
-static int cachesize_override __devinitdata = -1;
-static int disable_x86_fxsr __devinitdata = 0;
-static int disable_x86_serial_nr __devinitdata = 1;
+static int cachesize_override __cpuinitdata = -1;
+static int disable_x86_fxsr __cpuinitdata;
+static int disable_x86_serial_nr __cpuinitdata = 1;
+static int disable_x86_sep __cpuinitdata;
struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
@@ -59,7 +60,7 @@
}
__setup("cachesize=", cachesize_setup);
-int __devinit get_model_name(struct cpuinfo_x86 *c)
+int __cpuinit get_model_name(struct cpuinfo_x86 *c)
{
unsigned int *v;
char *p, *q;
@@ -89,7 +90,7 @@
}
-void __devinit display_cacheinfo(struct cpuinfo_x86 *c)
+void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
{
unsigned int n, dummy, ecx, edx, l2size;
@@ -130,7 +131,7 @@
/* in particular, if CPUID levels 0x80000002..4 are supported, this isn't used */
/* Look up CPU names by table lookup. */
-static char __devinit *table_lookup_model(struct cpuinfo_x86 *c)
+static char __cpuinit *table_lookup_model(struct cpuinfo_x86 *c)
{
struct cpu_model_info *info;
@@ -151,7 +152,7 @@
}
-static void __devinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
+static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
{
char *v = c->x86_vendor_id;
int i;
@@ -187,6 +188,14 @@
__setup("nofxsr", x86_fxsr_setup);
+static int __init x86_sep_setup(char * s)
+{
+ disable_x86_sep = 1;
+ return 1;
+}
+__setup("nosep", x86_sep_setup);
+
+
/* Standard macro to see if a specific flag is changeable */
static inline int flag_is_changeable_p(u32 flag)
{
@@ -210,7 +219,7 @@
/* Probe for the CPUID instruction */
-static int __devinit have_cpuid_p(void)
+static int __cpuinit have_cpuid_p(void)
{
return flag_is_changeable_p(X86_EFLAGS_ID);
}
@@ -254,7 +263,7 @@
}
}
-void __devinit generic_identify(struct cpuinfo_x86 * c)
+void __cpuinit generic_identify(struct cpuinfo_x86 * c)
{
u32 tfms, xlvl;
int junk;
@@ -307,7 +316,7 @@
#endif
}
-static void __devinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
+static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
{
if (cpu_has(c, X86_FEATURE_PN) && disable_x86_serial_nr ) {
/* Disable processor serial number */
@@ -335,7 +344,7 @@
/*
* This does the hard work of actually picking apart the CPU stuff...
*/
-void __devinit identify_cpu(struct cpuinfo_x86 *c)
+void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
{
int i;
@@ -405,6 +414,10 @@
clear_bit(X86_FEATURE_XMM, c->x86_capability);
}
+ /* SEP disabled? */
+ if (disable_x86_sep)
+ clear_bit(X86_FEATURE_SEP, c->x86_capability);
+
if (disable_pse)
clear_bit(X86_FEATURE_PSE, c->x86_capability);
@@ -417,7 +430,7 @@
else
/* Last resort... */
sprintf(c->x86_model_id, "%02x/%02x",
- c->x86_vendor, c->x86_model);
+ c->x86, c->x86_model);
}
/* Now the feature flags better reflect actual CPU features! */
@@ -453,7 +466,7 @@
}
#ifdef CONFIG_X86_HT
-void __devinit detect_ht(struct cpuinfo_x86 *c)
+void __cpuinit detect_ht(struct cpuinfo_x86 *c)
{
u32 eax, ebx, ecx, edx;
int index_msb, core_bits;
@@ -500,7 +513,7 @@
}
#endif
-void __devinit print_cpu_info(struct cpuinfo_x86 *c)
+void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
{
char *vendor = NULL;
@@ -523,7 +536,7 @@
printk("\n");
}
-cpumask_t cpu_initialized __devinitdata = CPU_MASK_NONE;
+cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
/* This is hacky. :)
* We're emulating future behavior.
@@ -570,7 +583,7 @@
* and IDT. We reload them nevertheless, this function acts as a
* 'CPU state barrier', nothing should get across.
*/
-void __devinit cpu_init(void)
+void __cpuinit cpu_init(void)
{
int cpu = smp_processor_id();
struct tss_struct * t = &per_cpu(init_tss, cpu);
@@ -670,7 +683,7 @@
}
#ifdef CONFIG_HOTPLUG_CPU
-void __devinit cpu_uninit(void)
+void __cpuinit cpu_uninit(void)
{
int cpu = raw_smp_processor_id();
cpu_clear(cpu, cpu_initialized);
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index e11a092..3d5110b 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -1145,9 +1145,7 @@
{
unsigned int i, supported_cpus = 0;
- for (i=0; i<NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
+ for_each_cpu(i) {
if (check_supported_cpu(i))
supported_cpus++;
}
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c
index 8c01201..5386b29 100644
--- a/arch/i386/kernel/cpu/intel.c
+++ b/arch/i386/kernel/cpu/intel.c
@@ -29,7 +29,7 @@
struct movsl_mask movsl_mask __read_mostly;
#endif
-void __devinit early_intel_workaround(struct cpuinfo_x86 *c)
+void __cpuinit early_intel_workaround(struct cpuinfo_x86 *c)
{
if (c->x86_vendor != X86_VENDOR_INTEL)
return;
@@ -44,7 +44,7 @@
* This is called before we do cpu ident work
*/
-int __devinit ppro_with_ram_bug(void)
+int __cpuinit ppro_with_ram_bug(void)
{
/* Uses data from early_cpu_detect now */
if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
@@ -62,7 +62,7 @@
* P4 Xeon errata 037 workaround.
* Hardware prefetcher may cause stale data to be loaded into the cache.
*/
-static void __devinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
+static void __cpuinit Intel_errata_workarounds(struct cpuinfo_x86 *c)
{
unsigned long lo, hi;
@@ -81,7 +81,7 @@
/*
* find out the number of processor cores on the die
*/
-static int __devinit num_cpu_cores(struct cpuinfo_x86 *c)
+static int __cpuinit num_cpu_cores(struct cpuinfo_x86 *c)
{
unsigned int eax, ebx, ecx, edx;
@@ -96,7 +96,7 @@
return 1;
}
-static void __devinit init_intel(struct cpuinfo_x86 *c)
+static void __cpuinit init_intel(struct cpuinfo_x86 *c)
{
unsigned int l2 = 0;
char *p = NULL;
@@ -205,7 +205,7 @@
return size;
}
-static struct cpu_dev intel_cpu_dev __devinitdata = {
+static struct cpu_dev intel_cpu_dev __cpuinitdata = {
.c_vendor = "Intel",
.c_ident = { "GenuineIntel" },
.c_models = {
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index ffe58ce..ce61921 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -174,7 +174,7 @@
unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */
- if (c->cpuid_level > 4) {
+ if (c->cpuid_level > 3) {
static int is_initialized;
if (is_initialized == 0) {
@@ -330,7 +330,7 @@
}
}
}
-static void __devinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
+static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
{
struct _cpuid4_info *this_leaf, *sibling_leaf;
int sibling;
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 89a85af..5cfbd80 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -40,7 +40,7 @@
/* Other (Linux-defined) */
"cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
NULL, NULL, NULL, NULL,
- "constant_tsc", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "constant_tsc", "up", NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index d49dbe8..e3c5fca0 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -105,7 +105,7 @@
return 1;
local_irq_disable();
- if (!user_mode(regs)) {
+ if (!user_mode_vm(regs)) {
crash_fixup_ss_esp(&fixed_regs, regs);
regs = &fixed_regs;
}
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 4d70472..cfc683f 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -226,6 +226,10 @@
pushl %eax # save orig_eax
SAVE_ALL
GET_THREAD_INFO(%ebp)
+ testl $TF_MASK,EFLAGS(%esp)
+ jz no_singlestep
+ orl $_TIF_SINGLESTEP,TI_flags(%ebp)
+no_singlestep:
# system call tracing in operation / emulation
/* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */
testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp)
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S
index e0b7c63..3debc2e 100644
--- a/arch/i386/kernel/head.S
+++ b/arch/i386/kernel/head.S
@@ -450,7 +450,6 @@
.globl boot_gdt_descr
.globl idt_descr
-.globl cpu_gdt_descr
ALIGN
# early boot GDT descriptor (must use 1:1 address mapping)
@@ -470,8 +469,6 @@
.word GDT_ENTRIES*8-1
.long cpu_gdt_table
- .fill NR_CPUS-1,8,0 # space for the other GDT descriptors
-
/*
* The boot_gdt_table must mirror the equivalent in setup.S and is
* used only for booting.
@@ -485,7 +482,7 @@
/*
* The Global Descriptor Table contains 28 quadwords, per-CPU.
*/
- .align PAGE_SIZE_asm
+ .align L1_CACHE_BYTES
ENTRY(cpu_gdt_table)
.quad 0x0000000000000000 /* NULL descriptor */
.quad 0x0000000000000000 /* 0x0b reserved */
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 39d9a5f..311b4e7 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -351,8 +351,8 @@
{
int i, j;
Dprintk("Rotating IRQs among CPUs.\n");
- for (i = 0; i < NR_CPUS; i++) {
- for (j = 0; cpu_online(i) && (j < NR_IRQS); j++) {
+ for_each_online_cpu(i) {
+ for (j = 0; j < NR_IRQS; j++) {
if (!irq_desc[j].action)
continue;
/* Is it a significant load ? */
@@ -381,7 +381,7 @@
unsigned long imbalance = 0;
cpumask_t allowed_mask, target_cpu_mask, tmp;
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
int package_index;
CPU_IRQ(i) = 0;
if (!cpu_online(i))
@@ -422,9 +422,7 @@
}
}
/* Find the least loaded processor package */
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
if (i != CPU_TO_PACKAGEINDEX(i))
continue;
if (min_cpu_irq > CPU_IRQ(i)) {
@@ -441,9 +439,7 @@
*/
tmp_cpu_irq = 0;
tmp_loaded = -1;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
if (i != CPU_TO_PACKAGEINDEX(i))
continue;
if (max_cpu_irq <= CPU_IRQ(i))
@@ -619,9 +615,7 @@
if (smp_num_siblings > 1 && !cpus_empty(tmp))
physical_balance = 1;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
irq_cpu_data[i].irq_delta = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
irq_cpu_data[i].last_irq = kmalloc(sizeof(unsigned long) * NR_IRQS, GFP_KERNEL);
if (irq_cpu_data[i].irq_delta == NULL || irq_cpu_data[i].last_irq == NULL) {
@@ -638,9 +632,11 @@
else
printk(KERN_ERR "balanced_irq_init: failed to spawn balanced_irq");
failed:
- for (i = 0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
kfree(irq_cpu_data[i].irq_delta);
+ irq_cpu_data[i].irq_delta = NULL;
kfree(irq_cpu_data[i].last_irq);
+ irq_cpu_data[i].last_irq = NULL;
}
return 0;
}
@@ -1761,7 +1757,8 @@
* Don't check I/O APIC IDs for xAPIC systems. They have
* no meaning without the serial APIC bus.
*/
- if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && boot_cpu_data.x86 < 15))
+ if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ || APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
return;
/*
* This is broken; anything with a real cpu count has to
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index 694a139..7a59050 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -84,9 +84,9 @@
void __kprobes arch_remove_kprobe(struct kprobe *p)
{
- down(&kprobe_mutex);
+ mutex_lock(&kprobe_mutex);
free_insn_slot(p->ainsn.insn);
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
}
static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
diff --git a/arch/i386/kernel/module.c b/arch/i386/kernel/module.c
index 5149c8a..470cf97 100644
--- a/arch/i386/kernel/module.c
+++ b/arch/i386/kernel/module.c
@@ -104,26 +104,38 @@
return -ENOEXEC;
}
-extern void apply_alternatives(void *start, void *end);
-
int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *me)
{
- const Elf_Shdr *s;
+ const Elf_Shdr *s, *text = NULL, *alt = NULL, *locks = NULL;
char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
- /* look for .altinstructions to patch */
for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) {
- void *seg;
- if (strcmp(".altinstructions", secstrings + s->sh_name))
- continue;
- seg = (void *)s->sh_addr;
- apply_alternatives(seg, seg + s->sh_size);
- }
+ if (!strcmp(".text", secstrings + s->sh_name))
+ text = s;
+ if (!strcmp(".altinstructions", secstrings + s->sh_name))
+ alt = s;
+ if (!strcmp(".smp_locks", secstrings + s->sh_name))
+ locks= s;
+ }
+
+ if (alt) {
+ /* patch .altinstructions */
+ void *aseg = (void *)alt->sh_addr;
+ apply_alternatives(aseg, aseg + alt->sh_size);
+ }
+ if (locks && text) {
+ void *lseg = (void *)locks->sh_addr;
+ void *tseg = (void *)text->sh_addr;
+ alternatives_smp_module_add(me, me->name,
+ lseg, lseg + locks->sh_size,
+ tseg, tseg + text->sh_size);
+ }
return 0;
}
void module_arch_cleanup(struct module *mod)
{
+ alternatives_smp_module_del(mod);
}
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index e6e2f43..8d8aa9d 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -828,6 +828,8 @@
smp_scan_config(address, 0x400);
}
+int es7000_plat;
+
/* --------------------------------------------------------------------------
ACPI-based MP Configuration
-------------------------------------------------------------------------- */
@@ -935,7 +937,8 @@
mp_ioapics[idx].mpc_apicaddr = address;
set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
- if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 < 15))
+ if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ && !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
tmpid = io_apic_get_unique_id(idx, id);
else
tmpid = id;
@@ -1011,8 +1014,6 @@
return;
}
-int es7000_plat;
-
void __init mp_config_acpi_legacy_irqs (void)
{
struct mpc_config_intsrc intsrc;
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index be87c5e..9074818 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -143,7 +143,7 @@
local_irq_enable();
mdelay((10*1000)/nmi_hz); // wait 10 ticks
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
+ for_each_cpu(cpu) {
#ifdef CONFIG_SMP
/* Check cpu_callin_map here because that is set
after the timer is started. */
@@ -510,7 +510,7 @@
* Just reset the alert counters, (other CPUs might be
* spinning on locks we hold):
*/
- for (i = 0; i < NR_CPUS; i++)
+ for_each_cpu(i)
alert_counter[i] = 0;
/*
@@ -543,7 +543,7 @@
/*
* die_nmi will return ONLY if NOTIFY_STOP happens..
*/
- die_nmi(regs, "NMI Watchdog detected LOCKUP");
+ die_nmi(regs, "BUG: NMI Watchdog detected LOCKUP");
} else {
last_irq_sums[cpu] = sum;
alert_counter[cpu] = 0;
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 0480454..299e616 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -295,7 +295,7 @@
printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
print_symbol("EIP is at %s\n", regs->eip);
- if (user_mode(regs))
+ 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,
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 5c1fb6a..506462e 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -34,10 +34,10 @@
/*
* Determines which flags the user has access to [1 = access, 0 = no access].
- * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), IOPL(12-13), IF(9).
+ * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).
* Also masks reserved bits (31-22, 15, 5, 3, 1).
*/
-#define FLAG_MASK 0x00054dd5
+#define FLAG_MASK 0x00050dd5
/* set's the trap flag. */
#define TRAP_FLAG 0x100
diff --git a/arch/i386/kernel/semaphore.c b/arch/i386/kernel/semaphore.c
index 7455ab6..967dc74 100644
--- a/arch/i386/kernel/semaphore.c
+++ b/arch/i386/kernel/semaphore.c
@@ -110,11 +110,11 @@
".align 4\n"
".globl __write_lock_failed\n"
"__write_lock_failed:\n\t"
- LOCK "addl $" RW_LOCK_BIAS_STR ",(%eax)\n"
+ LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ",(%eax)\n"
"1: rep; nop\n\t"
"cmpl $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
"jne 1b\n\t"
- LOCK "subl $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
+ LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
"jnz __write_lock_failed\n\t"
"ret"
);
@@ -124,11 +124,11 @@
".align 4\n"
".globl __read_lock_failed\n"
"__read_lock_failed:\n\t"
- LOCK "incl (%eax)\n"
+ LOCK_PREFIX "incl (%eax)\n"
"1: rep; nop\n\t"
"cmpl $1,(%eax)\n\t"
"js 1b\n\t"
- LOCK "decl (%eax)\n\t"
+ LOCK_PREFIX "decl (%eax)\n\t"
"js __read_lock_failed\n\t"
"ret"
);
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index ab62a9f..2d87829 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1377,101 +1377,6 @@
pci_mem_start, gapstart, gapsize);
}
-/* Use inline assembly to define this because the nops are defined
- as inline assembly strings in the include files and we cannot
- get them easily into strings. */
-asm("\t.data\nintelnops: "
- GENERIC_NOP1 GENERIC_NOP2 GENERIC_NOP3 GENERIC_NOP4 GENERIC_NOP5 GENERIC_NOP6
- GENERIC_NOP7 GENERIC_NOP8);
-asm("\t.data\nk8nops: "
- K8_NOP1 K8_NOP2 K8_NOP3 K8_NOP4 K8_NOP5 K8_NOP6
- K8_NOP7 K8_NOP8);
-asm("\t.data\nk7nops: "
- K7_NOP1 K7_NOP2 K7_NOP3 K7_NOP4 K7_NOP5 K7_NOP6
- K7_NOP7 K7_NOP8);
-
-extern unsigned char intelnops[], k8nops[], k7nops[];
-static unsigned char *intel_nops[ASM_NOP_MAX+1] = {
- NULL,
- intelnops,
- intelnops + 1,
- intelnops + 1 + 2,
- intelnops + 1 + 2 + 3,
- intelnops + 1 + 2 + 3 + 4,
- intelnops + 1 + 2 + 3 + 4 + 5,
- intelnops + 1 + 2 + 3 + 4 + 5 + 6,
- intelnops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-};
-static unsigned char *k8_nops[ASM_NOP_MAX+1] = {
- NULL,
- k8nops,
- k8nops + 1,
- k8nops + 1 + 2,
- k8nops + 1 + 2 + 3,
- k8nops + 1 + 2 + 3 + 4,
- k8nops + 1 + 2 + 3 + 4 + 5,
- k8nops + 1 + 2 + 3 + 4 + 5 + 6,
- k8nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-};
-static unsigned char *k7_nops[ASM_NOP_MAX+1] = {
- NULL,
- k7nops,
- k7nops + 1,
- k7nops + 1 + 2,
- k7nops + 1 + 2 + 3,
- k7nops + 1 + 2 + 3 + 4,
- k7nops + 1 + 2 + 3 + 4 + 5,
- k7nops + 1 + 2 + 3 + 4 + 5 + 6,
- k7nops + 1 + 2 + 3 + 4 + 5 + 6 + 7,
-};
-static struct nop {
- int cpuid;
- unsigned char **noptable;
-} noptypes[] = {
- { X86_FEATURE_K8, k8_nops },
- { X86_FEATURE_K7, k7_nops },
- { -1, NULL }
-};
-
-/* Replace instructions with better alternatives for this CPU type.
-
- This runs before SMP is initialized to avoid SMP problems with
- self modifying code. This implies that assymetric systems where
- APs have less capabilities than the boot processor are not handled.
- Tough. Make sure you disable such features by hand. */
-void apply_alternatives(void *start, void *end)
-{
- struct alt_instr *a;
- int diff, i, k;
- unsigned char **noptable = intel_nops;
- for (i = 0; noptypes[i].cpuid >= 0; i++) {
- if (boot_cpu_has(noptypes[i].cpuid)) {
- noptable = noptypes[i].noptable;
- break;
- }
- }
- for (a = start; (void *)a < end; a++) {
- if (!boot_cpu_has(a->cpuid))
- continue;
- BUG_ON(a->replacementlen > a->instrlen);
- memcpy(a->instr, a->replacement, a->replacementlen);
- diff = a->instrlen - a->replacementlen;
- /* Pad the rest with nops */
- for (i = a->replacementlen; diff > 0; diff -= k, i += k) {
- k = diff;
- if (k > ASM_NOP_MAX)
- k = ASM_NOP_MAX;
- memcpy(a->instr + i, noptable[k], k);
- }
- }
-}
-
-void __init alternative_instructions(void)
-{
- extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
- apply_alternatives(__alt_instructions, __alt_instructions_end);
-}
-
static char * __init machine_specific_memory_setup(void);
#ifdef CONFIG_MCA
@@ -1554,6 +1459,16 @@
parse_cmdline_early(cmdline_p);
+#ifdef CONFIG_EARLY_PRINTK
+ {
+ char *s = strstr(*cmdline_p, "earlyprintk=");
+ if (s) {
+ setup_early_printk(strchr(s, '=') + 1);
+ printk("early console enabled\n");
+ }
+ }
+#endif
+
max_low_pfn = setup_memory();
/*
@@ -1578,19 +1493,6 @@
* NOTE: at this point the bootmem allocator is fully available.
*/
-#ifdef CONFIG_EARLY_PRINTK
- {
- char *s = strstr(*cmdline_p, "earlyprintk=");
- if (s) {
- extern void setup_early_printk(char *);
-
- setup_early_printk(strchr(s, '=') + 1);
- printk("early console enabled\n");
- }
- }
-#endif
-
-
dmi_scan_machine();
#ifdef CONFIG_X86_GENERICARCH
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index 963616d..5c352c3 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -123,7 +123,8 @@
err |= __get_user(tmp, &sc->seg); \
loadsegment(seg,tmp); }
-#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | X86_EFLAGS_DF | \
+#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_RF | \
+ X86_EFLAGS_OF | X86_EFLAGS_DF | \
X86_EFLAGS_TF | X86_EFLAGS_SF | X86_EFLAGS_ZF | \
X86_EFLAGS_AF | X86_EFLAGS_PF | X86_EFLAGS_CF)
@@ -582,9 +583,6 @@
if (!user_mode(regs))
return;
- if (try_to_freeze())
- goto no_signal;
-
if (test_thread_flag(TIF_RESTORE_SIGMASK))
oldset = ¤t->saved_sigmask;
else
@@ -613,7 +611,6 @@
return;
}
-no_signal:
/* Did we come from a system call? */
if (regs->orig_eax >= 0) {
/* Restart the system call - no handlers present */
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 7007e17..4c470e9 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -899,6 +899,7 @@
unsigned short nmi_high = 0, nmi_low = 0;
++cpucount;
+ alternatives_smp_switch(1);
/*
* We can't use kernel_thread since we must avoid to
@@ -1368,6 +1369,8 @@
/* They ack this in play_dead by setting CPU_DEAD */
if (per_cpu(cpu_state, cpu) == CPU_DEAD) {
printk ("CPU %d is now offline\n", cpu);
+ if (1 == num_online_cpus())
+ alternatives_smp_switch(0);
return;
}
msleep(100);
diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c
index 67a0e1b..2963552 100644
--- a/arch/i386/kernel/topology.c
+++ b/arch/i386/kernel/topology.c
@@ -41,6 +41,15 @@
parent = &node_devices[node].node;
#endif /* CONFIG_NUMA */
+ /*
+ * CPU0 cannot be offlined due to several
+ * restrictions and assumptions in kernel. This basically
+ * doesnt add a control file, one cannot attempt to offline
+ * BSP.
+ */
+ if (!num)
+ cpu_devices[num].cpu.no_control = 1;
+
return register_cpu(&cpu_devices[num].cpu, num, parent);
}
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index b814dbd..de5386b 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -99,6 +99,8 @@
{
int err = 0;
unsigned long flags;
+
+ vmalloc_sync_all();
spin_lock_irqsave(&die_notifier_lock, flags);
err = notifier_chain_register(&i386die_chain, nb);
spin_unlock_irqrestore(&die_notifier_lock, flags);
@@ -112,12 +114,30 @@
p < (void *)tinfo + THREAD_SIZE - 3;
}
-static void print_addr_and_symbol(unsigned long addr, char *log_lvl)
+/*
+ * Print CONFIG_STACK_BACKTRACE_COLS address/symbol entries per line.
+ */
+static inline int print_addr_and_symbol(unsigned long addr, char *log_lvl,
+ int printed)
{
- printk(log_lvl);
+ if (!printed)
+ printk(log_lvl);
+
+#if CONFIG_STACK_BACKTRACE_COLS == 1
printk(" [<%08lx>] ", addr);
+#else
+ printk(" <%08lx> ", addr);
+#endif
print_symbol("%s", addr);
- printk("\n");
+
+ printed = (printed + 1) % CONFIG_STACK_BACKTRACE_COLS;
+
+ if (printed)
+ printk(" ");
+ else
+ printk("\n");
+
+ return printed;
}
static inline unsigned long print_context_stack(struct thread_info *tinfo,
@@ -125,20 +145,24 @@
char *log_lvl)
{
unsigned long addr;
+ int printed = 0; /* nr of entries already printed on current line */
#ifdef CONFIG_FRAME_POINTER
while (valid_stack_ptr(tinfo, (void *)ebp)) {
addr = *(unsigned long *)(ebp + 4);
- print_addr_and_symbol(addr, log_lvl);
+ printed = print_addr_and_symbol(addr, log_lvl, printed);
ebp = *(unsigned long *)ebp;
}
#else
while (valid_stack_ptr(tinfo, stack)) {
addr = *stack++;
if (__kernel_text_address(addr))
- print_addr_and_symbol(addr, log_lvl);
+ printed = print_addr_and_symbol(addr, log_lvl, printed);
}
#endif
+ if (printed)
+ printk("\n");
+
return ebp;
}
@@ -166,8 +190,7 @@
stack = (unsigned long*)context->previous_esp;
if (!stack)
break;
- printk(log_lvl);
- printk(" =======================\n");
+ printk("%s =======================\n", log_lvl);
}
}
@@ -194,21 +217,17 @@
for(i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
- if (i && ((i % 8) == 0)) {
- printk("\n");
- printk(log_lvl);
- printk(" ");
- }
+ if (i && ((i % 8) == 0))
+ printk("\n%s ", log_lvl);
printk("%08lx ", *stack++);
}
- printk("\n");
- printk(log_lvl);
- printk("Call Trace:\n");
+ printk("\n%sCall Trace:\n", log_lvl);
show_trace_log_lvl(task, esp, log_lvl);
}
void show_stack(struct task_struct *task, unsigned long *esp)
{
+ printk(" ");
show_stack_log_lvl(task, esp, "");
}
@@ -233,7 +252,7 @@
esp = (unsigned long) (®s->esp);
savesegment(ss, ss);
- if (user_mode(regs)) {
+ if (user_mode_vm(regs)) {
in_kernel = 0;
esp = regs->esp;
ss = regs->xss & 0xffff;
@@ -333,6 +352,8 @@
static int die_counter;
unsigned long flags;
+ oops_enter();
+
if (die.lock_owner != raw_smp_processor_id()) {
console_verbose();
spin_lock_irqsave(&die.lock, flags);
@@ -385,6 +406,7 @@
ssleep(5);
panic("Fatal exception");
}
+ oops_exit();
do_exit(SIGSEGV);
}
@@ -623,7 +645,7 @@
/* If we are in kernel we are probably nested up pretty bad
* and might aswell get out now while we still can.
*/
- if (!user_mode(regs)) {
+ if (!user_mode_vm(regs)) {
current->thread.trap_no = 2;
crash_kexec(regs);
}
@@ -694,6 +716,7 @@
void set_nmi_callback(nmi_callback_t callback)
{
+ vmalloc_sync_all();
rcu_assign_pointer(nmi_callback, callback);
}
EXPORT_SYMBOL_GPL(set_nmi_callback);
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index 4710195..3f21c6f 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -68,6 +68,26 @@
*(.data.init_task)
}
+ /* might get freed after init */
+ . = ALIGN(4096);
+ __smp_alt_begin = .;
+ __smp_alt_instructions = .;
+ .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
+ *(.smp_altinstructions)
+ }
+ __smp_alt_instructions_end = .;
+ . = ALIGN(4);
+ __smp_locks = .;
+ .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+ *(.smp_locks)
+ }
+ __smp_locks_end = .;
+ .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
+ *(.smp_altinstr_replacement)
+ }
+ . = ALIGN(4096);
+ __smp_alt_end = .;
+
/* will be freed after init */
. = ALIGN(4096); /* Init code and data */
__init_begin = .;
diff --git a/arch/i386/kernel/vsyscall-sysenter.S b/arch/i386/kernel/vsyscall-sysenter.S
index 76b7281..3b62baa 100644
--- a/arch/i386/kernel/vsyscall-sysenter.S
+++ b/arch/i386/kernel/vsyscall-sysenter.S
@@ -21,6 +21,9 @@
* instruction clobbers %esp, the user's %esp won't even survive entry
* into the kernel. We store %esp in %ebp. Code in entry.S must fetch
* arg6 from the stack.
+ *
+ * You can not use this vsyscall for the clone() syscall because the
+ * three dwords on the parent stack do not get copied to the child.
*/
.text
.globl __kernel_vsyscall
diff --git a/arch/i386/mach-es7000/es7000.h b/arch/i386/mach-es7000/es7000.h
index f1e3204..80566ca 100644
--- a/arch/i386/mach-es7000/es7000.h
+++ b/arch/i386/mach-es7000/es7000.h
@@ -83,6 +83,7 @@
struct psai psai;
};
+#ifdef CONFIG_ACPI
struct acpi_table_sdt {
unsigned long pa;
unsigned long count;
@@ -99,6 +100,9 @@
u32 OEMTableSize;
};
+extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
+#endif
+
struct mip_reg {
unsigned long long off_0;
unsigned long long off_8;
@@ -114,7 +118,6 @@
#define MIP_FUNC(VALUE) (VALUE & 0xff)
extern int parse_unisys_oem (char *oemptr);
-extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
extern void setup_unisys(void);
extern int es7000_start_cpu(int cpu, unsigned long eip);
extern void es7000_sw_apic(void);
diff --git a/arch/i386/mach-es7000/es7000plat.c b/arch/i386/mach-es7000/es7000plat.c
index a9ab064..3d0fc85 100644
--- a/arch/i386/mach-es7000/es7000plat.c
+++ b/arch/i386/mach-es7000/es7000plat.c
@@ -51,8 +51,6 @@
int mip_port;
unsigned long mip_addr, host_addr;
-#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI)
-
/*
* GSI override for ES7000 platforms.
*/
@@ -76,8 +74,6 @@
return gsi;
}
-#endif /* (CONFIG_X86_IO_APIC) && (CONFIG_ACPI) */
-
void __init
setup_unisys(void)
{
@@ -160,6 +156,7 @@
return es7000_plat;
}
+#ifdef CONFIG_ACPI
int __init
find_unisys_acpi_oem_table(unsigned long *oem_addr)
{
@@ -212,6 +209,7 @@
}
return -1;
}
+#endif
static void
es7000_spin(int n)
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index cf572d9..7f0fcf2 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -214,6 +214,68 @@
fastcall void do_invalid_op(struct pt_regs *, unsigned long);
+static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
+{
+ unsigned index = pgd_index(address);
+ pgd_t *pgd_k;
+ pud_t *pud, *pud_k;
+ pmd_t *pmd, *pmd_k;
+
+ pgd += index;
+ pgd_k = init_mm.pgd + index;
+
+ if (!pgd_present(*pgd_k))
+ return NULL;
+
+ /*
+ * set_pgd(pgd, *pgd_k); here would be useless on PAE
+ * and redundant with the set_pmd() on non-PAE. As would
+ * set_pud.
+ */
+
+ pud = pud_offset(pgd, address);
+ pud_k = pud_offset(pgd_k, address);
+ if (!pud_present(*pud_k))
+ return NULL;
+
+ pmd = pmd_offset(pud, address);
+ pmd_k = pmd_offset(pud_k, address);
+ if (!pmd_present(*pmd_k))
+ return NULL;
+ if (!pmd_present(*pmd))
+ set_pmd(pmd, *pmd_k);
+ else
+ BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
+ return pmd_k;
+}
+
+/*
+ * Handle a fault on the vmalloc or module mapping area
+ *
+ * This assumes no large pages in there.
+ */
+static inline int vmalloc_fault(unsigned long address)
+{
+ unsigned long pgd_paddr;
+ pmd_t *pmd_k;
+ pte_t *pte_k;
+ /*
+ * Synchronize this task's top level page-table
+ * with the 'reference' page table.
+ *
+ * Do _not_ use "current" here. We might be inside
+ * an interrupt in the middle of a task switch..
+ */
+ pgd_paddr = read_cr3();
+ pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
+ if (!pmd_k)
+ return -1;
+ pte_k = pte_offset_kernel(pmd_k, address);
+ if (!pte_present(*pte_k))
+ return -1;
+ return 0;
+}
+
/*
* This routine handles page faults. It determines the address,
* and the problem, and then passes it off to one of the appropriate
@@ -223,6 +285,8 @@
* bit 0 == 0 means no page found, 1 means protection fault
* bit 1 == 0 means read, 1 means write
* bit 2 == 0 means kernel, 1 means user-mode
+ * bit 3 == 1 means use of reserved bit detected
+ * bit 4 == 1 means fault was an instruction fetch
*/
fastcall void __kprobes do_page_fault(struct pt_regs *regs,
unsigned long error_code)
@@ -237,13 +301,6 @@
/* get the address */
address = read_cr2();
- if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14,
- SIGSEGV) == NOTIFY_STOP)
- return;
- /* It's safe to allow irq's after cr2 has been saved */
- if (regs->eflags & (X86_EFLAGS_IF|VM_MASK))
- local_irq_enable();
-
tsk = current;
si_code = SEGV_MAPERR;
@@ -259,17 +316,29 @@
*
* This verifies that the fault happens in kernel space
* (error_code & 4) == 0, and that the fault was not a
- * protection error (error_code & 1) == 0.
+ * protection error (error_code & 9) == 0.
*/
- if (unlikely(address >= TASK_SIZE)) {
- if (!(error_code & 5))
- goto vmalloc_fault;
- /*
+ if (unlikely(address >= TASK_SIZE)) {
+ if (!(error_code & 0x0000000d) && vmalloc_fault(address) >= 0)
+ return;
+ if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14,
+ SIGSEGV) == NOTIFY_STOP)
+ return;
+ /*
* Don't take the mm semaphore here. If we fixup a prefetch
* fault we could otherwise deadlock.
*/
goto bad_area_nosemaphore;
- }
+ }
+
+ if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14,
+ SIGSEGV) == NOTIFY_STOP)
+ return;
+
+ /* It's safe to allow irq's after cr2 has been saved and the vmalloc
+ fault has been handled. */
+ if (regs->eflags & (X86_EFLAGS_IF|VM_MASK))
+ local_irq_enable();
mm = tsk->mm;
@@ -440,24 +509,31 @@
bust_spinlocks(1);
-#ifdef CONFIG_X86_PAE
- if (error_code & 16) {
- pte_t *pte = lookup_address(address);
+ if (oops_may_print()) {
+ #ifdef CONFIG_X86_PAE
+ if (error_code & 16) {
+ pte_t *pte = lookup_address(address);
- if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
- printk(KERN_CRIT "kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n", current->uid);
+ if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
+ printk(KERN_CRIT "kernel tried to execute "
+ "NX-protected page - exploit attempt? "
+ "(uid: %d)\n", current->uid);
+ }
+ #endif
+ if (address < PAGE_SIZE)
+ printk(KERN_ALERT "BUG: unable to handle kernel NULL "
+ "pointer dereference");
+ else
+ printk(KERN_ALERT "BUG: unable to handle kernel paging"
+ " request");
+ printk(" at virtual address %08lx\n",address);
+ printk(KERN_ALERT " printing eip:\n");
+ printk("%08lx\n", regs->eip);
}
-#endif
- if (address < PAGE_SIZE)
- printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
- else
- printk(KERN_ALERT "Unable to handle kernel paging request");
- printk(" at virtual address %08lx\n",address);
- printk(KERN_ALERT " printing eip:\n");
- printk("%08lx\n", regs->eip);
page = read_cr3();
page = ((unsigned long *) __va(page))[address >> 22];
- printk(KERN_ALERT "*pde = %08lx\n", page);
+ if (oops_may_print())
+ printk(KERN_ALERT "*pde = %08lx\n", page);
/*
* We must not directly access the pte in the highpte
* case, the page table might be allocated in highmem.
@@ -465,7 +541,7 @@
* it's allocated already.
*/
#ifndef CONFIG_HIGHPTE
- if (page & 1) {
+ if ((page & 1) && oops_may_print()) {
page &= PAGE_MASK;
address &= 0x003ff000;
page = ((unsigned long *) __va(page))[address >> PAGE_SHIFT];
@@ -510,51 +586,41 @@
tsk->thread.error_code = error_code;
tsk->thread.trap_no = 14;
force_sig_info_fault(SIGBUS, BUS_ADRERR, address, tsk);
- return;
+}
-vmalloc_fault:
- {
- /*
- * Synchronize this task's top level page-table
- * with the 'reference' page table.
- *
- * Do _not_ use "tsk" here. We might be inside
- * an interrupt in the middle of a task switch..
- */
- int index = pgd_index(address);
- unsigned long pgd_paddr;
- pgd_t *pgd, *pgd_k;
- pud_t *pud, *pud_k;
- pmd_t *pmd, *pmd_k;
- pte_t *pte_k;
+#ifndef CONFIG_X86_PAE
+void vmalloc_sync_all(void)
+{
+ /*
+ * Note that races in the updates of insync and start aren't
+ * problematic: insync can only get set bits added, and updates to
+ * start are only improving performance (without affecting correctness
+ * if undone).
+ */
+ static DECLARE_BITMAP(insync, PTRS_PER_PGD);
+ static unsigned long start = TASK_SIZE;
+ unsigned long address;
- pgd_paddr = read_cr3();
- pgd = index + (pgd_t *)__va(pgd_paddr);
- pgd_k = init_mm.pgd + index;
+ BUILD_BUG_ON(TASK_SIZE & ~PGDIR_MASK);
+ for (address = start; address >= TASK_SIZE; address += PGDIR_SIZE) {
+ if (!test_bit(pgd_index(address), insync)) {
+ unsigned long flags;
+ struct page *page;
- if (!pgd_present(*pgd_k))
- goto no_context;
-
- /*
- * set_pgd(pgd, *pgd_k); here would be useless on PAE
- * and redundant with the set_pmd() on non-PAE. As would
- * set_pud.
- */
-
- pud = pud_offset(pgd, address);
- pud_k = pud_offset(pgd_k, address);
- if (!pud_present(*pud_k))
- goto no_context;
-
- pmd = pmd_offset(pud, address);
- pmd_k = pmd_offset(pud_k, address);
- if (!pmd_present(*pmd_k))
- goto no_context;
- set_pmd(pmd, *pmd_k);
-
- pte_k = pte_offset_kernel(pmd_k, address);
- if (!pte_present(*pte_k))
- goto no_context;
- return;
+ spin_lock_irqsave(&pgd_lock, flags);
+ for (page = pgd_list; page; page =
+ (struct page *)page->index)
+ if (!vmalloc_sync_one(page_address(page),
+ address)) {
+ BUG_ON(page != pgd_list);
+ break;
+ }
+ spin_unlock_irqrestore(&pgd_lock, flags);
+ if (!page)
+ set_bit(pgd_index(address), insync);
+ }
+ if (address == start && test_bit(pgd_index(address), insync))
+ start = address + PGDIR_SIZE;
}
}
+#endif
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 7ba55a6..9f66ac5 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -720,21 +720,6 @@
return flag;
}
-void free_initmem(void)
-{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- memset((void *)addr, 0xcc, PAGE_SIZE);
- free_page(addr);
- totalram_pages++;
- }
- printk (KERN_INFO "Freeing unused kernel memory: %dk freed\n", (__init_end - __init_begin) >> 10);
-}
-
#ifdef CONFIG_DEBUG_RODATA
extern char __start_rodata, __end_rodata;
@@ -758,17 +743,31 @@
}
#endif
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
+{
+ unsigned long addr;
+
+ for (addr = begin; addr < end; addr += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(addr));
+ init_page_count(virt_to_page(addr));
+ memset((void *)addr, 0xcc, PAGE_SIZE);
+ free_page(addr);
+ totalram_pages++;
+ }
+ printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+}
+
+void free_initmem(void)
+{
+ free_init_pages("unused kernel memory",
+ (unsigned long)(&__init_begin),
+ (unsigned long)(&__init_end));
+}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- if (start < end)
- printk (KERN_INFO "Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
+ free_init_pages("initrd memory", start, end);
}
#endif
+
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c
index 0493e8b..1accce5 100644
--- a/arch/i386/oprofile/nmi_int.c
+++ b/arch/i386/oprofile/nmi_int.c
@@ -122,7 +122,7 @@
static void free_msrs(void)
{
int i;
- for (i = 0; i < NR_CPUS; ++i) {
+ for_each_cpu(i) {
kfree(cpu_msrs[i].counters);
cpu_msrs[i].counters = NULL;
kfree(cpu_msrs[i].controls);
@@ -138,10 +138,7 @@
size_t counters_size = sizeof(struct op_msr) * model->num_counters;
int i;
- for (i = 0; i < NR_CPUS; ++i) {
- if (!cpu_online(i))
- continue;
-
+ for_each_online_cpu(i) {
cpu_msrs[i].counters = kmalloc(counters_size, GFP_KERNEL);
if (!cpu_msrs[i].counters) {
success = 0;
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 626cdc8..0e5c6ae 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -46,11 +46,6 @@
#define KEYBOARD_INTR 3 /* must match with simulator! */
#define NR_PORTS 1 /* only one port for now */
-#define SERIAL_INLINE 1
-
-#ifdef SERIAL_INLINE
-#define _INLINE_ inline
-#endif
#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? SA_SHIRQ : SA_INTERRUPT)
@@ -237,7 +232,7 @@
local_irq_restore(flags);
}
-static _INLINE_ void transmit_chars(struct async_struct *info, int *intr_done)
+static void transmit_chars(struct async_struct *info, int *intr_done)
{
int count;
unsigned long flags;
diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 1ce6392..a4634b0 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -37,9 +37,8 @@
if (i == 0) {
seq_printf(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
@@ -52,9 +51,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
seq_printf(p, " %s", action->name);
diff --git a/arch/m68k/bvme6000/rtc.c b/arch/m68k/bvme6000/rtc.c
index 703cbc6..15c16b6 100644
--- a/arch/m68k/bvme6000/rtc.c
+++ b/arch/m68k/bvme6000/rtc.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/mc146818rtc.h> /* For struct rtc_time and ioctls, etc */
#include <linux/smp_lock.h>
+#include <linux/bcd.h>
#include <asm/bvme6000hw.h>
#include <asm/io.h>
@@ -32,9 +33,6 @@
* ioctls.
*/
-#define BCD2BIN(val) (((val)&15) + ((val)>>4)*10)
-#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10)
-
static unsigned char days_in_mo[] =
{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index 7d93992..3dd76b3 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -68,9 +68,8 @@
if (i == 0) {
seq_printf(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
@@ -83,9 +82,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
seq_printf(p, " %s", action->name);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 06ed907..78d171b 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -167,8 +167,8 @@
mb();
/* Send a message to all other CPUs and wait for them to respond */
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_online(i) && i != cpu)
+ for_each_online_cpu(i)
+ if (i != cpu)
core_send_ipi(i, SMP_CALL_FUNCTION);
/* Wait for response */
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 73e5e52..2854ac4 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -88,12 +88,9 @@
{
int cpu, i;
- for (cpu = 0; cpu <= NR_CPUS; cpu++) {
+ for_each_online_cpu(cpu) {
struct slice_data *si = cpu_data[cpu].data;
- if (!cpu_online(cpu))
- continue;
-
for (i = BASE_PCI_IRQ; i < LEVELS_PER_SLICE; i++)
if (si->level_to_irq[i] == irq) {
*cpunum = cpu;
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 25564b7..d6ac1c6 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -298,8 +298,8 @@
{
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i) && i != smp_processor_id())
+ for_each_online_cpu(i) {
+ if (i != smp_processor_id())
send_IPI_single(i, op);
}
}
@@ -643,14 +643,13 @@
if ( argc == 1 ){
#ifdef DUMP_MORE_STATE
- for(i=0; i<NR_CPUS; i++) {
+ for_each_online_cpu(i) {
int cpus_per_line = 4;
- if(cpu_online(i)) {
- if (j++ % cpus_per_line)
- printk(" %3d",i);
- else
- printk("\n %3d",i);
- }
+
+ if (j++ % cpus_per_line)
+ printk(" %3d",i);
+ else
+ printk("\n %3d",i);
}
printk("\n");
#else
@@ -659,9 +658,7 @@
} else if((argc==2) && !(strcmp(argv[1],"-l"))) {
printk("\nCPUSTATE TASK CPUNUM CPUID HARDCPU(HPA)\n");
#ifdef DUMP_MORE_STATE
- for(i=0;i<NR_CPUS;i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
if (cpu_data[i].cpuid != NO_PROC_ID) {
switch(cpu_data[i].state) {
case STATE_RENDEZVOUS:
@@ -695,9 +692,7 @@
} else if ((argc==2) && !(strcmp(argv[1],"-s"))) {
#ifdef DUMP_MORE_STATE
printk("\nCPUSTATE CPUID\n");
- for (i=0;i<NR_CPUS;i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
if (cpu_data[i].cpuid != NO_PROC_ID) {
switch(cpu_data[i].state) {
case STATE_RENDEZVOUS:
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 24dc811..771a59c 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -135,9 +135,8 @@
#ifdef CONFIG_TAU_INT
if (tau_initialized){
seq_puts(p, "TAU: ");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", tau_interrupts(j));
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", tau_interrupts(j));
seq_puts(p, " PowerPC Thermal Assist (cpu temp)\n");
}
#endif
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 258039f..cb1fe58 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -81,9 +81,9 @@
void __kprobes arch_remove_kprobe(struct kprobe *p)
{
- down(&kprobe_mutex);
+ mutex_lock(&kprobe_mutex);
free_insn_slot(p->ainsn.insn);
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
}
static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index be12041..c1d62bf 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -162,9 +162,8 @@
#if defined(CONFIG_SMP) && defined(CONFIG_PPC32)
unsigned long bogosum = 0;
int i;
- for (i = 0; i < NR_CPUS; ++i)
- if (cpu_online(i))
- bogosum += loops_per_jiffy;
+ for_each_online_cpu(i)
+ bogosum += loops_per_jiffy;
seq_printf(m, "total bogomips\t: %lu.%02lu\n",
bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
#endif /* CONFIG_SMP && CONFIG_PPC32 */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index db72a92..dc2770d 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -272,9 +272,8 @@
if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff);
/* register CPU devices */
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_possible(i))
- register_cpu(&cpu_devices[i], i, NULL);
+ for_each_cpu(i)
+ register_cpu(&cpu_devices[i], i, NULL);
/* call platform init */
if (ppc_md.init != NULL) {
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 6d64a9b..1065d87 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -191,9 +191,7 @@
if (num_online_cpus() < 2)
return;
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_online(i))
- continue;
+ for_each_online_cpu(i) {
if (target == MSG_ALL
|| (target == MSG_ALL_BUT_SELF && i != smp_processor_id())
|| target == i) {
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index c08ab43..53e9dea 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -168,9 +168,8 @@
/* Show summary information */
#ifdef CONFIG_SMP
unsigned long bogosum = 0;
- for (i = 0; i < NR_CPUS; ++i)
- if (cpu_online(i))
- bogosum += cpu_data[i].loops_per_jiffy;
+ for_each_online_cpu(i)
+ bogosum += cpu_data[i].loops_per_jiffy;
seq_printf(m, "total bogomips\t: %lu.%02lu\n",
bogosum/(500000/HZ), bogosum/(5000/HZ) % 100);
#endif /* CONFIG_SMP */
@@ -712,9 +711,8 @@
if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff);
/* register CPU devices */
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_possible(i))
- register_cpu(&cpu_devices[i], i, NULL);
+ for_each_cpu(i)
+ register_cpu(&cpu_devices[i], i, NULL);
/* call platform init */
if (ppc_md.init != NULL) {
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 7dbe00c..d52d6d2 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -799,9 +799,7 @@
*/
print_cpu_info(&S390_lowcore.cpu_data);
- for(i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i))
- continue;
+ for_each_cpu(i) {
lowcore_ptr[i] = (struct _lowcore *)
__get_free_pages(GFP_KERNEL|GFP_DMA,
sizeof(void*) == 8 ? 1 : 0);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 6883c00..b56e796 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -35,9 +35,8 @@
if (i == 0) {
seq_puts(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index a067a34..c0e79843 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -404,9 +404,8 @@
{
int cpu_id;
- for (cpu_id = 0; cpu_id < NR_CPUS; cpu_id++)
- if (cpu_possible(cpu_id))
- register_cpu(&cpu[cpu_id], cpu_id, NULL);
+ for_each_cpu(cpu_id)
+ register_cpu(&cpu[cpu_id], cpu_id, NULL);
return 0;
}
diff --git a/arch/sh64/kernel/irq.c b/arch/sh64/kernel/irq.c
index 9fc2b71..d69879c 100644
--- a/arch/sh64/kernel/irq.c
+++ b/arch/sh64/kernel/irq.c
@@ -53,9 +53,8 @@
if (i == 0) {
seq_puts(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index 410b9a7..4c60a6e 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -184,9 +184,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++) {
- if (cpu_online(j))
- seq_printf(p, "%10u ",
+ for_each_online_cpu(j) {
+ seq_printf(p, "%10u ",
kstat_cpu(cpu_logical_map(j)).irqs[i]);
}
#endif
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index c6e721d..ea5682c 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -243,9 +243,8 @@
return -EINVAL;
spin_lock_irqsave(&prof_setup_lock, flags);
- for(i = 0; i < NR_CPUS; i++) {
- if (cpu_possible(i))
- load_profile_irq(i, lvl14_resolution / multiplier);
+ for_each_cpu(i) {
+ load_profile_irq(i, lvl14_resolution / multiplier);
prof_multiplier(i) = multiplier;
}
spin_unlock_irqrestore(&prof_setup_lock, flags);
@@ -273,13 +272,12 @@
{
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- seq_printf(m,
- "Cpu%dBogo\t: %lu.%02lu\n",
- i,
- cpu_data(i).udelay_val/(500000/HZ),
- (cpu_data(i).udelay_val/(5000/HZ))%100);
+ for_each_online_cpu(i) {
+ seq_printf(m,
+ "Cpu%dBogo\t: %lu.%02lu\n",
+ i,
+ cpu_data(i).udelay_val/(500000/HZ),
+ (cpu_data(i).udelay_val/(5000/HZ))%100);
}
}
@@ -288,8 +286,6 @@
int i;
seq_printf(m, "State:\n");
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- seq_printf(m, "CPU%d\t\t: online\n", i);
- }
+ for_each_online_cpu(i)
+ seq_printf(m, "CPU%d\t\t: online\n", i);
}
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 5262134..cea7fc6 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -103,11 +103,9 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (x = 0; x < NR_CPUS; x++) {
- if (cpu_online(x))
- seq_printf(p, "%10u ",
- kstat_cpu(cpu_logical_map(x)).irqs[i]);
- }
+ for_each_online_cpu(x)
+ seq_printf(p, "%10u ",
+ kstat_cpu(cpu_logical_map(x)).irqs[i]);
#endif
seq_printf(p, "%c %s",
(action->flags & SA_INTERRUPT) ? '+' : ' ',
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 4219dd2..41bb959 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -249,11 +249,9 @@
} else {
unsigned long bogosum = 0;
- for(i = 0; i < NR_CPUS; i++) {
- if (cpu_isset(i, cpu_present_map)) {
- bogosum += cpu_data(i).udelay_val;
- smp_highest_cpu = i;
- }
+ for_each_present_cpu(i) {
+ bogosum += cpu_data(i).udelay_val;
+ smp_highest_cpu = i;
}
SMP_PRINTK(("Total of %d Processors activated (%lu.%02lu BogoMIPS).\n", cpucount + 1, bogosum/(500000/HZ), (bogosum/(5000/HZ))%100));
printk("Total of %d Processors activated (%lu.%02lu BogoMIPS).\n",
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index fbbd8a4..1dde312 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -218,10 +218,8 @@
cpu_present_map = cpumask_of_cpu(smp_processor_id());
} else {
unsigned long bogosum = 0;
- for(i = 0; i < NR_CPUS; i++) {
- if (cpu_isset(i, cpu_present_map))
- bogosum += cpu_data(i).udelay_val;
- }
+ for_each_present_cpu(i)
+ bogosum += cpu_data(i).udelay_val;
printk("Total of %d Processors activated (%lu.%02lu BogoMIPS).\n",
cpucount + 1,
bogosum/(500000/HZ),
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 8c93ba6..e505a41 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -117,9 +117,7 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++) {
- if (!cpu_online(j))
- continue;
+ for_each_online_cpu(j) {
seq_printf(p, "%10u ",
kstat_cpu(j).irqs[i]);
}
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 373a701..1b6e2ad 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -57,25 +57,21 @@
int i;
seq_printf(m, "State:\n");
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- seq_printf(m,
- "CPU%d:\t\tonline\n", i);
- }
+ for_each_online_cpu(i)
+ seq_printf(m, "CPU%d:\t\tonline\n", i);
}
void smp_bogo(struct seq_file *m)
{
int i;
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_online(i))
- seq_printf(m,
- "Cpu%dBogo\t: %lu.%02lu\n"
- "Cpu%dClkTck\t: %016lx\n",
- i, cpu_data(i).udelay_val / (500000/HZ),
- (cpu_data(i).udelay_val / (5000/HZ)) % 100,
- i, cpu_data(i).clock_tick);
+ for_each_online_cpu(i)
+ seq_printf(m,
+ "Cpu%dBogo\t: %lu.%02lu\n"
+ "Cpu%dClkTck\t: %016lx\n",
+ i, cpu_data(i).udelay_val / (500000/HZ),
+ (cpu_data(i).udelay_val / (5000/HZ)) % 100,
+ i, cpu_data(i).clock_tick);
}
void __init smp_store_cpu_info(int id)
@@ -1282,7 +1278,7 @@
return -EINVAL;
spin_lock_irqsave(&prof_setup_lock, flags);
- for (i = 0; i < NR_CPUS; i++)
+ for_each_cpu(i)
prof_multiplier(i) = multiplier;
current_tick_offset = (timer_tick_offset / multiplier);
spin_unlock_irqrestore(&prof_setup_lock, flags);
@@ -1384,10 +1380,8 @@
unsigned long bogosum = 0;
int i;
- for (i = 0; i < NR_CPUS; i++) {
- if (cpu_online(i))
- bogosum += cpu_data(i).udelay_val;
- }
+ for_each_online_cpu(i)
+ bogosum += cpu_data(i).udelay_val;
printk("Total of %ld processors activated "
"(%lu.%02lu BogoMIPS).\n",
(long) num_online_cpus(),
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index ded63ee..1539a83 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1828,8 +1828,8 @@
void online_page(struct page *page)
{
ClearPageReserved(page);
- set_page_count(page, 0);
- free_cold_page(page);
+ init_page_count(page);
+ __free_page(page);
totalram_pages++;
num_physpages++;
}
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 27cdf91..80c9c18 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -491,6 +491,16 @@
check_devanon();
}
-void apply_alternatives(void *start, void *end)
+void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
+{
+}
+
+void alternatives_smp_module_add(struct module *mod, char *name,
+ void *locks, void *locks_end,
+ void *text, void *text_end)
+{
+}
+
+void alternatives_smp_module_del(struct module *mod)
{
}
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c
index 6dffb49..a8a6aa7 100644
--- a/arch/x86_64/kernel/early_printk.c
+++ b/arch/x86_64/kernel/early_printk.c
@@ -17,11 +17,8 @@
#define VGABASE ((void __iomem *)0xffffffff800b8000UL)
#endif
-#define MAX_YPOS max_ypos
-#define MAX_XPOS max_xpos
-
static int max_ypos = 25, max_xpos = 80;
-static int current_ypos = 1, current_xpos = 0;
+static int current_ypos = 25, current_xpos = 0;
static void early_vga_write(struct console *con, const char *str, unsigned n)
{
@@ -29,26 +26,26 @@
int i, k, j;
while ((c = *str++) != '\0' && n-- > 0) {
- if (current_ypos >= MAX_YPOS) {
+ if (current_ypos >= max_ypos) {
/* scroll 1 line up */
- for (k = 1, j = 0; k < MAX_YPOS; k++, j++) {
- for (i = 0; i < MAX_XPOS; i++) {
- writew(readw(VGABASE + 2*(MAX_XPOS*k + i)),
- VGABASE + 2*(MAX_XPOS*j + i));
+ for (k = 1, j = 0; k < max_ypos; k++, j++) {
+ for (i = 0; i < max_xpos; i++) {
+ writew(readw(VGABASE+2*(max_xpos*k+i)),
+ VGABASE + 2*(max_xpos*j + i));
}
}
- for (i = 0; i < MAX_XPOS; i++)
- writew(0x720, VGABASE + 2*(MAX_XPOS*j + i));
- current_ypos = MAX_YPOS-1;
+ for (i = 0; i < max_xpos; i++)
+ writew(0x720, VGABASE + 2*(max_xpos*j + i));
+ current_ypos = max_ypos-1;
}
if (c == '\n') {
current_xpos = 0;
current_ypos++;
} else if (c != '\r') {
writew(((0x7 << 8) | (unsigned short) c),
- VGABASE + 2*(MAX_XPOS*current_ypos +
+ VGABASE + 2*(max_xpos*current_ypos +
current_xpos++));
- if (current_xpos >= MAX_XPOS) {
+ if (current_xpos >= max_xpos) {
current_xpos = 0;
current_ypos++;
}
@@ -244,6 +241,7 @@
&& SCREEN_INFO.orig_video_isVGA == 1) {
max_xpos = SCREEN_INFO.orig_video_cols;
max_ypos = SCREEN_INFO.orig_video_lines;
+ current_ypos = SCREEN_INFO.orig_y;
early_console = &early_vga_console;
} else if (!strncmp(buf, "simnow", 6)) {
simnow_init(buf + 6);
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index 30d2a1e..d8bd0b3 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -38,9 +38,8 @@
if (i == 0) {
seq_printf(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
@@ -53,10 +52,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ",
- kstat_cpu(j).irqs[i]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
@@ -68,15 +65,13 @@
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
} else if (i == NR_IRQS) {
seq_printf(p, "NMI: ");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count);
seq_putc(p, '\n');
#ifdef CONFIG_X86_LOCAL_APIC
seq_printf(p, "LOC: ");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs);
seq_putc(p, '\n');
#endif
seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c
index 8b866a8..14f0ced 100644
--- a/arch/x86_64/kernel/kprobes.c
+++ b/arch/x86_64/kernel/kprobes.c
@@ -222,9 +222,9 @@
void __kprobes arch_remove_kprobe(struct kprobe *p)
{
- down(&kprobe_mutex);
+ mutex_lock(&kprobe_mutex);
free_insn_slot(p->ainsn.insn);
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
}
static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 5bf17e4..66c009e 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -162,9 +162,7 @@
local_irq_enable();
mdelay((10*1000)/nmi_hz); // wait 10 ticks
- for (cpu = 0; cpu < NR_CPUS; cpu++) {
- if (!cpu_online(cpu))
- continue;
+ for_each_online_cpu(cpu) {
if (cpu_pda(cpu)->__nmi_count - counts[cpu] <= 5) {
endflag = 1;
printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n",
diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c
index 5876df1..e5f5ce79 100644
--- a/arch/x86_64/kernel/signal.c
+++ b/arch/x86_64/kernel/signal.c
@@ -443,9 +443,6 @@
if (!user_mode(regs))
return 1;
- if (try_to_freeze())
- goto no_signal;
-
if (!oldset)
oldset = ¤t->blocked;
@@ -463,7 +460,6 @@
return handle_signal(signr, &info, &ka, oldset, regs);
}
- no_signal:
/* Did we come from a system call? */
if ((long)regs->orig_rax >= 0) {
/* Restart the system call - no handlers present */
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 4cbf6d9..51f9bed 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -83,9 +83,8 @@
if (i == 0) {
seq_printf(p, " ");
- for (j=0; j<NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "CPU%d ",j);
+ for_each_online_cpu(j)
+ seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
}
@@ -98,9 +97,8 @@
#ifndef CONFIG_SMP
seq_printf(p, "%10u ", kstat_irqs(i));
#else
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
seq_printf(p, " %s", action->name);
@@ -113,9 +111,8 @@
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
} else if (i == NR_IRQS) {
seq_printf(p, "NMI: ");
- for (j = 0; j < NR_CPUS; j++)
- if (cpu_online(j))
- seq_printf(p, "%10u ", nmi_count(j));
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", nmi_count(j));
seq_putc(p, '\n');
seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
}
diff --git a/arch/xtensa/platform-iss/console.c b/arch/xtensa/platform-iss/console.c
index 94fdfe4..2a580ef 100644
--- a/arch/xtensa/platform-iss/console.c
+++ b/arch/xtensa/platform-iss/console.c
@@ -31,10 +31,6 @@
#include <linux/tty.h>
#include <linux/tty_flip.h>
-#ifdef SERIAL_INLINE
-#define _INLINE_ inline
-#endif
-
#define SERIAL_MAX_NUM_LINES 1
#define SERIAL_TIMER_VALUE (20 * HZ)
diff --git a/block/ioctl.c b/block/ioctl.c
index e110949..35fdb7d 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -42,9 +42,9 @@
return -EINVAL;
}
/* partition number in use? */
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
if (disk->part[part - 1]) {
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return -EBUSY;
}
/* overlap? */
@@ -55,13 +55,13 @@
continue;
if (!(start+length <= s->start_sect ||
start >= s->start_sect + s->nr_sects)) {
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return -EBUSY;
}
}
/* all seems OK */
add_partition(disk, part, start, length);
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return 0;
case BLKPG_DEL_PARTITION:
if (!disk->part[part-1])
@@ -71,9 +71,9 @@
bdevp = bdget_disk(disk, part);
if (!bdevp)
return -ENOMEM;
- down(&bdevp->bd_sem);
+ mutex_lock(&bdevp->bd_mutex);
if (bdevp->bd_openers) {
- up(&bdevp->bd_sem);
+ mutex_unlock(&bdevp->bd_mutex);
bdput(bdevp);
return -EBUSY;
}
@@ -81,10 +81,10 @@
fsync_bdev(bdevp);
invalidate_bdev(bdevp, 0);
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
delete_partition(disk, part);
- up(&bdev->bd_sem);
- up(&bdevp->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
+ mutex_unlock(&bdevp->bd_mutex);
bdput(bdevp);
return 0;
@@ -102,10 +102,10 @@
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if (down_trylock(&bdev->bd_sem))
+ if (!mutex_trylock(&bdev->bd_mutex))
return -EBUSY;
res = rescan_partitions(disk, bdev);
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return res;
}
diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c
index 8660779..bdb6066 100644
--- a/drivers/base/power/suspend.c
+++ b/drivers/base/power/suspend.c
@@ -8,6 +8,7 @@
*
*/
+#include <linux/vt_kern.h>
#include <linux/device.h>
#include "../base.h"
#include "power.h"
@@ -62,7 +63,6 @@
return error;
}
-
/**
* device_suspend - Save state and stop all devices in system.
* @state: Power state to put each device in.
@@ -82,6 +82,9 @@
{
int error = 0;
+ if (!is_console_suspend_safe())
+ return -EINVAL;
+
down(&dpm_sem);
down(&dpm_list_sem);
while (!list_empty(&dpm_active) && error == 0) {
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index cf39cf9..e29b892 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3268,8 +3268,8 @@
unregister_blkdev(hba[i]->major, hba[i]->devname);
clean1:
release_io_mem(hba[i]);
- free_hba(i);
hba[i]->busy_initializing = 0;
+ free_hba(i);
return(-1);
}
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index d23b543..fb2d0be 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -179,6 +179,7 @@
#include <linux/devfs_fs_kernel.h>
#include <linux/platform_device.h>
#include <linux/buffer_head.h> /* for invalidate_buffers() */
+#include <linux/mutex.h>
/*
* PS/2 floppies have much slower step rates than regular floppies.
@@ -413,7 +414,7 @@
static struct timer_list motor_off_timer[N_DRIVE];
static struct gendisk *disks[N_DRIVE];
static struct block_device *opened_bdev[N_DRIVE];
-static DECLARE_MUTEX(open_lock);
+static DEFINE_MUTEX(open_lock);
static struct floppy_raw_cmd *raw_cmd, default_raw_cmd;
/*
@@ -3333,7 +3334,7 @@
if (type) {
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- down(&open_lock);
+ mutex_lock(&open_lock);
LOCK_FDC(drive, 1);
floppy_type[type] = *g;
floppy_type[type].name = "user format";
@@ -3347,7 +3348,7 @@
continue;
__invalidate_device(bdev);
}
- up(&open_lock);
+ mutex_unlock(&open_lock);
} else {
int oldStretch;
LOCK_FDC(drive, 1);
@@ -3674,7 +3675,7 @@
{
int drive = (long)inode->i_bdev->bd_disk->private_data;
- down(&open_lock);
+ mutex_lock(&open_lock);
if (UDRS->fd_ref < 0)
UDRS->fd_ref = 0;
else if (!UDRS->fd_ref--) {
@@ -3684,7 +3685,7 @@
if (!UDRS->fd_ref)
opened_bdev[drive] = NULL;
floppy_release_irq_and_dma();
- up(&open_lock);
+ mutex_unlock(&open_lock);
return 0;
}
@@ -3702,7 +3703,7 @@
char *tmp;
filp->private_data = (void *)0;
- down(&open_lock);
+ mutex_lock(&open_lock);
old_dev = UDRS->fd_device;
if (opened_bdev[drive] && opened_bdev[drive] != inode->i_bdev)
goto out2;
@@ -3785,7 +3786,7 @@
if ((filp->f_mode & 2) && !(UTESTF(FD_DISK_WRITABLE)))
goto out;
}
- up(&open_lock);
+ mutex_unlock(&open_lock);
return 0;
out:
if (UDRS->fd_ref < 0)
@@ -3796,7 +3797,7 @@
opened_bdev[drive] = NULL;
floppy_release_irq_and_dma();
out2:
- up(&open_lock);
+ mutex_unlock(&open_lock);
return res;
}
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 0010704..74bf025 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1144,7 +1144,7 @@
struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
int err;
- down(&lo->lo_ctl_mutex);
+ mutex_lock(&lo->lo_ctl_mutex);
switch (cmd) {
case LOOP_SET_FD:
err = loop_set_fd(lo, file, inode->i_bdev, arg);
@@ -1170,7 +1170,7 @@
default:
err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL;
}
- up(&lo->lo_ctl_mutex);
+ mutex_unlock(&lo->lo_ctl_mutex);
return err;
}
@@ -1178,9 +1178,9 @@
{
struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
- down(&lo->lo_ctl_mutex);
+ mutex_lock(&lo->lo_ctl_mutex);
lo->lo_refcnt++;
- up(&lo->lo_ctl_mutex);
+ mutex_unlock(&lo->lo_ctl_mutex);
return 0;
}
@@ -1189,9 +1189,9 @@
{
struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
- down(&lo->lo_ctl_mutex);
+ mutex_lock(&lo->lo_ctl_mutex);
--lo->lo_refcnt;
- up(&lo->lo_ctl_mutex);
+ mutex_unlock(&lo->lo_ctl_mutex);
return 0;
}
@@ -1233,12 +1233,12 @@
xfer_funcs[n] = NULL;
for (lo = &loop_dev[0]; lo < &loop_dev[max_loop]; lo++) {
- down(&lo->lo_ctl_mutex);
+ mutex_lock(&lo->lo_ctl_mutex);
if (lo->lo_encryption == xfer)
loop_release_xfer(lo);
- up(&lo->lo_ctl_mutex);
+ mutex_unlock(&lo->lo_ctl_mutex);
}
return 0;
@@ -1285,7 +1285,7 @@
lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
if (!lo->lo_queue)
goto out_mem4;
- init_MUTEX(&lo->lo_ctl_mutex);
+ mutex_init(&lo->lo_ctl_mutex);
init_completion(&lo->lo_done);
init_completion(&lo->lo_bh_done);
lo->lo_number = i;
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 6997d8e..a9bde30 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -459,9 +459,9 @@
req->errors = 0;
spin_unlock_irq(q->queue_lock);
- down(&lo->tx_lock);
+ mutex_lock(&lo->tx_lock);
if (unlikely(!lo->sock)) {
- up(&lo->tx_lock);
+ mutex_unlock(&lo->tx_lock);
printk(KERN_ERR "%s: Attempted send on closed socket\n",
lo->disk->disk_name);
req->errors++;
@@ -484,7 +484,7 @@
}
lo->active_req = NULL;
- up(&lo->tx_lock);
+ mutex_unlock(&lo->tx_lock);
wake_up_all(&lo->active_wq);
spin_lock_irq(q->queue_lock);
@@ -534,9 +534,9 @@
case NBD_CLEAR_SOCK:
error = 0;
- down(&lo->tx_lock);
+ mutex_lock(&lo->tx_lock);
lo->sock = NULL;
- up(&lo->tx_lock);
+ mutex_unlock(&lo->tx_lock);
file = lo->file;
lo->file = NULL;
nbd_clear_que(lo);
@@ -590,7 +590,7 @@
* FIXME: This code is duplicated from sys_shutdown, but
* there should be a more generic interface rather than
* calling socket ops directly here */
- down(&lo->tx_lock);
+ mutex_lock(&lo->tx_lock);
if (lo->sock) {
printk(KERN_WARNING "%s: shutting down socket\n",
lo->disk->disk_name);
@@ -598,7 +598,7 @@
SEND_SHUTDOWN|RCV_SHUTDOWN);
lo->sock = NULL;
}
- up(&lo->tx_lock);
+ mutex_unlock(&lo->tx_lock);
file = lo->file;
lo->file = NULL;
nbd_clear_que(lo);
@@ -683,7 +683,7 @@
nbd_dev[i].flags = 0;
spin_lock_init(&nbd_dev[i].queue_lock);
INIT_LIST_HEAD(&nbd_dev[i].queue_head);
- init_MUTEX(&nbd_dev[i].tx_lock);
+ mutex_init(&nbd_dev[i].tx_lock);
init_waitqueue_head(&nbd_dev[i].active_wq);
nbd_dev[i].blksize = 1024;
nbd_dev[i].bytesize = 0x7ffffc00ULL << 10; /* 2TB */
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 476a5b5..1d261f9 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -56,6 +56,7 @@
#include <linux/seq_file.h>
#include <linux/miscdevice.h>
#include <linux/suspend.h>
+#include <linux/mutex.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/scsi.h>
@@ -81,7 +82,7 @@
static struct pktcdvd_device *pkt_devs[MAX_WRITERS];
static struct proc_dir_entry *pkt_proc;
static int pkt_major;
-static struct semaphore ctl_mutex; /* Serialize open/close/setup/teardown */
+static struct mutex ctl_mutex; /* Serialize open/close/setup/teardown */
static mempool_t *psd_pool;
@@ -2018,7 +2019,7 @@
VPRINTK("pktcdvd: entering open\n");
- down(&ctl_mutex);
+ mutex_lock(&ctl_mutex);
pd = pkt_find_dev_from_minor(iminor(inode));
if (!pd) {
ret = -ENODEV;
@@ -2044,14 +2045,14 @@
set_blocksize(inode->i_bdev, CD_FRAMESIZE);
}
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
return 0;
out_dec:
pd->refcnt--;
out:
VPRINTK("pktcdvd: failed open (%d)\n", ret);
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
return ret;
}
@@ -2060,14 +2061,14 @@
struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data;
int ret = 0;
- down(&ctl_mutex);
+ mutex_lock(&ctl_mutex);
pd->refcnt--;
BUG_ON(pd->refcnt < 0);
if (pd->refcnt == 0) {
int flush = test_bit(PACKET_WRITABLE, &pd->flags);
pkt_release_dev(pd, flush);
}
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
return ret;
}
@@ -2596,21 +2597,21 @@
case PKT_CTRL_CMD_SETUP:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- down(&ctl_mutex);
+ mutex_lock(&ctl_mutex);
ret = pkt_setup_dev(&ctrl_cmd);
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
break;
case PKT_CTRL_CMD_TEARDOWN:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- down(&ctl_mutex);
+ mutex_lock(&ctl_mutex);
ret = pkt_remove_dev(&ctrl_cmd);
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
break;
case PKT_CTRL_CMD_STATUS:
- down(&ctl_mutex);
+ mutex_lock(&ctl_mutex);
pkt_get_status(&ctrl_cmd);
- up(&ctl_mutex);
+ mutex_unlock(&ctl_mutex);
break;
default:
return -ENOTTY;
@@ -2656,7 +2657,7 @@
goto out;
}
- init_MUTEX(&ctl_mutex);
+ mutex_init(&ctl_mutex);
pkt_proc = proc_mkdir("pktcdvd", proc_root_driver);
diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index ffd6abd..1c54f46 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -310,12 +310,12 @@
* cache
*/
error = -EBUSY;
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
if (bdev->bd_openers <= 2) {
truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
error = 0;
}
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return error;
}
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 879bbc2..a59876a 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -407,7 +407,6 @@
ENSURE(get_mcn, CDC_MCN);
ENSURE(reset, CDC_RESET);
ENSURE(audio_ioctl, CDC_PLAY_AUDIO);
- ENSURE(dev_ioctl, CDC_IOCTLS);
ENSURE(generic_packet, CDC_GENERIC_PACKET);
cdi->mc_flags = 0;
cdo->n_minors = 0;
@@ -2196,395 +2195,586 @@
return cdrom_read_cdda_old(cdi, ubuf, lba, nframes);
}
-/* Just about every imaginable ioctl is supported in the Uniform layer
- * these days. ATAPI / SCSI specific code now mainly resides in
- * mmc_ioct().
- */
-int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
- struct inode *ip, unsigned int cmd, unsigned long arg)
+static int cdrom_ioctl_multisession(struct cdrom_device_info *cdi,
+ void __user *argp)
{
- struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_multisession ms_info;
+ u8 requested_format;
int ret;
- /* Try the generic SCSI command ioctl's first.. */
- ret = scsi_cmd_ioctl(file, ip->i_bdev->bd_disk, cmd, (void __user *)arg);
- if (ret != -ENOTTY)
+ cdinfo(CD_DO_IOCTL, "entering CDROMMULTISESSION\n");
+
+ if (!(cdi->ops->capability & CDC_MULTI_SESSION))
+ return -ENOSYS;
+
+ if (copy_from_user(&ms_info, argp, sizeof(ms_info)))
+ return -EFAULT;
+
+ requested_format = ms_info.addr_format;
+ if (requested_format != CDROM_MSF && requested_format != CDROM_LBA)
+ return -EINVAL;
+ ms_info.addr_format = CDROM_LBA;
+
+ ret = cdi->ops->get_last_session(cdi, &ms_info);
+ if (ret)
return ret;
- /* the first few commands do not deal with audio drive_info, but
- only with routines in cdrom device operations. */
- switch (cmd) {
- case CDROMMULTISESSION: {
- struct cdrom_multisession ms_info;
- u_char requested_format;
- cdinfo(CD_DO_IOCTL, "entering CDROMMULTISESSION\n");
- if (!(cdo->capability & CDC_MULTI_SESSION))
- return -ENOSYS;
- IOCTL_IN(arg, struct cdrom_multisession, ms_info);
- requested_format = ms_info.addr_format;
- if (!((requested_format == CDROM_MSF) ||
- (requested_format == CDROM_LBA)))
- return -EINVAL;
- ms_info.addr_format = CDROM_LBA;
- if ((ret=cdo->get_last_session(cdi, &ms_info)))
+ sanitize_format(&ms_info.addr, &ms_info.addr_format, requested_format);
+
+ if (copy_to_user(argp, &ms_info, sizeof(ms_info)))
+ return -EFAULT;
+
+ cdinfo(CD_DO_IOCTL, "CDROMMULTISESSION successful\n");
+ return 0;
+}
+
+static int cdrom_ioctl_eject(struct cdrom_device_info *cdi)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROMEJECT\n");
+
+ if (!CDROM_CAN(CDC_OPEN_TRAY))
+ return -ENOSYS;
+ if (cdi->use_count != 1 || keeplocked)
+ return -EBUSY;
+ if (CDROM_CAN(CDC_LOCK)) {
+ int ret = cdi->ops->lock_door(cdi, 0);
+ if (ret)
return ret;
- sanitize_format(&ms_info.addr, &ms_info.addr_format,
- requested_format);
- IOCTL_OUT(arg, struct cdrom_multisession, ms_info);
- cdinfo(CD_DO_IOCTL, "CDROMMULTISESSION successful\n");
- return 0;
- }
+ }
- case CDROMEJECT: {
- cdinfo(CD_DO_IOCTL, "entering CDROMEJECT\n");
- if (!CDROM_CAN(CDC_OPEN_TRAY))
- return -ENOSYS;
- if (cdi->use_count != 1 || keeplocked)
- return -EBUSY;
- if (CDROM_CAN(CDC_LOCK))
- if ((ret=cdo->lock_door(cdi, 0)))
- return ret;
+ return cdi->ops->tray_move(cdi, 1);
+}
- return cdo->tray_move(cdi, 1);
- }
+static int cdrom_ioctl_closetray(struct cdrom_device_info *cdi)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROMCLOSETRAY\n");
- case CDROMCLOSETRAY: {
- cdinfo(CD_DO_IOCTL, "entering CDROMCLOSETRAY\n");
- if (!CDROM_CAN(CDC_CLOSE_TRAY))
- return -ENOSYS;
- return cdo->tray_move(cdi, 0);
- }
+ if (!CDROM_CAN(CDC_CLOSE_TRAY))
+ return -ENOSYS;
+ return cdi->ops->tray_move(cdi, 0);
+}
- case CDROMEJECT_SW: {
- cdinfo(CD_DO_IOCTL, "entering CDROMEJECT_SW\n");
- if (!CDROM_CAN(CDC_OPEN_TRAY))
- return -ENOSYS;
- if (keeplocked)
- return -EBUSY;
- cdi->options &= ~(CDO_AUTO_CLOSE | CDO_AUTO_EJECT);
- if (arg)
- cdi->options |= CDO_AUTO_CLOSE | CDO_AUTO_EJECT;
- return 0;
- }
+static int cdrom_ioctl_eject_sw(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROMEJECT_SW\n");
- case CDROM_MEDIA_CHANGED: {
- struct cdrom_changer_info *info;
- int changed;
+ if (!CDROM_CAN(CDC_OPEN_TRAY))
+ return -ENOSYS;
+ if (keeplocked)
+ return -EBUSY;
- cdinfo(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED\n");
- if (!CDROM_CAN(CDC_MEDIA_CHANGED))
- return -ENOSYS;
+ cdi->options &= ~(CDO_AUTO_CLOSE | CDO_AUTO_EJECT);
+ if (arg)
+ cdi->options |= CDO_AUTO_CLOSE | CDO_AUTO_EJECT;
+ return 0;
+}
- /* cannot select disc or select current disc */
- if (!CDROM_CAN(CDC_SELECT_DISC) || arg == CDSL_CURRENT)
- return media_changed(cdi, 1);
+static int cdrom_ioctl_media_changed(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ struct cdrom_changer_info *info;
+ int ret;
- if ((unsigned int)arg >= cdi->capacity)
- return -EINVAL;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED\n");
- info = kmalloc(sizeof(*info), GFP_KERNEL);
- if (!info)
- return -ENOMEM;
+ if (!CDROM_CAN(CDC_MEDIA_CHANGED))
+ return -ENOSYS;
- if ((ret = cdrom_read_mech_status(cdi, info))) {
- kfree(info);
- return ret;
- }
+ /* cannot select disc or select current disc */
+ if (!CDROM_CAN(CDC_SELECT_DISC) || arg == CDSL_CURRENT)
+ return media_changed(cdi, 1);
- changed = info->slots[arg].change;
- kfree(info);
- return changed;
- }
+ if ((unsigned int)arg >= cdi->capacity)
+ return -EINVAL;
- case CDROM_SET_OPTIONS: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS\n");
- /* options need to be in sync with capability. too late for
- that, so we have to check each one separately... */
- switch (arg) {
- case CDO_USE_FFLAGS:
- case CDO_CHECK_TYPE:
- break;
- case CDO_LOCK:
- if (!CDROM_CAN(CDC_LOCK))
- return -ENOSYS;
- break;
- case 0:
- return cdi->options;
- /* default is basically CDO_[AUTO_CLOSE|AUTO_EJECT] */
- default:
- if (!CDROM_CAN(arg))
- return -ENOSYS;
- }
- cdi->options |= (int) arg;
- return cdi->options;
- }
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
- case CDROM_CLEAR_OPTIONS: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS\n");
- cdi->options &= ~(int) arg;
- return cdi->options;
- }
+ ret = cdrom_read_mech_status(cdi, info);
+ if (!ret)
+ ret = info->slots[arg].change;
+ kfree(info);
+ return ret;
+}
- case CDROM_SELECT_SPEED: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED\n");
- if (!CDROM_CAN(CDC_SELECT_SPEED))
- return -ENOSYS;
- return cdo->select_speed(cdi, arg);
- }
+static int cdrom_ioctl_set_options(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS\n");
- case CDROM_SELECT_DISC: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_DISC\n");
- if (!CDROM_CAN(CDC_SELECT_DISC))
- return -ENOSYS;
-
- if ((arg != CDSL_CURRENT) && (arg != CDSL_NONE))
- if ((int)arg >= cdi->capacity)
- return -EINVAL;
-
- /* cdo->select_disc is a hook to allow a driver-specific
- * way of seleting disc. However, since there is no
- * equiv hook for cdrom_slot_status this may not
- * actually be useful...
- */
- if (cdo->select_disc != NULL)
- return cdo->select_disc(cdi, arg);
-
- /* no driver specific select_disc(), call our own */
- cdinfo(CD_CHANGER, "Using generic cdrom_select_disc()\n");
- return cdrom_select_disc(cdi, arg);
- }
-
- case CDROMRESET: {
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- cdinfo(CD_DO_IOCTL, "entering CDROM_RESET\n");
- if (!CDROM_CAN(CDC_RESET))
- return -ENOSYS;
- invalidate_bdev(ip->i_bdev, 0);
- return cdo->reset(cdi);
- }
-
- case CDROM_LOCKDOOR: {
- cdinfo(CD_DO_IOCTL, "%socking door.\n", arg ? "L" : "Unl");
+ /*
+ * Options need to be in sync with capability.
+ * Too late for that, so we have to check each one separately.
+ */
+ switch (arg) {
+ case CDO_USE_FFLAGS:
+ case CDO_CHECK_TYPE:
+ break;
+ case CDO_LOCK:
if (!CDROM_CAN(CDC_LOCK))
- return -EDRIVE_CANT_DO_THIS;
- keeplocked = arg ? 1 : 0;
- /* don't unlock the door on multiple opens,but allow root
- * to do so */
- if ((cdi->use_count != 1) && !arg && !capable(CAP_SYS_ADMIN))
- return -EBUSY;
- return cdo->lock_door(cdi, arg);
- }
+ return -ENOSYS;
+ break;
+ case 0:
+ return cdi->options;
+ /* default is basically CDO_[AUTO_CLOSE|AUTO_EJECT] */
+ default:
+ if (!CDROM_CAN(arg))
+ return -ENOSYS;
+ }
+ cdi->options |= (int) arg;
+ return cdi->options;
+}
- case CDROM_DEBUG: {
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- cdinfo(CD_DO_IOCTL, "%sabling debug.\n", arg ? "En" : "Dis");
- debug = arg ? 1 : 0;
- return debug;
- }
+static int cdrom_ioctl_clear_options(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS\n");
- case CDROM_GET_CAPABILITY: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY\n");
- return (cdo->capability & ~cdi->mask);
- }
+ cdi->options &= ~(int) arg;
+ return cdi->options;
+}
-/* The following function is implemented, although very few audio
+static int cdrom_ioctl_select_speed(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED\n");
+
+ if (!CDROM_CAN(CDC_SELECT_SPEED))
+ return -ENOSYS;
+ return cdi->ops->select_speed(cdi, arg);
+}
+
+static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_DISC\n");
+
+ if (!CDROM_CAN(CDC_SELECT_DISC))
+ return -ENOSYS;
+
+ if (arg != CDSL_CURRENT && arg != CDSL_NONE) {
+ if ((int)arg >= cdi->capacity)
+ return -EINVAL;
+ }
+
+ /*
+ * ->select_disc is a hook to allow a driver-specific way of
+ * seleting disc. However, since there is no equivalent hook for
+ * cdrom_slot_status this may not actually be useful...
+ */
+ if (cdi->ops->select_disc)
+ return cdi->ops->select_disc(cdi, arg);
+
+ cdinfo(CD_CHANGER, "Using generic cdrom_select_disc()\n");
+ return cdrom_select_disc(cdi, arg);
+}
+
+static int cdrom_ioctl_reset(struct cdrom_device_info *cdi,
+ struct block_device *bdev)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_RESET\n");
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ if (!CDROM_CAN(CDC_RESET))
+ return -ENOSYS;
+ invalidate_bdev(bdev, 0);
+ return cdi->ops->reset(cdi);
+}
+
+static int cdrom_ioctl_lock_door(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "%socking door.\n", arg ? "L" : "Unl");
+
+ if (!CDROM_CAN(CDC_LOCK))
+ return -EDRIVE_CANT_DO_THIS;
+
+ keeplocked = arg ? 1 : 0;
+
+ /*
+ * Don't unlock the door on multiple opens by default, but allow
+ * root to do so.
+ */
+ if (cdi->use_count != 1 && !arg && !capable(CAP_SYS_ADMIN))
+ return -EBUSY;
+ return cdi->ops->lock_door(cdi, arg);
+}
+
+static int cdrom_ioctl_debug(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "%sabling debug.\n", arg ? "En" : "Dis");
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ debug = arg ? 1 : 0;
+ return debug;
+}
+
+static int cdrom_ioctl_get_capability(struct cdrom_device_info *cdi)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY\n");
+ return (cdi->ops->capability & ~cdi->mask);
+}
+
+/*
+ * The following function is implemented, although very few audio
* discs give Universal Product Code information, which should just be
* the Medium Catalog Number on the box. Note, that the way the code
* is written on the CD is /not/ uniform across all discs!
*/
- case CDROM_GET_MCN: {
- struct cdrom_mcn mcn;
- cdinfo(CD_DO_IOCTL, "entering CDROM_GET_MCN\n");
- if (!(cdo->capability & CDC_MCN))
- return -ENOSYS;
- if ((ret=cdo->get_mcn(cdi, &mcn)))
- return ret;
- IOCTL_OUT(arg, struct cdrom_mcn, mcn);
- cdinfo(CD_DO_IOCTL, "CDROM_GET_MCN successful\n");
- return 0;
- }
+static int cdrom_ioctl_get_mcn(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_mcn mcn;
+ int ret;
- case CDROM_DRIVE_STATUS: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS\n");
- if (!(cdo->capability & CDC_DRIVE_STATUS))
- return -ENOSYS;
- if (!CDROM_CAN(CDC_SELECT_DISC))
- return cdo->drive_status(cdi, CDSL_CURRENT);
- if ((arg == CDSL_CURRENT) || (arg == CDSL_NONE))
- return cdo->drive_status(cdi, CDSL_CURRENT);
- if (((int)arg >= cdi->capacity))
- return -EINVAL;
- return cdrom_slot_status(cdi, arg);
- }
+ cdinfo(CD_DO_IOCTL, "entering CDROM_GET_MCN\n");
- /* Ok, this is where problems start. The current interface for the
- CDROM_DISC_STATUS ioctl is flawed. It makes the false assumption
- that CDs are all CDS_DATA_1 or all CDS_AUDIO, etc. Unfortunatly,
- while this is often the case, it is also very common for CDs to
- have some tracks with data, and some tracks with audio. Just
- because I feel like it, I declare the following to be the best
- way to cope. If the CD has ANY data tracks on it, it will be
- returned as a data CD. If it has any XA tracks, I will return
- it as that. Now I could simplify this interface by combining these
- returns with the above, but this more clearly demonstrates
- the problem with the current interface. Too bad this wasn't
- designed to use bitmasks... -Erik
+ if (!(cdi->ops->capability & CDC_MCN))
+ return -ENOSYS;
+ ret = cdi->ops->get_mcn(cdi, &mcn);
+ if (ret)
+ return ret;
- Well, now we have the option CDS_MIXED: a mixed-type CD.
- User level programmers might feel the ioctl is not very useful.
- ---david
- */
- case CDROM_DISC_STATUS: {
- tracktype tracks;
- cdinfo(CD_DO_IOCTL, "entering CDROM_DISC_STATUS\n");
- cdrom_count_tracks(cdi, &tracks);
- if (tracks.error)
- return(tracks.error);
+ if (copy_to_user(argp, &mcn, sizeof(mcn)))
+ return -EFAULT;
+ cdinfo(CD_DO_IOCTL, "CDROM_GET_MCN successful\n");
+ return 0;
+}
- /* Policy mode on */
- if (tracks.audio > 0) {
- if (tracks.data==0 && tracks.cdi==0 && tracks.xa==0)
- return CDS_AUDIO;
- else
- return CDS_MIXED;
- }
- if (tracks.cdi > 0) return CDS_XA_2_2;
- if (tracks.xa > 0) return CDS_XA_2_1;
- if (tracks.data > 0) return CDS_DATA_1;
- /* Policy mode off */
+static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi,
+ unsigned long arg)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS\n");
- cdinfo(CD_WARNING,"This disc doesn't have any tracks I recognize!\n");
- return CDS_NO_INFO;
- }
+ if (!(cdi->ops->capability & CDC_DRIVE_STATUS))
+ return -ENOSYS;
+ if (!CDROM_CAN(CDC_SELECT_DISC) ||
+ (arg == CDSL_CURRENT || arg == CDSL_NONE))
+ return cdi->ops->drive_status(cdi, CDSL_CURRENT);
+ if (((int)arg >= cdi->capacity))
+ return -EINVAL;
+ return cdrom_slot_status(cdi, arg);
+}
- case CDROM_CHANGER_NSLOTS: {
- cdinfo(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS\n");
- return cdi->capacity;
- }
+/*
+ * Ok, this is where problems start. The current interface for the
+ * CDROM_DISC_STATUS ioctl is flawed. It makes the false assumption that
+ * CDs are all CDS_DATA_1 or all CDS_AUDIO, etc. Unfortunatly, while this
+ * is often the case, it is also very common for CDs to have some tracks
+ * with data, and some tracks with audio. Just because I feel like it,
+ * I declare the following to be the best way to cope. If the CD has ANY
+ * data tracks on it, it will be returned as a data CD. If it has any XA
+ * tracks, I will return it as that. Now I could simplify this interface
+ * by combining these returns with the above, but this more clearly
+ * demonstrates the problem with the current interface. Too bad this
+ * wasn't designed to use bitmasks... -Erik
+ *
+ * Well, now we have the option CDS_MIXED: a mixed-type CD.
+ * User level programmers might feel the ioctl is not very useful.
+ * ---david
+ */
+static int cdrom_ioctl_disc_status(struct cdrom_device_info *cdi)
+{
+ tracktype tracks;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROM_DISC_STATUS\n");
+
+ cdrom_count_tracks(cdi, &tracks);
+ if (tracks.error)
+ return tracks.error;
+
+ /* Policy mode on */
+ if (tracks.audio > 0) {
+ if (!tracks.data && !tracks.cdi && !tracks.xa)
+ return CDS_AUDIO;
+ else
+ return CDS_MIXED;
}
- /* use the ioctls that are implemented through the generic_packet()
- interface. this may look at bit funny, but if -ENOTTY is
- returned that particular ioctl is not implemented and we
- let it go through the device specific ones. */
+ if (tracks.cdi > 0)
+ return CDS_XA_2_2;
+ if (tracks.xa > 0)
+ return CDS_XA_2_1;
+ if (tracks.data > 0)
+ return CDS_DATA_1;
+ /* Policy mode off */
+
+ cdinfo(CD_WARNING,"This disc doesn't have any tracks I recognize!\n");
+ return CDS_NO_INFO;
+}
+
+static int cdrom_ioctl_changer_nslots(struct cdrom_device_info *cdi)
+{
+ cdinfo(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS\n");
+ return cdi->capacity;
+}
+
+static int cdrom_ioctl_get_subchnl(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_subchnl q;
+ u8 requested, back;
+ int ret;
+
+ /* cdinfo(CD_DO_IOCTL,"entering CDROMSUBCHNL\n");*/
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&q, argp, sizeof(q)))
+ return -EFAULT;
+
+ requested = q.cdsc_format;
+ if (requested != CDROM_MSF && requested != CDROM_LBA)
+ return -EINVAL;
+ q.cdsc_format = CDROM_MSF;
+
+ ret = cdi->ops->audio_ioctl(cdi, CDROMSUBCHNL, &q);
+ if (ret)
+ return ret;
+
+ back = q.cdsc_format; /* local copy */
+ sanitize_format(&q.cdsc_absaddr, &back, requested);
+ sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested);
+
+ if (copy_to_user(argp, &q, sizeof(q)))
+ return -EFAULT;
+ /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */
+ return 0;
+}
+
+static int cdrom_ioctl_read_tochdr(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_tochdr header;
+ int ret;
+
+ /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCHDR\n"); */
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&header, argp, sizeof(header)))
+ return -EFAULT;
+
+ ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header);
+ if (ret)
+ return ret;
+
+ if (copy_to_user(argp, &header, sizeof(header)))
+ return -EFAULT;
+ /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCHDR successful\n"); */
+ return 0;
+}
+
+static int cdrom_ioctl_read_tocentry(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_tocentry entry;
+ u8 requested_format;
+ int ret;
+
+ /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCENTRY\n"); */
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&entry, argp, sizeof(entry)))
+ return -EFAULT;
+
+ requested_format = entry.cdte_format;
+ if (requested_format != CDROM_MSF && requested_format != CDROM_LBA)
+ return -EINVAL;
+ /* make interface to low-level uniform */
+ entry.cdte_format = CDROM_MSF;
+ ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &entry);
+ if (ret)
+ return ret;
+ sanitize_format(&entry.cdte_addr, &entry.cdte_format, requested_format);
+
+ if (copy_to_user(argp, &entry, sizeof(entry)))
+ return -EFAULT;
+ /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCENTRY successful\n"); */
+ return 0;
+}
+
+static int cdrom_ioctl_play_msf(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_msf msf;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n");
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&msf, argp, sizeof(msf)))
+ return -EFAULT;
+ return cdi->ops->audio_ioctl(cdi, CDROMPLAYMSF, &msf);
+}
+
+static int cdrom_ioctl_play_trkind(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_ti ti;
+ int ret;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYTRKIND\n");
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&ti, argp, sizeof(ti)))
+ return -EFAULT;
+
+ ret = check_for_audio_disc(cdi, cdi->ops);
+ if (ret)
+ return ret;
+ return cdi->ops->audio_ioctl(cdi, CDROMPLAYTRKIND, &ti);
+}
+static int cdrom_ioctl_volctrl(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_volctrl volume;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROMVOLCTRL\n");
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ if (copy_from_user(&volume, argp, sizeof(volume)))
+ return -EFAULT;
+ return cdi->ops->audio_ioctl(cdi, CDROMVOLCTRL, &volume);
+}
+
+static int cdrom_ioctl_volread(struct cdrom_device_info *cdi,
+ void __user *argp)
+{
+ struct cdrom_volctrl volume;
+ int ret;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROMVOLREAD\n");
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+
+ ret = cdi->ops->audio_ioctl(cdi, CDROMVOLREAD, &volume);
+ if (ret)
+ return ret;
+
+ if (copy_to_user(argp, &volume, sizeof(volume)))
+ return -EFAULT;
+ return 0;
+}
+
+static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi,
+ unsigned int cmd)
+{
+ int ret;
+
+ cdinfo(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume)\n");
+
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ ret = check_for_audio_disc(cdi, cdi->ops);
+ if (ret)
+ return ret;
+ return cdi->ops->audio_ioctl(cdi, cmd, NULL);
+}
+
+/*
+ * Just about every imaginable ioctl is supported in the Uniform layer
+ * these days.
+ * ATAPI / SCSI specific code now mainly resides in mmc_ioctl().
+ */
+int cdrom_ioctl(struct file * file, struct cdrom_device_info *cdi,
+ struct inode *ip, unsigned int cmd, unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ int ret;
+
+ /*
+ * Try the generic SCSI command ioctl's first.
+ */
+ ret = scsi_cmd_ioctl(file, ip->i_bdev->bd_disk, cmd, argp);
+ if (ret != -ENOTTY)
+ return ret;
+
+ switch (cmd) {
+ case CDROMMULTISESSION:
+ return cdrom_ioctl_multisession(cdi, argp);
+ case CDROMEJECT:
+ return cdrom_ioctl_eject(cdi);
+ case CDROMCLOSETRAY:
+ return cdrom_ioctl_closetray(cdi);
+ case CDROMEJECT_SW:
+ return cdrom_ioctl_eject_sw(cdi, arg);
+ case CDROM_MEDIA_CHANGED:
+ return cdrom_ioctl_media_changed(cdi, arg);
+ case CDROM_SET_OPTIONS:
+ return cdrom_ioctl_set_options(cdi, arg);
+ case CDROM_CLEAR_OPTIONS:
+ return cdrom_ioctl_clear_options(cdi, arg);
+ case CDROM_SELECT_SPEED:
+ return cdrom_ioctl_select_speed(cdi, arg);
+ case CDROM_SELECT_DISC:
+ return cdrom_ioctl_select_disc(cdi, arg);
+ case CDROMRESET:
+ return cdrom_ioctl_reset(cdi, ip->i_bdev);
+ case CDROM_LOCKDOOR:
+ return cdrom_ioctl_lock_door(cdi, arg);
+ case CDROM_DEBUG:
+ return cdrom_ioctl_debug(cdi, arg);
+ case CDROM_GET_CAPABILITY:
+ return cdrom_ioctl_get_capability(cdi);
+ case CDROM_GET_MCN:
+ return cdrom_ioctl_get_mcn(cdi, argp);
+ case CDROM_DRIVE_STATUS:
+ return cdrom_ioctl_drive_status(cdi, arg);
+ case CDROM_DISC_STATUS:
+ return cdrom_ioctl_disc_status(cdi);
+ case CDROM_CHANGER_NSLOTS:
+ return cdrom_ioctl_changer_nslots(cdi);
+ }
+
+ /*
+ * Use the ioctls that are implemented through the generic_packet()
+ * interface. this may look at bit funny, but if -ENOTTY is
+ * returned that particular ioctl is not implemented and we
+ * let it go through the device specific ones.
+ */
if (CDROM_CAN(CDC_GENERIC_PACKET)) {
ret = mmc_ioctl(cdi, cmd, arg);
- if (ret != -ENOTTY) {
+ if (ret != -ENOTTY)
return ret;
- }
}
- /* note: most of the cdinfo() calls are commented out here,
- because they fill up the sys log when CD players poll
- the drive. */
+ /*
+ * Note: most of the cdinfo() calls are commented out here,
+ * because they fill up the sys log when CD players poll
+ * the drive.
+ */
switch (cmd) {
- case CDROMSUBCHNL: {
- struct cdrom_subchnl q;
- u_char requested, back;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- /* cdinfo(CD_DO_IOCTL,"entering CDROMSUBCHNL\n");*/
- IOCTL_IN(arg, struct cdrom_subchnl, q);
- requested = q.cdsc_format;
- if (!((requested == CDROM_MSF) ||
- (requested == CDROM_LBA)))
- return -EINVAL;
- q.cdsc_format = CDROM_MSF;
- if ((ret=cdo->audio_ioctl(cdi, cmd, &q)))
- return ret;
- back = q.cdsc_format; /* local copy */
- sanitize_format(&q.cdsc_absaddr, &back, requested);
- sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested);
- IOCTL_OUT(arg, struct cdrom_subchnl, q);
- /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */
- return 0;
- }
- case CDROMREADTOCHDR: {
- struct cdrom_tochdr header;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCHDR\n"); */
- IOCTL_IN(arg, struct cdrom_tochdr, header);
- if ((ret=cdo->audio_ioctl(cdi, cmd, &header)))
- return ret;
- IOCTL_OUT(arg, struct cdrom_tochdr, header);
- /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCHDR successful\n"); */
- return 0;
- }
- case CDROMREADTOCENTRY: {
- struct cdrom_tocentry entry;
- u_char requested_format;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCENTRY\n"); */
- IOCTL_IN(arg, struct cdrom_tocentry, entry);
- requested_format = entry.cdte_format;
- if (!((requested_format == CDROM_MSF) ||
- (requested_format == CDROM_LBA)))
- return -EINVAL;
- /* make interface to low-level uniform */
- entry.cdte_format = CDROM_MSF;
- if ((ret=cdo->audio_ioctl(cdi, cmd, &entry)))
- return ret;
- sanitize_format(&entry.cdte_addr,
- &entry.cdte_format, requested_format);
- IOCTL_OUT(arg, struct cdrom_tocentry, entry);
- /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCENTRY successful\n"); */
- return 0;
- }
- case CDROMPLAYMSF: {
- struct cdrom_msf msf;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n");
- IOCTL_IN(arg, struct cdrom_msf, msf);
- return cdo->audio_ioctl(cdi, cmd, &msf);
- }
- case CDROMPLAYTRKIND: {
- struct cdrom_ti ti;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- cdinfo(CD_DO_IOCTL, "entering CDROMPLAYTRKIND\n");
- IOCTL_IN(arg, struct cdrom_ti, ti);
- CHECKAUDIO;
- return cdo->audio_ioctl(cdi, cmd, &ti);
- }
- case CDROMVOLCTRL: {
- struct cdrom_volctrl volume;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- cdinfo(CD_DO_IOCTL, "entering CDROMVOLCTRL\n");
- IOCTL_IN(arg, struct cdrom_volctrl, volume);
- return cdo->audio_ioctl(cdi, cmd, &volume);
- }
- case CDROMVOLREAD: {
- struct cdrom_volctrl volume;
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- cdinfo(CD_DO_IOCTL, "entering CDROMVOLREAD\n");
- if ((ret=cdo->audio_ioctl(cdi, cmd, &volume)))
- return ret;
- IOCTL_OUT(arg, struct cdrom_volctrl, volume);
- return 0;
- }
+ case CDROMSUBCHNL:
+ return cdrom_ioctl_get_subchnl(cdi, argp);
+ case CDROMREADTOCHDR:
+ return cdrom_ioctl_read_tochdr(cdi, argp);
+ case CDROMREADTOCENTRY:
+ return cdrom_ioctl_read_tocentry(cdi, argp);
+ case CDROMPLAYMSF:
+ return cdrom_ioctl_play_msf(cdi, argp);
+ case CDROMPLAYTRKIND:
+ return cdrom_ioctl_play_trkind(cdi, argp);
+ case CDROMVOLCTRL:
+ return cdrom_ioctl_volctrl(cdi, argp);
+ case CDROMVOLREAD:
+ return cdrom_ioctl_volread(cdi, argp);
case CDROMSTART:
case CDROMSTOP:
case CDROMPAUSE:
- case CDROMRESUME: {
- if (!CDROM_CAN(CDC_PLAY_AUDIO))
- return -ENOSYS;
- cdinfo(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume)\n");
- CHECKAUDIO;
- return cdo->audio_ioctl(cdi, cmd, NULL);
- }
- } /* switch */
+ case CDROMRESUME:
+ return cdrom_ioctl_audioctl(cdi, cmd);
+ }
- /* do the device specific ioctls */
- if (CDROM_CAN(CDC_IOCTLS))
- return cdo->dev_ioctl(cdi, cmd, arg);
-
return -ENOSYS;
}
diff --git a/drivers/cdrom/cdu31a.c b/drivers/cdrom/cdu31a.c
index 378e88d..72ffd64 100644
--- a/drivers/cdrom/cdu31a.c
+++ b/drivers/cdrom/cdu31a.c
@@ -2668,7 +2668,7 @@
return retval;
}
-static int scd_dev_ioctl(struct cdrom_device_info *cdi,
+static int scd_read_audio(struct cdrom_device_info *cdi,
unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *)arg;
@@ -2894,11 +2894,10 @@
.get_mcn = scd_get_mcn,
.reset = scd_reset,
.audio_ioctl = scd_audio_ioctl,
- .dev_ioctl = scd_dev_ioctl,
.capability = CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK |
CDC_SELECT_SPEED | CDC_MULTI_SESSION |
CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO |
- CDC_RESET | CDC_IOCTLS | CDC_DRIVE_STATUS,
+ CDC_RESET | CDC_DRIVE_STATUS,
.n_minors = 1,
};
@@ -2936,6 +2935,9 @@
case CDROMCLOSETRAY:
retval = scd_tray_move(&scd_info, 0);
break;
+ case CDROMREADAUDIO:
+ retval = scd_read_audio(&scd_info, CDROMREADAUDIO, arg);
+ break;
default:
retval = cdrom_ioctl(file, &scd_info, inode, cmd, arg);
}
diff --git a/drivers/cdrom/cm206.c b/drivers/cdrom/cm206.c
index ce127f7..fad27a8 100644
--- a/drivers/cdrom/cm206.c
+++ b/drivers/cdrom/cm206.c
@@ -1157,32 +1157,6 @@
}
}
-/* Ioctl. These ioctls are specific to the cm206 driver. I have made
- some driver statistics accessible through ioctl calls.
- */
-
-static int cm206_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
- unsigned long arg)
-{
- switch (cmd) {
-#ifdef STATISTICS
- case CM206CTL_GET_STAT:
- if (arg >= NR_STATS)
- return -EINVAL;
- else
- return cd->stats[arg];
- case CM206CTL_GET_LAST_STAT:
- if (arg >= NR_STATS)
- return -EINVAL;
- else
- return cd->last_stat[arg];
-#endif
- default:
- debug(("Unknown ioctl call 0x%x\n", cmd));
- return -EINVAL;
- }
-}
-
static int cm206_media_changed(struct cdrom_device_info *cdi, int disc_nr)
{
if (cd != NULL) {
@@ -1321,11 +1295,10 @@
.get_mcn = cm206_get_upc,
.reset = cm206_reset,
.audio_ioctl = cm206_audio_ioctl,
- .dev_ioctl = cm206_ioctl,
.capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
CDC_MCN | CDC_PLAY_AUDIO | CDC_SELECT_SPEED |
- CDC_IOCTLS | CDC_DRIVE_STATUS,
+ CDC_DRIVE_STATUS,
.n_minors = 1,
};
@@ -1350,6 +1323,21 @@
static int cm206_block_ioctl(struct inode *inode, struct file *file,
unsigned cmd, unsigned long arg)
{
+ switch (cmd) {
+#ifdef STATISTICS
+ case CM206CTL_GET_STAT:
+ if (arg >= NR_STATS)
+ return -EINVAL;
+ return cd->stats[arg];
+ case CM206CTL_GET_LAST_STAT:
+ if (arg >= NR_STATS)
+ return -EINVAL;
+ return cd->last_stat[arg];
+#endif
+ default:
+ break;
+ }
+
return cdrom_ioctl(file, &cm206_info, inode, cmd, arg);
}
diff --git a/drivers/cdrom/sbpcd.c b/drivers/cdrom/sbpcd.c
index 466e9c2..4760f51 100644
--- a/drivers/cdrom/sbpcd.c
+++ b/drivers/cdrom/sbpcd.c
@@ -4160,17 +4160,897 @@
return 0;
}
-/*==========================================================================*/
-/*==========================================================================*/
-/*
- * ioctl support
- */
-static int sbpcd_dev_ioctl(struct cdrom_device_info *cdi, u_int cmd,
- u_long arg)
+static int sbpcd_audio_ioctl(struct cdrom_device_info *cdi, u_int cmd,
+ void * arg)
{
struct sbpcd_drive *p = cdi->handle;
- int i;
+ int i, st, j;
+ msg(DBG_IO2,"ioctl(%s, 0x%08lX, 0x%08p)\n", cdi->name, cmd, arg);
+ if (p->drv_id==-1) {
+ msg(DBG_INF, "ioctl: bad device: %s\n", cdi->name);
+ return (-ENXIO); /* no such drive */
+ }
+ down(&ioctl_read_sem);
+ if (p != current_drive)
+ switch_drive(p);
+
+ msg(DBG_IO2,"ioctl: device %s, request %04X\n",cdi->name,cmd);
+ switch (cmd) /* Sun-compatible */
+ {
+
+ case CDROMPAUSE: /* Pause the drive */
+ msg(DBG_IOC,"ioctl: CDROMPAUSE entered.\n");
+ /* pause the drive unit when it is currently in PLAY mode, */
+ /* or reset the starting and ending locations when in PAUSED mode. */
+ /* If applicable, at the next stopping point it reaches */
+ /* the drive will discontinue playing. */
+ switch (current_drive->audio_state)
+ {
+ case audio_playing:
+ if (famL_drive) i=cc_ReadSubQ();
+ else i=cc_Pause_Resume(1);
+ if (i<0) RETURN_UP(-EIO);
+ if (famL_drive) i=cc_Pause_Resume(1);
+ else i=cc_ReadSubQ();
+ if (i<0) RETURN_UP(-EIO);
+ current_drive->pos_audio_start=current_drive->SubQ_run_tot;
+ current_drive->audio_state=audio_pausing;
+ RETURN_UP(0);
+ case audio_pausing:
+ i=cc_Seek(current_drive->pos_audio_start,1);
+ if (i<0) RETURN_UP(-EIO);
+ RETURN_UP(0);
+ default:
+ RETURN_UP(-EINVAL);
+ }
+
+ case CDROMRESUME: /* resume paused audio play */
+ msg(DBG_IOC,"ioctl: CDROMRESUME entered.\n");
+ /* resume playing audio tracks when a previous PLAY AUDIO call has */
+ /* been paused with a PAUSE command. */
+ /* It will resume playing from the location saved in SubQ_run_tot. */
+ if (current_drive->audio_state!=audio_pausing) RETURN_UP(-EINVAL);
+ if (famL_drive)
+ i=cc_PlayAudio(current_drive->pos_audio_start,
+ current_drive->pos_audio_end);
+ else i=cc_Pause_Resume(3);
+ if (i<0) RETURN_UP(-EIO);
+ current_drive->audio_state=audio_playing;
+ RETURN_UP(0);
+
+ case CDROMPLAYMSF:
+ msg(DBG_IOC,"ioctl: CDROMPLAYMSF entered.\n");
+#ifdef SAFE_MIXED
+ if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */
+ if (current_drive->audio_state==audio_playing)
+ {
+ i=cc_Pause_Resume(1);
+ if (i<0) RETURN_UP(-EIO);
+ i=cc_ReadSubQ();
+ if (i<0) RETURN_UP(-EIO);
+ current_drive->pos_audio_start=current_drive->SubQ_run_tot;
+ i=cc_Seek(current_drive->pos_audio_start,1);
+ }
+ memcpy(&msf, (void *) arg, sizeof(struct cdrom_msf));
+ /* values come as msf-bin */
+ current_drive->pos_audio_start = (msf.cdmsf_min0<<16) |
+ (msf.cdmsf_sec0<<8) |
+ msf.cdmsf_frame0;
+ current_drive->pos_audio_end = (msf.cdmsf_min1<<16) |
+ (msf.cdmsf_sec1<<8) |
+ msf.cdmsf_frame1;
+ msg(DBG_IOX,"ioctl: CDROMPLAYMSF %08X %08X\n",
+ current_drive->pos_audio_start,current_drive->pos_audio_end);
+ i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
+ if (i<0)
+ {
+ msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
+ DriveReset();
+ current_drive->audio_state=0;
+ RETURN_UP(-EIO);
+ }
+ current_drive->audio_state=audio_playing;
+ RETURN_UP(0);
+
+ case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
+ msg(DBG_IOC,"ioctl: CDROMPLAYTRKIND entered.\n");
+#ifdef SAFE_MIXED
+ if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */
+ if (current_drive->audio_state==audio_playing)
+ {
+ msg(DBG_IOX,"CDROMPLAYTRKIND: already audio_playing.\n");
+#if 1
+ RETURN_UP(0); /* just let us play on */
+#else
+ RETURN_UP(-EINVAL); /* play on, but say "error" */
+#endif
+ }
+ memcpy(&ti,(void *) arg,sizeof(struct cdrom_ti));
+ msg(DBG_IOX,"ioctl: trk0: %d, ind0: %d, trk1:%d, ind1:%d\n",
+ ti.cdti_trk0,ti.cdti_ind0,ti.cdti_trk1,ti.cdti_ind1);
+ if (ti.cdti_trk0<current_drive->n_first_track) RETURN_UP(-EINVAL);
+ if (ti.cdti_trk0>current_drive->n_last_track) RETURN_UP(-EINVAL);
+ if (ti.cdti_trk1<ti.cdti_trk0) ti.cdti_trk1=ti.cdti_trk0;
+ if (ti.cdti_trk1>current_drive->n_last_track) ti.cdti_trk1=current_drive->n_last_track;
+ current_drive->pos_audio_start=current_drive->TocBuffer[ti.cdti_trk0].address;
+ current_drive->pos_audio_end=current_drive->TocBuffer[ti.cdti_trk1+1].address;
+ i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
+ if (i<0)
+ {
+ msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
+ DriveReset();
+ current_drive->audio_state=0;
+ RETURN_UP(-EIO);
+ }
+ current_drive->audio_state=audio_playing;
+ RETURN_UP(0);
+
+ case CDROMREADTOCHDR: /* Read the table of contents header */
+ msg(DBG_IOC,"ioctl: CDROMREADTOCHDR entered.\n");
+ tochdr.cdth_trk0=current_drive->n_first_track;
+ tochdr.cdth_trk1=current_drive->n_last_track;
+ memcpy((void *) arg, &tochdr, sizeof(struct cdrom_tochdr));
+ RETURN_UP(0);
+
+ case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
+ msg(DBG_IOC,"ioctl: CDROMREADTOCENTRY entered.\n");
+ memcpy(&tocentry, (void *) arg, sizeof(struct cdrom_tocentry));
+ i=tocentry.cdte_track;
+ if (i==CDROM_LEADOUT) i=current_drive->n_last_track+1;
+ else if (i<current_drive->n_first_track||i>current_drive->n_last_track)
+ RETURN_UP(-EINVAL);
+ tocentry.cdte_adr=current_drive->TocBuffer[i].ctl_adr&0x0F;
+ tocentry.cdte_ctrl=(current_drive->TocBuffer[i].ctl_adr>>4)&0x0F;
+ tocentry.cdte_datamode=current_drive->TocBuffer[i].format;
+ if (tocentry.cdte_format==CDROM_MSF) /* MSF-bin required */
+ {
+ tocentry.cdte_addr.msf.minute=(current_drive->TocBuffer[i].address>>16)&0x00FF;
+ tocentry.cdte_addr.msf.second=(current_drive->TocBuffer[i].address>>8)&0x00FF;
+ tocentry.cdte_addr.msf.frame=current_drive->TocBuffer[i].address&0x00FF;
+ }
+ else if (tocentry.cdte_format==CDROM_LBA) /* blk required */
+ tocentry.cdte_addr.lba=msf2blk(current_drive->TocBuffer[i].address);
+ else RETURN_UP(-EINVAL);
+ memcpy((void *) arg, &tocentry, sizeof(struct cdrom_tocentry));
+ RETURN_UP(0);
+
+ case CDROMSTOP: /* Spin down the drive */
+ msg(DBG_IOC,"ioctl: CDROMSTOP entered.\n");
+#ifdef SAFE_MIXED
+ if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */
+ i=cc_Pause_Resume(1);
+ current_drive->audio_state=0;
+#if 0
+ cc_DriveReset();
+#endif
+ RETURN_UP(i);
+
+ case CDROMSTART: /* Spin up the drive */
+ msg(DBG_IOC,"ioctl: CDROMSTART entered.\n");
+ cc_SpinUp();
+ current_drive->audio_state=0;
+ RETURN_UP(0);
+
+ case CDROMVOLCTRL: /* Volume control */
+ msg(DBG_IOC,"ioctl: CDROMVOLCTRL entered.\n");
+ memcpy(&volctrl,(char *) arg,sizeof(volctrl));
+ current_drive->vol_chan0=0;
+ current_drive->vol_ctrl0=volctrl.channel0;
+ current_drive->vol_chan1=1;
+ current_drive->vol_ctrl1=volctrl.channel1;
+ i=cc_SetVolume();
+ RETURN_UP(0);
+
+ case CDROMVOLREAD: /* read Volume settings from drive */
+ msg(DBG_IOC,"ioctl: CDROMVOLREAD entered.\n");
+ st=cc_GetVolume();
+ if (st<0) RETURN_UP(st);
+ volctrl.channel0=current_drive->vol_ctrl0;
+ volctrl.channel1=current_drive->vol_ctrl1;
+ volctrl.channel2=0;
+ volctrl.channel2=0;
+ memcpy((void *)arg,&volctrl,sizeof(volctrl));
+ RETURN_UP(0);
+
+ case CDROMSUBCHNL: /* Get subchannel info */
+ msg(DBG_IOS,"ioctl: CDROMSUBCHNL entered.\n");
+ /* Bogus, I can do better than this! --AJK
+ if ((st_spinning)||(!subq_valid)) {
+ i=cc_ReadSubQ();
+ if (i<0) RETURN_UP(-EIO);
+ }
+ */
+ i=cc_ReadSubQ();
+ if (i<0) {
+ j=cc_ReadError(); /* clear out error status from drive */
+ current_drive->audio_state=CDROM_AUDIO_NO_STATUS;
+ /* get and set the disk state here,
+ probably not the right place, but who cares!
+ It makes it work properly! --AJK */
+ if (current_drive->CD_changed==0xFF) {
+ msg(DBG_000,"Disk changed detect\n");
+ current_drive->diskstate_flags &= ~cd_size_bit;
+ }
+ RETURN_UP(-EIO);
+ }
+ if (current_drive->CD_changed==0xFF) {
+ /* reread the TOC because the disk has changed! --AJK */
+ msg(DBG_000,"Disk changed STILL detected, rereading TOC!\n");
+ i=DiskInfo();
+ if(i==0) {
+ current_drive->CD_changed=0x00; /* cd has changed, procede, */
+ RETURN_UP(-EIO); /* and get TOC, etc on next try! --AJK */
+ } else {
+ RETURN_UP(-EIO); /* we weren't ready yet! --AJK */
+ }
+ }
+ memcpy(&SC, (void *) arg, sizeof(struct cdrom_subchnl));
+ /*
+ This virtual crap is very bogus!
+ It doesn't detect when the cd is done playing audio!
+ Lets do this right with proper hardware register reading!
+ */
+ cc_ReadStatus();
+ i=ResponseStatus();
+ msg(DBG_000,"Drive Status: door_locked =%d.\n", st_door_locked);
+ msg(DBG_000,"Drive Status: door_closed =%d.\n", st_door_closed);
+ msg(DBG_000,"Drive Status: caddy_in =%d.\n", st_caddy_in);
+ msg(DBG_000,"Drive Status: disk_ok =%d.\n", st_diskok);
+ msg(DBG_000,"Drive Status: spinning =%d.\n", st_spinning);
+ msg(DBG_000,"Drive Status: busy =%d.\n", st_busy);
+ /* st_busy indicates if it's _ACTUALLY_ playing audio */
+ switch (current_drive->audio_state)
+ {
+ case audio_playing:
+ if(st_busy==0) {
+ /* CD has stopped playing audio --AJK */
+ current_drive->audio_state=audio_completed;
+ SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
+ } else {
+ SC.cdsc_audiostatus=CDROM_AUDIO_PLAY;
+ }
+ break;
+ case audio_pausing:
+ SC.cdsc_audiostatus=CDROM_AUDIO_PAUSED;
+ break;
+ case audio_completed:
+ SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
+ break;
+ default:
+ SC.cdsc_audiostatus=CDROM_AUDIO_NO_STATUS;
+ break;
+ }
+ SC.cdsc_adr=current_drive->SubQ_ctl_adr;
+ SC.cdsc_ctrl=current_drive->SubQ_ctl_adr>>4;
+ SC.cdsc_trk=bcd2bin(current_drive->SubQ_trk);
+ SC.cdsc_ind=bcd2bin(current_drive->SubQ_pnt_idx);
+ if (SC.cdsc_format==CDROM_LBA)
+ {
+ SC.cdsc_absaddr.lba=msf2blk(current_drive->SubQ_run_tot);
+ SC.cdsc_reladdr.lba=msf2blk(current_drive->SubQ_run_trk);
+ }
+ else /* not only if (SC.cdsc_format==CDROM_MSF) */
+ {
+ SC.cdsc_absaddr.msf.minute=(current_drive->SubQ_run_tot>>16)&0x00FF;
+ SC.cdsc_absaddr.msf.second=(current_drive->SubQ_run_tot>>8)&0x00FF;
+ SC.cdsc_absaddr.msf.frame=current_drive->SubQ_run_tot&0x00FF;
+ SC.cdsc_reladdr.msf.minute=(current_drive->SubQ_run_trk>>16)&0x00FF;
+ SC.cdsc_reladdr.msf.second=(current_drive->SubQ_run_trk>>8)&0x00FF;
+ SC.cdsc_reladdr.msf.frame=current_drive->SubQ_run_trk&0x00FF;
+ }
+ memcpy((void *) arg, &SC, sizeof(struct cdrom_subchnl));
+ msg(DBG_IOS,"CDROMSUBCHNL: %1X %02X %08X %08X %02X %02X %06X %06X\n",
+ SC.cdsc_format,SC.cdsc_audiostatus,
+ SC.cdsc_adr,SC.cdsc_ctrl,
+ SC.cdsc_trk,SC.cdsc_ind,
+ SC.cdsc_absaddr,SC.cdsc_reladdr);
+ RETURN_UP(0);
+
+ default:
+ msg(DBG_IOC,"ioctl: unknown function request %04X\n", cmd);
+ RETURN_UP(-EINVAL);
+ } /* end switch(cmd) */
+}
+/*==========================================================================*/
+/*
+ * Take care of the different block sizes between cdrom and Linux.
+ */
+static void sbp_transfer(struct request *req)
+{
+ long offs;
+
+ while ( (req->nr_sectors > 0) &&
+ (req->sector/4 >= current_drive->sbp_first_frame) &&
+ (req->sector/4 <= current_drive->sbp_last_frame) )
+ {
+ offs = (req->sector - current_drive->sbp_first_frame * 4) * 512;
+ memcpy(req->buffer, current_drive->sbp_buf + offs, 512);
+ req->nr_sectors--;
+ req->sector++;
+ req->buffer += 512;
+ }
+}
+/*==========================================================================*/
+/*
+ * special end_request for sbpcd to solve CURRENT==NULL bug. (GTL)
+ * GTL = Gonzalo Tornaria <tornaria@cmat.edu.uy>
+ *
+ * This is a kludge so we don't need to modify end_request.
+ * We put the req we take out after INIT_REQUEST in the requests list,
+ * so that end_request will discard it.
+ *
+ * The bug could be present in other block devices, perhaps we
+ * should modify INIT_REQUEST and end_request instead, and
+ * change every block device..
+ *
+ * Could be a race here?? Could e.g. a timer interrupt schedule() us?
+ * If so, we should copy end_request here, and do it right.. (or
+ * modify end_request and the block devices).
+ *
+ * In any case, the race here would be much small than it was, and
+ * I couldn't reproduce..
+ *
+ * The race could be: suppose CURRENT==NULL. We put our req in the list,
+ * and we are scheduled. Other process takes over, and gets into
+ * do_sbpcd_request. It sees CURRENT!=NULL (it is == to our req), so
+ * proceeds. It ends, so CURRENT is now NULL.. Now we awake somewhere in
+ * end_request, but now CURRENT==NULL... oops!
+ *
+ */
+#undef DEBUG_GTL
+
+/*==========================================================================*/
+/*
+ * I/O request routine, called from Linux kernel.
+ */
+static void do_sbpcd_request(request_queue_t * q)
+{
+ u_int block;
+ u_int nsect;
+ int status_tries, data_tries;
+ struct request *req;
+ struct sbpcd_drive *p;
+#ifdef DEBUG_GTL
+ static int xx_nr=0;
+ int xnr;
+#endif
+
+ request_loop:
+#ifdef DEBUG_GTL
+ xnr=++xx_nr;
+
+ req = elv_next_request(q);
+
+ if (!req)
+ {
+ printk( "do_sbpcd_request[%di](NULL), Pid:%d, Time:%li\n",
+ xnr, current->pid, jiffies);
+ printk( "do_sbpcd_request[%do](NULL) end 0 (null), Time:%li\n",
+ xnr, jiffies);
+ return;
+ }
+
+ printk(" do_sbpcd_request[%di](%p:%ld+%ld), Pid:%d, Time:%li\n",
+ xnr, req, req->sector, req->nr_sectors, current->pid, jiffies);
+#endif
+
+ req = elv_next_request(q); /* take out our request so no other */
+ if (!req)
+ return;
+
+ if (req -> sector == -1)
+ end_request(req, 0);
+ spin_unlock_irq(q->queue_lock);
+
+ down(&ioctl_read_sem);
+ if (rq_data_dir(elv_next_request(q)) != READ)
+ {
+ msg(DBG_INF, "bad cmd %d\n", req->cmd[0]);
+ goto err_done;
+ }
+ p = req->rq_disk->private_data;
+#if OLD_BUSY
+ while (busy_audio) sbp_sleep(HZ); /* wait a bit */
+ busy_data=1;
+#endif /* OLD_BUSY */
+
+ if (p->audio_state==audio_playing) goto err_done;
+ if (p != current_drive)
+ switch_drive(p);
+
+ block = req->sector; /* always numbered as 512-byte-pieces */
+ nsect = req->nr_sectors; /* always counted as 512-byte-pieces */
+
+ msg(DBG_BSZ,"read sector %d (%d sectors)\n", block, nsect);
+#if 0
+ msg(DBG_MUL,"read LBA %d\n", block/4);
+#endif
+
+ sbp_transfer(req);
+ /* if we satisfied the request from the buffer, we're done. */
+ if (req->nr_sectors == 0)
+ {
+#ifdef DEBUG_GTL
+ printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 2, Time:%li\n",
+ xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+ up(&ioctl_read_sem);
+ spin_lock_irq(q->queue_lock);
+ end_request(req, 1);
+ goto request_loop;
+ }
+
+#ifdef FUTURE
+ i=prepare(0,0); /* at moment not really a hassle check, but ... */
+ if (i!=0)
+ msg(DBG_INF,"\"prepare\" tells error %d -- ignored\n", i);
+#endif /* FUTURE */
+
+ if (!st_spinning) cc_SpinUp();
+
+ for (data_tries=n_retries; data_tries > 0; data_tries--)
+ {
+ for (status_tries=3; status_tries > 0; status_tries--)
+ {
+ flags_cmd_out |= f_respo3;
+ cc_ReadStatus();
+ if (sbp_status() != 0) break;
+ if (st_check) cc_ReadError();
+ sbp_sleep(1); /* wait a bit, try again */
+ }
+ if (status_tries == 0)
+ {
+ msg(DBG_INF,"sbp_status: failed after 3 tries in line %d\n", __LINE__);
+ break;
+ }
+
+ sbp_read_cmd(req);
+ sbp_sleep(0);
+ if (sbp_data(req) != 0)
+ {
+#ifdef SAFE_MIXED
+ current_drive->has_data=2; /* is really a data disk */
+#endif /* SAFE_MIXED */
+#ifdef DEBUG_GTL
+ printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 3, Time:%li\n",
+ xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+ up(&ioctl_read_sem);
+ spin_lock_irq(q->queue_lock);
+ end_request(req, 1);
+ goto request_loop;
+ }
+ }
+
+ err_done:
+#if OLD_BUSY
+ busy_data=0;
+#endif /* OLD_BUSY */
+#ifdef DEBUG_GTL
+ printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 4 (error), Time:%li\n",
+ xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+ up(&ioctl_read_sem);
+ sbp_sleep(0); /* wait a bit, try again */
+ spin_lock_irq(q->queue_lock);
+ end_request(req, 0);
+ goto request_loop;
+}
+/*==========================================================================*/
+/*
+ * build and send the READ command.
+ */
+static void sbp_read_cmd(struct request *req)
+{
+#undef OLD
+
+ int i;
+ int block;
+
+ current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1; /* purge buffer */
+ current_drive->sbp_current = 0;
+ block=req->sector/4;
+ if (block+current_drive->sbp_bufsiz <= current_drive->CDsize_frm)
+ current_drive->sbp_read_frames = current_drive->sbp_bufsiz;
+ else
+ {
+ current_drive->sbp_read_frames=current_drive->CDsize_frm-block;
+ /* avoid reading past end of data */
+ if (current_drive->sbp_read_frames < 1)
+ {
+ msg(DBG_INF,"requested frame %d, CD size %d ???\n",
+ block, current_drive->CDsize_frm);
+ current_drive->sbp_read_frames=1;
+ }
+ }
+
+ flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus | f_obey_p_check;
+ clr_cmdbuf();
+ if (famV_drive)
+ {
+ drvcmd[0]=CMDV_READ;
+ lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
+ bin2bcdx(&drvcmd[1]);
+ bin2bcdx(&drvcmd[2]);
+ bin2bcdx(&drvcmd[3]);
+ drvcmd[4]=current_drive->sbp_read_frames>>8;
+ drvcmd[5]=current_drive->sbp_read_frames&0xff;
+ drvcmd[6]=0x02; /* flag "msf-bcd" */
+ }
+ else if (fam0L_drive)
+ {
+ flags_cmd_out |= f_lopsta | f_getsta | f_bit1;
+ if (current_drive->xa_byte==0x20)
+ {
+ cmd_type=READ_M2;
+ drvcmd[0]=CMD0_READ_XA; /* "read XA frames", old drives */
+ drvcmd[1]=(block>>16)&0x0ff;
+ drvcmd[2]=(block>>8)&0x0ff;
+ drvcmd[3]=block&0x0ff;
+ drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+ drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+ }
+ else
+ {
+ drvcmd[0]=CMD0_READ; /* "read frames", old drives */
+ if (current_drive->drv_type>=drv_201)
+ {
+ lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
+ bin2bcdx(&drvcmd[1]);
+ bin2bcdx(&drvcmd[2]);
+ bin2bcdx(&drvcmd[3]);
+ }
+ else
+ {
+ drvcmd[1]=(block>>16)&0x0ff;
+ drvcmd[2]=(block>>8)&0x0ff;
+ drvcmd[3]=block&0x0ff;
+ }
+ drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+ drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+ drvcmd[6]=(current_drive->drv_type<drv_201)?0:2; /* flag "lba or msf-bcd format" */
+ }
+ }
+ else if (fam1_drive)
+ {
+ drvcmd[0]=CMD1_READ;
+ lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+ drvcmd[5]=(current_drive->sbp_read_frames>>8)&0x0ff;
+ drvcmd[6]=current_drive->sbp_read_frames&0x0ff;
+ }
+ else if (fam2_drive)
+ {
+ drvcmd[0]=CMD2_READ;
+ lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+ drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+ drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+ drvcmd[6]=0x02;
+ }
+ else if (famT_drive)
+ {
+ drvcmd[0]=CMDT_READ;
+ drvcmd[2]=(block>>24)&0x0ff;
+ drvcmd[3]=(block>>16)&0x0ff;
+ drvcmd[4]=(block>>8)&0x0ff;
+ drvcmd[5]=block&0x0ff;
+ drvcmd[7]=(current_drive->sbp_read_frames>>8)&0x0ff;
+ drvcmd[8]=current_drive->sbp_read_frames&0x0ff;
+ }
+ flags_cmd_out=f_putcmd;
+ response_count=0;
+ i=cmd_out();
+ if (i<0) msg(DBG_INF,"error giving READ command: %0d\n", i);
+ return;
+}
+/*==========================================================================*/
+/*
+ * Check the completion of the read-data command. On success, read
+ * the current_drive->sbp_bufsiz * 2048 bytes of data from the disk into buffer.
+ */
+static int sbp_data(struct request *req)
+{
+ int i=0, j=0, l, frame;
+ u_int try=0;
+ u_long timeout;
+ u_char *p;
+ u_int data_tries = 0;
+ u_int data_waits = 0;
+ u_int data_retrying = 0;
+ int error_flag;
+ int xa_count;
+ int max_latency;
+ int success;
+ int wait;
+ int duration;
+
+ error_flag=0;
+ success=0;
+#if LONG_TIMING
+ max_latency=9*HZ;
+#else
+ if (current_drive->f_multisession) max_latency=15*HZ;
+ else max_latency=5*HZ;
+#endif
+ duration=jiffies;
+ for (frame=0;frame<current_drive->sbp_read_frames&&!error_flag; frame++)
+ {
+ SBPCD_CLI;
+
+ del_timer(&data_timer);
+ data_timer.expires=jiffies+max_latency;
+ timed_out_data=0;
+ add_timer(&data_timer);
+ while (!timed_out_data)
+ {
+ if (current_drive->f_multisession) try=maxtim_data*4;
+ else try=maxtim_data;
+ msg(DBG_000,"sbp_data: CDi_status loop: try=%d.\n",try);
+ for ( ; try!=0;try--)
+ {
+ j=inb(CDi_status);
+ if (!(j&s_not_data_ready)) break;
+ if (!(j&s_not_result_ready)) break;
+ if (fam0LV_drive) if (j&s_attention) break;
+ }
+ if (!(j&s_not_data_ready)) goto data_ready;
+ if (try==0)
+ {
+ if (data_retrying == 0) data_waits++;
+ data_retrying = 1;
+ msg(DBG_000,"sbp_data: CDi_status loop: sleeping.\n");
+ sbp_sleep(1);
+ try = 1;
+ }
+ }
+ msg(DBG_INF,"sbp_data: CDi_status loop expired.\n");
+ data_ready:
+ del_timer(&data_timer);
+
+ if (timed_out_data)
+ {
+ msg(DBG_INF,"sbp_data: CDi_status timeout (timed_out_data) (%02X).\n", j);
+ error_flag++;
+ }
+ if (try==0)
+ {
+ msg(DBG_INF,"sbp_data: CDi_status timeout (try=0) (%02X).\n", j);
+ error_flag++;
+ }
+ if (!(j&s_not_result_ready))
+ {
+ msg(DBG_INF, "sbp_data: RESULT_READY where DATA_READY awaited (%02X).\n", j);
+ response_count=20;
+ j=ResponseInfo();
+ j=inb(CDi_status);
+ }
+ if (j&s_not_data_ready)
+ {
+ if ((current_drive->ored_ctl_adr&0x40)==0)
+ msg(DBG_INF, "CD contains no data tracks.\n");
+ else msg(DBG_INF, "sbp_data: DATA_READY timeout (%02X).\n", j);
+ error_flag++;
+ }
+ SBPCD_STI;
+ if (error_flag) break;
+
+ msg(DBG_000, "sbp_data: beginning to read.\n");
+ p = current_drive->sbp_buf + frame * CD_FRAMESIZE;
+ if (sbpro_type==1) OUT(CDo_sel_i_d,1);
+ if (cmd_type==READ_M2) {
+ if (do_16bit) insw(CDi_data, xa_head_buf, CD_XA_HEAD>>1);
+ else insb(CDi_data, xa_head_buf, CD_XA_HEAD);
+ }
+ if (do_16bit) insw(CDi_data, p, CD_FRAMESIZE>>1);
+ else insb(CDi_data, p, CD_FRAMESIZE);
+ if (cmd_type==READ_M2) {
+ if (do_16bit) insw(CDi_data, xa_tail_buf, CD_XA_TAIL>>1);
+ else insb(CDi_data, xa_tail_buf, CD_XA_TAIL);
+ }
+ current_drive->sbp_current++;
+ if (sbpro_type==1) OUT(CDo_sel_i_d,0);
+ if (cmd_type==READ_M2)
+ {
+ for (xa_count=0;xa_count<CD_XA_HEAD;xa_count++)
+ sprintf(&msgbuf[xa_count*3], " %02X", xa_head_buf[xa_count]);
+ msgbuf[xa_count*3]=0;
+ msg(DBG_XA1,"xa head:%s\n", msgbuf);
+ }
+ data_retrying = 0;
+ data_tries++;
+ if (data_tries >= 1000)
+ {
+ msg(DBG_INF,"sbp_data() statistics: %d waits in %d frames.\n", data_waits, data_tries);
+ data_waits = data_tries = 0;
+ }
+ }
+ duration=jiffies-duration;
+ msg(DBG_TEA,"time to read %d frames: %d jiffies .\n",frame,duration);
+ if (famT_drive)
+ {
+ wait=8;
+ do
+ {
+ if (teac==2)
+ {
+ if ((i=CDi_stat_loop_T()) == -1) break;
+ }
+ else
+ {
+ sbp_sleep(1);
+ OUT(CDo_sel_i_d,0);
+ i=inb(CDi_status);
+ }
+ if (!(i&s_not_data_ready))
+ {
+ OUT(CDo_sel_i_d,1);
+ j=0;
+ do
+ {
+ if (do_16bit) i=inw(CDi_data);
+ else i=inb(CDi_data);
+ j++;
+ i=inb(CDi_status);
+ }
+ while (!(i&s_not_data_ready));
+ msg(DBG_TEA, "==========too much data (%d bytes/words)==============.\n", j);
+ }
+ if (!(i&s_not_result_ready))
+ {
+ OUT(CDo_sel_i_d,0);
+ l=0;
+ do
+ {
+ infobuf[l++]=inb(CDi_info);
+ i=inb(CDi_status);
+ }
+ while (!(i&s_not_result_ready));
+ if (infobuf[0]==0x00) success=1;
+#if 1
+ for (j=0;j<l;j++) sprintf(&msgbuf[j*3], " %02X", infobuf[j]);
+ msgbuf[j*3]=0;
+ msg(DBG_TEA,"sbp_data info response:%s\n", msgbuf);
+#endif
+ if (infobuf[0]==0x02)
+ {
+ error_flag++;
+ do
+ {
+ ++recursion;
+ if (recursion>1) msg(DBG_TEA,"cmd_out_T READ_ERR recursion (sbp_data): %d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",recursion);
+ else msg(DBG_TEA,"sbp_data: CMDT_READ_ERR necessary.\n");
+ clr_cmdbuf();
+ drvcmd[0]=CMDT_READ_ERR;
+ j=cmd_out_T(); /* !!! recursive here !!! */
+ --recursion;
+ sbp_sleep(1);
+ }
+ while (j<0);
+ current_drive->error_state=infobuf[2];
+ current_drive->b3=infobuf[3];
+ current_drive->b4=infobuf[4];
+ }
+ break;
+ }
+ else
+ {
+#if 0
+ msg(DBG_TEA, "============= waiting for result=================.\n");
+ sbp_sleep(1);
+#endif
+ }
+ }
+ while (wait--);
+ }
+
+ if (error_flag) /* must have been spurious D_RDY or (ATTN&&!D_RDY) */
+ {
+ msg(DBG_TEA, "================error flag: %d=================.\n", error_flag);
+ msg(DBG_INF,"sbp_data: read aborted by drive.\n");
+#if 1
+ i=cc_DriveReset(); /* ugly fix to prevent a hang */
+#else
+ i=cc_ReadError();
+#endif
+ return (0);
+ }
+
+ if (fam0LV_drive)
+ {
+ SBPCD_CLI;
+ i=maxtim_data;
+ for (timeout=jiffies+HZ; time_before(jiffies, timeout); timeout--)
+ {
+ for ( ;i!=0;i--)
+ {
+ j=inb(CDi_status);
+ if (!(j&s_not_data_ready)) break;
+ if (!(j&s_not_result_ready)) break;
+ if (j&s_attention) break;
+ }
+ if (i != 0 || time_after_eq(jiffies, timeout)) break;
+ sbp_sleep(0);
+ i = 1;
+ }
+ if (i==0) msg(DBG_INF,"status timeout after READ.\n");
+ if (!(j&s_attention))
+ {
+ msg(DBG_INF,"sbp_data: timeout waiting DRV_ATTN - retrying.\n");
+ i=cc_DriveReset(); /* ugly fix to prevent a hang */
+ SBPCD_STI;
+ return (0);
+ }
+ SBPCD_STI;
+ }
+
+#if 0
+ if (!success)
+#endif
+ do
+ {
+ if (fam0LV_drive) cc_ReadStatus();
+#if 1
+ if (famT_drive) msg(DBG_TEA, "================before ResponseStatus=================.\n", i);
+#endif
+ i=ResponseStatus(); /* builds status_bits, returns orig. status (old) or faked p_success (new) */
+#if 1
+ if (famT_drive) msg(DBG_TEA, "================ResponseStatus: %d=================.\n", i);
+#endif
+ if (i<0)
+ {
+ msg(DBG_INF,"bad cc_ReadStatus after read: %02X\n", current_drive->status_bits);
+ return (0);
+ }
+ }
+ while ((fam0LV_drive)&&(!st_check)&&(!(i&p_success)));
+ if (st_check)
+ {
+ i=cc_ReadError();
+ msg(DBG_INF,"cc_ReadError was necessary after read: %d\n",i);
+ return (0);
+ }
+ if (fatal_err)
+ {
+ fatal_err=0;
+ current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1; /* purge buffer */
+ current_drive->sbp_current = 0;
+ msg(DBG_INF,"sbp_data: fatal_err - retrying.\n");
+ return (0);
+ }
+
+ current_drive->sbp_first_frame = req -> sector / 4;
+ current_drive->sbp_last_frame = current_drive->sbp_first_frame + current_drive->sbp_read_frames - 1;
+ sbp_transfer(req);
+ return (1);
+}
+/*==========================================================================*/
+
+static int sbpcd_block_open(struct inode *inode, struct file *file)
+{
+ struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+ return cdrom_open(p->sbpcd_infop, inode, file);
+}
+
+static int sbpcd_block_release(struct inode *inode, struct file *file)
+{
+ struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+ return cdrom_release(p->sbpcd_infop, file);
+}
+
+static int sbpcd_block_ioctl(struct inode *inode, struct file *file,
+ unsigned cmd, unsigned long arg)
+{
+ struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+ struct cdrom_device_info *cdi = p->sbpcd_infop;
+ int ret, i;
+
+ ret = cdrom_ioctl(file, p->sbpcd_infop, inode, cmd, arg);
+ if (ret != -ENOSYS)
+ return ret;
+
msg(DBG_IO2,"ioctl(%s, 0x%08lX, 0x%08lX)\n", cdi->name, cmd, arg);
if (p->drv_id==-1) {
msg(DBG_INF, "ioctl: bad device: %s\n", cdi->name);
@@ -4192,7 +5072,7 @@
i=DriveReset();
current_drive->audio_state=0;
RETURN_UP(i);
-
+
case CDROMREADMODE1:
msg(DBG_IOC,"ioctl: CDROMREADMODE1 requested.\n");
#ifdef SAFE_MIXED
@@ -4202,7 +5082,7 @@
cc_ModeSense();
current_drive->mode=READ_M1;
RETURN_UP(0);
-
+
case CDROMREADMODE2: /* not usable at the moment */
msg(DBG_IOC,"ioctl: CDROMREADMODE2 requested.\n");
#ifdef SAFE_MIXED
@@ -4212,14 +5092,14 @@
cc_ModeSense();
current_drive->mode=READ_M2;
RETURN_UP(0);
-
+
case CDROMAUDIOBUFSIZ: /* configure the audio buffer size */
msg(DBG_IOC,"ioctl: CDROMAUDIOBUFSIZ entered.\n");
if (current_drive->sbp_audsiz>0)
vfree(current_drive->aud_buf);
current_drive->aud_buf=NULL;
current_drive->sbp_audsiz=arg;
-
+
if (current_drive->sbp_audsiz>16)
{
current_drive->sbp_audsiz = 0;
@@ -4249,7 +5129,7 @@
u_int data_retrying = 0;
int status_tries;
int error_flag;
-
+
msg(DBG_IOC,"ioctl: CDROMREADAUDIO entered.\n");
if (fam0_drive) RETURN_UP(-EINVAL);
if (famL_drive) RETURN_UP(-EINVAL);
@@ -4257,7 +5137,7 @@
if (famT_drive) RETURN_UP(-EINVAL);
#ifdef SAFE_MIXED
if (current_drive->has_data>1) RETURN_UP(-EBUSY);
-#endif /* SAFE_MIXED */
+#endif /* SAFE_MIXED */
if (current_drive->aud_buf==NULL) RETURN_UP(-EINVAL);
if (copy_from_user(&read_audio, (void __user *)arg,
sizeof(struct cdrom_read_audio)))
@@ -4266,7 +5146,7 @@
if (!access_ok(VERIFY_WRITE, read_audio.buf,
read_audio.nframes*CD_FRAMESIZE_RAW))
RETURN_UP(-EFAULT);
-
+
if (read_audio.addr_format==CDROM_MSF) /* MSF-bin specification of where to start */
block=msf2lba(&read_audio.addr.msf.minute);
else if (read_audio.addr_format==CDROM_LBA) /* lba specification of where to start */
@@ -4282,7 +5162,7 @@
#if OLD_BUSY
while (busy_data) sbp_sleep(HZ/10); /* wait a bit */
busy_audio=1;
-#endif /* OLD_BUSY */
+#endif /* OLD_BUSY */
error_flag=0;
for (data_tries=5; data_tries>0; data_tries--)
{
@@ -4304,7 +5184,7 @@
continue;
}
msg(DBG_AUD,"read_audio: sbp_status: ok.\n");
-
+
flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus | f_obey_p_check;
if (fam0L_drive)
{
@@ -4470,7 +5350,7 @@
current_drive->mode=READ_M1;
#if OLD_BUSY
busy_audio=0;
-#endif /* OLD_BUSY */
+#endif /* OLD_BUSY */
if (data_tries == 0)
{
msg(DBG_AUD,"read_audio: failed after 5 tries in line %d.\n", __LINE__);
@@ -4479,900 +5359,13 @@
msg(DBG_AUD,"read_audio: successful return.\n");
RETURN_UP(0);
} /* end of CDROMREADAUDIO */
-
+
default:
msg(DBG_IOC,"ioctl: unknown function request %04X\n", cmd);
RETURN_UP(-EINVAL);
} /* end switch(cmd) */
}
-static int sbpcd_audio_ioctl(struct cdrom_device_info *cdi, u_int cmd,
- void * arg)
-{
- struct sbpcd_drive *p = cdi->handle;
- int i, st, j;
-
- msg(DBG_IO2,"ioctl(%s, 0x%08lX, 0x%08p)\n", cdi->name, cmd, arg);
- if (p->drv_id==-1) {
- msg(DBG_INF, "ioctl: bad device: %s\n", cdi->name);
- return (-ENXIO); /* no such drive */
- }
- down(&ioctl_read_sem);
- if (p != current_drive)
- switch_drive(p);
-
- msg(DBG_IO2,"ioctl: device %s, request %04X\n",cdi->name,cmd);
- switch (cmd) /* Sun-compatible */
- {
-
- case CDROMPAUSE: /* Pause the drive */
- msg(DBG_IOC,"ioctl: CDROMPAUSE entered.\n");
- /* pause the drive unit when it is currently in PLAY mode, */
- /* or reset the starting and ending locations when in PAUSED mode. */
- /* If applicable, at the next stopping point it reaches */
- /* the drive will discontinue playing. */
- switch (current_drive->audio_state)
- {
- case audio_playing:
- if (famL_drive) i=cc_ReadSubQ();
- else i=cc_Pause_Resume(1);
- if (i<0) RETURN_UP(-EIO);
- if (famL_drive) i=cc_Pause_Resume(1);
- else i=cc_ReadSubQ();
- if (i<0) RETURN_UP(-EIO);
- current_drive->pos_audio_start=current_drive->SubQ_run_tot;
- current_drive->audio_state=audio_pausing;
- RETURN_UP(0);
- case audio_pausing:
- i=cc_Seek(current_drive->pos_audio_start,1);
- if (i<0) RETURN_UP(-EIO);
- RETURN_UP(0);
- default:
- RETURN_UP(-EINVAL);
- }
-
- case CDROMRESUME: /* resume paused audio play */
- msg(DBG_IOC,"ioctl: CDROMRESUME entered.\n");
- /* resume playing audio tracks when a previous PLAY AUDIO call has */
- /* been paused with a PAUSE command. */
- /* It will resume playing from the location saved in SubQ_run_tot. */
- if (current_drive->audio_state!=audio_pausing) RETURN_UP(-EINVAL);
- if (famL_drive)
- i=cc_PlayAudio(current_drive->pos_audio_start,
- current_drive->pos_audio_end);
- else i=cc_Pause_Resume(3);
- if (i<0) RETURN_UP(-EIO);
- current_drive->audio_state=audio_playing;
- RETURN_UP(0);
-
- case CDROMPLAYMSF:
- msg(DBG_IOC,"ioctl: CDROMPLAYMSF entered.\n");
-#ifdef SAFE_MIXED
- if (current_drive->has_data>1) RETURN_UP(-EBUSY);
-#endif /* SAFE_MIXED */
- if (current_drive->audio_state==audio_playing)
- {
- i=cc_Pause_Resume(1);
- if (i<0) RETURN_UP(-EIO);
- i=cc_ReadSubQ();
- if (i<0) RETURN_UP(-EIO);
- current_drive->pos_audio_start=current_drive->SubQ_run_tot;
- i=cc_Seek(current_drive->pos_audio_start,1);
- }
- memcpy(&msf, (void *) arg, sizeof(struct cdrom_msf));
- /* values come as msf-bin */
- current_drive->pos_audio_start = (msf.cdmsf_min0<<16) |
- (msf.cdmsf_sec0<<8) |
- msf.cdmsf_frame0;
- current_drive->pos_audio_end = (msf.cdmsf_min1<<16) |
- (msf.cdmsf_sec1<<8) |
- msf.cdmsf_frame1;
- msg(DBG_IOX,"ioctl: CDROMPLAYMSF %08X %08X\n",
- current_drive->pos_audio_start,current_drive->pos_audio_end);
- i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
- if (i<0)
- {
- msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
- DriveReset();
- current_drive->audio_state=0;
- RETURN_UP(-EIO);
- }
- current_drive->audio_state=audio_playing;
- RETURN_UP(0);
-
- case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
- msg(DBG_IOC,"ioctl: CDROMPLAYTRKIND entered.\n");
-#ifdef SAFE_MIXED
- if (current_drive->has_data>1) RETURN_UP(-EBUSY);
-#endif /* SAFE_MIXED */
- if (current_drive->audio_state==audio_playing)
- {
- msg(DBG_IOX,"CDROMPLAYTRKIND: already audio_playing.\n");
-#if 1
- RETURN_UP(0); /* just let us play on */
-#else
- RETURN_UP(-EINVAL); /* play on, but say "error" */
-#endif
- }
- memcpy(&ti,(void *) arg,sizeof(struct cdrom_ti));
- msg(DBG_IOX,"ioctl: trk0: %d, ind0: %d, trk1:%d, ind1:%d\n",
- ti.cdti_trk0,ti.cdti_ind0,ti.cdti_trk1,ti.cdti_ind1);
- if (ti.cdti_trk0<current_drive->n_first_track) RETURN_UP(-EINVAL);
- if (ti.cdti_trk0>current_drive->n_last_track) RETURN_UP(-EINVAL);
- if (ti.cdti_trk1<ti.cdti_trk0) ti.cdti_trk1=ti.cdti_trk0;
- if (ti.cdti_trk1>current_drive->n_last_track) ti.cdti_trk1=current_drive->n_last_track;
- current_drive->pos_audio_start=current_drive->TocBuffer[ti.cdti_trk0].address;
- current_drive->pos_audio_end=current_drive->TocBuffer[ti.cdti_trk1+1].address;
- i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
- if (i<0)
- {
- msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
- DriveReset();
- current_drive->audio_state=0;
- RETURN_UP(-EIO);
- }
- current_drive->audio_state=audio_playing;
- RETURN_UP(0);
-
- case CDROMREADTOCHDR: /* Read the table of contents header */
- msg(DBG_IOC,"ioctl: CDROMREADTOCHDR entered.\n");
- tochdr.cdth_trk0=current_drive->n_first_track;
- tochdr.cdth_trk1=current_drive->n_last_track;
- memcpy((void *) arg, &tochdr, sizeof(struct cdrom_tochdr));
- RETURN_UP(0);
-
- case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
- msg(DBG_IOC,"ioctl: CDROMREADTOCENTRY entered.\n");
- memcpy(&tocentry, (void *) arg, sizeof(struct cdrom_tocentry));
- i=tocentry.cdte_track;
- if (i==CDROM_LEADOUT) i=current_drive->n_last_track+1;
- else if (i<current_drive->n_first_track||i>current_drive->n_last_track)
- RETURN_UP(-EINVAL);
- tocentry.cdte_adr=current_drive->TocBuffer[i].ctl_adr&0x0F;
- tocentry.cdte_ctrl=(current_drive->TocBuffer[i].ctl_adr>>4)&0x0F;
- tocentry.cdte_datamode=current_drive->TocBuffer[i].format;
- if (tocentry.cdte_format==CDROM_MSF) /* MSF-bin required */
- {
- tocentry.cdte_addr.msf.minute=(current_drive->TocBuffer[i].address>>16)&0x00FF;
- tocentry.cdte_addr.msf.second=(current_drive->TocBuffer[i].address>>8)&0x00FF;
- tocentry.cdte_addr.msf.frame=current_drive->TocBuffer[i].address&0x00FF;
- }
- else if (tocentry.cdte_format==CDROM_LBA) /* blk required */
- tocentry.cdte_addr.lba=msf2blk(current_drive->TocBuffer[i].address);
- else RETURN_UP(-EINVAL);
- memcpy((void *) arg, &tocentry, sizeof(struct cdrom_tocentry));
- RETURN_UP(0);
-
- case CDROMSTOP: /* Spin down the drive */
- msg(DBG_IOC,"ioctl: CDROMSTOP entered.\n");
-#ifdef SAFE_MIXED
- if (current_drive->has_data>1) RETURN_UP(-EBUSY);
-#endif /* SAFE_MIXED */
- i=cc_Pause_Resume(1);
- current_drive->audio_state=0;
-#if 0
- cc_DriveReset();
-#endif
- RETURN_UP(i);
-
- case CDROMSTART: /* Spin up the drive */
- msg(DBG_IOC,"ioctl: CDROMSTART entered.\n");
- cc_SpinUp();
- current_drive->audio_state=0;
- RETURN_UP(0);
-
- case CDROMVOLCTRL: /* Volume control */
- msg(DBG_IOC,"ioctl: CDROMVOLCTRL entered.\n");
- memcpy(&volctrl,(char *) arg,sizeof(volctrl));
- current_drive->vol_chan0=0;
- current_drive->vol_ctrl0=volctrl.channel0;
- current_drive->vol_chan1=1;
- current_drive->vol_ctrl1=volctrl.channel1;
- i=cc_SetVolume();
- RETURN_UP(0);
-
- case CDROMVOLREAD: /* read Volume settings from drive */
- msg(DBG_IOC,"ioctl: CDROMVOLREAD entered.\n");
- st=cc_GetVolume();
- if (st<0) RETURN_UP(st);
- volctrl.channel0=current_drive->vol_ctrl0;
- volctrl.channel1=current_drive->vol_ctrl1;
- volctrl.channel2=0;
- volctrl.channel2=0;
- memcpy((void *)arg,&volctrl,sizeof(volctrl));
- RETURN_UP(0);
-
- case CDROMSUBCHNL: /* Get subchannel info */
- msg(DBG_IOS,"ioctl: CDROMSUBCHNL entered.\n");
- /* Bogus, I can do better than this! --AJK
- if ((st_spinning)||(!subq_valid)) {
- i=cc_ReadSubQ();
- if (i<0) RETURN_UP(-EIO);
- }
- */
- i=cc_ReadSubQ();
- if (i<0) {
- j=cc_ReadError(); /* clear out error status from drive */
- current_drive->audio_state=CDROM_AUDIO_NO_STATUS;
- /* get and set the disk state here,
- probably not the right place, but who cares!
- It makes it work properly! --AJK */
- if (current_drive->CD_changed==0xFF) {
- msg(DBG_000,"Disk changed detect\n");
- current_drive->diskstate_flags &= ~cd_size_bit;
- }
- RETURN_UP(-EIO);
- }
- if (current_drive->CD_changed==0xFF) {
- /* reread the TOC because the disk has changed! --AJK */
- msg(DBG_000,"Disk changed STILL detected, rereading TOC!\n");
- i=DiskInfo();
- if(i==0) {
- current_drive->CD_changed=0x00; /* cd has changed, procede, */
- RETURN_UP(-EIO); /* and get TOC, etc on next try! --AJK */
- } else {
- RETURN_UP(-EIO); /* we weren't ready yet! --AJK */
- }
- }
- memcpy(&SC, (void *) arg, sizeof(struct cdrom_subchnl));
- /*
- This virtual crap is very bogus!
- It doesn't detect when the cd is done playing audio!
- Lets do this right with proper hardware register reading!
- */
- cc_ReadStatus();
- i=ResponseStatus();
- msg(DBG_000,"Drive Status: door_locked =%d.\n", st_door_locked);
- msg(DBG_000,"Drive Status: door_closed =%d.\n", st_door_closed);
- msg(DBG_000,"Drive Status: caddy_in =%d.\n", st_caddy_in);
- msg(DBG_000,"Drive Status: disk_ok =%d.\n", st_diskok);
- msg(DBG_000,"Drive Status: spinning =%d.\n", st_spinning);
- msg(DBG_000,"Drive Status: busy =%d.\n", st_busy);
- /* st_busy indicates if it's _ACTUALLY_ playing audio */
- switch (current_drive->audio_state)
- {
- case audio_playing:
- if(st_busy==0) {
- /* CD has stopped playing audio --AJK */
- current_drive->audio_state=audio_completed;
- SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
- } else {
- SC.cdsc_audiostatus=CDROM_AUDIO_PLAY;
- }
- break;
- case audio_pausing:
- SC.cdsc_audiostatus=CDROM_AUDIO_PAUSED;
- break;
- case audio_completed:
- SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
- break;
- default:
- SC.cdsc_audiostatus=CDROM_AUDIO_NO_STATUS;
- break;
- }
- SC.cdsc_adr=current_drive->SubQ_ctl_adr;
- SC.cdsc_ctrl=current_drive->SubQ_ctl_adr>>4;
- SC.cdsc_trk=bcd2bin(current_drive->SubQ_trk);
- SC.cdsc_ind=bcd2bin(current_drive->SubQ_pnt_idx);
- if (SC.cdsc_format==CDROM_LBA)
- {
- SC.cdsc_absaddr.lba=msf2blk(current_drive->SubQ_run_tot);
- SC.cdsc_reladdr.lba=msf2blk(current_drive->SubQ_run_trk);
- }
- else /* not only if (SC.cdsc_format==CDROM_MSF) */
- {
- SC.cdsc_absaddr.msf.minute=(current_drive->SubQ_run_tot>>16)&0x00FF;
- SC.cdsc_absaddr.msf.second=(current_drive->SubQ_run_tot>>8)&0x00FF;
- SC.cdsc_absaddr.msf.frame=current_drive->SubQ_run_tot&0x00FF;
- SC.cdsc_reladdr.msf.minute=(current_drive->SubQ_run_trk>>16)&0x00FF;
- SC.cdsc_reladdr.msf.second=(current_drive->SubQ_run_trk>>8)&0x00FF;
- SC.cdsc_reladdr.msf.frame=current_drive->SubQ_run_trk&0x00FF;
- }
- memcpy((void *) arg, &SC, sizeof(struct cdrom_subchnl));
- msg(DBG_IOS,"CDROMSUBCHNL: %1X %02X %08X %08X %02X %02X %06X %06X\n",
- SC.cdsc_format,SC.cdsc_audiostatus,
- SC.cdsc_adr,SC.cdsc_ctrl,
- SC.cdsc_trk,SC.cdsc_ind,
- SC.cdsc_absaddr,SC.cdsc_reladdr);
- RETURN_UP(0);
-
- default:
- msg(DBG_IOC,"ioctl: unknown function request %04X\n", cmd);
- RETURN_UP(-EINVAL);
- } /* end switch(cmd) */
-}
-/*==========================================================================*/
-/*
- * Take care of the different block sizes between cdrom and Linux.
- */
-static void sbp_transfer(struct request *req)
-{
- long offs;
-
- while ( (req->nr_sectors > 0) &&
- (req->sector/4 >= current_drive->sbp_first_frame) &&
- (req->sector/4 <= current_drive->sbp_last_frame) )
- {
- offs = (req->sector - current_drive->sbp_first_frame * 4) * 512;
- memcpy(req->buffer, current_drive->sbp_buf + offs, 512);
- req->nr_sectors--;
- req->sector++;
- req->buffer += 512;
- }
-}
-/*==========================================================================*/
-/*
- * special end_request for sbpcd to solve CURRENT==NULL bug. (GTL)
- * GTL = Gonzalo Tornaria <tornaria@cmat.edu.uy>
- *
- * This is a kludge so we don't need to modify end_request.
- * We put the req we take out after INIT_REQUEST in the requests list,
- * so that end_request will discard it.
- *
- * The bug could be present in other block devices, perhaps we
- * should modify INIT_REQUEST and end_request instead, and
- * change every block device..
- *
- * Could be a race here?? Could e.g. a timer interrupt schedule() us?
- * If so, we should copy end_request here, and do it right.. (or
- * modify end_request and the block devices).
- *
- * In any case, the race here would be much small than it was, and
- * I couldn't reproduce..
- *
- * The race could be: suppose CURRENT==NULL. We put our req in the list,
- * and we are scheduled. Other process takes over, and gets into
- * do_sbpcd_request. It sees CURRENT!=NULL (it is == to our req), so
- * proceeds. It ends, so CURRENT is now NULL.. Now we awake somewhere in
- * end_request, but now CURRENT==NULL... oops!
- *
- */
-#undef DEBUG_GTL
-
-/*==========================================================================*/
-/*
- * I/O request routine, called from Linux kernel.
- */
-static void do_sbpcd_request(request_queue_t * q)
-{
- u_int block;
- u_int nsect;
- int status_tries, data_tries;
- struct request *req;
- struct sbpcd_drive *p;
-#ifdef DEBUG_GTL
- static int xx_nr=0;
- int xnr;
-#endif
-
- request_loop:
-#ifdef DEBUG_GTL
- xnr=++xx_nr;
-
- req = elv_next_request(q);
-
- if (!req)
- {
- printk( "do_sbpcd_request[%di](NULL), Pid:%d, Time:%li\n",
- xnr, current->pid, jiffies);
- printk( "do_sbpcd_request[%do](NULL) end 0 (null), Time:%li\n",
- xnr, jiffies);
- return;
- }
-
- printk(" do_sbpcd_request[%di](%p:%ld+%ld), Pid:%d, Time:%li\n",
- xnr, req, req->sector, req->nr_sectors, current->pid, jiffies);
-#endif
-
- req = elv_next_request(q); /* take out our request so no other */
- if (!req)
- return;
-
- if (req -> sector == -1)
- end_request(req, 0);
- spin_unlock_irq(q->queue_lock);
-
- down(&ioctl_read_sem);
- if (rq_data_dir(elv_next_request(q)) != READ)
- {
- msg(DBG_INF, "bad cmd %d\n", req->cmd[0]);
- goto err_done;
- }
- p = req->rq_disk->private_data;
-#if OLD_BUSY
- while (busy_audio) sbp_sleep(HZ); /* wait a bit */
- busy_data=1;
-#endif /* OLD_BUSY */
-
- if (p->audio_state==audio_playing) goto err_done;
- if (p != current_drive)
- switch_drive(p);
-
- block = req->sector; /* always numbered as 512-byte-pieces */
- nsect = req->nr_sectors; /* always counted as 512-byte-pieces */
-
- msg(DBG_BSZ,"read sector %d (%d sectors)\n", block, nsect);
-#if 0
- msg(DBG_MUL,"read LBA %d\n", block/4);
-#endif
-
- sbp_transfer(req);
- /* if we satisfied the request from the buffer, we're done. */
- if (req->nr_sectors == 0)
- {
-#ifdef DEBUG_GTL
- printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 2, Time:%li\n",
- xnr, req, req->sector, req->nr_sectors, jiffies);
-#endif
- up(&ioctl_read_sem);
- spin_lock_irq(q->queue_lock);
- end_request(req, 1);
- goto request_loop;
- }
-
-#ifdef FUTURE
- i=prepare(0,0); /* at moment not really a hassle check, but ... */
- if (i!=0)
- msg(DBG_INF,"\"prepare\" tells error %d -- ignored\n", i);
-#endif /* FUTURE */
-
- if (!st_spinning) cc_SpinUp();
-
- for (data_tries=n_retries; data_tries > 0; data_tries--)
- {
- for (status_tries=3; status_tries > 0; status_tries--)
- {
- flags_cmd_out |= f_respo3;
- cc_ReadStatus();
- if (sbp_status() != 0) break;
- if (st_check) cc_ReadError();
- sbp_sleep(1); /* wait a bit, try again */
- }
- if (status_tries == 0)
- {
- msg(DBG_INF,"sbp_status: failed after 3 tries in line %d\n", __LINE__);
- break;
- }
-
- sbp_read_cmd(req);
- sbp_sleep(0);
- if (sbp_data(req) != 0)
- {
-#ifdef SAFE_MIXED
- current_drive->has_data=2; /* is really a data disk */
-#endif /* SAFE_MIXED */
-#ifdef DEBUG_GTL
- printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 3, Time:%li\n",
- xnr, req, req->sector, req->nr_sectors, jiffies);
-#endif
- up(&ioctl_read_sem);
- spin_lock_irq(q->queue_lock);
- end_request(req, 1);
- goto request_loop;
- }
- }
-
- err_done:
-#if OLD_BUSY
- busy_data=0;
-#endif /* OLD_BUSY */
-#ifdef DEBUG_GTL
- printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 4 (error), Time:%li\n",
- xnr, req, req->sector, req->nr_sectors, jiffies);
-#endif
- up(&ioctl_read_sem);
- sbp_sleep(0); /* wait a bit, try again */
- spin_lock_irq(q->queue_lock);
- end_request(req, 0);
- goto request_loop;
-}
-/*==========================================================================*/
-/*
- * build and send the READ command.
- */
-static void sbp_read_cmd(struct request *req)
-{
-#undef OLD
-
- int i;
- int block;
-
- current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1; /* purge buffer */
- current_drive->sbp_current = 0;
- block=req->sector/4;
- if (block+current_drive->sbp_bufsiz <= current_drive->CDsize_frm)
- current_drive->sbp_read_frames = current_drive->sbp_bufsiz;
- else
- {
- current_drive->sbp_read_frames=current_drive->CDsize_frm-block;
- /* avoid reading past end of data */
- if (current_drive->sbp_read_frames < 1)
- {
- msg(DBG_INF,"requested frame %d, CD size %d ???\n",
- block, current_drive->CDsize_frm);
- current_drive->sbp_read_frames=1;
- }
- }
-
- flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus | f_obey_p_check;
- clr_cmdbuf();
- if (famV_drive)
- {
- drvcmd[0]=CMDV_READ;
- lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
- bin2bcdx(&drvcmd[1]);
- bin2bcdx(&drvcmd[2]);
- bin2bcdx(&drvcmd[3]);
- drvcmd[4]=current_drive->sbp_read_frames>>8;
- drvcmd[5]=current_drive->sbp_read_frames&0xff;
- drvcmd[6]=0x02; /* flag "msf-bcd" */
- }
- else if (fam0L_drive)
- {
- flags_cmd_out |= f_lopsta | f_getsta | f_bit1;
- if (current_drive->xa_byte==0x20)
- {
- cmd_type=READ_M2;
- drvcmd[0]=CMD0_READ_XA; /* "read XA frames", old drives */
- drvcmd[1]=(block>>16)&0x0ff;
- drvcmd[2]=(block>>8)&0x0ff;
- drvcmd[3]=block&0x0ff;
- drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
- drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
- }
- else
- {
- drvcmd[0]=CMD0_READ; /* "read frames", old drives */
- if (current_drive->drv_type>=drv_201)
- {
- lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
- bin2bcdx(&drvcmd[1]);
- bin2bcdx(&drvcmd[2]);
- bin2bcdx(&drvcmd[3]);
- }
- else
- {
- drvcmd[1]=(block>>16)&0x0ff;
- drvcmd[2]=(block>>8)&0x0ff;
- drvcmd[3]=block&0x0ff;
- }
- drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
- drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
- drvcmd[6]=(current_drive->drv_type<drv_201)?0:2; /* flag "lba or msf-bcd format" */
- }
- }
- else if (fam1_drive)
- {
- drvcmd[0]=CMD1_READ;
- lba2msf(block,&drvcmd[1]); /* msf-bin format required */
- drvcmd[5]=(current_drive->sbp_read_frames>>8)&0x0ff;
- drvcmd[6]=current_drive->sbp_read_frames&0x0ff;
- }
- else if (fam2_drive)
- {
- drvcmd[0]=CMD2_READ;
- lba2msf(block,&drvcmd[1]); /* msf-bin format required */
- drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
- drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
- drvcmd[6]=0x02;
- }
- else if (famT_drive)
- {
- drvcmd[0]=CMDT_READ;
- drvcmd[2]=(block>>24)&0x0ff;
- drvcmd[3]=(block>>16)&0x0ff;
- drvcmd[4]=(block>>8)&0x0ff;
- drvcmd[5]=block&0x0ff;
- drvcmd[7]=(current_drive->sbp_read_frames>>8)&0x0ff;
- drvcmd[8]=current_drive->sbp_read_frames&0x0ff;
- }
- flags_cmd_out=f_putcmd;
- response_count=0;
- i=cmd_out();
- if (i<0) msg(DBG_INF,"error giving READ command: %0d\n", i);
- return;
-}
-/*==========================================================================*/
-/*
- * Check the completion of the read-data command. On success, read
- * the current_drive->sbp_bufsiz * 2048 bytes of data from the disk into buffer.
- */
-static int sbp_data(struct request *req)
-{
- int i=0, j=0, l, frame;
- u_int try=0;
- u_long timeout;
- u_char *p;
- u_int data_tries = 0;
- u_int data_waits = 0;
- u_int data_retrying = 0;
- int error_flag;
- int xa_count;
- int max_latency;
- int success;
- int wait;
- int duration;
-
- error_flag=0;
- success=0;
-#if LONG_TIMING
- max_latency=9*HZ;
-#else
- if (current_drive->f_multisession) max_latency=15*HZ;
- else max_latency=5*HZ;
-#endif
- duration=jiffies;
- for (frame=0;frame<current_drive->sbp_read_frames&&!error_flag; frame++)
- {
- SBPCD_CLI;
-
- del_timer(&data_timer);
- data_timer.expires=jiffies+max_latency;
- timed_out_data=0;
- add_timer(&data_timer);
- while (!timed_out_data)
- {
- if (current_drive->f_multisession) try=maxtim_data*4;
- else try=maxtim_data;
- msg(DBG_000,"sbp_data: CDi_status loop: try=%d.\n",try);
- for ( ; try!=0;try--)
- {
- j=inb(CDi_status);
- if (!(j&s_not_data_ready)) break;
- if (!(j&s_not_result_ready)) break;
- if (fam0LV_drive) if (j&s_attention) break;
- }
- if (!(j&s_not_data_ready)) goto data_ready;
- if (try==0)
- {
- if (data_retrying == 0) data_waits++;
- data_retrying = 1;
- msg(DBG_000,"sbp_data: CDi_status loop: sleeping.\n");
- sbp_sleep(1);
- try = 1;
- }
- }
- msg(DBG_INF,"sbp_data: CDi_status loop expired.\n");
- data_ready:
- del_timer(&data_timer);
-
- if (timed_out_data)
- {
- msg(DBG_INF,"sbp_data: CDi_status timeout (timed_out_data) (%02X).\n", j);
- error_flag++;
- }
- if (try==0)
- {
- msg(DBG_INF,"sbp_data: CDi_status timeout (try=0) (%02X).\n", j);
- error_flag++;
- }
- if (!(j&s_not_result_ready))
- {
- msg(DBG_INF, "sbp_data: RESULT_READY where DATA_READY awaited (%02X).\n", j);
- response_count=20;
- j=ResponseInfo();
- j=inb(CDi_status);
- }
- if (j&s_not_data_ready)
- {
- if ((current_drive->ored_ctl_adr&0x40)==0)
- msg(DBG_INF, "CD contains no data tracks.\n");
- else msg(DBG_INF, "sbp_data: DATA_READY timeout (%02X).\n", j);
- error_flag++;
- }
- SBPCD_STI;
- if (error_flag) break;
-
- msg(DBG_000, "sbp_data: beginning to read.\n");
- p = current_drive->sbp_buf + frame * CD_FRAMESIZE;
- if (sbpro_type==1) OUT(CDo_sel_i_d,1);
- if (cmd_type==READ_M2) {
- if (do_16bit) insw(CDi_data, xa_head_buf, CD_XA_HEAD>>1);
- else insb(CDi_data, xa_head_buf, CD_XA_HEAD);
- }
- if (do_16bit) insw(CDi_data, p, CD_FRAMESIZE>>1);
- else insb(CDi_data, p, CD_FRAMESIZE);
- if (cmd_type==READ_M2) {
- if (do_16bit) insw(CDi_data, xa_tail_buf, CD_XA_TAIL>>1);
- else insb(CDi_data, xa_tail_buf, CD_XA_TAIL);
- }
- current_drive->sbp_current++;
- if (sbpro_type==1) OUT(CDo_sel_i_d,0);
- if (cmd_type==READ_M2)
- {
- for (xa_count=0;xa_count<CD_XA_HEAD;xa_count++)
- sprintf(&msgbuf[xa_count*3], " %02X", xa_head_buf[xa_count]);
- msgbuf[xa_count*3]=0;
- msg(DBG_XA1,"xa head:%s\n", msgbuf);
- }
- data_retrying = 0;
- data_tries++;
- if (data_tries >= 1000)
- {
- msg(DBG_INF,"sbp_data() statistics: %d waits in %d frames.\n", data_waits, data_tries);
- data_waits = data_tries = 0;
- }
- }
- duration=jiffies-duration;
- msg(DBG_TEA,"time to read %d frames: %d jiffies .\n",frame,duration);
- if (famT_drive)
- {
- wait=8;
- do
- {
- if (teac==2)
- {
- if ((i=CDi_stat_loop_T()) == -1) break;
- }
- else
- {
- sbp_sleep(1);
- OUT(CDo_sel_i_d,0);
- i=inb(CDi_status);
- }
- if (!(i&s_not_data_ready))
- {
- OUT(CDo_sel_i_d,1);
- j=0;
- do
- {
- if (do_16bit) i=inw(CDi_data);
- else i=inb(CDi_data);
- j++;
- i=inb(CDi_status);
- }
- while (!(i&s_not_data_ready));
- msg(DBG_TEA, "==========too much data (%d bytes/words)==============.\n", j);
- }
- if (!(i&s_not_result_ready))
- {
- OUT(CDo_sel_i_d,0);
- l=0;
- do
- {
- infobuf[l++]=inb(CDi_info);
- i=inb(CDi_status);
- }
- while (!(i&s_not_result_ready));
- if (infobuf[0]==0x00) success=1;
-#if 1
- for (j=0;j<l;j++) sprintf(&msgbuf[j*3], " %02X", infobuf[j]);
- msgbuf[j*3]=0;
- msg(DBG_TEA,"sbp_data info response:%s\n", msgbuf);
-#endif
- if (infobuf[0]==0x02)
- {
- error_flag++;
- do
- {
- ++recursion;
- if (recursion>1) msg(DBG_TEA,"cmd_out_T READ_ERR recursion (sbp_data): %d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",recursion);
- else msg(DBG_TEA,"sbp_data: CMDT_READ_ERR necessary.\n");
- clr_cmdbuf();
- drvcmd[0]=CMDT_READ_ERR;
- j=cmd_out_T(); /* !!! recursive here !!! */
- --recursion;
- sbp_sleep(1);
- }
- while (j<0);
- current_drive->error_state=infobuf[2];
- current_drive->b3=infobuf[3];
- current_drive->b4=infobuf[4];
- }
- break;
- }
- else
- {
-#if 0
- msg(DBG_TEA, "============= waiting for result=================.\n");
- sbp_sleep(1);
-#endif
- }
- }
- while (wait--);
- }
-
- if (error_flag) /* must have been spurious D_RDY or (ATTN&&!D_RDY) */
- {
- msg(DBG_TEA, "================error flag: %d=================.\n", error_flag);
- msg(DBG_INF,"sbp_data: read aborted by drive.\n");
-#if 1
- i=cc_DriveReset(); /* ugly fix to prevent a hang */
-#else
- i=cc_ReadError();
-#endif
- return (0);
- }
-
- if (fam0LV_drive)
- {
- SBPCD_CLI;
- i=maxtim_data;
- for (timeout=jiffies+HZ; time_before(jiffies, timeout); timeout--)
- {
- for ( ;i!=0;i--)
- {
- j=inb(CDi_status);
- if (!(j&s_not_data_ready)) break;
- if (!(j&s_not_result_ready)) break;
- if (j&s_attention) break;
- }
- if (i != 0 || time_after_eq(jiffies, timeout)) break;
- sbp_sleep(0);
- i = 1;
- }
- if (i==0) msg(DBG_INF,"status timeout after READ.\n");
- if (!(j&s_attention))
- {
- msg(DBG_INF,"sbp_data: timeout waiting DRV_ATTN - retrying.\n");
- i=cc_DriveReset(); /* ugly fix to prevent a hang */
- SBPCD_STI;
- return (0);
- }
- SBPCD_STI;
- }
-
-#if 0
- if (!success)
-#endif
- do
- {
- if (fam0LV_drive) cc_ReadStatus();
-#if 1
- if (famT_drive) msg(DBG_TEA, "================before ResponseStatus=================.\n", i);
-#endif
- i=ResponseStatus(); /* builds status_bits, returns orig. status (old) or faked p_success (new) */
-#if 1
- if (famT_drive) msg(DBG_TEA, "================ResponseStatus: %d=================.\n", i);
-#endif
- if (i<0)
- {
- msg(DBG_INF,"bad cc_ReadStatus after read: %02X\n", current_drive->status_bits);
- return (0);
- }
- }
- while ((fam0LV_drive)&&(!st_check)&&(!(i&p_success)));
- if (st_check)
- {
- i=cc_ReadError();
- msg(DBG_INF,"cc_ReadError was necessary after read: %d\n",i);
- return (0);
- }
- if (fatal_err)
- {
- fatal_err=0;
- current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1; /* purge buffer */
- current_drive->sbp_current = 0;
- msg(DBG_INF,"sbp_data: fatal_err - retrying.\n");
- return (0);
- }
-
- current_drive->sbp_first_frame = req -> sector / 4;
- current_drive->sbp_last_frame = current_drive->sbp_first_frame + current_drive->sbp_read_frames - 1;
- sbp_transfer(req);
- return (1);
-}
-/*==========================================================================*/
-
-static int sbpcd_block_open(struct inode *inode, struct file *file)
-{
- struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
- return cdrom_open(p->sbpcd_infop, inode, file);
-}
-
-static int sbpcd_block_release(struct inode *inode, struct file *file)
-{
- struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
- return cdrom_release(p->sbpcd_infop, file);
-}
-
-static int sbpcd_block_ioctl(struct inode *inode, struct file *file,
- unsigned cmd, unsigned long arg)
-{
- struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
- return cdrom_ioctl(file, p->sbpcd_infop, inode, cmd, arg);
-}
-
static int sbpcd_block_media_changed(struct gendisk *disk)
{
struct sbpcd_drive *p = disk->private_data;
@@ -5478,10 +5471,9 @@
.get_mcn = sbpcd_get_mcn,
.reset = sbpcd_reset,
.audio_ioctl = sbpcd_audio_ioctl,
- .dev_ioctl = sbpcd_dev_ioctl,
.capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
- CDC_MCN | CDC_PLAY_AUDIO | CDC_IOCTLS,
+ CDC_MCN | CDC_PLAY_AUDIO,
.n_minors = 1,
};
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index e276172..c0f817b 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -627,7 +627,7 @@
.media_changed = viocd_media_changed,
.lock_door = viocd_lock_door,
.generic_packet = viocd_packet,
- .capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | CDC_RESET | CDC_IOCTLS | CDC_DRIVE_STATUS | CDC_GENERIC_PACKET | CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_RAM
+ .capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_GENERIC_PACKET | CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_RAM
};
static int __init find_capability(const char *type)
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index 7ac365b..6602b31 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -46,8 +46,6 @@
/* Sanity checks */
-#define SERIAL_INLINE
-
#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
#define DBG_CNT(s) printk("(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
tty->name, (info->flags), serial_driver->refcount,info->count,tty->count,s)
@@ -95,10 +93,6 @@
#include <asm/amigahw.h>
#include <asm/amigaints.h>
-#ifdef SERIAL_INLINE
-#define _INLINE_ inline
-#endif
-
#define custom amiga_custom
static char *serial_name = "Amiga-builtin serial driver";
@@ -253,14 +247,14 @@
* This routine is used by the interrupt handler to schedule
* processing in the software interrupt portion of the driver.
*/
-static _INLINE_ void rs_sched_event(struct async_struct *info,
- int event)
+static void rs_sched_event(struct async_struct *info,
+ int event)
{
info->event |= 1 << event;
tasklet_schedule(&info->tlet);
}
-static _INLINE_ void receive_chars(struct async_struct *info)
+static void receive_chars(struct async_struct *info)
{
int status;
int serdatr;
@@ -349,7 +343,7 @@
return;
}
-static _INLINE_ void transmit_chars(struct async_struct *info)
+static void transmit_chars(struct async_struct *info)
{
custom.intreq = IF_TBE;
mb();
@@ -389,7 +383,7 @@
}
}
-static _INLINE_ void check_modem_status(struct async_struct *info)
+static void check_modem_status(struct async_struct *info)
{
unsigned char status = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
unsigned char dstatus;
@@ -1959,7 +1953,7 @@
* number, and identifies which options were configured into this
* driver.
*/
-static _INLINE_ void show_serial_version(void)
+static void show_serial_version(void)
{
printk(KERN_INFO "%s version %s\n", serial_name, serial_version);
}
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index e38a5f0..5e59c0b 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -48,8 +48,8 @@
#define NEW_WRITE_LOCKING 1
#if NEW_WRITE_LOCKING
#define DECL /* Nothing */
-#define LOCKIT down (& port->port_write_sem);
-#define RELEASEIT up (&port->port_write_sem);
+#define LOCKIT mutex_lock(& port->port_write_mutex);
+#define RELEASEIT mutex_unlock(&port->port_write_mutex);
#else
#define DECL unsigned long flags;
#define LOCKIT save_flags (flags);cli ()
@@ -124,14 +124,14 @@
/* get exclusive "write" access to this port (problem 3) */
/* This is not a spinlock because we can have a disk access (page
fault) in copy_from_user */
- down (& port->port_write_sem);
+ mutex_lock(& port->port_write_mutex);
while (1) {
c = count;
/* This is safe because we "OWN" the "head". Noone else can
- change the "head": we own the port_write_sem. */
+ change the "head": we own the port_write_mutex. */
/* Don't overrun the end of the buffer */
t = SERIAL_XMIT_SIZE - port->xmit_head;
if (t < c) c = t;
@@ -153,7 +153,7 @@
count -= c;
total += c;
}
- up (& port->port_write_sem);
+ mutex_unlock(& port->port_write_mutex);
gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n",
(port->flags & GS_TX_INTEN)?"enabled": "disabled");
@@ -214,7 +214,7 @@
c = count;
/* This is safe because we "OWN" the "head". Noone else can
- change the "head": we own the port_write_sem. */
+ change the "head": we own the port_write_mutex. */
/* Don't overrun the end of the buffer */
t = SERIAL_XMIT_SIZE - port->xmit_head;
if (t < c) c = t;
@@ -888,7 +888,7 @@
spin_lock_irqsave (&port->driver_lock, flags);
if (port->tty)
clear_bit(TTY_IO_ERROR, &port->tty->flags);
- init_MUTEX(&port->port_write_sem);
+ mutex_init(&port->port_write_mutex);
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
spin_unlock_irqrestore(&port->driver_lock, flags);
gs_set_termios(port->tty, NULL);
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 28c5a31..ede1283 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -181,7 +181,6 @@
* is already swapping a shared buffer won't make things any worse.
*/
static char *stli_tmpwritebuf;
-static DECLARE_MUTEX(stli_tmpwritesem);
#define STLI_TXBUFSIZE 4096
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index ccad7ae..ede365d 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -132,7 +132,7 @@
* We test the TTY_THROTTLED bit first so that it always
* indicates the current state. The decision about whether
* it is worth allowing more input has been taken by the caller.
- * Can sleep, may be called under the atomic_read semaphore but
+ * Can sleep, may be called under the atomic_read_lock mutex but
* this is not guaranteed.
*/
@@ -1132,7 +1132,7 @@
* buffer, and once to drain the space from the (physical) beginning of
* the buffer to head pointer.
*
- * Called under the tty->atomic_read sem and with TTY_DONT_FLIP set
+ * Called under the tty->atomic_read_lock sem and with TTY_DONT_FLIP set
*
*/
@@ -1262,11 +1262,11 @@
* Internal serialization of reads.
*/
if (file->f_flags & O_NONBLOCK) {
- if (down_trylock(&tty->atomic_read))
+ if (!mutex_trylock(&tty->atomic_read_lock))
return -EAGAIN;
}
else {
- if (down_interruptible(&tty->atomic_read))
+ if (mutex_lock_interruptible(&tty->atomic_read_lock))
return -ERESTARTSYS;
}
@@ -1393,7 +1393,7 @@
timeout = time;
}
clear_bit(TTY_DONT_FLIP, &tty->flags);
- up(&tty->atomic_read);
+ mutex_unlock(&tty->atomic_read_lock);
remove_wait_queue(&tty->read_wait, &wait);
if (!waitqueue_active(&tty->read_wait))
diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c
index ca41d62..8865387 100644
--- a/drivers/char/nwflash.c
+++ b/drivers/char/nwflash.c
@@ -27,6 +27,7 @@
#include <linux/rwsem.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <asm/hardware/dec21285.h>
#include <asm/io.h>
@@ -56,7 +57,7 @@
static int gbWriteBase64Enable;
static volatile unsigned char *FLASH_BASE;
static int gbFlashSize = KFLASH_SIZE;
-static DECLARE_MUTEX(nwflash_sem);
+static DEFINE_MUTEX(nwflash_mutex);
extern spinlock_t gpio_lock;
@@ -140,7 +141,7 @@
/*
* We now lock against reads and writes. --rmk
*/
- if (down_interruptible(&nwflash_sem))
+ if (mutex_lock_interruptible(&nwflash_mutex))
return -ERESTARTSYS;
ret = copy_to_user(buf, (void *)(FLASH_BASE + p), count);
@@ -149,7 +150,7 @@
*ppos += count;
} else
ret = -EFAULT;
- up(&nwflash_sem);
+ mutex_unlock(&nwflash_mutex);
}
return ret;
}
@@ -188,7 +189,7 @@
/*
* We now lock against reads and writes. --rmk
*/
- if (down_interruptible(&nwflash_sem))
+ if (mutex_lock_interruptible(&nwflash_mutex))
return -ERESTARTSYS;
written = 0;
@@ -277,7 +278,7 @@
*/
leds_event(led_release);
- up(&nwflash_sem);
+ mutex_unlock(&nwflash_mutex);
return written;
}
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 30e4cbe..15a7b40 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -19,6 +19,7 @@
#include <linux/uio.h>
#include <linux/cdev.h>
#include <linux/device.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
@@ -29,7 +30,7 @@
static struct class *raw_class;
static struct raw_device_data raw_devices[MAX_RAW_MINORS];
-static DECLARE_MUTEX(raw_mutex);
+static DEFINE_MUTEX(raw_mutex);
static struct file_operations raw_ctl_fops; /* forward declaration */
/*
@@ -53,7 +54,7 @@
return 0;
}
- down(&raw_mutex);
+ mutex_lock(&raw_mutex);
/*
* All we need to do on open is check that the device is bound.
@@ -78,7 +79,7 @@
filp->f_dentry->d_inode->i_mapping =
bdev->bd_inode->i_mapping;
filp->private_data = bdev;
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
return 0;
out2:
@@ -86,7 +87,7 @@
out1:
blkdev_put(bdev);
out:
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
return err;
}
@@ -99,14 +100,14 @@
const int minor= iminor(inode);
struct block_device *bdev;
- down(&raw_mutex);
+ mutex_lock(&raw_mutex);
bdev = raw_devices[minor].binding;
if (--raw_devices[minor].inuse == 0) {
/* Here inode->i_mapping == bdev->bd_inode->i_mapping */
inode->i_mapping = &inode->i_data;
inode->i_mapping->backing_dev_info = &default_backing_dev_info;
}
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
bd_release(bdev);
blkdev_put(bdev);
@@ -187,9 +188,9 @@
goto out;
}
- down(&raw_mutex);
+ mutex_lock(&raw_mutex);
if (rawdev->inuse) {
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
err = -EBUSY;
goto out;
}
@@ -211,11 +212,11 @@
bind_device(&rq);
}
}
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
} else {
struct block_device *bdev;
- down(&raw_mutex);
+ mutex_lock(&raw_mutex);
bdev = rawdev->binding;
if (bdev) {
rq.block_major = MAJOR(bdev->bd_dev);
@@ -223,7 +224,7 @@
} else {
rq.block_major = rq.block_minor = 0;
}
- up(&raw_mutex);
+ mutex_unlock(&raw_mutex);
if (copy_to_user((void __user *)arg, &rq, sizeof(rq))) {
err = -EFAULT;
goto out;
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
index fee68cc..510bd3e 100644
--- a/drivers/char/ser_a2232.c
+++ b/drivers/char/ser_a2232.c
@@ -97,7 +97,7 @@
#include <asm/amigahw.h>
#include <linux/zorro.h>
#include <asm/irq.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include <linux/delay.h>
@@ -654,7 +654,7 @@
port->gs.closing_wait = 30 * HZ;
port->gs.rd = &a2232_real_driver;
#ifdef NEW_WRITE_LOCKING
- init_MUTEX(&(port->gs.port_write_sem));
+ init_MUTEX(&(port->gs.port_write_mutex));
#endif
init_waitqueue_head(&port->gs.open_wait);
init_waitqueue_head(&port->gs.close_wait);
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c
index 0e7d216..b543821 100644
--- a/drivers/char/snsc.c
+++ b/drivers/char/snsc.c
@@ -5,7 +5,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2004, 2006 Silicon Graphics, Inc. All rights reserved.
*/
/*
@@ -77,7 +77,7 @@
scd = container_of(inode->i_cdev, struct sysctl_data_s, scd_cdev);
/* allocate memory for subchannel data */
- sd = kmalloc(sizeof (struct subch_data_s), GFP_KERNEL);
+ sd = kzalloc(sizeof (struct subch_data_s), GFP_KERNEL);
if (sd == NULL) {
printk("%s: couldn't allocate subchannel data\n",
__FUNCTION__);
@@ -85,7 +85,6 @@
}
/* initialize subch_data_s fields */
- memset(sd, 0, sizeof (struct subch_data_s));
sd->sd_nasid = scd->scd_nasid;
sd->sd_subch = ia64_sn_irtr_open(scd->scd_nasid);
@@ -394,7 +393,7 @@
sprintf(devnamep, "#%d", geo_slab(geoid));
/* allocate sysctl device data */
- scd = kmalloc(sizeof (struct sysctl_data_s),
+ scd = kzalloc(sizeof (struct sysctl_data_s),
GFP_KERNEL);
if (!scd) {
printk("%s: failed to allocate device info"
@@ -402,7 +401,6 @@
SYSCTL_BASENAME, devname);
continue;
}
- memset(scd, 0, sizeof (struct sysctl_data_s));
/* initialize sysctl device data fields */
scd->scd_nasid = cnodeid_to_nasid(cnode);
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index a4fa507..e234d50 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -287,7 +287,7 @@
{
int rv;
- event_sd = kmalloc(sizeof (struct subch_data_s), GFP_KERNEL);
+ event_sd = kzalloc(sizeof (struct subch_data_s), GFP_KERNEL);
if (event_sd == NULL) {
printk(KERN_WARNING "%s: couldn't allocate subchannel info"
" for event monitoring\n", __FUNCTION__);
@@ -295,7 +295,6 @@
}
/* initialize subch_data_s fields */
- memset(event_sd, 0, sizeof (struct subch_data_s));
event_sd->sd_nasid = scd->scd_nasid;
spin_lock_init(&event_sd->sd_rlock);
@@ -321,5 +320,3 @@
return;
}
}
-
-
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index bdaab699..3f5d607 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -148,7 +148,6 @@
* is already swapping a shared buffer won't make things any worse.
*/
static char *stl_tmpwritebuf;
-static DECLARE_MUTEX(stl_tmpwritesem);
/*
* Define a local default termios struct. All ports will be created
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index a6b4f02..3b47472 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -2318,7 +2318,7 @@
port->board = board;
port->gs.rd = &sx_real_driver;
#ifdef NEW_WRITE_LOCKING
- port->gs.port_write_sem = MUTEX;
+ port->gs.port_write_mutex = MUTEX;
#endif
port->gs.driver_lock = SPIN_LOCK_UNLOCKED;
/*
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 53d3d06..76592ee 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -130,7 +130,7 @@
/* Semaphore to protect creating and releasing a tty. This is shared with
vt.c for deeply disgusting hack reasons */
-DECLARE_MUTEX(tty_sem);
+DEFINE_MUTEX(tty_mutex);
#ifdef CONFIG_UNIX98_PTYS
extern struct tty_driver *ptm_driver; /* Unix98 pty masters; for /dev/ptmx */
@@ -1188,11 +1188,11 @@
lock_kernel();
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
tty = current->signal->tty;
if (tty) {
tty_pgrp = tty->pgrp;
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
if (on_exit && tty->driver->type != TTY_DRIVER_TYPE_PTY)
tty_vhangup(tty);
} else {
@@ -1200,7 +1200,7 @@
kill_pg(current->signal->tty_old_pgrp, SIGHUP, on_exit);
kill_pg(current->signal->tty_old_pgrp, SIGCONT, on_exit);
}
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
unlock_kernel();
return;
}
@@ -1211,7 +1211,7 @@
}
/* Must lock changes to tty_old_pgrp */
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
current->signal->tty_old_pgrp = 0;
tty->session = 0;
tty->pgrp = -1;
@@ -1222,7 +1222,7 @@
p->signal->tty = NULL;
} while_each_task_pid(current->signal->session, PIDTYPE_SID, p);
read_unlock(&tasklist_lock);
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
unlock_kernel();
}
@@ -1306,7 +1306,7 @@
ssize_t ret = 0, written = 0;
unsigned int chunk;
- if (down_interruptible(&tty->atomic_write)) {
+ if (mutex_lock_interruptible(&tty->atomic_write_lock)) {
return -ERESTARTSYS;
}
@@ -1329,7 +1329,7 @@
if (count < chunk)
chunk = count;
- /* write_buf/write_cnt is protected by the atomic_write semaphore */
+ /* write_buf/write_cnt is protected by the atomic_write_lock mutex */
if (tty->write_cnt < chunk) {
unsigned char *buf;
@@ -1338,7 +1338,7 @@
buf = kmalloc(chunk, GFP_KERNEL);
if (!buf) {
- up(&tty->atomic_write);
+ mutex_unlock(&tty->atomic_write_lock);
return -ENOMEM;
}
kfree(tty->write_buf);
@@ -1374,7 +1374,7 @@
inode->i_mtime = current_fs_time(inode->i_sb);
ret = written;
}
- up(&tty->atomic_write);
+ mutex_unlock(&tty->atomic_write_lock);
return ret;
}
@@ -1442,8 +1442,8 @@
/*
* WSH 06/09/97: Rewritten to remove races and properly clean up after a
- * failed open. The new code protects the open with a semaphore, so it's
- * really quite straightforward. The semaphore locking can probably be
+ * failed open. The new code protects the open with a mutex, so it's
+ * really quite straightforward. The mutex locking can probably be
* relaxed for the (most common) case of reopening a tty.
*/
static int init_dev(struct tty_driver *driver, int idx,
@@ -1640,7 +1640,7 @@
success:
*ret_tty = tty;
- /* All paths come through here to release the semaphore */
+ /* All paths come through here to release the mutex */
end_init:
return retval;
@@ -1837,7 +1837,7 @@
/* Guard against races with tty->count changes elsewhere and
opens on /dev/tty */
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
tty_closing = tty->count <= 1;
o_tty_closing = o_tty &&
(o_tty->count <= (pty_master ? 1 : 0));
@@ -1868,7 +1868,7 @@
printk(KERN_WARNING "release_dev: %s: read/write wait queue "
"active!\n", tty_name(tty, buf));
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
schedule();
}
@@ -1934,7 +1934,7 @@
read_unlock(&tasklist_lock);
}
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
/* check whether both sides are closing ... */
if (!tty_closing || (o_tty && !o_tty_closing))
@@ -2040,11 +2040,11 @@
index = -1;
retval = 0;
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
if (device == MKDEV(TTYAUX_MAJOR,0)) {
if (!current->signal->tty) {
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
return -ENXIO;
}
driver = current->signal->tty->driver;
@@ -2070,18 +2070,18 @@
noctty = 1;
goto got_driver;
}
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
return -ENODEV;
}
driver = get_tty_driver(device, &index);
if (!driver) {
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
return -ENODEV;
}
got_driver:
retval = init_dev(driver, index, &tty);
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
if (retval)
return retval;
@@ -2167,9 +2167,9 @@
}
up(&allocated_ptys_lock);
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
retval = init_dev(ptm_driver, index, &tty);
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
if (retval)
goto out;
@@ -2915,8 +2915,8 @@
init_waitqueue_head(&tty->write_wait);
init_waitqueue_head(&tty->read_wait);
INIT_WORK(&tty->hangup_work, do_tty_hangup, tty);
- sema_init(&tty->atomic_read, 1);
- sema_init(&tty->atomic_write, 1);
+ mutex_init(&tty->atomic_read_lock);
+ mutex_init(&tty->atomic_write_lock);
spin_lock_init(&tty->read_lock);
INIT_LIST_HEAD(&tty->tty_files);
INIT_WORK(&tty->SAK_work, NULL, NULL);
diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c
index d932528..fd00822 100644
--- a/drivers/char/vme_scc.c
+++ b/drivers/char/vme_scc.c
@@ -184,7 +184,7 @@
port->gs.closing_wait = 30 * HZ;
port->gs.rd = &scc_real_driver;
#ifdef NEW_WRITE_LOCKING
- port->gs.port_write_sem = MUTEX;
+ port->gs.port_write_mutex = MUTEX;
#endif
init_waitqueue_head(&port->gs.open_wait);
init_waitqueue_head(&port->gs.close_wait);
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 0900d1d..ca4844c 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -2489,7 +2489,7 @@
}
/*
- * We take tty_sem in here to prevent another thread from coming in via init_dev
+ * We take tty_mutex in here to prevent another thread from coming in via init_dev
* and taking a ref against the tty while we're in the process of forgetting
* about it and cleaning things up.
*
@@ -2497,7 +2497,7 @@
*/
static void con_close(struct tty_struct *tty, struct file *filp)
{
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
acquire_console_sem();
if (tty && tty->count == 1) {
struct vc_data *vc = tty->driver_data;
@@ -2507,15 +2507,15 @@
tty->driver_data = NULL;
release_console_sem();
vcs_remove_devfs(tty);
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
/*
- * tty_sem is released, but we still hold BKL, so there is
+ * tty_mutex is released, but we still hold BKL, so there is
* still exclusion against init_dev()
*/
return;
}
release_console_sem();
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
}
static void vc_init(struct vc_data *vc, unsigned int rows,
@@ -2869,9 +2869,9 @@
}
/*
- * We defer the timer blanking to work queue so it can take the console semaphore
+ * We defer the timer blanking to work queue so it can take the console mutex
* (console operations can still happen at irq time, but only from printk which
- * has the console semaphore. Not perfect yet, but better than no locking
+ * has the console mutex. Not perfect yet, but better than no locking
*/
static void blank_screen_t(unsigned long dummy)
{
@@ -3234,6 +3234,14 @@
}
}
+int is_console_suspend_safe(void)
+{
+ /* It is unsafe to suspend devices while X has control of the
+ * hardware. Make sure we are running on a kernel-controlled console.
+ */
+ return vc_cons[fg_console].d->vc_mode == KD_TEXT;
+}
+
/*
* Visible symbols for modules
*/
diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
index 1533f56..2700c5c 100644
--- a/drivers/char/watchdog/pcwd_usb.c
+++ b/drivers/char/watchdog/pcwd_usb.c
@@ -42,6 +42,7 @@
#include <linux/completion.h>
#include <asm/uaccess.h>
#include <linux/usb.h>
+#include <linux/mutex.h>
#ifdef CONFIG_USB_DEBUG
@@ -143,7 +144,7 @@
static struct usb_pcwd_private *usb_pcwd_device;
/* prevent races between open() and disconnect() */
-static DECLARE_MUTEX (disconnect_sem);
+static DEFINE_MUTEX(disconnect_mutex);
/* local function prototypes */
static int usb_pcwd_probe (struct usb_interface *interface, const struct usb_device_id *id);
@@ -723,7 +724,7 @@
struct usb_pcwd_private *usb_pcwd;
/* prevent races with open() */
- down (&disconnect_sem);
+ mutex_lock(&disconnect_mutex);
usb_pcwd = usb_get_intfdata (interface);
usb_set_intfdata (interface, NULL);
@@ -749,7 +750,7 @@
cards_found--;
- up (&disconnect_sem);
+ mutex_unlock(&disconnect_mutex);
printk(KERN_INFO PFX "USB PC Watchdog disconnected\n");
}
diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index d7125f4..3589707 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -26,6 +26,7 @@
#include <linux/netlink.h>
#include <linux/moduleparam.h>
#include <linux/connector.h>
+#include <linux/mutex.h>
#include <net/sock.h>
@@ -41,7 +42,7 @@
MODULE_PARM_DESC(cn_idx, "Connector's main device idx.");
MODULE_PARM_DESC(cn_val, "Connector's main device val.");
-static DECLARE_MUTEX(notify_lock);
+static DEFINE_MUTEX(notify_lock);
static LIST_HEAD(notify_list);
static struct cn_dev cdev;
@@ -260,7 +261,7 @@
{
struct cn_ctl_entry *ent;
- down(¬ify_lock);
+ mutex_lock(¬ify_lock);
list_for_each_entry(ent, ¬ify_list, notify_entry) {
int i;
struct cn_notify_req *req;
@@ -293,7 +294,7 @@
cn_netlink_send(&m, ctl->group, GFP_KERNEL);
}
}
- up(¬ify_lock);
+ mutex_unlock(¬ify_lock);
}
/*
@@ -407,14 +408,14 @@
if (ctl->group == 0) {
struct cn_ctl_entry *n;
- down(¬ify_lock);
+ mutex_lock(¬ify_lock);
list_for_each_entry_safe(ent, n, ¬ify_list, notify_entry) {
if (cn_ctl_msg_equals(ent->msg, ctl)) {
list_del(&ent->notify_entry);
kfree(ent);
}
}
- up(¬ify_lock);
+ mutex_unlock(¬ify_lock);
return;
}
@@ -429,9 +430,9 @@
memcpy(ent->msg, ctl, size - sizeof(*ent));
- down(¬ify_lock);
+ mutex_lock(¬ify_lock);
list_add(&ent->notify_entry, ¬ify_list);
- up(¬ify_lock);
+ mutex_unlock(¬ify_lock);
}
static int __init cn_init(void)
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index 3a4e5c5..d6543fc 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -33,6 +33,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/semaphore.h>
@@ -48,7 +49,7 @@
static dma_addr_t smi_data_buf_handle;
static unsigned long smi_data_buf_size;
static u32 smi_data_buf_phys_addr;
-static DECLARE_MUTEX(smi_data_lock);
+static DEFINE_MUTEX(smi_data_lock);
static unsigned int host_control_action;
static unsigned int host_control_smi_type;
@@ -139,9 +140,9 @@
buf_size = simple_strtoul(buf, NULL, 10);
/* make sure SMI data buffer is at least buf_size */
- down(&smi_data_lock);
+ mutex_lock(&smi_data_lock);
ret = smi_data_buf_realloc(buf_size);
- up(&smi_data_lock);
+ mutex_unlock(&smi_data_lock);
if (ret)
return ret;
@@ -154,7 +155,7 @@
size_t max_read;
ssize_t ret;
- down(&smi_data_lock);
+ mutex_lock(&smi_data_lock);
if (pos >= smi_data_buf_size) {
ret = 0;
@@ -165,7 +166,7 @@
ret = min(max_read, count);
memcpy(buf, smi_data_buf + pos, ret);
out:
- up(&smi_data_lock);
+ mutex_unlock(&smi_data_lock);
return ret;
}
@@ -174,7 +175,7 @@
{
ssize_t ret;
- down(&smi_data_lock);
+ mutex_lock(&smi_data_lock);
ret = smi_data_buf_realloc(pos + count);
if (ret)
@@ -183,7 +184,7 @@
memcpy(smi_data_buf + pos, buf, count);
ret = count;
out:
- up(&smi_data_lock);
+ mutex_unlock(&smi_data_lock);
return ret;
}
@@ -201,9 +202,9 @@
ssize_t ret;
/* make sure buffer is available for host control command */
- down(&smi_data_lock);
+ mutex_lock(&smi_data_lock);
ret = smi_data_buf_realloc(sizeof(struct apm_cmd));
- up(&smi_data_lock);
+ mutex_unlock(&smi_data_lock);
if (ret)
return ret;
@@ -302,7 +303,7 @@
unsigned long val = simple_strtoul(buf, NULL, 10);
ssize_t ret;
- down(&smi_data_lock);
+ mutex_lock(&smi_data_lock);
if (smi_data_buf_size < sizeof(struct smi_cmd)) {
ret = -ENODEV;
@@ -334,7 +335,7 @@
}
out:
- up(&smi_data_lock);
+ mutex_unlock(&smi_data_lock);
return ret;
}
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 3325660..c7671e1 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -313,6 +313,7 @@
#include <linux/cdrom.h>
#include <linux/ide.h>
#include <linux/completion.h>
+#include <linux/mutex.h>
#include <scsi/scsi.h> /* For SCSI -> ATAPI command conversion */
@@ -324,7 +325,7 @@
#include "ide-cd.h"
-static DECLARE_MUTEX(idecd_ref_sem);
+static DEFINE_MUTEX(idecd_ref_mutex);
#define to_ide_cd(obj) container_of(obj, struct cdrom_info, kref)
@@ -335,11 +336,11 @@
{
struct cdrom_info *cd = NULL;
- down(&idecd_ref_sem);
+ mutex_lock(&idecd_ref_mutex);
cd = ide_cd_g(disk);
if (cd)
kref_get(&cd->kref);
- up(&idecd_ref_sem);
+ mutex_unlock(&idecd_ref_mutex);
return cd;
}
@@ -347,9 +348,9 @@
static void ide_cd_put(struct cdrom_info *cd)
{
- down(&idecd_ref_sem);
+ mutex_lock(&idecd_ref_mutex);
kref_put(&cd->kref, ide_cd_release);
- up(&idecd_ref_sem);
+ mutex_unlock(&idecd_ref_mutex);
}
/****************************************************************************
@@ -2471,52 +2472,6 @@
}
static
-int ide_cdrom_dev_ioctl (struct cdrom_device_info *cdi,
- unsigned int cmd, unsigned long arg)
-{
- struct packet_command cgc;
- char buffer[16];
- int stat;
-
- init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
-
- /* These will be moved into the Uniform layer shortly... */
- switch (cmd) {
- case CDROMSETSPINDOWN: {
- char spindown;
-
- if (copy_from_user(&spindown, (void __user *) arg, sizeof(char)))
- return -EFAULT;
-
- if ((stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0)))
- return stat;
-
- buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
-
- return cdrom_mode_select(cdi, &cgc);
- }
-
- case CDROMGETSPINDOWN: {
- char spindown;
-
- if ((stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0)))
- return stat;
-
- spindown = buffer[11] & 0x0f;
-
- if (copy_to_user((void __user *) arg, &spindown, sizeof (char)))
- return -EFAULT;
-
- return 0;
- }
-
- default:
- return -EINVAL;
- }
-
-}
-
-static
int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
unsigned int cmd, void *arg)
@@ -2852,12 +2807,11 @@
.get_mcn = ide_cdrom_get_mcn,
.reset = ide_cdrom_reset,
.audio_ioctl = ide_cdrom_audio_ioctl,
- .dev_ioctl = ide_cdrom_dev_ioctl,
.capability = CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
CDC_SELECT_SPEED | CDC_SELECT_DISC |
CDC_MULTI_SESSION | CDC_MCN |
CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | CDC_RESET |
- CDC_IOCTLS | CDC_DRIVE_STATUS | CDC_CD_R |
+ CDC_DRIVE_STATUS | CDC_CD_R |
CDC_CD_RW | CDC_DVD | CDC_DVD_R| CDC_DVD_RAM |
CDC_GENERIC_PACKET | CDC_MO_DRIVE | CDC_MRW |
CDC_MRW_W | CDC_RAM,
@@ -3367,6 +3321,45 @@
return 0;
}
+static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
+{
+ struct packet_command cgc;
+ char buffer[16];
+ int stat;
+ char spindown;
+
+ if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
+ return -EFAULT;
+
+ init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
+
+ stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
+ if (stat)
+ return stat;
+
+ buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
+ return cdrom_mode_select(cdi, &cgc);
+}
+
+static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
+{
+ struct packet_command cgc;
+ char buffer[16];
+ int stat;
+ char spindown;
+
+ init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
+
+ stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
+ if (stat)
+ return stat;
+
+ spindown = buffer[11] & 0x0f;
+ if (copy_to_user((void __user *)arg, &spindown, sizeof (char)))
+ return -EFAULT;
+ return 0;
+}
+
static int idecd_ioctl (struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
@@ -3374,7 +3367,16 @@
struct cdrom_info *info = ide_cd_g(bdev->bd_disk);
int err;
- err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg);
+ switch (cmd) {
+ case CDROMSETSPINDOWN:
+ return idecd_set_spindown(&info->devinfo, arg);
+ case CDROMGETSPINDOWN:
+ return idecd_get_spindown(&info->devinfo, arg);
+ default:
+ break;
+ }
+
+ err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg);
if (err == -EINVAL)
err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 09086b8..e238b7d 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -60,6 +60,7 @@
#include <linux/genhd.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/mutex.h>
#define _IDE_DISK
@@ -78,7 +79,7 @@
struct kref kref;
};
-static DECLARE_MUTEX(idedisk_ref_sem);
+static DEFINE_MUTEX(idedisk_ref_mutex);
#define to_ide_disk(obj) container_of(obj, struct ide_disk_obj, kref)
@@ -89,11 +90,11 @@
{
struct ide_disk_obj *idkp = NULL;
- down(&idedisk_ref_sem);
+ mutex_lock(&idedisk_ref_mutex);
idkp = ide_disk_g(disk);
if (idkp)
kref_get(&idkp->kref);
- up(&idedisk_ref_sem);
+ mutex_unlock(&idedisk_ref_mutex);
return idkp;
}
@@ -101,9 +102,9 @@
static void ide_disk_put(struct ide_disk_obj *idkp)
{
- down(&idedisk_ref_sem);
+ mutex_lock(&idedisk_ref_mutex);
kref_put(&idkp->kref, ide_disk_release);
- up(&idedisk_ref_sem);
+ mutex_unlock(&idedisk_ref_mutex);
}
/*
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 1f8db9a..a53e3ce 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -98,6 +98,7 @@
#include <linux/cdrom.h>
#include <linux/ide.h>
#include <linux/bitops.h>
+#include <linux/mutex.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
@@ -517,7 +518,7 @@
u8 reserved[4];
} idefloppy_mode_parameter_header_t;
-static DECLARE_MUTEX(idefloppy_ref_sem);
+static DEFINE_MUTEX(idefloppy_ref_mutex);
#define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref)
@@ -528,11 +529,11 @@
{
struct ide_floppy_obj *floppy = NULL;
- down(&idefloppy_ref_sem);
+ mutex_lock(&idefloppy_ref_mutex);
floppy = ide_floppy_g(disk);
if (floppy)
kref_get(&floppy->kref);
- up(&idefloppy_ref_sem);
+ mutex_unlock(&idefloppy_ref_mutex);
return floppy;
}
@@ -540,9 +541,9 @@
static void ide_floppy_put(struct ide_floppy_obj *floppy)
{
- down(&idefloppy_ref_sem);
+ mutex_lock(&idefloppy_ref_mutex);
kref_put(&floppy->kref, ide_floppy_release);
- up(&idefloppy_ref_sem);
+ mutex_unlock(&idefloppy_ref_mutex);
}
/*
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 0101d0d..ebc5906 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -443,6 +443,7 @@
#include <linux/smp_lock.h>
#include <linux/completion.h>
#include <linux/bitops.h>
+#include <linux/mutex.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
@@ -1011,7 +1012,7 @@
int debug_level;
} idetape_tape_t;
-static DECLARE_MUTEX(idetape_ref_sem);
+static DEFINE_MUTEX(idetape_ref_mutex);
static struct class *idetape_sysfs_class;
@@ -1024,11 +1025,11 @@
{
struct ide_tape_obj *tape = NULL;
- down(&idetape_ref_sem);
+ mutex_lock(&idetape_ref_mutex);
tape = ide_tape_g(disk);
if (tape)
kref_get(&tape->kref);
- up(&idetape_ref_sem);
+ mutex_unlock(&idetape_ref_mutex);
return tape;
}
@@ -1036,9 +1037,9 @@
static void ide_tape_put(struct ide_tape_obj *tape)
{
- down(&idetape_ref_sem);
+ mutex_lock(&idetape_ref_mutex);
kref_put(&tape->kref, ide_tape_release);
- up(&idetape_ref_sem);
+ mutex_unlock(&idetape_ref_mutex);
}
/*
@@ -1290,11 +1291,11 @@
{
struct ide_tape_obj *tape = NULL;
- down(&idetape_ref_sem);
+ mutex_lock(&idetape_ref_mutex);
tape = idetape_devs[i];
if (tape)
kref_get(&tape->kref);
- up(&idetape_ref_sem);
+ mutex_unlock(&idetape_ref_mutex);
return tape;
}
@@ -4870,11 +4871,11 @@
drive->driver_data = tape;
- down(&idetape_ref_sem);
+ mutex_lock(&idetape_ref_mutex);
for (minor = 0; idetape_devs[minor]; minor++)
;
idetape_devs[minor] = tape;
- up(&idetape_ref_sem);
+ mutex_unlock(&idetape_ref_mutex);
idetape_setup(drive, tape, minor);
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index feec40c..8c4fcb9 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -32,6 +32,7 @@
#ifdef CONFIG_AVMB1_COMPAT
#include <linux/b1lli.h>
#endif
+#include <linux/mutex.h>
static char *revision = "$Revision: 1.1.2.8 $";
@@ -66,7 +67,7 @@
DEFINE_RWLOCK(capi_drivers_list_lock);
static DEFINE_RWLOCK(application_lock);
-static DECLARE_MUTEX(controller_sem);
+static DEFINE_MUTEX(controller_mutex);
struct capi20_appl *capi_applications[CAPI_MAXAPPL];
struct capi_ctr *capi_cards[CAPI_MAXCONTR];
@@ -395,20 +396,20 @@
{
int i;
- down(&controller_sem);
+ mutex_lock(&controller_mutex);
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (capi_cards[i] == NULL)
break;
}
if (i == CAPI_MAXCONTR) {
- up(&controller_sem);
+ mutex_unlock(&controller_mutex);
printk(KERN_ERR "kcapi: out of controller slots\n");
return -EBUSY;
}
capi_cards[i] = card;
- up(&controller_sem);
+ mutex_unlock(&controller_mutex);
card->nrecvctlpkt = 0;
card->nrecvdatapkt = 0;
@@ -531,13 +532,13 @@
write_unlock_irqrestore(&application_lock, flags);
- down(&controller_sem);
+ mutex_lock(&controller_mutex);
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (!capi_cards[i] || capi_cards[i]->cardstate != CARD_RUNNING)
continue;
register_appl(capi_cards[i], applid, &ap->rparam);
}
- up(&controller_sem);
+ mutex_unlock(&controller_mutex);
if (showcapimsgs & 1) {
printk(KERN_DEBUG "kcapi: appl %d up\n", applid);
@@ -560,13 +561,13 @@
capi_applications[ap->applid - 1] = NULL;
write_unlock_irqrestore(&application_lock, flags);
- down(&controller_sem);
+ mutex_lock(&controller_mutex);
for (i = 0; i < CAPI_MAXCONTR; i++) {
if (!capi_cards[i] || capi_cards[i]->cardstate != CARD_RUNNING)
continue;
release_appl(capi_cards[i], ap->applid);
}
- up(&controller_sem);
+ mutex_unlock(&controller_mutex);
flush_scheduled_work();
skb_queue_purge(&ap->recv_queue);
diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index df9d652..2733250 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -25,7 +25,6 @@
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#define HISAX_STATUS_BUFSIZE 4096
-#define INCLUDE_INLINE_FUNCS
/*
* This structure array contains one entry per card. An entry looks
diff --git a/drivers/isdn/hisax/elsa.c b/drivers/isdn/hisax/elsa.c
index 110e9fd..f8ca4b3 100644
--- a/drivers/isdn/hisax/elsa.c
+++ b/drivers/isdn/hisax/elsa.c
@@ -108,7 +108,6 @@
#define ELSA_ASSIGN 4
#define RS_ISR_PASS_LIMIT 256
-#define _INLINE_ inline
#define FLG_MODEM_ACTIVE 1
/* IPAC AUX */
#define ELSA_IPAC_LINE_LED 0x40 /* Bit 6 Gelbe LED */
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 690a1aa..0c13795 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -172,11 +172,9 @@
memset(stats, 0, sizeof(struct net_device_stats));
- for (i=0; i < NR_CPUS; i++) {
+ for_each_cpu(i) {
struct net_device_stats *lb_stats;
- if (!cpu_possible(i))
- continue;
lb_stats = &per_cpu(loopback_stats, i);
stats->rx_bytes += lb_stats->rx_bytes;
stats->tx_bytes += lb_stats->tx_bytes;
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index f608c12..b2073fc 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -46,6 +46,7 @@
#include <linux/rwsem.h>
#include <linux/stddef.h>
#include <linux/device.h>
+#include <linux/mutex.h>
#include <net/slhc_vj.h>
#include <asm/atomic.h>
@@ -198,11 +199,11 @@
static void cardmap_destroy(struct cardmap **map);
/*
- * all_ppp_sem protects the all_ppp_units mapping.
+ * all_ppp_mutex protects the all_ppp_units mapping.
* It also ensures that finding a ppp unit in the all_ppp_units map
* and updating its file.refcnt field is atomic.
*/
-static DECLARE_MUTEX(all_ppp_sem);
+static DEFINE_MUTEX(all_ppp_mutex);
static struct cardmap *all_ppp_units;
static atomic_t ppp_unit_count = ATOMIC_INIT(0);
@@ -804,7 +805,7 @@
/* Attach to an existing ppp unit */
if (get_user(unit, p))
break;
- down(&all_ppp_sem);
+ mutex_lock(&all_ppp_mutex);
err = -ENXIO;
ppp = ppp_find_unit(unit);
if (ppp != 0) {
@@ -812,7 +813,7 @@
file->private_data = &ppp->file;
err = 0;
}
- up(&all_ppp_sem);
+ mutex_unlock(&all_ppp_mutex);
break;
case PPPIOCATTCHAN:
@@ -2446,7 +2447,7 @@
dev->do_ioctl = ppp_net_ioctl;
ret = -EEXIST;
- down(&all_ppp_sem);
+ mutex_lock(&all_ppp_mutex);
if (unit < 0)
unit = cardmap_find_first_free(all_ppp_units);
else if (cardmap_get(all_ppp_units, unit) != NULL)
@@ -2465,12 +2466,12 @@
atomic_inc(&ppp_unit_count);
cardmap_set(&all_ppp_units, unit, ppp);
- up(&all_ppp_sem);
+ mutex_unlock(&all_ppp_mutex);
*retp = 0;
return ppp;
out2:
- up(&all_ppp_sem);
+ mutex_unlock(&all_ppp_mutex);
free_netdev(dev);
out1:
kfree(ppp);
@@ -2500,7 +2501,7 @@
{
struct net_device *dev;
- down(&all_ppp_sem);
+ mutex_lock(&all_ppp_mutex);
ppp_lock(ppp);
dev = ppp->dev;
ppp->dev = NULL;
@@ -2514,7 +2515,7 @@
ppp->file.dead = 1;
ppp->owner = NULL;
wake_up_interruptible(&ppp->file.rwait);
- up(&all_ppp_sem);
+ mutex_unlock(&all_ppp_mutex);
}
/*
@@ -2556,7 +2557,7 @@
/*
* Locate an existing ppp unit.
- * The caller should have locked the all_ppp_sem.
+ * The caller should have locked the all_ppp_mutex.
*/
static struct ppp *
ppp_find_unit(int unit)
@@ -2601,7 +2602,7 @@
int ret = -ENXIO;
int hdrlen;
- down(&all_ppp_sem);
+ mutex_lock(&all_ppp_mutex);
ppp = ppp_find_unit(unit);
if (ppp == 0)
goto out;
@@ -2626,7 +2627,7 @@
outl:
write_unlock_bh(&pch->upl);
out:
- up(&all_ppp_sem);
+ mutex_unlock(&all_ppp_mutex);
return ret;
}
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 78193e4..330d386 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -38,9 +38,8 @@
{
int i;
- for_each_online_cpu(i) {
+ for_each_online_cpu(i)
vfree(cpu_buffer[i].buffer);
- }
}
int alloc_cpu_buffers(void)
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index 5e38cd7..c89c98a 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -448,11 +448,7 @@
break;
case SMALL_TAG_END:
- if (option_independent != option)
- printk(KERN_WARNING "PnPBIOS: Missing SMALL_TAG_ENDDEP tag\n");
- p = p + 2;
- return (unsigned char *)p;
- break;
+ return p + 2;
default: /* an unkown tag */
len_err:
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index fafeeae..f993055 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -151,9 +151,9 @@
return -ENODEV;
dasd_enable_device(device);
/* Formatting the dasd device can change the capacity. */
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
i_size_write(bdev->bd_inode, (loff_t)get_capacity(device->gdp) << 9);
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return 0;
}
@@ -184,9 +184,9 @@
* Set i_size to zero, since read, write, etc. check against this
* value.
*/
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
i_size_write(bdev->bd_inode, 0);
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
return 0;
}
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 0cf0e4c..39b760a 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -47,6 +47,7 @@
#include <linux/ide.h>
#include <linux/scatterlist.h>
#include <linux/delay.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/bitops.h>
@@ -109,7 +110,7 @@
unsigned long log; /* log flags */
} idescsi_scsi_t;
-static DECLARE_MUTEX(idescsi_ref_sem);
+static DEFINE_MUTEX(idescsi_ref_mutex);
#define ide_scsi_g(disk) \
container_of((disk)->private_data, struct ide_scsi_obj, driver)
@@ -118,19 +119,19 @@
{
struct ide_scsi_obj *scsi = NULL;
- down(&idescsi_ref_sem);
+ mutex_lock(&idescsi_ref_mutex);
scsi = ide_scsi_g(disk);
if (scsi)
scsi_host_get(scsi->host);
- up(&idescsi_ref_sem);
+ mutex_unlock(&idescsi_ref_mutex);
return scsi;
}
static void ide_scsi_put(struct ide_scsi_obj *scsi)
{
- down(&idescsi_ref_sem);
+ mutex_lock(&idescsi_ref_mutex);
scsi_host_put(scsi->host);
- up(&idescsi_ref_sem);
+ mutex_unlock(&idescsi_ref_mutex);
}
static inline idescsi_scsi_t *scsihost_to_idescsi(struct Scsi_Host *host)
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index f9c1192..7c80711 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -71,7 +71,7 @@
#define SR_CAPABILITIES \
(CDC_CLOSE_TRAY|CDC_OPEN_TRAY|CDC_LOCK|CDC_SELECT_SPEED| \
CDC_SELECT_DISC|CDC_MULTI_SESSION|CDC_MCN|CDC_MEDIA_CHANGED| \
- CDC_PLAY_AUDIO|CDC_RESET|CDC_IOCTLS|CDC_DRIVE_STATUS| \
+ CDC_PLAY_AUDIO|CDC_RESET|CDC_DRIVE_STATUS| \
CDC_CD_R|CDC_CD_RW|CDC_DVD|CDC_DVD_R|CDC_DVD_RAM|CDC_GENERIC_PACKET| \
CDC_MRW|CDC_MRW_W|CDC_RAM)
@@ -118,7 +118,6 @@
.get_mcn = sr_get_mcn,
.reset = sr_reset,
.audio_ioctl = sr_audio_ioctl,
- .dev_ioctl = sr_dev_ioctl,
.capability = SR_CAPABILITIES,
.generic_packet = sr_packet,
};
@@ -456,17 +455,33 @@
{
struct scsi_cd *cd = scsi_cd(inode->i_bdev->bd_disk);
struct scsi_device *sdev = cd->device;
+ void __user *argp = (void __user *)arg;
+ int ret;
- /*
- * Send SCSI addressing ioctls directly to mid level, send other
- * ioctls to cdrom/block level.
- */
- switch (cmd) {
- case SCSI_IOCTL_GET_IDLUN:
- case SCSI_IOCTL_GET_BUS_NUMBER:
- return scsi_ioctl(sdev, cmd, (void __user *)arg);
+ /*
+ * Send SCSI addressing ioctls directly to mid level, send other
+ * ioctls to cdrom/block level.
+ */
+ switch (cmd) {
+ case SCSI_IOCTL_GET_IDLUN:
+ case SCSI_IOCTL_GET_BUS_NUMBER:
+ return scsi_ioctl(sdev, cmd, argp);
}
- return cdrom_ioctl(file, &cd->cdi, inode, cmd, arg);
+
+ ret = cdrom_ioctl(file, &cd->cdi, inode, cmd, arg);
+ if (ret != ENOSYS)
+ return ret;
+
+ /*
+ * ENODEV means that we didn't recognise the ioctl, or that we
+ * cannot execute it in the current device state. In either
+ * case fall through to scsi_ioctl, which will return ENDOEV again
+ * if it doesn't recognise the ioctl
+ */
+ ret = scsi_nonblockable_ioctl(sdev, cmd, argp, NULL);
+ if (ret != -ENODEV)
+ return ret;
+ return scsi_ioctl(sdev, cmd, argp);
}
static int sr_block_media_changed(struct gendisk *disk)
diff --git a/drivers/scsi/sr.h b/drivers/scsi/sr.h
index d2bcd99..d65de96 100644
--- a/drivers/scsi/sr.h
+++ b/drivers/scsi/sr.h
@@ -55,7 +55,6 @@
int sr_reset(struct cdrom_device_info *);
int sr_select_speed(struct cdrom_device_info *cdi, int speed);
int sr_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
-int sr_dev_ioctl(struct cdrom_device_info *, unsigned int, unsigned long);
int sr_is_xa(Scsi_CD *);
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index b65462f..d1268cb 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -562,22 +562,3 @@
#endif
return is_xa;
}
-
-int sr_dev_ioctl(struct cdrom_device_info *cdi,
- unsigned int cmd, unsigned long arg)
-{
- Scsi_CD *cd = cdi->handle;
- int ret;
-
- ret = scsi_nonblockable_ioctl(cd->device, cmd,
- (void __user *)arg, NULL);
- /*
- * ENODEV means that we didn't recognise the ioctl, or that we
- * cannot execute it in the current device state. In either
- * case fall through to scsi_ioctl, which will return ENDOEV again
- * if it doesn't recognise the ioctl
- */
- if (ret != -ENODEV)
- return ret;
- return scsi_ioctl(cd->device, cmd, (void __user *)arg);
-}
diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index 7f0f35a..b88a7c1 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -101,8 +101,6 @@
#define RS_ISR_PASS_LIMIT 256
-#define _INLINE_ inline
-
static void change_speed(struct m68k_serial *info);
/*
@@ -262,7 +260,7 @@
/* Drop into the debugger */
}
-static _INLINE_ void status_handle(struct m68k_serial *info, unsigned short status)
+static void status_handle(struct m68k_serial *info, unsigned short status)
{
#if 0
if(status & DCD) {
@@ -289,7 +287,8 @@
return;
}
-static _INLINE_ void receive_chars(struct m68k_serial *info, struct pt_regs *regs, unsigned short rx)
+static void receive_chars(struct m68k_serial *info, struct pt_regs *regs,
+ unsigned short rx)
{
struct tty_struct *tty = info->tty;
m68328_uart *uart = &uart_addr[info->line];
@@ -359,7 +358,7 @@
return;
}
-static _INLINE_ void transmit_chars(struct m68k_serial *info)
+static void transmit_chars(struct m68k_serial *info)
{
m68328_uart *uart = &uart_addr[info->line];
diff --git a/drivers/serial/au1x00_uart.c b/drivers/serial/au1x00_uart.c
index 29f94bb..948880a 100644
--- a/drivers/serial/au1x00_uart.c
+++ b/drivers/serial/au1x00_uart.c
@@ -133,13 +133,12 @@
{ "AU1X00_UART",16, UART_CLEAR_FIFO | UART_USE_FIFO },
};
-static _INLINE_ unsigned int serial_in(struct uart_8250_port *up, int offset)
+static unsigned int serial_in(struct uart_8250_port *up, int offset)
{
return au_readl((unsigned long)up->port.membase + offset);
}
-static _INLINE_ void
-serial_out(struct uart_8250_port *up, int offset, int value)
+static void serial_out(struct uart_8250_port *up, int offset, int value)
{
au_writel(value, (unsigned long)up->port.membase + offset);
}
@@ -237,7 +236,7 @@
serial_out(up, UART_IER, up->ier);
}
-static _INLINE_ void
+static void
receive_chars(struct uart_8250_port *up, int *status, struct pt_regs *regs)
{
struct tty_struct *tty = up->port.info->tty;
@@ -312,7 +311,7 @@
spin_lock(&up->port.lock);
}
-static _INLINE_ void transmit_chars(struct uart_8250_port *up)
+static void transmit_chars(struct uart_8250_port *up)
{
struct circ_buf *xmit = &up->port.info->xmit;
int count;
@@ -346,7 +345,7 @@
serial8250_stop_tx(&up->port);
}
-static _INLINE_ void check_modem_status(struct uart_8250_port *up)
+static void check_modem_status(struct uart_8250_port *up)
{
int status;
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index be12623..8970014 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -481,8 +481,6 @@
#include "serial_compat.h"
#endif
-#define _INLINE_ inline
-
struct tty_driver *serial_driver;
/* serial subtype definitions */
@@ -591,8 +589,6 @@
static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
static int rs_write(struct tty_struct * tty, int from_user,
const unsigned char *buf, int count);
-extern _INLINE_ int rs_raw_write(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count);
#ifdef CONFIG_ETRAX_RS485
static int e100_write_rs485(struct tty_struct * tty, int from_user,
const unsigned char *buf, int count);
@@ -1538,8 +1534,7 @@
/* the tx DMA uses only dma_descr interrupt */
-static _INLINE_ void
-e100_disable_txdma_irq(struct e100_serial *info)
+static void e100_disable_txdma_irq(struct e100_serial *info)
{
#ifdef SERIAL_DEBUG_INTR
printk("txdma_irq(%d): 0\n",info->line);
@@ -1548,8 +1543,7 @@
*R_IRQ_MASK2_CLR = info->irq;
}
-static _INLINE_ void
-e100_enable_txdma_irq(struct e100_serial *info)
+static void e100_enable_txdma_irq(struct e100_serial *info)
{
#ifdef SERIAL_DEBUG_INTR
printk("txdma_irq(%d): 1\n",info->line);
@@ -1558,8 +1552,7 @@
*R_IRQ_MASK2_SET = info->irq;
}
-static _INLINE_ void
-e100_disable_txdma_channel(struct e100_serial *info)
+static void e100_disable_txdma_channel(struct e100_serial *info)
{
unsigned long flags;
@@ -1599,8 +1592,7 @@
}
-static _INLINE_ void
-e100_enable_txdma_channel(struct e100_serial *info)
+static void e100_enable_txdma_channel(struct e100_serial *info)
{
unsigned long flags;
@@ -1625,8 +1617,7 @@
restore_flags(flags);
}
-static _INLINE_ void
-e100_disable_rxdma_channel(struct e100_serial *info)
+static void e100_disable_rxdma_channel(struct e100_serial *info)
{
unsigned long flags;
@@ -1665,8 +1656,7 @@
}
-static _INLINE_ void
-e100_enable_rxdma_channel(struct e100_serial *info)
+static void e100_enable_rxdma_channel(struct e100_serial *info)
{
unsigned long flags;
@@ -1913,9 +1903,7 @@
* This routine is used by the interrupt handler to schedule
* processing in the software interrupt portion of the driver.
*/
-static _INLINE_ void
-rs_sched_event(struct e100_serial *info,
- int event)
+static void rs_sched_event(struct e100_serial *info, int event)
{
if (info->event & (1 << event))
return;
@@ -2155,8 +2143,9 @@
return 1;
}
-extern _INLINE_ unsigned int
-handle_descr_data(struct e100_serial *info, struct etrax_dma_descr *descr, unsigned int recvl)
+static unsigned int handle_descr_data(struct e100_serial *info,
+ struct etrax_dma_descr *descr,
+ unsigned int recvl)
{
struct etrax_recv_buffer *buffer = phys_to_virt(descr->buf) - sizeof *buffer;
@@ -2182,8 +2171,7 @@
return recvl;
}
-static _INLINE_ unsigned int
-handle_all_descr_data(struct e100_serial *info)
+static unsigned int handle_all_descr_data(struct e100_serial *info)
{
struct etrax_dma_descr *descr;
unsigned int recvl;
@@ -2230,8 +2218,7 @@
return ret;
}
-static _INLINE_ void
-receive_chars_dma(struct e100_serial *info)
+static void receive_chars_dma(struct e100_serial *info)
{
struct tty_struct *tty;
unsigned char rstat;
@@ -2292,8 +2279,7 @@
*info->icmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, restart);
}
-static _INLINE_ int
-start_recv_dma(struct e100_serial *info)
+static int start_recv_dma(struct e100_serial *info)
{
struct etrax_dma_descr *descr = info->rec_descr;
struct etrax_recv_buffer *buffer;
@@ -2348,11 +2334,6 @@
}
-static _INLINE_ void
-status_handle(struct e100_serial *info, unsigned short status)
-{
-}
-
/* the bits in the MASK2 register are laid out like this:
DMAI_EOP DMAI_DESCR DMAO_EOP DMAO_DESCR
where I is the input channel and O is the output channel for the port.
@@ -2454,8 +2435,7 @@
return IRQ_RETVAL(handled);
} /* rec_interrupt */
-static _INLINE_ int
-force_eop_if_needed(struct e100_serial *info)
+static int force_eop_if_needed(struct e100_serial *info)
{
/* We check data_avail bit to determine if data has
* arrived since last time
@@ -2499,8 +2479,7 @@
return 1;
}
-extern _INLINE_ void
-flush_to_flip_buffer(struct e100_serial *info)
+static void flush_to_flip_buffer(struct e100_serial *info)
{
struct tty_struct *tty;
struct etrax_recv_buffer *buffer;
@@ -2611,8 +2590,7 @@
tty_flip_buffer_push(tty);
}
-static _INLINE_ void
-check_flush_timeout(struct e100_serial *info)
+static void check_flush_timeout(struct e100_serial *info)
{
/* Flip what we've got (if we can) */
flush_to_flip_buffer(info);
@@ -2741,7 +2719,7 @@
*/
-extern _INLINE_
+static
struct e100_serial * handle_ser_rx_interrupt_no_dma(struct e100_serial *info)
{
unsigned long data_read;
@@ -2875,8 +2853,7 @@
return info;
}
-extern _INLINE_
-struct e100_serial* handle_ser_rx_interrupt(struct e100_serial *info)
+static struct e100_serial* handle_ser_rx_interrupt(struct e100_serial *info)
{
unsigned char rstat;
@@ -2995,7 +2972,7 @@
return info;
} /* handle_ser_rx_interrupt */
-extern _INLINE_ void handle_ser_tx_interrupt(struct e100_serial *info)
+static void handle_ser_tx_interrupt(struct e100_serial *info)
{
unsigned long flags;
@@ -3621,9 +3598,8 @@
restore_flags(flags);
}
-extern _INLINE_ int
-rs_raw_write(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count)
+static int rs_raw_write(struct tty_struct * tty, int from_user,
+ const unsigned char *buf, int count)
{
int c, ret = 0;
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
@@ -4710,7 +4686,7 @@
* /proc fs routines....
*/
-extern _INLINE_ int line_info(char *buf, struct e100_serial *info)
+static int line_info(char *buf, struct e100_serial *info)
{
char stat_buf[30];
int ret;
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index 876bc5e..e9c10c0 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -248,17 +248,17 @@
#endif /* CONFIG_SERIAL_M32R_PLDSIO */
-static _INLINE_ unsigned int sio_in(struct uart_sio_port *up, int offset)
+static unsigned int sio_in(struct uart_sio_port *up, int offset)
{
return __sio_in(up->port.iobase + offset);
}
-static _INLINE_ void sio_out(struct uart_sio_port *up, int offset, int value)
+static void sio_out(struct uart_sio_port *up, int offset, int value)
{
__sio_out(value, up->port.iobase + offset);
}
-static _INLINE_ unsigned int serial_in(struct uart_sio_port *up, int offset)
+static unsigned int serial_in(struct uart_sio_port *up, int offset)
{
if (!offset)
return 0;
@@ -266,8 +266,7 @@
return __sio_in(offset);
}
-static _INLINE_ void
-serial_out(struct uart_sio_port *up, int offset, int value)
+static void serial_out(struct uart_sio_port *up, int offset, int value)
{
if (!offset)
return;
@@ -326,8 +325,8 @@
serial_out(up, UART_IER, up->ier);
}
-static _INLINE_ void receive_chars(struct uart_sio_port *up, int *status,
- struct pt_regs *regs)
+static void receive_chars(struct uart_sio_port *up, int *status,
+ struct pt_regs *regs)
{
struct tty_struct *tty = up->port.info->tty;
unsigned char ch;
@@ -400,7 +399,7 @@
tty_flip_buffer_push(tty);
}
-static _INLINE_ void transmit_chars(struct uart_sio_port *up)
+static void transmit_chars(struct uart_sio_port *up)
{
struct circ_buf *xmit = &up->port.info->xmit;
int count;
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 7fc3d3b..9fe2283 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -102,9 +102,7 @@
#endif
};
-#define _INLINE_
-
-static _INLINE_ unsigned int serial_in(struct uart_sunsu_port *up, int offset)
+static unsigned int serial_in(struct uart_sunsu_port *up, int offset)
{
offset <<= up->port.regshift;
@@ -121,8 +119,7 @@
}
}
-static _INLINE_ void
-serial_out(struct uart_sunsu_port *up, int offset, int value)
+static void serial_out(struct uart_sunsu_port *up, int offset, int value)
{
#ifndef CONFIG_SPARC64
/*
@@ -316,7 +313,7 @@
spin_unlock_irqrestore(&up->port.lock, flags);
}
-static _INLINE_ struct tty_struct *
+static struct tty_struct *
receive_chars(struct uart_sunsu_port *up, unsigned char *status, struct pt_regs *regs)
{
struct tty_struct *tty = up->port.info->tty;
@@ -395,7 +392,7 @@
return tty;
}
-static _INLINE_ void transmit_chars(struct uart_sunsu_port *up)
+static void transmit_chars(struct uart_sunsu_port *up)
{
struct circ_buf *xmit = &up->port.info->xmit;
int count;
@@ -431,7 +428,7 @@
__stop_tx(up);
}
-static _INLINE_ void check_modem_status(struct uart_sunsu_port *up)
+static void check_modem_status(struct uart_sunsu_port *up)
{
int status;
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index 6756d0f..2dffa8e 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -186,8 +186,6 @@
#define RS_STROBE_TIME 10
#define RS_ISR_PASS_LIMIT 256
-#define _INLINE_ inline
-
static void probe_sccs(void);
static void change_speed(struct dec_serial *info);
static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
@@ -344,14 +342,13 @@
* This routine is used by the interrupt handler to schedule
* processing in the software interrupt portion of the driver.
*/
-static _INLINE_ void rs_sched_event(struct dec_serial *info, int event)
+static void rs_sched_event(struct dec_serial *info, int event)
{
info->event |= 1 << event;
tasklet_schedule(&info->tlet);
}
-static _INLINE_ void receive_chars(struct dec_serial *info,
- struct pt_regs *regs)
+static void receive_chars(struct dec_serial *info, struct pt_regs *regs)
{
struct tty_struct *tty = info->tty;
unsigned char ch, stat, flag;
@@ -441,7 +438,7 @@
rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
}
-static _INLINE_ void status_handle(struct dec_serial *info)
+static void status_handle(struct dec_serial *info)
{
unsigned char stat;
diff --git a/fs/9p/mux.c b/fs/9p/mux.c
index ea1134e..8e8356c 100644
--- a/fs/9p/mux.c
+++ b/fs/9p/mux.c
@@ -31,6 +31,7 @@
#include <linux/poll.h>
#include <linux/kthread.h>
#include <linux/idr.h>
+#include <linux/mutex.h>
#include "debug.h"
#include "v9fs.h"
@@ -110,7 +111,7 @@
static u16 v9fs_mux_get_tag(struct v9fs_mux_data *);
static void v9fs_mux_put_tag(struct v9fs_mux_data *, u16);
-static DECLARE_MUTEX(v9fs_mux_task_lock);
+static DEFINE_MUTEX(v9fs_mux_task_lock);
static struct workqueue_struct *v9fs_mux_wq;
static int v9fs_mux_num;
@@ -166,7 +167,7 @@
dprintk(DEBUG_MUX, "mux %p muxnum %d procnum %d\n", m, v9fs_mux_num,
v9fs_mux_poll_task_num);
- up(&v9fs_mux_task_lock);
+ mutex_lock(&v9fs_mux_task_lock);
n = v9fs_mux_calc_poll_procs(v9fs_mux_num + 1);
if (n > v9fs_mux_poll_task_num) {
@@ -225,7 +226,7 @@
}
v9fs_mux_num++;
- down(&v9fs_mux_task_lock);
+ mutex_unlock(&v9fs_mux_task_lock);
return 0;
}
@@ -235,7 +236,7 @@
int i;
struct v9fs_mux_poll_task *vpt;
- up(&v9fs_mux_task_lock);
+ mutex_lock(&v9fs_mux_task_lock);
vpt = m->poll_task;
list_del(&m->mux_list);
for(i = 0; i < ARRAY_SIZE(m->poll_waddr); i++) {
@@ -252,7 +253,7 @@
v9fs_mux_poll_task_num--;
}
v9fs_mux_num--;
- down(&v9fs_mux_task_lock);
+ mutex_unlock(&v9fs_mux_task_lock);
}
/**
diff --git a/fs/adfs/file.c b/fs/adfs/file.c
index afebbfd..6af1088 100644
--- a/fs/adfs/file.c
+++ b/fs/adfs/file.c
@@ -19,11 +19,7 @@
*
* adfs regular file handling primitives
*/
-#include <linux/errno.h>
#include <linux/fs.h>
-#include <linux/fcntl.h>
-#include <linux/time.h>
-#include <linux/stat.h>
#include <linux/buffer_head.h> /* for file_fsync() */
#include <linux/adfs_fs.h>
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 385bed0..f54c5b2 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -13,6 +13,7 @@
/* Internal header file for autofs */
#include <linux/auto_fs4.h>
+#include <linux/mutex.h>
#include <linux/list.h>
/* This is the range of ioctl() numbers we claim as ours */
@@ -102,7 +103,7 @@
int reghost_enabled;
int needs_reghost;
struct super_block *sb;
- struct semaphore wq_sem;
+ struct mutex wq_mutex;
spinlock_t fs_lock;
struct autofs_wait_queue *queues; /* Wait queue pointer */
};
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 2d30828..1ad98d4 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -269,7 +269,7 @@
sbi->sb = s;
sbi->version = 0;
sbi->sub_version = 0;
- init_MUTEX(&sbi->wq_sem);
+ mutex_init(&sbi->wq_mutex);
spin_lock_init(&sbi->fs_lock);
sbi->queues = NULL;
s->s_blocksize = 1024;
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 394ff36..be78e93 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -178,7 +178,7 @@
return -ENOENT;
}
- if (down_interruptible(&sbi->wq_sem)) {
+ if (mutex_lock_interruptible(&sbi->wq_mutex)) {
kfree(name);
return -EINTR;
}
@@ -194,7 +194,7 @@
/* Can't wait for an expire if there's no mount */
if (notify == NFY_NONE && !d_mountpoint(dentry)) {
kfree(name);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -ENOENT;
}
@@ -202,7 +202,7 @@
wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
if ( !wq ) {
kfree(name);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -ENOMEM;
}
@@ -218,10 +218,10 @@
wq->status = -EINTR; /* Status return if interrupted */
atomic_set(&wq->wait_ctr, 2);
atomic_set(&wq->notified, 1);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
} else {
atomic_inc(&wq->wait_ctr);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
kfree(name);
DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d",
(unsigned long) wq->wait_queue_token, wq->len, wq->name, notify);
@@ -282,19 +282,19 @@
{
struct autofs_wait_queue *wq, **wql;
- down(&sbi->wq_sem);
+ mutex_lock(&sbi->wq_mutex);
for ( wql = &sbi->queues ; (wq = *wql) != 0 ; wql = &wq->next ) {
if ( wq->wait_queue_token == wait_queue_token )
break;
}
if ( !wq ) {
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -EINVAL;
}
*wql = wq->next; /* Unlink from chain */
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
kfree(wq->name);
wq->name = NULL; /* Do not wait on this queue */
diff --git a/fs/bio.c b/fs/bio.c
index 1f3bb50..8f1d2e8 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1243,11 +1243,11 @@
scale = 4;
/*
- * scale number of entries
+ * Limit number of entries reserved -- mempools are only used when
+ * the system is completely unable to allocate memory, so we only
+ * need enough to make progress.
*/
- bvec_pool_entries = megabytes * 2;
- if (bvec_pool_entries > 256)
- bvec_pool_entries = 256;
+ bvec_pool_entries = 1 + scale;
fs_bio_set = bioset_create(BIO_POOL_SIZE, bvec_pool_entries, scale);
if (!fs_bio_set)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6e50346..44d05e6 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -265,8 +265,8 @@
SLAB_CTOR_CONSTRUCTOR)
{
memset(bdev, 0, sizeof(*bdev));
- sema_init(&bdev->bd_sem, 1);
- sema_init(&bdev->bd_mount_sem, 1);
+ mutex_init(&bdev->bd_mutex);
+ mutex_init(&bdev->bd_mount_mutex);
INIT_LIST_HEAD(&bdev->bd_inodes);
INIT_LIST_HEAD(&bdev->bd_list);
inode_init_once(&ei->vfs_inode);
@@ -574,7 +574,7 @@
}
owner = disk->fops->owner;
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
if (!bdev->bd_openers) {
bdev->bd_disk = disk;
bdev->bd_contains = bdev;
@@ -605,21 +605,21 @@
if (ret)
goto out_first;
bdev->bd_contains = whole;
- down(&whole->bd_sem);
+ mutex_lock(&whole->bd_mutex);
whole->bd_part_count++;
p = disk->part[part - 1];
bdev->bd_inode->i_data.backing_dev_info =
whole->bd_inode->i_data.backing_dev_info;
if (!(disk->flags & GENHD_FL_UP) || !p || !p->nr_sects) {
whole->bd_part_count--;
- up(&whole->bd_sem);
+ mutex_unlock(&whole->bd_mutex);
ret = -ENXIO;
goto out_first;
}
kobject_get(&p->kobj);
bdev->bd_part = p;
bd_set_size(bdev, (loff_t) p->nr_sects << 9);
- up(&whole->bd_sem);
+ mutex_unlock(&whole->bd_mutex);
}
} else {
put_disk(disk);
@@ -633,13 +633,13 @@
if (bdev->bd_invalidated)
rescan_partitions(bdev->bd_disk, bdev);
} else {
- down(&bdev->bd_contains->bd_sem);
+ mutex_lock(&bdev->bd_contains->bd_mutex);
bdev->bd_contains->bd_part_count++;
- up(&bdev->bd_contains->bd_sem);
+ mutex_unlock(&bdev->bd_contains->bd_mutex);
}
}
bdev->bd_openers++;
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
unlock_kernel();
return 0;
@@ -652,7 +652,7 @@
put_disk(disk);
module_put(owner);
out:
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
unlock_kernel();
if (ret)
bdput(bdev);
@@ -714,7 +714,7 @@
struct inode *bd_inode = bdev->bd_inode;
struct gendisk *disk = bdev->bd_disk;
- down(&bdev->bd_sem);
+ mutex_lock(&bdev->bd_mutex);
lock_kernel();
if (!--bdev->bd_openers) {
sync_blockdev(bdev);
@@ -724,9 +724,9 @@
if (disk->fops->release)
ret = disk->fops->release(bd_inode, NULL);
} else {
- down(&bdev->bd_contains->bd_sem);
+ mutex_lock(&bdev->bd_contains->bd_mutex);
bdev->bd_contains->bd_part_count--;
- up(&bdev->bd_contains->bd_sem);
+ mutex_unlock(&bdev->bd_contains->bd_mutex);
}
if (!bdev->bd_openers) {
struct module *owner = disk->fops->owner;
@@ -746,7 +746,7 @@
bdev->bd_contains = NULL;
}
unlock_kernel();
- up(&bdev->bd_sem);
+ mutex_unlock(&bdev->bd_mutex);
bdput(bdev);
return ret;
}
diff --git a/fs/buffer.c b/fs/buffer.c
index 1d3683d..0d6ca7b 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -201,7 +201,7 @@
* freeze_bdev -- lock a filesystem and force it into a consistent state
* @bdev: blockdevice to lock
*
- * This takes the block device bd_mount_sem to make sure no new mounts
+ * This takes the block device bd_mount_mutex to make sure no new mounts
* happen on bdev until thaw_bdev() is called.
* If a superblock is found on this device, we take the s_umount semaphore
* on it to make sure nobody unmounts until the snapshot creation is done.
@@ -210,7 +210,7 @@
{
struct super_block *sb;
- down(&bdev->bd_mount_sem);
+ mutex_lock(&bdev->bd_mount_mutex);
sb = get_super(bdev);
if (sb && !(sb->s_flags & MS_RDONLY)) {
sb->s_frozen = SB_FREEZE_WRITE;
@@ -264,7 +264,7 @@
drop_super(sb);
}
- up(&bdev->bd_mount_sem);
+ mutex_unlock(&bdev->bd_mount_mutex);
}
EXPORT_SYMBOL(thaw_bdev);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index fed55e3..632561d 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -138,9 +138,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -317,9 +317,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL)
rc = -ENOMEM;
else if (pTcon->ses->capabilities & CAP_UNIX) {
diff --git a/fs/cifs/fcntl.c b/fs/cifs/fcntl.c
index a7a47bb..ec4dfe9 100644
--- a/fs/cifs/fcntl.c
+++ b/fs/cifs/fcntl.c
@@ -86,9 +86,9 @@
cifs_sb = CIFS_SB(file->f_dentry->d_sb);
pTcon = cifs_sb->tcon;
- down(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
rc = -ENOMEM;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 675bd25..165d674 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -203,9 +203,9 @@
}
}
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 5935991..ff93a9f 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -574,9 +574,9 @@
/* Unlink can be called from rename so we can not grab the sem here
since we deadlock otherwise */
-/* down(&direntry->d_sb->s_vfs_rename_sem);*/
+/* mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);*/
full_path = build_path_from_dentry(direntry);
-/* up(&direntry->d_sb->s_vfs_rename_sem);*/
+/* mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);*/
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -718,9 +718,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -803,9 +803,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -1137,9 +1137,9 @@
rc = 0;
}
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if (full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 0f99aae..8d0da7c 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -48,10 +48,10 @@
/* No need to check for cross device links since server will do that
BB note DFS case in future though (when we may have to check) */
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
fromName = build_path_from_dentry(old_file);
toName = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if((fromName == NULL) || (toName == NULL)) {
rc = -ENOMEM;
goto cifs_hl_exit;
@@ -103,9 +103,9 @@
xid = GetXid();
- down(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&direntry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&direntry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&direntry->d_sb->s_vfs_rename_mutex);
if (!full_path)
goto out_no_free;
@@ -164,9 +164,9 @@
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
- down(&inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&inode->i_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
@@ -232,9 +232,9 @@
/* BB would it be safe against deadlock to grab this sem
even though rename itself grabs the sem and calls lookup? */
-/* down(&inode->i_sb->s_vfs_rename_sem);*/
+/* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/
full_path = build_path_from_dentry(direntry);
-/* up(&inode->i_sb->s_vfs_rename_sem);*/
+/* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/
if(full_path == NULL) {
FreeXid(xid);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 288cc04..edb3b6e 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -404,9 +404,9 @@
if(pTcon == NULL)
return -EINVAL;
- down(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_lock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(file->f_dentry);
- up(&file->f_dentry->d_sb->s_vfs_rename_sem);
+ mutex_unlock(&file->f_dentry->d_sb->s_vfs_rename_mutex);
if(full_path == NULL) {
return -ENOMEM;
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 777e336..3938444 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -62,9 +62,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -116,9 +116,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -223,9 +223,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
@@ -341,9 +341,9 @@
cifs_sb = CIFS_SB(sb);
pTcon = cifs_sb->tcon;
- down(&sb->s_vfs_rename_sem);
+ mutex_lock(&sb->s_vfs_rename_mutex);
full_path = build_path_from_dentry(direntry);
- up(&sb->s_vfs_rename_sem);
+ mutex_unlock(&sb->s_vfs_rename_mutex);
if(full_path == NULL) {
FreeXid(xid);
return -ENOMEM;
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index bfb8a23..14c5620 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -18,6 +18,7 @@
#include <linux/mount.h>
#include <linux/tty.h>
#include <linux/devpts_fs.h>
+#include <linux/parser.h>
#define DEVPTS_SUPER_MAGIC 0x1cd1
@@ -32,39 +33,60 @@
umode_t mode;
} config = {.mode = 0600};
+enum {
+ Opt_uid, Opt_gid, Opt_mode,
+ Opt_err
+};
+
+static match_table_t tokens = {
+ {Opt_uid, "uid=%u"},
+ {Opt_gid, "gid=%u"},
+ {Opt_mode, "mode=%o"},
+ {Opt_err, NULL}
+};
+
static int devpts_remount(struct super_block *sb, int *flags, char *data)
{
- int setuid = 0;
- int setgid = 0;
- uid_t uid = 0;
- gid_t gid = 0;
- umode_t mode = 0600;
- char *this_char;
+ char *p;
- this_char = NULL;
- while ((this_char = strsep(&data, ",")) != NULL) {
- int n;
- char dummy;
- if (!*this_char)
+ config.setuid = 0;
+ config.setgid = 0;
+ config.uid = 0;
+ config.gid = 0;
+ config.mode = 0600;
+
+ while ((p = strsep(&data, ",")) != NULL) {
+ substring_t args[MAX_OPT_ARGS];
+ int token;
+ int option;
+
+ if (!*p)
continue;
- if (sscanf(this_char, "uid=%i%c", &n, &dummy) == 1) {
- setuid = 1;
- uid = n;
- } else if (sscanf(this_char, "gid=%i%c", &n, &dummy) == 1) {
- setgid = 1;
- gid = n;
- } else if (sscanf(this_char, "mode=%o%c", &n, &dummy) == 1)
- mode = n & ~S_IFMT;
- else {
- printk("devpts: called with bogus options\n");
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case Opt_uid:
+ if (match_int(&args[0], &option))
+ return -EINVAL;
+ config.uid = option;
+ config.setuid = 1;
+ break;
+ case Opt_gid:
+ if (match_int(&args[0], &option))
+ return -EINVAL;
+ config.gid = option;
+ config.setgid = 1;
+ break;
+ case Opt_mode:
+ if (match_octal(&args[0], &option))
+ return -EINVAL;
+ config.mode = option & ~S_IFMT;
+ break;
+ default:
+ printk(KERN_ERR "devpts: called with bogus options\n");
return -EINVAL;
}
}
- config.setuid = setuid;
- config.setgid = setgid;
- config.uid = uid;
- config.gid = gid;
- config.mode = mode;
return 0;
}
diff --git a/fs/dquot.c b/fs/dquot.c
index 1966c89..acf07e5 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -103,12 +103,12 @@
* (these locking rules also apply for S_NOQUOTA flag in the inode - note that
* for altering the flag i_mutex is also needed). If operation is holding
* reference to dquot in other way (e.g. quotactl ops) it must be guarded by
- * dqonoff_sem.
+ * dqonoff_mutex.
* This locking assures that:
* a) update/access to dquot pointers in inode is serialized
* b) everyone is guarded against invalidate_dquots()
*
- * Each dquot has its dq_lock semaphore. Locked dquots might not be referenced
+ * Each dquot has its dq_lock mutex. Locked dquots might not be referenced
* from inodes (dquot_alloc_space() and such don't check the dq_lock).
* Currently dquot is locked only when it is being read to memory (or space for
* it is being allocated) on the first dqget() and when it is being released on
@@ -118,9 +118,9 @@
* spinlock to internal buffers before writing.
*
* Lock ordering (including related VFS locks) is the following:
- * i_mutex > dqonoff_sem > iprune_sem > journal_lock > dqptr_sem >
- * > dquot->dq_lock > dqio_sem
- * i_mutex on quota files is special (it's below dqio_sem)
+ * i_mutex > dqonoff_sem > journal_lock > dqptr_sem > dquot->dq_lock >
+ * dqio_mutex
+ * i_mutex on quota files is special (it's below dqio_mutex)
*/
static DEFINE_SPINLOCK(dq_list_lock);
@@ -281,8 +281,8 @@
static void wait_on_dquot(struct dquot *dquot)
{
- down(&dquot->dq_lock);
- up(&dquot->dq_lock);
+ mutex_lock(&dquot->dq_lock);
+ mutex_unlock(&dquot->dq_lock);
}
#define mark_dquot_dirty(dquot) ((dquot)->dq_sb->dq_op->mark_dirty(dquot))
@@ -321,8 +321,8 @@
int ret = 0, ret2 = 0;
struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
- down(&dquot->dq_lock);
- down(&dqopt->dqio_sem);
+ mutex_lock(&dquot->dq_lock);
+ mutex_lock(&dqopt->dqio_mutex);
if (!test_bit(DQ_READ_B, &dquot->dq_flags))
ret = dqopt->ops[dquot->dq_type]->read_dqblk(dquot);
if (ret < 0)
@@ -343,8 +343,8 @@
}
set_bit(DQ_ACTIVE_B, &dquot->dq_flags);
out_iolock:
- up(&dqopt->dqio_sem);
- up(&dquot->dq_lock);
+ mutex_unlock(&dqopt->dqio_mutex);
+ mutex_unlock(&dquot->dq_lock);
return ret;
}
@@ -356,7 +356,7 @@
int ret = 0, ret2 = 0;
struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
- down(&dqopt->dqio_sem);
+ mutex_lock(&dqopt->dqio_mutex);
spin_lock(&dq_list_lock);
if (!clear_dquot_dirty(dquot)) {
spin_unlock(&dq_list_lock);
@@ -373,7 +373,7 @@
ret = ret2;
}
out_sem:
- up(&dqopt->dqio_sem);
+ mutex_unlock(&dqopt->dqio_mutex);
return ret;
}
@@ -385,11 +385,11 @@
int ret = 0, ret2 = 0;
struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
- down(&dquot->dq_lock);
+ mutex_lock(&dquot->dq_lock);
/* Check whether we are not racing with some other dqget() */
if (atomic_read(&dquot->dq_count) > 1)
goto out_dqlock;
- down(&dqopt->dqio_sem);
+ mutex_lock(&dqopt->dqio_mutex);
if (dqopt->ops[dquot->dq_type]->release_dqblk) {
ret = dqopt->ops[dquot->dq_type]->release_dqblk(dquot);
/* Write the info */
@@ -399,31 +399,57 @@
ret = ret2;
}
clear_bit(DQ_ACTIVE_B, &dquot->dq_flags);
- up(&dqopt->dqio_sem);
+ mutex_unlock(&dqopt->dqio_mutex);
out_dqlock:
- up(&dquot->dq_lock);
+ mutex_unlock(&dquot->dq_lock);
return ret;
}
/* Invalidate all dquots on the list. Note that this function is called after
* quota is disabled and pointers from inodes removed so there cannot be new
- * quota users. Also because we hold dqonoff_sem there can be no quota users
- * for this sb+type at all. */
+ * quota users. There can still be some users of quotas due to inodes being
+ * just deleted or pruned by prune_icache() (those are not attached to any
+ * list). We have to wait for such users.
+ */
static void invalidate_dquots(struct super_block *sb, int type)
{
struct dquot *dquot, *tmp;
+restart:
spin_lock(&dq_list_lock);
list_for_each_entry_safe(dquot, tmp, &inuse_list, dq_inuse) {
if (dquot->dq_sb != sb)
continue;
if (dquot->dq_type != type)
continue;
-#ifdef __DQUOT_PARANOIA
- if (atomic_read(&dquot->dq_count))
- BUG();
-#endif
- /* Quota now has no users and it has been written on last dqput() */
+ /* Wait for dquot users */
+ if (atomic_read(&dquot->dq_count)) {
+ DEFINE_WAIT(wait);
+
+ atomic_inc(&dquot->dq_count);
+ prepare_to_wait(&dquot->dq_wait_unused, &wait,
+ TASK_UNINTERRUPTIBLE);
+ spin_unlock(&dq_list_lock);
+ /* Once dqput() wakes us up, we know it's time to free
+ * the dquot.
+ * IMPORTANT: we rely on the fact that there is always
+ * at most one process waiting for dquot to free.
+ * Otherwise dq_count would be > 1 and we would never
+ * wake up.
+ */
+ if (atomic_read(&dquot->dq_count) > 1)
+ schedule();
+ finish_wait(&dquot->dq_wait_unused, &wait);
+ dqput(dquot);
+ /* At this moment dquot() need not exist (it could be
+ * reclaimed by prune_dqcache(). Hence we must
+ * restart. */
+ goto restart;
+ }
+ /*
+ * Quota now has no users and it has been written on last
+ * dqput()
+ */
remove_dquot_hash(dquot);
remove_free_dquot(dquot);
remove_inuse(dquot);
@@ -439,7 +465,7 @@
struct quota_info *dqopt = sb_dqopt(sb);
int cnt;
- down(&dqopt->dqonoff_sem);
+ mutex_lock(&dqopt->dqonoff_mutex);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && cnt != type)
continue;
@@ -474,7 +500,7 @@
spin_lock(&dq_list_lock);
dqstats.syncs++;
spin_unlock(&dq_list_lock);
- up(&dqopt->dqonoff_sem);
+ mutex_unlock(&dqopt->dqonoff_mutex);
return 0;
}
@@ -515,7 +541,7 @@
/*
* Put reference to dquot
* NOTE: If you change this function please check whether dqput_blocks() works right...
- * MUST be called with either dqptr_sem or dqonoff_sem held
+ * MUST be called with either dqptr_sem or dqonoff_mutex held
*/
static void dqput(struct dquot *dquot)
{
@@ -540,6 +566,10 @@
if (atomic_read(&dquot->dq_count) > 1) {
/* We have more than one user... nothing to do */
atomic_dec(&dquot->dq_count);
+ /* Releasing dquot during quotaoff phase? */
+ if (!sb_has_quota_enabled(dquot->dq_sb, dquot->dq_type) &&
+ atomic_read(&dquot->dq_count) == 1)
+ wake_up(&dquot->dq_wait_unused);
spin_unlock(&dq_list_lock);
return;
}
@@ -576,11 +606,12 @@
return NODQUOT;
memset((caddr_t)dquot, 0, sizeof(struct dquot));
- sema_init(&dquot->dq_lock, 1);
+ mutex_init(&dquot->dq_lock);
INIT_LIST_HEAD(&dquot->dq_free);
INIT_LIST_HEAD(&dquot->dq_inuse);
INIT_HLIST_NODE(&dquot->dq_hash);
INIT_LIST_HEAD(&dquot->dq_dirty);
+ init_waitqueue_head(&dquot->dq_wait_unused);
dquot->dq_sb = sb;
dquot->dq_type = type;
atomic_set(&dquot->dq_count, 1);
@@ -590,7 +621,7 @@
/*
* Get reference to dquot
- * MUST be called with either dqptr_sem or dqonoff_sem held
+ * MUST be called with either dqptr_sem or dqonoff_mutex held
*/
static struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
{
@@ -656,7 +687,7 @@
return 0;
}
-/* This routine is guarded by dqonoff_sem semaphore */
+/* This routine is guarded by dqonoff_mutex mutex */
static void add_dquot_ref(struct super_block *sb, int type)
{
struct list_head *p;
@@ -732,13 +763,9 @@
{
LIST_HEAD(tofree_head);
- /* We need to be guarded against prune_icache to reach all the
- * inodes - otherwise some can be on the local list of prune_icache */
- down(&iprune_sem);
down_write(&sb_dqopt(sb)->dqptr_sem);
remove_dquot_ref(sb, type, &tofree_head);
up_write(&sb_dqopt(sb)->dqptr_sem);
- up(&iprune_sem);
put_dquot_list(&tofree_head);
}
@@ -938,8 +965,8 @@
unsigned int id = 0;
int cnt, ret = 0;
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode))
return 0;
down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
@@ -1002,8 +1029,8 @@
int cnt, ret = NO_QUOTA;
char warntype[MAXQUOTAS];
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode)) {
out_add:
inode_add_bytes(inode, number);
@@ -1051,8 +1078,8 @@
int cnt, ret = NO_QUOTA;
char warntype[MAXQUOTAS];
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode))
return QUOTA_OK;
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
@@ -1095,8 +1122,8 @@
{
unsigned int cnt;
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode)) {
out_sub:
inode_sub_bytes(inode, number);
@@ -1131,8 +1158,8 @@
{
unsigned int cnt;
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode))
return QUOTA_OK;
down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
@@ -1171,8 +1198,8 @@
chgid = (iattr->ia_valid & ATTR_GID) && inode->i_gid != iattr->ia_gid;
char warntype[MAXQUOTAS];
- /* First test before acquiring semaphore - solves deadlocks when we
- * re-enter the quota code and are already holding the semaphore */
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
if (IS_NOQUOTA(inode))
return QUOTA_OK;
/* Clear the arrays */
@@ -1266,9 +1293,9 @@
int ret;
struct quota_info *dqopt = sb_dqopt(sb);
- down(&dqopt->dqio_sem);
+ mutex_lock(&dqopt->dqio_mutex);
ret = dqopt->ops[type]->write_file_info(sb, type);
- up(&dqopt->dqio_sem);
+ mutex_unlock(&dqopt->dqio_mutex);
return ret;
}
@@ -1324,7 +1351,7 @@
struct inode *toputinode[MAXQUOTAS];
/* We need to serialize quota_off() for device */
- down(&dqopt->dqonoff_sem);
+ mutex_lock(&dqopt->dqonoff_mutex);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
toputinode[cnt] = NULL;
if (type != -1 && cnt != type)
@@ -1353,7 +1380,7 @@
dqopt->info[cnt].dqi_bgrace = 0;
dqopt->ops[cnt] = NULL;
}
- up(&dqopt->dqonoff_sem);
+ mutex_unlock(&dqopt->dqonoff_mutex);
/* Sync the superblock so that buffers with quota data are written to
* disk (and so userspace sees correct data afterwards). */
if (sb->s_op->sync_fs)
@@ -1366,7 +1393,7 @@
* changes done by userspace on the next quotaon() */
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
if (toputinode[cnt]) {
- down(&dqopt->dqonoff_sem);
+ mutex_lock(&dqopt->dqonoff_mutex);
/* If quota was reenabled in the meantime, we have
* nothing to do */
if (!sb_has_quota_enabled(sb, cnt)) {
@@ -1378,7 +1405,7 @@
mark_inode_dirty(toputinode[cnt]);
iput(toputinode[cnt]);
}
- up(&dqopt->dqonoff_sem);
+ mutex_unlock(&dqopt->dqonoff_mutex);
}
if (sb->s_bdev)
invalidate_bdev(sb->s_bdev, 0);
@@ -1419,7 +1446,7 @@
/* And now flush the block cache so that kernel sees the changes */
invalidate_bdev(sb->s_bdev, 0);
mutex_lock(&inode->i_mutex);
- down(&dqopt->dqonoff_sem);
+ mutex_lock(&dqopt->dqonoff_mutex);
if (sb_has_quota_enabled(sb, type)) {
error = -EBUSY;
goto out_lock;
@@ -1444,17 +1471,17 @@
dqopt->ops[type] = fmt->qf_ops;
dqopt->info[type].dqi_format = fmt;
INIT_LIST_HEAD(&dqopt->info[type].dqi_dirty_list);
- down(&dqopt->dqio_sem);
+ mutex_lock(&dqopt->dqio_mutex);
if ((error = dqopt->ops[type]->read_file_info(sb, type)) < 0) {
- up(&dqopt->dqio_sem);
+ mutex_unlock(&dqopt->dqio_mutex);
goto out_file_init;
}
- up(&dqopt->dqio_sem);
+ mutex_unlock(&dqopt->dqio_mutex);
mutex_unlock(&inode->i_mutex);
set_enable_flags(dqopt, type);
add_dquot_ref(sb, type);
- up(&dqopt->dqonoff_sem);
+ mutex_unlock(&dqopt->dqonoff_mutex);
return 0;
@@ -1462,7 +1489,7 @@
dqopt->files[type] = NULL;
iput(inode);
out_lock:
- up(&dqopt->dqonoff_sem);
+ mutex_unlock(&dqopt->dqonoff_mutex);
if (oldflags != -1) {
down_write(&dqopt->dqptr_sem);
/* Set the flags back (in the case of accidental quotaon()
@@ -1550,14 +1577,14 @@
{
struct dquot *dquot;
- down(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
if (!(dquot = dqget(sb, id, type))) {
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return -ESRCH;
}
do_get_dqblk(dquot, di);
dqput(dquot);
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
@@ -1619,14 +1646,14 @@
{
struct dquot *dquot;
- down(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
if (!(dquot = dqget(sb, id, type))) {
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return -ESRCH;
}
do_set_dqblk(dquot, di);
dqput(dquot);
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
@@ -1635,9 +1662,9 @@
{
struct mem_dqinfo *mi;
- down(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
if (!sb_has_quota_enabled(sb, type)) {
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return -ESRCH;
}
mi = sb_dqopt(sb)->info + type;
@@ -1647,7 +1674,7 @@
ii->dqi_flags = mi->dqi_flags & DQF_MASK;
ii->dqi_valid = IIF_ALL;
spin_unlock(&dq_data_lock);
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
@@ -1656,9 +1683,9 @@
{
struct mem_dqinfo *mi;
- down(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
if (!sb_has_quota_enabled(sb, type)) {
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return -ESRCH;
}
mi = sb_dqopt(sb)->info + type;
@@ -1673,7 +1700,7 @@
mark_info_dirty(sb, type);
/* Force write to disk */
sb->dq_op->write_info(sb, type);
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 4284cd3..1c2b16f 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -34,6 +34,7 @@
#include <linux/eventpoll.h>
#include <linux/mount.h>
#include <linux/bitops.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/io.h>
@@ -46,7 +47,7 @@
* LOCKING:
* There are three level of locking required by epoll :
*
- * 1) epsem (semaphore)
+ * 1) epmutex (mutex)
* 2) ep->sem (rw_semaphore)
* 3) ep->lock (rw_lock)
*
@@ -67,9 +68,9 @@
* if a file has been pushed inside an epoll set and it is then
* close()d without a previous call toepoll_ctl(EPOLL_CTL_DEL).
* It is possible to drop the "ep->sem" and to use the global
- * semaphore "epsem" (together with "ep->lock") to have it working,
+ * semaphore "epmutex" (together with "ep->lock") to have it working,
* but having "ep->sem" will make the interface more scalable.
- * Events that require holding "epsem" are very rare, while for
+ * Events that require holding "epmutex" are very rare, while for
* normal operations the epoll private "ep->sem" will guarantee
* a greater scalability.
*/
@@ -274,7 +275,7 @@
/*
* This semaphore is used to serialize ep_free() and eventpoll_release_file().
*/
-static struct semaphore epsem;
+static struct mutex epmutex;
/* Safe wake up implementation */
static struct poll_safewake psw;
@@ -451,15 +452,6 @@
}
-/* Used to initialize the epoll bits inside the "struct file" */
-void eventpoll_init_file(struct file *file)
-{
-
- INIT_LIST_HEAD(&file->f_ep_links);
- spin_lock_init(&file->f_ep_lock);
-}
-
-
/*
* This is called from eventpoll_release() to unlink files from the eventpoll
* interface. We need to have this facility to cleanup correctly files that are
@@ -477,10 +469,10 @@
* cleanup path, and this means that noone is using this file anymore.
* The only hit might come from ep_free() but by holding the semaphore
* will correctly serialize the operation. We do need to acquire
- * "ep->sem" after "epsem" because ep_remove() requires it when called
+ * "ep->sem" after "epmutex" because ep_remove() requires it when called
* from anywhere but ep_free().
*/
- down(&epsem);
+ mutex_lock(&epmutex);
while (!list_empty(lsthead)) {
epi = list_entry(lsthead->next, struct epitem, fllink);
@@ -492,7 +484,7 @@
up_write(&ep->sem);
}
- up(&epsem);
+ mutex_unlock(&epmutex);
}
@@ -819,9 +811,9 @@
* We do not need to hold "ep->sem" here because the epoll file
* is on the way to be removed and no one has references to it
* anymore. The only hit might come from eventpoll_release_file() but
- * holding "epsem" is sufficent here.
+ * holding "epmutex" is sufficent here.
*/
- down(&epsem);
+ mutex_lock(&epmutex);
/*
* Walks through the whole tree by unregistering poll callbacks.
@@ -843,7 +835,7 @@
ep_remove(ep, epi);
}
- up(&epsem);
+ mutex_unlock(&epmutex);
}
@@ -1615,7 +1607,7 @@
{
int error;
- init_MUTEX(&epsem);
+ mutex_init(&epmutex);
/* Initialize the structure used to perform safe poll wait head wake ups */
ep_poll_safewake_init(&psw);
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index ad1432a..4ca8249 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -36,22 +36,6 @@
#include "acl.h"
#include "xip.h"
-/*
- * Couple of helper functions - make the code slightly cleaner.
- */
-
-static inline void ext2_inc_count(struct inode *inode)
-{
- inode->i_nlink++;
- mark_inode_dirty(inode);
-}
-
-static inline void ext2_dec_count(struct inode *inode)
-{
- inode->i_nlink--;
- mark_inode_dirty(inode);
-}
-
static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = ext2_add_link(dentry, inode);
@@ -59,7 +43,7 @@
d_instantiate(dentry, inode);
return 0;
}
- ext2_dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
return err;
}
@@ -201,7 +185,7 @@
return err;
out_fail:
- ext2_dec_count(inode);
+ inode_dec_link_count(inode);
iput (inode);
goto out;
}
@@ -215,7 +199,7 @@
return -EMLINK;
inode->i_ctime = CURRENT_TIME_SEC;
- ext2_inc_count(inode);
+ inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
return ext2_add_nondir(dentry, inode);
@@ -229,7 +213,7 @@
if (dir->i_nlink >= EXT2_LINK_MAX)
goto out;
- ext2_inc_count(dir);
+ inode_inc_link_count(dir);
inode = ext2_new_inode (dir, S_IFDIR | mode);
err = PTR_ERR(inode);
@@ -243,7 +227,7 @@
else
inode->i_mapping->a_ops = &ext2_aops;
- ext2_inc_count(inode);
+ inode_inc_link_count(inode);
err = ext2_make_empty(inode, dir);
if (err)
@@ -258,11 +242,11 @@
return err;
out_fail:
- ext2_dec_count(inode);
- ext2_dec_count(inode);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
out_dir:
- ext2_dec_count(dir);
+ inode_dec_link_count(dir);
goto out;
}
@@ -282,7 +266,7 @@
goto out;
inode->i_ctime = dir->i_ctime;
- ext2_dec_count(inode);
+ inode_dec_link_count(inode);
err = 0;
out:
return err;
@@ -297,8 +281,8 @@
err = ext2_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
- ext2_dec_count(inode);
- ext2_dec_count(dir);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(dir);
}
}
return err;
@@ -338,41 +322,41 @@
new_de = ext2_find_entry (new_dir, new_dentry, &new_page);
if (!new_de)
goto out_dir;
- ext2_inc_count(old_inode);
+ inode_inc_link_count(old_inode);
ext2_set_link(new_dir, new_de, new_page, old_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
new_inode->i_nlink--;
- ext2_dec_count(new_inode);
+ inode_dec_link_count(new_inode);
} else {
if (dir_de) {
err = -EMLINK;
if (new_dir->i_nlink >= EXT2_LINK_MAX)
goto out_dir;
}
- ext2_inc_count(old_inode);
+ inode_inc_link_count(old_inode);
err = ext2_add_link(new_dentry, old_inode);
if (err) {
- ext2_dec_count(old_inode);
+ inode_dec_link_count(old_inode);
goto out_dir;
}
if (dir_de)
- ext2_inc_count(new_dir);
+ inode_inc_link_count(new_dir);
}
/*
* Like most other Unix systems, set the ctime for inodes on a
* rename.
- * ext2_dec_count() will mark the inode dirty.
+ * inode_dec_link_count() will mark the inode dirty.
*/
old_inode->i_ctime = CURRENT_TIME_SEC;
ext2_delete_entry (old_de, old_page);
- ext2_dec_count(old_inode);
+ inode_dec_link_count(old_inode);
if (dir_de) {
ext2_set_link(old_inode, dir_de, dir_page, new_dir);
- ext2_dec_count(old_dir);
+ inode_dec_link_count(old_dir);
}
return 0;
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index 832867a..7734591 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -95,11 +95,10 @@
void * dirent, filldir_t filldir)
{
int error = 0;
- unsigned long offset, blk;
- int i, num, stored;
- struct buffer_head * bh, * tmp, * bha[16];
- struct ext3_dir_entry_2 * de;
- struct super_block * sb;
+ unsigned long offset;
+ int i, stored;
+ struct ext3_dir_entry_2 *de;
+ struct super_block *sb;
int err;
struct inode *inode = filp->f_dentry->d_inode;
int ret = 0;
@@ -124,12 +123,29 @@
}
#endif
stored = 0;
- bh = NULL;
offset = filp->f_pos & (sb->s_blocksize - 1);
while (!error && !stored && filp->f_pos < inode->i_size) {
- blk = (filp->f_pos) >> EXT3_BLOCK_SIZE_BITS(sb);
- bh = ext3_bread(NULL, inode, blk, 0, &err);
+ unsigned long blk = filp->f_pos >> EXT3_BLOCK_SIZE_BITS(sb);
+ struct buffer_head map_bh;
+ struct buffer_head *bh = NULL;
+
+ map_bh.b_state = 0;
+ err = ext3_get_block_handle(NULL, inode, blk, &map_bh, 0, 0);
+ if (!err) {
+ page_cache_readahead(sb->s_bdev->bd_inode->i_mapping,
+ &filp->f_ra,
+ filp,
+ map_bh.b_blocknr >>
+ (PAGE_CACHE_SHIFT - inode->i_blkbits),
+ 1);
+ bh = ext3_bread(NULL, inode, blk, 0, &err);
+ }
+
+ /*
+ * We ignore I/O errors on directories so users have a chance
+ * of recovering data when there's a bad sector
+ */
if (!bh) {
ext3_error (sb, "ext3_readdir",
"directory #%lu contains a hole at offset %lu",
@@ -138,26 +154,6 @@
continue;
}
- /*
- * Do the readahead
- */
- if (!offset) {
- for (i = 16 >> (EXT3_BLOCK_SIZE_BITS(sb) - 9), num = 0;
- i > 0; i--) {
- tmp = ext3_getblk (NULL, inode, ++blk, 0, &err);
- if (tmp && !buffer_uptodate(tmp) &&
- !buffer_locked(tmp))
- bha[num++] = tmp;
- else
- brelse (tmp);
- }
- if (num) {
- ll_rw_block (READA, num, bha);
- for (i = 0; i < num; i++)
- brelse (bha[i]);
- }
- }
-
revalidate:
/* If the dir block has changed since the last call to
* readdir(2), then we might be pointing to an invalid
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 98e7834..59098ea 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -37,9 +37,9 @@
if ((filp->f_mode & FMODE_WRITE) &&
(atomic_read(&inode->i_writecount) == 1))
{
- down(&EXT3_I(inode)->truncate_sem);
+ mutex_lock(&EXT3_I(inode)->truncate_mutex);
ext3_discard_reservation(inode);
- up(&EXT3_I(inode)->truncate_sem);
+ mutex_unlock(&EXT3_I(inode)->truncate_mutex);
}
if (is_dx(inode) && filp->private_data)
ext3_htree_free_dir_info(filp->private_data);
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 0384e53..2c36137 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -671,7 +671,7 @@
* The BKL may not be held on entry here. Be sure to take it early.
*/
-static int
+int
ext3_get_block_handle(handle_t *handle, struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create, int extend_disksize)
{
@@ -702,7 +702,7 @@
if (!create || err == -EIO)
goto cleanup;
- down(&ei->truncate_sem);
+ mutex_lock(&ei->truncate_mutex);
/*
* If the indirect block is missing while we are reading
@@ -723,7 +723,7 @@
}
partial = ext3_get_branch(inode, depth, offsets, chain, &err);
if (!partial) {
- up(&ei->truncate_sem);
+ mutex_unlock(&ei->truncate_mutex);
if (err)
goto cleanup;
clear_buffer_new(bh_result);
@@ -759,13 +759,13 @@
err = ext3_splice_branch(handle, inode, iblock, chain,
partial, left);
/*
- * i_disksize growing is protected by truncate_sem. Don't forget to
+ * i_disksize growing is protected by truncate_mutex. Don't forget to
* protect it if you're about to implement concurrent
* ext3_get_block() -bzzz
*/
if (!err && extend_disksize && inode->i_size > ei->i_disksize)
ei->i_disksize = inode->i_size;
- up(&ei->truncate_sem);
+ mutex_unlock(&ei->truncate_mutex);
if (err)
goto cleanup;
@@ -1227,7 +1227,7 @@
* ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ...
*
* Same applies to ext3_get_block(). We will deadlock on various things like
- * lock_journal and i_truncate_sem.
+ * lock_journal and i_truncate_mutex.
*
* Setting PF_MEMALLOC here doesn't work - too many internal memory
* allocations fail.
@@ -2161,7 +2161,7 @@
* From here we block out all ext3_get_block() callers who want to
* modify the block allocation tree.
*/
- down(&ei->truncate_sem);
+ mutex_lock(&ei->truncate_mutex);
if (n == 1) { /* direct blocks */
ext3_free_data(handle, inode, NULL, i_data+offsets[0],
@@ -2228,7 +2228,7 @@
ext3_discard_reservation(inode);
- up(&ei->truncate_sem);
+ mutex_unlock(&ei->truncate_mutex);
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
ext3_mark_inode_dirty(handle, inode);
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index 556cd55..aaf1da1 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -182,7 +182,7 @@
* need to allocate reservation structure for this inode
* before set the window size
*/
- down(&ei->truncate_sem);
+ mutex_lock(&ei->truncate_mutex);
if (!ei->i_block_alloc_info)
ext3_init_block_alloc_info(inode);
@@ -190,7 +190,7 @@
struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
rsv->rsv_goal_size = rsv_window_size;
}
- up(&ei->truncate_sem);
+ mutex_unlock(&ei->truncate_mutex);
return 0;
}
case EXT3_IOC_GROUP_EXTEND: {
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 56bf765..efe5b20 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -472,7 +472,7 @@
#ifdef CONFIG_EXT3_FS_XATTR
init_rwsem(&ei->xattr_sem);
#endif
- init_MUTEX(&ei->truncate_sem);
+ mutex_init(&ei->truncate_mutex);
inode_init_once(&ei->vfs_inode);
}
}
@@ -2382,8 +2382,8 @@
* Process 1 Process 2
* ext3_create() quota_sync()
* journal_start() write_dquot()
- * DQUOT_INIT() down(dqio_sem)
- * down(dqio_sem) journal_start()
+ * DQUOT_INIT() down(dqio_mutex)
+ * down(dqio_mutex) journal_start()
*
*/
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index a1a9e04..ab171ea 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -267,19 +267,19 @@
static inline void lock_fat(struct msdos_sb_info *sbi)
{
- down(&sbi->fat_lock);
+ mutex_lock(&sbi->fat_lock);
}
static inline void unlock_fat(struct msdos_sb_info *sbi)
{
- up(&sbi->fat_lock);
+ mutex_unlock(&sbi->fat_lock);
}
void fat_ent_access_init(struct super_block *sb)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- init_MUTEX(&sbi->fat_lock);
+ mutex_init(&sbi->fat_lock);
switch (sbi->fat_bits) {
case 32:
diff --git a/fs/fcntl.c b/fs/fcntl.c
index dc4a700..03c7895 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -73,8 +73,8 @@
* orig_start..fdt->next_fd
*/
start = orig_start;
- if (start < fdt->next_fd)
- start = fdt->next_fd;
+ if (start < files->next_fd)
+ start = files->next_fd;
newfd = start;
if (start < fdt->max_fdset) {
@@ -102,9 +102,8 @@
* we reacquire the fdtable pointer and use it while holding
* the lock, no one can free it during that time.
*/
- fdt = files_fdtable(files);
- if (start <= fdt->next_fd)
- fdt->next_fd = newfd + 1;
+ if (start <= files->next_fd)
+ files->next_fd = newfd + 1;
error = newfd;
diff --git a/fs/file.c b/fs/file.c
index cea7cbe..bbc7433 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -125,7 +125,8 @@
kmem_cache_free(files_cachep, fdt->free_files);
return;
}
- if (fdt->max_fdset <= __FD_SETSIZE && fdt->max_fds <= NR_OPEN_DEFAULT) {
+ if (fdt->max_fdset <= EMBEDDED_FD_SET_SIZE &&
+ fdt->max_fds <= NR_OPEN_DEFAULT) {
/*
* The fdtable was embedded
*/
@@ -155,8 +156,9 @@
void free_fdtable(struct fdtable *fdt)
{
- if (fdt->free_files || fdt->max_fdset > __FD_SETSIZE ||
- fdt->max_fds > NR_OPEN_DEFAULT)
+ if (fdt->free_files ||
+ fdt->max_fdset > EMBEDDED_FD_SET_SIZE ||
+ fdt->max_fds > NR_OPEN_DEFAULT)
call_rcu(&fdt->rcu, free_fdtable_rcu);
}
@@ -199,7 +201,6 @@
(nfdt->max_fds - fdt->max_fds) *
sizeof(struct file *));
}
- nfdt->next_fd = fdt->next_fd;
}
/*
@@ -220,11 +221,9 @@
void free_fdset(fd_set *array, int num)
{
- int size = num / 8;
-
- if (num <= __FD_SETSIZE) /* Don't free an embedded fdset */
+ if (num <= EMBEDDED_FD_SET_SIZE) /* Don't free an embedded fdset */
return;
- else if (size <= PAGE_SIZE)
+ else if (num <= 8 * PAGE_SIZE)
kfree(array);
else
vfree(array);
@@ -237,22 +236,17 @@
fd_set *new_openset = NULL, *new_execset = NULL;
struct file **new_fds;
- fdt = kmalloc(sizeof(*fdt), GFP_KERNEL);
+ fdt = kzalloc(sizeof(*fdt), GFP_KERNEL);
if (!fdt)
goto out;
- memset(fdt, 0, sizeof(*fdt));
- nfds = __FD_SETSIZE;
+ nfds = 8 * L1_CACHE_BYTES;
/* Expand to the max in easy steps */
- do {
- if (nfds < (PAGE_SIZE * 8))
- nfds = PAGE_SIZE * 8;
- else {
- nfds = nfds * 2;
- if (nfds > NR_OPEN)
- nfds = NR_OPEN;
- }
- } while (nfds <= nr);
+ while (nfds <= nr) {
+ nfds = nfds * 2;
+ if (nfds > NR_OPEN)
+ nfds = NR_OPEN;
+ }
new_openset = alloc_fdset(nfds);
new_execset = alloc_fdset(nfds);
diff --git a/fs/file_table.c b/fs/file_table.c
index 44fabea..bcea199 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -88,6 +88,7 @@
*/
struct file *get_empty_filp(void)
{
+ struct task_struct *tsk;
static int old_max;
struct file * f;
@@ -112,13 +113,14 @@
if (security_file_alloc(f))
goto fail_sec;
- eventpoll_init_file(f);
- atomic_set(&f->f_count, 1);
- f->f_uid = current->fsuid;
- f->f_gid = current->fsgid;
- rwlock_init(&f->f_owner.lock);
- /* f->f_version: 0 */
+ tsk = current;
INIT_LIST_HEAD(&f->f_u.fu_list);
+ atomic_set(&f->f_count, 1);
+ rwlock_init(&f->f_owner.lock);
+ f->f_uid = tsk->fsuid;
+ f->f_gid = tsk->fsgid;
+ eventpoll_init_file(f);
+ /* f->f_version: 0 */
return f;
over:
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 6628c3b..4c6473a 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -9,6 +9,7 @@
//#define DBG
//#define DEBUG_LOCKS
+#include <linux/mutex.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/hpfs_fs.h>
@@ -57,8 +58,8 @@
unsigned i_ea_uid : 1; /* file's uid is stored in ea */
unsigned i_ea_gid : 1; /* file's gid is stored in ea */
unsigned i_dirty : 1;
- struct semaphore i_sem;
- struct semaphore i_parent;
+ struct mutex i_mutex;
+ struct mutex i_parent_mutex;
loff_t **i_rddir_off;
struct inode vfs_inode;
};
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index e3d17e9..56f2c33 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -186,9 +186,9 @@
kfree(hpfs_inode->i_rddir_off);
hpfs_inode->i_rddir_off = NULL;
}
- down(&hpfs_inode->i_parent);
+ mutex_lock(&hpfs_inode->i_parent_mutex);
if (!i->i_nlink) {
- up(&hpfs_inode->i_parent);
+ mutex_unlock(&hpfs_inode->i_parent_mutex);
return;
}
parent = iget_locked(i->i_sb, hpfs_inode->i_parent_dir);
@@ -199,14 +199,14 @@
hpfs_read_inode(parent);
unlock_new_inode(parent);
}
- down(&hpfs_inode->i_sem);
+ mutex_lock(&hpfs_inode->i_mutex);
hpfs_write_inode_nolock(i);
- up(&hpfs_inode->i_sem);
+ mutex_unlock(&hpfs_inode->i_mutex);
iput(parent);
} else {
mark_inode_dirty(i);
}
- up(&hpfs_inode->i_parent);
+ mutex_unlock(&hpfs_inode->i_parent_mutex);
}
void hpfs_write_inode_nolock(struct inode *i)
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 8ff8fc4..a03abb1 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -60,7 +60,7 @@
if (dee.read_only)
result->i_mode &= ~0222;
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
if (r == 1)
goto bail3;
@@ -101,11 +101,11 @@
hpfs_write_inode_nolock(result);
}
d_instantiate(dentry, result);
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
unlock_kernel();
return 0;
bail3:
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
iput(result);
bail2:
hpfs_brelse4(&qbh0);
@@ -168,7 +168,7 @@
result->i_data.a_ops = &hpfs_aops;
hpfs_i(result)->mmu_private = 0;
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
if (r == 1)
goto bail2;
@@ -193,12 +193,12 @@
hpfs_write_inode_nolock(result);
}
d_instantiate(dentry, result);
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
unlock_kernel();
return 0;
bail2:
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
iput(result);
bail1:
brelse(bh);
@@ -254,7 +254,7 @@
result->i_blocks = 1;
init_special_inode(result, mode, rdev);
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
if (r == 1)
goto bail2;
@@ -271,12 +271,12 @@
hpfs_write_inode_nolock(result);
d_instantiate(dentry, result);
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
brelse(bh);
unlock_kernel();
return 0;
bail2:
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
iput(result);
bail1:
brelse(bh);
@@ -333,7 +333,7 @@
result->i_op = &page_symlink_inode_operations;
result->i_data.a_ops = &hpfs_symlink_aops;
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
r = hpfs_add_dirent(dir, (char *)name, len, &dee, 0);
if (r == 1)
goto bail2;
@@ -352,11 +352,11 @@
hpfs_write_inode_nolock(result);
d_instantiate(dentry, result);
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
unlock_kernel();
return 0;
bail2:
- up(&hpfs_i(dir)->i_sem);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
iput(result);
bail1:
brelse(bh);
@@ -382,8 +382,8 @@
lock_kernel();
hpfs_adjust_length((char *)name, &len);
again:
- down(&hpfs_i(inode)->i_parent);
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(inode)->i_parent_mutex);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
err = -ENOENT;
de = map_dirent(dir, hpfs_i(dir)->i_dno, (char *)name, len, &dno, &qbh);
if (!de)
@@ -410,8 +410,8 @@
if (rep++)
break;
- up(&hpfs_i(dir)->i_sem);
- up(&hpfs_i(inode)->i_parent);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
+ mutex_unlock(&hpfs_i(inode)->i_parent_mutex);
d_drop(dentry);
spin_lock(&dentry->d_lock);
if (atomic_read(&dentry->d_count) > 1 ||
@@ -442,8 +442,8 @@
out1:
hpfs_brelse4(&qbh);
out:
- up(&hpfs_i(dir)->i_sem);
- up(&hpfs_i(inode)->i_parent);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
+ mutex_unlock(&hpfs_i(inode)->i_parent_mutex);
unlock_kernel();
return err;
}
@@ -463,8 +463,8 @@
hpfs_adjust_length((char *)name, &len);
lock_kernel();
- down(&hpfs_i(inode)->i_parent);
- down(&hpfs_i(dir)->i_sem);
+ mutex_lock(&hpfs_i(inode)->i_parent_mutex);
+ mutex_lock(&hpfs_i(dir)->i_mutex);
err = -ENOENT;
de = map_dirent(dir, hpfs_i(dir)->i_dno, (char *)name, len, &dno, &qbh);
if (!de)
@@ -502,8 +502,8 @@
out1:
hpfs_brelse4(&qbh);
out:
- up(&hpfs_i(dir)->i_sem);
- up(&hpfs_i(inode)->i_parent);
+ mutex_unlock(&hpfs_i(dir)->i_mutex);
+ mutex_unlock(&hpfs_i(inode)->i_parent_mutex);
unlock_kernel();
return err;
}
@@ -565,12 +565,12 @@
lock_kernel();
/* order doesn't matter, due to VFS exclusion */
- down(&hpfs_i(i)->i_parent);
+ mutex_lock(&hpfs_i(i)->i_parent_mutex);
if (new_inode)
- down(&hpfs_i(new_inode)->i_parent);
- down(&hpfs_i(old_dir)->i_sem);
+ mutex_lock(&hpfs_i(new_inode)->i_parent_mutex);
+ mutex_lock(&hpfs_i(old_dir)->i_mutex);
if (new_dir != old_dir)
- down(&hpfs_i(new_dir)->i_sem);
+ mutex_lock(&hpfs_i(new_dir)->i_mutex);
/* Erm? Moving over the empty non-busy directory is perfectly legal */
if (new_inode && S_ISDIR(new_inode->i_mode)) {
@@ -650,11 +650,11 @@
hpfs_decide_conv(i, (char *)new_name, new_len);
end1:
if (old_dir != new_dir)
- up(&hpfs_i(new_dir)->i_sem);
- up(&hpfs_i(old_dir)->i_sem);
- up(&hpfs_i(i)->i_parent);
+ mutex_unlock(&hpfs_i(new_dir)->i_mutex);
+ mutex_unlock(&hpfs_i(old_dir)->i_mutex);
+ mutex_unlock(&hpfs_i(i)->i_parent_mutex);
if (new_inode)
- up(&hpfs_i(new_inode)->i_parent);
+ mutex_unlock(&hpfs_i(new_inode)->i_parent_mutex);
unlock_kernel();
return err;
}
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 63e88d7..9488a79 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -181,8 +181,8 @@
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR) {
- init_MUTEX(&ei->i_sem);
- init_MUTEX(&ei->i_parent);
+ mutex_init(&ei->i_mutex);
+ mutex_init(&ei->i_parent_mutex);
inode_init_once(&ei->vfs_inode);
}
}
diff --git a/fs/inode.c b/fs/inode.c
index d0be615..25967b6 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -84,14 +84,14 @@
DEFINE_SPINLOCK(inode_lock);
/*
- * iprune_sem provides exclusion between the kswapd or try_to_free_pages
+ * iprune_mutex provides exclusion between the kswapd or try_to_free_pages
* icache shrinking path, and the umount path. Without this exclusion,
* by the time prune_icache calls iput for the inode whose pages it has
* been invalidating, or by the time it calls clear_inode & destroy_inode
* from its final dispose_list, the struct super_block they refer to
* (for inode->i_sb->s_op) may already have been freed and reused.
*/
-DECLARE_MUTEX(iprune_sem);
+DEFINE_MUTEX(iprune_mutex);
/*
* Statistics gathering..
@@ -206,7 +206,7 @@
i_size_ordered_init(inode);
#ifdef CONFIG_INOTIFY
INIT_LIST_HEAD(&inode->inotify_watches);
- sema_init(&inode->inotify_sem, 1);
+ mutex_init(&inode->inotify_mutex);
#endif
}
@@ -319,7 +319,7 @@
/*
* We can reschedule here without worrying about the list's
* consistency because the per-sb list of inodes must not
- * change during umount anymore, and because iprune_sem keeps
+ * change during umount anymore, and because iprune_mutex keeps
* shrink_icache_memory() away.
*/
cond_resched_lock(&inode_lock);
@@ -355,14 +355,14 @@
int busy;
LIST_HEAD(throw_away);
- down(&iprune_sem);
+ mutex_lock(&iprune_mutex);
spin_lock(&inode_lock);
inotify_unmount_inodes(&sb->s_inodes);
busy = invalidate_list(&sb->s_inodes, &throw_away);
spin_unlock(&inode_lock);
dispose_list(&throw_away);
- up(&iprune_sem);
+ mutex_unlock(&iprune_mutex);
return busy;
}
@@ -377,7 +377,7 @@
if (sb) {
/*
* no need to lock the super, get_super holds the
- * read semaphore so the filesystem cannot go away
+ * read mutex so the filesystem cannot go away
* under us (->put_super runs with the write lock
* hold).
*/
@@ -423,7 +423,7 @@
int nr_scanned;
unsigned long reap = 0;
- down(&iprune_sem);
+ mutex_lock(&iprune_mutex);
spin_lock(&inode_lock);
for (nr_scanned = 0; nr_scanned < nr_to_scan; nr_scanned++) {
struct inode *inode;
@@ -459,7 +459,7 @@
spin_unlock(&inode_lock);
dispose_list(&freeable);
- up(&iprune_sem);
+ mutex_unlock(&iprune_mutex);
if (current_is_kswapd())
mod_page_state(kswapd_inodesteal, reap);
diff --git a/fs/inotify.c b/fs/inotify.c
index 3041503..0ee39ef 100644
--- a/fs/inotify.c
+++ b/fs/inotify.c
@@ -54,10 +54,10 @@
* Lock ordering:
*
* dentry->d_lock (used to keep d_move() away from dentry->d_parent)
- * iprune_sem (synchronize shrink_icache_memory())
+ * iprune_mutex (synchronize shrink_icache_memory())
* inode_lock (protects the super_block->s_inodes list)
- * inode->inotify_sem (protects inode->inotify_watches and watches->i_list)
- * inotify_dev->sem (protects inotify_device and watches->d_list)
+ * inode->inotify_mutex (protects inode->inotify_watches and watches->i_list)
+ * inotify_dev->mutex (protects inotify_device and watches->d_list)
*/
/*
@@ -79,12 +79,12 @@
/*
* struct inotify_device - represents an inotify instance
*
- * This structure is protected by the semaphore 'sem'.
+ * This structure is protected by the mutex 'mutex'.
*/
struct inotify_device {
wait_queue_head_t wq; /* wait queue for i/o */
struct idr idr; /* idr mapping wd -> watch */
- struct semaphore sem; /* protects this bad boy */
+ struct mutex mutex; /* protects this bad boy */
struct list_head events; /* list of queued events */
struct list_head watches; /* list of watches */
atomic_t count; /* reference count */
@@ -101,7 +101,7 @@
* device. In read(), this list is walked and all events that can fit in the
* buffer are returned.
*
- * Protected by dev->sem of the device in which we are queued.
+ * Protected by dev->mutex of the device in which we are queued.
*/
struct inotify_kernel_event {
struct inotify_event event; /* the user-space event */
@@ -112,8 +112,8 @@
/*
* struct inotify_watch - represents a watch request on a specific inode
*
- * d_list is protected by dev->sem of the associated watch->dev.
- * i_list and mask are protected by inode->inotify_sem of the associated inode.
+ * d_list is protected by dev->mutex of the associated watch->dev.
+ * i_list and mask are protected by inode->inotify_mutex of the associated inode.
* dev, inode, and wd are never written to once the watch is created.
*/
struct inotify_watch {
@@ -261,7 +261,7 @@
/*
* inotify_dev_get_event - return the next event in the given dev's queue
*
- * Caller must hold dev->sem.
+ * Caller must hold dev->mutex.
*/
static inline struct inotify_kernel_event *
inotify_dev_get_event(struct inotify_device *dev)
@@ -272,7 +272,7 @@
/*
* inotify_dev_queue_event - add a new event to the given device
*
- * Caller must hold dev->sem. Can sleep (calls kernel_event()).
+ * Caller must hold dev->mutex. Can sleep (calls kernel_event()).
*/
static void inotify_dev_queue_event(struct inotify_device *dev,
struct inotify_watch *watch, u32 mask,
@@ -315,7 +315,7 @@
/*
* remove_kevent - cleans up and ultimately frees the given kevent
*
- * Caller must hold dev->sem.
+ * Caller must hold dev->mutex.
*/
static void remove_kevent(struct inotify_device *dev,
struct inotify_kernel_event *kevent)
@@ -332,7 +332,7 @@
/*
* inotify_dev_event_dequeue - destroy an event on the given device
*
- * Caller must hold dev->sem.
+ * Caller must hold dev->mutex.
*/
static void inotify_dev_event_dequeue(struct inotify_device *dev)
{
@@ -346,7 +346,7 @@
/*
* inotify_dev_get_wd - returns the next WD for use by the given dev
*
- * Callers must hold dev->sem. This function can sleep.
+ * Callers must hold dev->mutex. This function can sleep.
*/
static int inotify_dev_get_wd(struct inotify_device *dev,
struct inotify_watch *watch)
@@ -383,7 +383,7 @@
/*
* create_watch - creates a watch on the given device.
*
- * Callers must hold dev->sem. Calls inotify_dev_get_wd() so may sleep.
+ * Callers must hold dev->mutex. Calls inotify_dev_get_wd() so may sleep.
* Both 'dev' and 'inode' (by way of nameidata) need to be pinned.
*/
static struct inotify_watch *create_watch(struct inotify_device *dev,
@@ -434,7 +434,7 @@
/*
* inotify_find_dev - find the watch associated with the given inode and dev
*
- * Callers must hold inode->inotify_sem.
+ * Callers must hold inode->inotify_mutex.
*/
static struct inotify_watch *inode_find_dev(struct inode *inode,
struct inotify_device *dev)
@@ -469,7 +469,7 @@
* the IN_IGNORED event to the given device signifying that the inode is no
* longer watched.
*
- * Callers must hold both inode->inotify_sem and dev->sem. We drop a
+ * Callers must hold both inode->inotify_mutex and dev->mutex. We drop a
* reference to the inode before returning.
*
* The inode is not iput() so as to remain atomic. If the inode needs to be
@@ -507,21 +507,21 @@
if (!inotify_inode_watched(inode))
return;
- down(&inode->inotify_sem);
+ mutex_lock(&inode->inotify_mutex);
list_for_each_entry_safe(watch, next, &inode->inotify_watches, i_list) {
u32 watch_mask = watch->mask;
if (watch_mask & mask) {
struct inotify_device *dev = watch->dev;
get_inotify_watch(watch);
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
inotify_dev_queue_event(dev, watch, mask, cookie, name);
if (watch_mask & IN_ONESHOT)
remove_watch_no_event(watch, dev);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
put_inotify_watch(watch);
}
}
- up(&inode->inotify_sem);
+ mutex_unlock(&inode->inotify_mutex);
}
EXPORT_SYMBOL_GPL(inotify_inode_queue_event);
@@ -569,7 +569,7 @@
* @list: list of inodes being unmounted (sb->s_inodes)
*
* Called with inode_lock held, protecting the unmounting super block's list
- * of inodes, and with iprune_sem held, keeping shrink_icache_memory() at bay.
+ * of inodes, and with iprune_mutex held, keeping shrink_icache_memory() at bay.
* We temporarily drop inode_lock, however, and CAN block.
*/
void inotify_unmount_inodes(struct list_head *list)
@@ -618,7 +618,7 @@
* We can safely drop inode_lock here because we hold
* references on both inode and next_i. Also no new inodes
* will be added since the umount has begun. Finally,
- * iprune_sem keeps shrink_icache_memory() away.
+ * iprune_mutex keeps shrink_icache_memory() away.
*/
spin_unlock(&inode_lock);
@@ -626,16 +626,16 @@
iput(need_iput_tmp);
/* for each watch, send IN_UNMOUNT and then remove it */
- down(&inode->inotify_sem);
+ mutex_lock(&inode->inotify_mutex);
watches = &inode->inotify_watches;
list_for_each_entry_safe(watch, next_w, watches, i_list) {
struct inotify_device *dev = watch->dev;
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
inotify_dev_queue_event(dev, watch, IN_UNMOUNT,0,NULL);
remove_watch(watch, dev);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
}
- up(&inode->inotify_sem);
+ mutex_unlock(&inode->inotify_mutex);
iput(inode);
spin_lock(&inode_lock);
@@ -651,14 +651,14 @@
{
struct inotify_watch *watch, *next;
- down(&inode->inotify_sem);
+ mutex_lock(&inode->inotify_mutex);
list_for_each_entry_safe(watch, next, &inode->inotify_watches, i_list) {
struct inotify_device *dev = watch->dev;
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
remove_watch(watch, dev);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
}
- up(&inode->inotify_sem);
+ mutex_unlock(&inode->inotify_mutex);
}
EXPORT_SYMBOL_GPL(inotify_inode_is_dead);
@@ -670,10 +670,10 @@
int ret = 0;
poll_wait(file, &dev->wq, wait);
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
if (!list_empty(&dev->events))
ret = POLLIN | POLLRDNORM;
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
return ret;
}
@@ -695,9 +695,9 @@
prepare_to_wait(&dev->wq, &wait, TASK_INTERRUPTIBLE);
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
events = !list_empty(&dev->events);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
if (events) {
ret = 0;
break;
@@ -720,7 +720,7 @@
if (ret)
return ret;
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
while (1) {
struct inotify_kernel_event *kevent;
@@ -750,7 +750,7 @@
remove_kevent(dev, kevent);
}
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
return ret;
}
@@ -763,37 +763,37 @@
* Destroy all of the watches on this device. Unfortunately, not very
* pretty. We cannot do a simple iteration over the list, because we
* do not know the inode until we iterate to the watch. But we need to
- * hold inode->inotify_sem before dev->sem. The following works.
+ * hold inode->inotify_mutex before dev->mutex. The following works.
*/
while (1) {
struct inotify_watch *watch;
struct list_head *watches;
struct inode *inode;
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
watches = &dev->watches;
if (list_empty(watches)) {
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
break;
}
watch = list_entry(watches->next, struct inotify_watch, d_list);
get_inotify_watch(watch);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
inode = watch->inode;
- down(&inode->inotify_sem);
- down(&dev->sem);
+ mutex_lock(&inode->inotify_mutex);
+ mutex_lock(&dev->mutex);
remove_watch_no_event(watch, dev);
- up(&dev->sem);
- up(&inode->inotify_sem);
+ mutex_unlock(&dev->mutex);
+ mutex_unlock(&inode->inotify_mutex);
put_inotify_watch(watch);
}
/* destroy all of the events on this device */
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
while (!list_empty(&dev->events))
inotify_dev_event_dequeue(dev);
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
/* free this device: the put matching the get in inotify_init() */
put_inotify_dev(dev);
@@ -811,26 +811,26 @@
struct inotify_watch *watch;
struct inode *inode;
- down(&dev->sem);
+ mutex_lock(&dev->mutex);
watch = idr_find(&dev->idr, wd);
if (unlikely(!watch)) {
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
return -EINVAL;
}
get_inotify_watch(watch);
inode = watch->inode;
- up(&dev->sem);
+ mutex_unlock(&dev->mutex);
- down(&inode->inotify_sem);
- down(&dev->sem);
+ mutex_lock(&inode->inotify_mutex);
+ mutex_lock(&dev->mutex);
/* make sure that we did not race */
watch = idr_find(&dev->idr, wd);
if (likely(watch))
remove_watch(watch, dev);
- up(&dev->sem);
- up(&inode->inotify_sem);
+ mutex_unlock(&dev->mutex);
+ mutex_unlock(&inode->inotify_mutex);
put_inotify_watch(watch);
return 0;
@@ -905,7 +905,7 @@
INIT_LIST_HEAD(&dev->events);
INIT_LIST_HEAD(&dev->watches);
init_waitqueue_head(&dev->wq);
- sema_init(&dev->sem, 1);
+ mutex_init(&dev->mutex);
dev->event_count = 0;
dev->queue_size = 0;
dev->max_events = inotify_max_queued_events;
@@ -960,8 +960,8 @@
inode = nd.dentry->d_inode;
dev = filp->private_data;
- down(&inode->inotify_sem);
- down(&dev->sem);
+ mutex_lock(&inode->inotify_mutex);
+ mutex_lock(&dev->mutex);
if (mask & IN_MASK_ADD)
mask_add = 1;
@@ -998,8 +998,8 @@
list_add(&watch->i_list, &inode->inotify_watches);
ret = watch->wd;
out:
- up(&dev->sem);
- up(&inode->inotify_sem);
+ mutex_unlock(&dev->mutex);
+ mutex_unlock(&inode->inotify_mutex);
path_release(&nd);
fput_and_out:
fput_light(filp, fput_needed);
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 543ed54..3f5102b 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -85,7 +85,7 @@
if (journal->j_flags & JFS_ABORT)
return;
spin_unlock(&journal->j_state_lock);
- down(&journal->j_checkpoint_sem);
+ mutex_lock(&journal->j_checkpoint_mutex);
/*
* Test again, another process may have checkpointed while we
@@ -98,7 +98,7 @@
log_do_checkpoint(journal);
spin_lock(&journal->j_state_lock);
}
- up(&journal->j_checkpoint_sem);
+ mutex_unlock(&journal->j_checkpoint_mutex);
}
}
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index e4b516a..95a628d 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -659,8 +659,8 @@
init_waitqueue_head(&journal->j_wait_checkpoint);
init_waitqueue_head(&journal->j_wait_commit);
init_waitqueue_head(&journal->j_wait_updates);
- init_MUTEX(&journal->j_barrier);
- init_MUTEX(&journal->j_checkpoint_sem);
+ mutex_init(&journal->j_barrier);
+ mutex_init(&journal->j_checkpoint_mutex);
spin_lock_init(&journal->j_revoke_lock);
spin_lock_init(&journal->j_list_lock);
spin_lock_init(&journal->j_state_lock);
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index ca91797..5fc4088 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -455,7 +455,7 @@
* to make sure that we serialise special journal-locked operations
* too.
*/
- down(&journal->j_barrier);
+ mutex_lock(&journal->j_barrier);
}
/**
@@ -470,7 +470,7 @@
{
J_ASSERT(journal->j_barrier_count != 0);
- up(&journal->j_barrier);
+ mutex_unlock(&journal->j_barrier);
spin_lock(&journal->j_state_lock);
--journal->j_barrier_count;
spin_unlock(&journal->j_state_lock);
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c
index fc3855a..890d7ff 100644
--- a/fs/jffs/inode-v23.c
+++ b/fs/jffs/inode-v23.c
@@ -42,7 +42,7 @@
#include <linux/quotaops.h>
#include <linux/highmem.h>
#include <linux/vfs.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
@@ -203,7 +203,7 @@
fmc = c->fmc;
D3(printk (KERN_NOTICE "notify_change(): down biglock\n"));
- down(&fmc->biglock);
+ mutex_lock(&fmc->biglock);
f = jffs_find_file(c, inode->i_ino);
@@ -211,7 +211,7 @@
printk("jffs_setattr(): Invalid inode number: %lu\n",
inode->i_ino);
D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
- up(&fmc->biglock);
+ mutex_unlock(&fmc->biglock);
res = -EINVAL;
goto out;
});
@@ -232,7 +232,7 @@
if (!(new_node = jffs_alloc_node())) {
D(printk("jffs_setattr(): Allocation failed!\n"));
D3(printk (KERN_NOTICE "notify_change(): up biglock\n"));
- up(&fmc->biglock);
+ mutex_unlock(&fmc->biglock);
res = -ENOMEM;
goto out;
}
@@ -319,7 +319,7 @@
D(printk("jffs_notify_change(): The write failed!\n"));
jffs_free_node(new_node);
D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
goto out;
}
@@ -327,7 +327,7 @@
mark_inode_dirty(inode);
D3(printk (KERN_NOTICE "n_c(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
out:
unlock_kernel();
return res;
@@ -461,7 +461,7 @@
goto jffs_rename_end;
}
D3(printk (KERN_NOTICE "rename(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
/* Create a node and initialize as much as needed. */
result = -ENOMEM;
if (!(node = jffs_alloc_node())) {
@@ -555,7 +555,7 @@
jffs_rename_end:
D3(printk (KERN_NOTICE "rename(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return result;
} /* jffs_rename() */
@@ -574,14 +574,14 @@
int ddino;
lock_kernel();
D3(printk (KERN_NOTICE "readdir(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
D2(printk("jffs_readdir(): inode: 0x%p, filp: 0x%p\n", inode, filp));
if (filp->f_pos == 0) {
D3(printk("jffs_readdir(): \".\" %lu\n", inode->i_ino));
if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0) {
D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return 0;
}
@@ -598,7 +598,7 @@
D3(printk("jffs_readdir(): \"..\" %u\n", ddino));
if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) {
D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return 0;
}
@@ -617,7 +617,7 @@
if (filldir(dirent, f->name, f->nsize,
filp->f_pos , f->ino, DT_UNKNOWN) < 0) {
D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return 0;
}
@@ -627,7 +627,7 @@
} while(f && f->deleted);
}
D3(printk (KERN_NOTICE "readdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return filp->f_pos;
} /* jffs_readdir() */
@@ -660,7 +660,7 @@
});
D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
r = -ENAMETOOLONG;
if (len > JFFS_MAX_NAME_LEN) {
@@ -683,31 +683,31 @@
if ((len == 1) && (name[0] == '.')) {
D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
if (!(inode = iget(dir->i_sb, d->ino))) {
D(printk("jffs_lookup(): . iget() ==> NULL\n"));
goto jffs_lookup_end_no_biglock;
}
D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
} else if ((len == 2) && (name[0] == '.') && (name[1] == '.')) {
D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
if (!(inode = iget(dir->i_sb, d->pino))) {
D(printk("jffs_lookup(): .. iget() ==> NULL\n"));
goto jffs_lookup_end_no_biglock;
}
D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
} else if ((f = jffs_find_child(d, name, len))) {
D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
if (!(inode = iget(dir->i_sb, f->ino))) {
D(printk("jffs_lookup(): iget() ==> NULL\n"));
goto jffs_lookup_end_no_biglock;
}
D3(printk (KERN_NOTICE "lookup(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
} else {
D3(printk("jffs_lookup(): Couldn't find the file. "
"f = 0x%p, name = \"%s\", d = 0x%p, d->ino = %u\n",
@@ -717,13 +717,13 @@
d_add(dentry, inode);
D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return NULL;
jffs_lookup_end:
D3(printk (KERN_NOTICE "lookup(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
jffs_lookup_end_no_biglock:
unlock_kernel();
@@ -753,7 +753,7 @@
ClearPageError(page);
D3(printk (KERN_NOTICE "readpage(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
read_len = 0;
result = 0;
@@ -782,7 +782,7 @@
kunmap(page);
D3(printk (KERN_NOTICE "readpage(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
if (result) {
SetPageError(page);
@@ -839,7 +839,7 @@
c = dir_f->c;
D3(printk (KERN_NOTICE "mkdir(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
dir_mode = S_IFDIR | (mode & (S_IRWXUGO|S_ISVTX)
& ~current->fs->umask);
@@ -906,7 +906,7 @@
result = 0;
jffs_mkdir_end:
D3(printk (KERN_NOTICE "mkdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return result;
} /* jffs_mkdir() */
@@ -921,10 +921,10 @@
D3(printk("***jffs_rmdir()\n"));
D3(printk (KERN_NOTICE "rmdir(): down biglock\n"));
lock_kernel();
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
ret = jffs_remove(dir, dentry, S_IFDIR);
D3(printk (KERN_NOTICE "rmdir(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return ret;
}
@@ -940,10 +940,10 @@
lock_kernel();
D3(printk("***jffs_unlink()\n"));
D3(printk (KERN_NOTICE "unlink(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
ret = jffs_remove(dir, dentry, 0);
D3(printk (KERN_NOTICE "unlink(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return ret;
}
@@ -1086,7 +1086,7 @@
c = dir_f->c;
D3(printk (KERN_NOTICE "mknod(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
/* Create and initialize a new node. */
if (!(node = jffs_alloc_node())) {
@@ -1152,7 +1152,7 @@
jffs_mknod_end:
D3(printk (KERN_NOTICE "mknod(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return result;
} /* jffs_mknod() */
@@ -1203,7 +1203,7 @@
return -ENOMEM;
}
D3(printk (KERN_NOTICE "symlink(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
node->data_offset = 0;
node->removed_size = 0;
@@ -1253,7 +1253,7 @@
d_instantiate(dentry, inode);
jffs_symlink_end:
D3(printk (KERN_NOTICE "symlink(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return err;
} /* jffs_symlink() */
@@ -1306,7 +1306,7 @@
return -ENOMEM;
}
D3(printk (KERN_NOTICE "create(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
node->data_offset = 0;
node->removed_size = 0;
@@ -1359,7 +1359,7 @@
d_instantiate(dentry, inode);
jffs_create_end:
D3(printk (KERN_NOTICE "create(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
unlock_kernel();
return err;
} /* jffs_create() */
@@ -1423,7 +1423,7 @@
thiscount = min(c->fmc->max_chunk_size - sizeof(struct jffs_raw_inode), count);
D3(printk (KERN_NOTICE "file_write(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
/* Urgh. POSIX says we can do short writes if we feel like it.
* In practice, we can't. Nothing will cope. So we loop until
@@ -1511,7 +1511,7 @@
}
out:
D3(printk (KERN_NOTICE "file_write(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
/* Fix things in the real inode. */
if (pos > inode->i_size) {
@@ -1567,7 +1567,7 @@
return -EIO;
}
D3(printk (KERN_NOTICE "ioctl(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
switch (cmd) {
case JFFS_PRINT_HASH:
@@ -1609,7 +1609,7 @@
ret = -ENOTTY;
}
D3(printk (KERN_NOTICE "ioctl(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
return ret;
} /* jffs_ioctl() */
@@ -1685,12 +1685,12 @@
}
c = (struct jffs_control *)inode->i_sb->s_fs_info;
D3(printk (KERN_NOTICE "read_inode(): down biglock\n"));
- down(&c->fmc->biglock);
+ mutex_lock(&c->fmc->biglock);
if (!(f = jffs_find_file(c, inode->i_ino))) {
D(printk("jffs_read_inode(): No such inode (%lu).\n",
inode->i_ino));
D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
return;
}
inode->u.generic_ip = (void *)f;
@@ -1732,7 +1732,7 @@
}
D3(printk (KERN_NOTICE "read_inode(): up biglock\n"));
- up(&c->fmc->biglock);
+ mutex_unlock(&c->fmc->biglock);
}
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c
index ce7b54b..0ef207d 100644
--- a/fs/jffs/intrep.c
+++ b/fs/jffs/intrep.c
@@ -62,7 +62,7 @@
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/pagemap.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include <asm/byteorder.h>
#include <linux/smp_lock.h>
#include <linux/time.h>
@@ -3416,7 +3416,7 @@
D1(printk (KERN_NOTICE "jffs_garbage_collect_thread(): collecting.\n"));
D3(printk (KERN_NOTICE "g_c_thread(): down biglock\n"));
- down(&fmc->biglock);
+ mutex_lock(&fmc->biglock);
D1(printk("***jffs_garbage_collect_thread(): round #%u, "
"fmc->dirty_size = %u\n", i++, fmc->dirty_size));
@@ -3447,6 +3447,6 @@
gc_end:
D3(printk (KERN_NOTICE "g_c_thread(): up biglock\n"));
- up(&fmc->biglock);
+ mutex_unlock(&fmc->biglock);
} /* for (;;) */
} /* jffs_garbage_collect_thread() */
diff --git a/fs/jffs/jffs_fm.c b/fs/jffs/jffs_fm.c
index 6da13b30..7d8ca1a 100644
--- a/fs/jffs/jffs_fm.c
+++ b/fs/jffs/jffs_fm.c
@@ -139,7 +139,7 @@
fmc->tail = NULL;
fmc->head_extra = NULL;
fmc->tail_extra = NULL;
- init_MUTEX(&fmc->biglock);
+ mutex_init(&fmc->biglock);
return fmc;
}
diff --git a/fs/jffs/jffs_fm.h b/fs/jffs/jffs_fm.h
index f64151e..c794d92 100644
--- a/fs/jffs/jffs_fm.h
+++ b/fs/jffs/jffs_fm.h
@@ -20,10 +20,11 @@
#ifndef __LINUX_JFFS_FM_H__
#define __LINUX_JFFS_FM_H__
+#include <linux/config.h>
#include <linux/types.h>
#include <linux/jffs.h>
#include <linux/mtd/mtd.h>
-#include <linux/config.h>
+#include <linux/mutex.h>
/* The alignment between two nodes in the flash memory. */
#define JFFS_ALIGN_SIZE 4
@@ -97,7 +98,7 @@
struct jffs_fm *tail;
struct jffs_fm *head_extra;
struct jffs_fm *tail_extra;
- struct semaphore biglock;
+ struct mutex biglock;
};
/* Notice the two members head_extra and tail_extra in the jffs_control
diff --git a/fs/libfs.c b/fs/libfs.c
index 71fd08f..4fdeace 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -7,6 +7,8 @@
#include <linux/pagemap.h>
#include <linux/mount.h>
#include <linux/vfs.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
@@ -530,7 +532,7 @@
char set_buf[24];
void *data;
const char *fmt; /* format for read operation */
- struct semaphore sem; /* protects access to these buffers */
+ struct mutex mutex; /* protects access to these buffers */
};
/* simple_attr_open is called by an actual attribute open file operation
@@ -549,7 +551,7 @@
attr->set = set;
attr->data = inode->u.generic_ip;
attr->fmt = fmt;
- init_MUTEX(&attr->sem);
+ mutex_init(&attr->mutex);
file->private_data = attr;
@@ -575,7 +577,7 @@
if (!attr->get)
return -EACCES;
- down(&attr->sem);
+ mutex_lock(&attr->mutex);
if (*ppos) /* continued read */
size = strlen(attr->get_buf);
else /* first read */
@@ -584,7 +586,7 @@
(unsigned long long)attr->get(attr->data));
ret = simple_read_from_buffer(buf, len, ppos, attr->get_buf, size);
- up(&attr->sem);
+ mutex_unlock(&attr->mutex);
return ret;
}
@@ -602,7 +604,7 @@
if (!attr->set)
return -EACCES;
- down(&attr->sem);
+ mutex_lock(&attr->mutex);
ret = -EFAULT;
size = min(sizeof(attr->set_buf) - 1, len);
if (copy_from_user(attr->set_buf, buf, size))
@@ -613,7 +615,7 @@
val = simple_strtol(attr->set_buf, NULL, 0);
attr->set(attr->data, val);
out:
- up(&attr->sem);
+ mutex_unlock(&attr->mutex);
return ret;
}
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index b25bca5..5b6a454 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -6,18 +6,6 @@
#include "minix.h"
-static inline void inc_count(struct inode *inode)
-{
- inode->i_nlink++;
- mark_inode_dirty(inode);
-}
-
-static inline void dec_count(struct inode *inode)
-{
- inode->i_nlink--;
- mark_inode_dirty(inode);
-}
-
static int add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = minix_add_link(dentry, inode);
@@ -25,7 +13,7 @@
d_instantiate(dentry, inode);
return 0;
}
- dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
return err;
}
@@ -125,7 +113,7 @@
return err;
out_fail:
- dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
goto out;
}
@@ -139,7 +127,7 @@
return -EMLINK;
inode->i_ctime = CURRENT_TIME_SEC;
- inc_count(inode);
+ inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
return add_nondir(dentry, inode);
}
@@ -152,7 +140,7 @@
if (dir->i_nlink >= minix_sb(dir->i_sb)->s_link_max)
goto out;
- inc_count(dir);
+ inode_inc_link_count(dir);
inode = minix_new_inode(dir, &err);
if (!inode)
@@ -163,7 +151,7 @@
inode->i_mode |= S_ISGID;
minix_set_inode(inode, 0);
- inc_count(inode);
+ inode_inc_link_count(inode);
err = minix_make_empty(inode, dir);
if (err)
@@ -178,11 +166,11 @@
return err;
out_fail:
- dec_count(inode);
- dec_count(inode);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
out_dir:
- dec_count(dir);
+ inode_dec_link_count(dir);
goto out;
}
@@ -202,7 +190,7 @@
goto end_unlink;
inode->i_ctime = dir->i_ctime;
- dec_count(inode);
+ inode_dec_link_count(inode);
end_unlink:
return err;
}
@@ -215,8 +203,8 @@
if (minix_empty_dir(inode)) {
err = minix_unlink(dir, dentry);
if (!err) {
- dec_count(dir);
- dec_count(inode);
+ inode_dec_link_count(dir);
+ inode_dec_link_count(inode);
}
}
return err;
@@ -257,34 +245,34 @@
new_de = minix_find_entry(new_dentry, &new_page);
if (!new_de)
goto out_dir;
- inc_count(old_inode);
+ inode_inc_link_count(old_inode);
minix_set_link(new_de, new_page, old_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
new_inode->i_nlink--;
- dec_count(new_inode);
+ inode_dec_link_count(new_inode);
} else {
if (dir_de) {
err = -EMLINK;
if (new_dir->i_nlink >= info->s_link_max)
goto out_dir;
}
- inc_count(old_inode);
+ inode_inc_link_count(old_inode);
err = minix_add_link(new_dentry, old_inode);
if (err) {
- dec_count(old_inode);
+ inode_dec_link_count(old_inode);
goto out_dir;
}
if (dir_de)
- inc_count(new_dir);
+ inode_inc_link_count(new_dir);
}
minix_delete_entry(old_de, old_page);
- dec_count(old_inode);
+ inode_dec_link_count(old_inode);
if (dir_de) {
minix_set_link(dir_de, dir_page, new_dir);
- dec_count(old_dir);
+ inode_dec_link_count(old_dir);
}
return 0;
diff --git a/fs/namei.c b/fs/namei.c
index 8dc2b03..c72b940 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -104,7 +104,7 @@
*/
/*
* [Sep 2001 AV] Single-semaphore locking scheme (kudos to David Holland)
- * implemented. Let's see if raised priority of ->s_vfs_rename_sem gives
+ * implemented. Let's see if raised priority of ->s_vfs_rename_mutex gives
* any extra contention...
*/
@@ -1422,7 +1422,7 @@
return NULL;
}
- down(&p1->d_inode->i_sb->s_vfs_rename_sem);
+ mutex_lock(&p1->d_inode->i_sb->s_vfs_rename_mutex);
for (p = p1; p->d_parent != p; p = p->d_parent) {
if (p->d_parent == p2) {
@@ -1450,7 +1450,7 @@
mutex_unlock(&p1->d_inode->i_mutex);
if (p1 != p2) {
mutex_unlock(&p2->d_inode->i_mutex);
- up(&p1->d_inode->i_sb->s_vfs_rename_sem);
+ mutex_unlock(&p1->d_inode->i_sb->s_vfs_rename_mutex);
}
}
@@ -2277,17 +2277,17 @@
* a) we can get into loop creation. Check is done in is_subdir().
* b) race potential - two innocent renames can create a loop together.
* That's where 4.4 screws up. Current fix: serialization on
- * sb->s_vfs_rename_sem. We might be more accurate, but that's another
+ * sb->s_vfs_rename_mutex. We might be more accurate, but that's another
* story.
* c) we have to lock _three_ objects - parents and victim (if it exists).
* And that - after we got ->i_mutex on parents (until then we don't know
* whether the target exists). Solution: try to be smart with locking
* order for inodes. We rely on the fact that tree topology may change
- * only under ->s_vfs_rename_sem _and_ that parent of the object we
+ * only under ->s_vfs_rename_mutex _and_ that parent of the object we
* move will be locked. Thus we can rank directories by the tree
* (ancestors first) and rank all non-directories after them.
* That works since everybody except rename does "lock parent, lookup,
- * lock child" and rename is under ->s_vfs_rename_sem.
+ * lock child" and rename is under ->s_vfs_rename_mutex.
* HOWEVER, it relies on the assumption that any object with ->lookup()
* has no more than 1 dentry. If "hybrid" objects will ever appear,
* we'd better make sure that there's no link(2) for them.
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index 973b444..ebdad8f 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -46,7 +46,7 @@
NCP_FINFO(inode)->volNumber,
NCP_FINFO(inode)->dirEntNum);
error = -EACCES;
- down(&NCP_FINFO(inode)->open_sem);
+ mutex_lock(&NCP_FINFO(inode)->open_mutex);
if (!atomic_read(&NCP_FINFO(inode)->opened)) {
struct ncp_entry_info finfo;
int result;
@@ -93,7 +93,7 @@
}
out_unlock:
- up(&NCP_FINFO(inode)->open_sem);
+ mutex_unlock(&NCP_FINFO(inode)->open_mutex);
out:
return error;
}
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index d277a58..0b521d3 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -63,7 +63,7 @@
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR) {
- init_MUTEX(&ei->open_sem);
+ mutex_init(&ei->open_mutex);
inode_init_once(&ei->vfs_inode);
}
}
@@ -520,7 +520,7 @@
}
/* server->lock = 0; */
- init_MUTEX(&server->sem);
+ mutex_init(&server->mutex);
server->packet = NULL;
/* server->buffer_size = 0; */
/* server->conn_status = 0; */
@@ -557,7 +557,7 @@
server->dentry_ttl = 0; /* no caching */
INIT_LIST_HEAD(&server->tx.requests);
- init_MUTEX(&server->rcv.creq_sem);
+ mutex_init(&server->rcv.creq_mutex);
server->tx.creq = NULL;
server->rcv.creq = NULL;
server->data_ready = sock->sk->sk_data_ready;
diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
index c755e18..d9ebf64 100644
--- a/fs/ncpfs/ncplib_kernel.c
+++ b/fs/ncpfs/ncplib_kernel.c
@@ -291,7 +291,7 @@
int err;
err = 0;
- down(&NCP_FINFO(inode)->open_sem);
+ mutex_lock(&NCP_FINFO(inode)->open_mutex);
if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
atomic_set(&NCP_FINFO(inode)->opened, 0);
err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
@@ -301,7 +301,7 @@
NCP_FINFO(inode)->volNumber,
NCP_FINFO(inode)->dirEntNum, err);
}
- up(&NCP_FINFO(inode)->open_sem);
+ mutex_unlock(&NCP_FINFO(inode)->open_mutex);
return err;
}
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index 6593a5c..8783eb7 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -171,9 +171,9 @@
static inline void ncp_abort_request(struct ncp_server *server, struct ncp_request_reply *req, int err)
{
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
__ncp_abort_request(server, req, err);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
}
static inline void __ncptcp_abort(struct ncp_server *server)
@@ -303,20 +303,20 @@
static int ncp_add_request(struct ncp_server *server, struct ncp_request_reply *req)
{
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
if (!ncp_conn_valid(server)) {
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
printk(KERN_ERR "ncpfs: tcp: Server died\n");
return -EIO;
}
if (server->tx.creq || server->rcv.creq) {
req->status = RQ_QUEUED;
list_add_tail(&req->req, &server->tx.requests);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
return 0;
}
__ncp_start_request(server, req);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
return 0;
}
@@ -400,7 +400,7 @@
info_server(server, 0, server->unexpected_packet.data, result);
continue;
}
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
req = server->rcv.creq;
if (req && (req->tx_type == NCP_ALLOC_SLOT_REQUEST || (server->sequence == reply.sequence &&
server->connection == get_conn_number(&reply)))) {
@@ -430,11 +430,11 @@
server->rcv.creq = NULL;
ncp_finish_request(req, result);
__ncp_next_request(server);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
continue;
}
}
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
}
drop:;
_recv(sock, &reply, sizeof(reply), MSG_DONTWAIT);
@@ -472,9 +472,9 @@
void ncpdgram_timeout_proc(void *s)
{
struct ncp_server *server = s;
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
__ncpdgram_timeout_proc(server);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
}
static inline void ncp_init_req(struct ncp_request_reply* req)
@@ -657,18 +657,18 @@
{
struct ncp_server *server = s;
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
__ncptcp_rcv_proc(server);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
}
void ncp_tcp_tx_proc(void *s)
{
struct ncp_server *server = s;
- down(&server->rcv.creq_sem);
+ mutex_lock(&server->rcv.creq_mutex);
__ncptcp_try_send(server);
- up(&server->rcv.creq_sem);
+ mutex_unlock(&server->rcv.creq_mutex);
}
static int do_ncp_rpc_call(struct ncp_server *server, int size,
@@ -833,7 +833,7 @@
void ncp_lock_server(struct ncp_server *server)
{
- down(&server->sem);
+ mutex_lock(&server->mutex);
if (server->lock)
printk(KERN_WARNING "ncp_lock_server: was locked!\n");
server->lock = 1;
@@ -846,5 +846,5 @@
return;
}
server->lock = 0;
- up(&server->sem);
+ mutex_unlock(&server->mutex);
}
diff --git a/fs/open.c b/fs/open.c
index 70e0230..1091dad 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -973,7 +973,7 @@
fdt = files_fdtable(files);
fd = find_next_zero_bit(fdt->open_fds->fds_bits,
fdt->max_fdset,
- fdt->next_fd);
+ files->next_fd);
/*
* N.B. For clone tasks sharing a files structure, this test
@@ -998,7 +998,7 @@
FD_SET(fd, fdt->open_fds);
FD_CLR(fd, fdt->close_on_exec);
- fdt->next_fd = fd + 1;
+ files->next_fd = fd + 1;
#if 1
/* Sanity check */
if (fdt->fd[fd] != NULL) {
@@ -1019,8 +1019,8 @@
{
struct fdtable *fdt = files_fdtable(files);
__FD_CLR(fd, fdt->open_fds);
- if (fd < fdt->next_fd)
- fdt->next_fd = fd;
+ if (fd < files->next_fd)
+ files->next_fd = fd;
}
void fastcall put_unused_fd(unsigned int fd)
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 1d24fea..826c131 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -312,7 +312,7 @@
case BLK_HDR:
info->state = BLK_LIST;
(*pos)++;
- break;
+ /*fallthrough*/
case BLK_LIST:
if (get_blkdev_info(info->blkdev,&idummy,&ndummy)) {
/*
diff --git a/fs/qnx4/file.c b/fs/qnx4/file.c
index b471315..c33963f 100644
--- a/fs/qnx4/file.c
+++ b/fs/qnx4/file.c
@@ -12,10 +12,7 @@
* 27-06-1998 by Frank Denis : file overwriting.
*/
-#include <linux/config.h>
-#include <linux/types.h>
#include <linux/fs.h>
-#include <linux/time.h>
#include <linux/qnx4_fs.h>
/*
diff --git a/fs/quota.c b/fs/quota.c
index ba9e0bf..d6a2be8 100644
--- a/fs/quota.c
+++ b/fs/quota.c
@@ -170,10 +170,10 @@
/* Now when everything is written we can discard the pagecache so
* that userspace sees the changes. We need i_mutex and so we could
- * not do it inside dqonoff_sem. Moreover we need to be carefull
+ * not do it inside dqonoff_mutex. Moreover we need to be carefull
* about races with quotaoff() (that is the reason why we have own
* reference to inode). */
- down(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
discard[cnt] = NULL;
if (type != -1 && cnt != type)
@@ -182,7 +182,7 @@
continue;
discard[cnt] = igrab(sb_dqopt(sb)->files[cnt]);
}
- up(&sb_dqopt(sb)->dqonoff_sem);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (discard[cnt]) {
mutex_lock(&discard[cnt]->i_mutex);
diff --git a/fs/quota_v2.c b/fs/quota_v2.c
index b4199ec..c519a58 100644
--- a/fs/quota_v2.c
+++ b/fs/quota_v2.c
@@ -394,7 +394,7 @@
ssize_t ret;
struct v2_disk_dqblk ddquot, empty;
- /* dq_off is guarded by dqio_sem */
+ /* dq_off is guarded by dqio_mutex */
if (!dquot->dq_off)
if ((ret = dq_insert_tree(dquot)) < 0) {
printk(KERN_ERR "VFS: Error %zd occurred while creating quota.\n", ret);
diff --git a/fs/ramfs/file-mmu.c b/fs/ramfs/file-mmu.c
index 2115383..6ada209 100644
--- a/fs/ramfs/file-mmu.c
+++ b/fs/ramfs/file-mmu.c
@@ -24,18 +24,7 @@
* caches is sufficient.
*/
-#include <linux/module.h>
#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/highmem.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/smp_lock.h>
-#include <linux/backing-dev.h>
-#include <linux/ramfs.h>
-
-#include <asm/uaccess.h>
-#include "internal.h"
struct address_space_operations ramfs_aops = {
.readpage = simple_readpage,
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 7c40570..555b9ac 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -37,7 +37,7 @@
file->private_data = p;
}
memset(p, 0, sizeof(*p));
- sema_init(&p->sem, 1);
+ mutex_init(&p->lock);
p->op = op;
/*
@@ -71,7 +71,7 @@
void *p;
int err = 0;
- down(&m->sem);
+ mutex_lock(&m->lock);
/*
* seq_file->op->..m_start/m_stop/m_next may do special actions
* or optimisations based on the file->f_version, so we want to
@@ -164,7 +164,7 @@
else
*ppos += copied;
file->f_version = m->version;
- up(&m->sem);
+ mutex_unlock(&m->lock);
return copied;
Enomem:
err = -ENOMEM;
@@ -237,7 +237,7 @@
struct seq_file *m = (struct seq_file *)file->private_data;
long long retval = -EINVAL;
- down(&m->sem);
+ mutex_lock(&m->lock);
m->version = file->f_version;
switch (origin) {
case 1:
@@ -260,7 +260,7 @@
}
}
}
- up(&m->sem);
+ mutex_unlock(&m->lock);
file->f_version = m->version;
return retval;
}
diff --git a/fs/super.c b/fs/super.c
index e20b558..425861c 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -76,9 +76,9 @@
down_write(&s->s_umount);
s->s_count = S_BIAS;
atomic_set(&s->s_active, 1);
- sema_init(&s->s_vfs_rename_sem,1);
- sema_init(&s->s_dquot.dqio_sem, 1);
- sema_init(&s->s_dquot.dqonoff_sem, 1);
+ mutex_init(&s->s_vfs_rename_mutex);
+ mutex_init(&s->s_dquot.dqio_mutex);
+ mutex_init(&s->s_dquot.dqonoff_mutex);
init_rwsem(&s->s_dquot.dqptr_sem);
init_waitqueue_head(&s->s_wait_unfrozen);
s->s_maxbytes = MAX_NON_LFS;
@@ -693,9 +693,9 @@
* will protect the lockfs code from trying to start a snapshot
* while we are mounting
*/
- down(&bdev->bd_mount_sem);
+ mutex_lock(&bdev->bd_mount_mutex);
s = sget(fs_type, test_bdev_super, set_bdev_super, bdev);
- up(&bdev->bd_mount_sem);
+ mutex_unlock(&bdev->bd_mount_mutex);
if (IS_ERR(s))
goto out;
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 7f0e4b5..b8a73f7 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -16,18 +16,6 @@
#include <linux/smp_lock.h>
#include "sysv.h"
-static inline void inc_count(struct inode *inode)
-{
- inode->i_nlink++;
- mark_inode_dirty(inode);
-}
-
-static inline void dec_count(struct inode *inode)
-{
- inode->i_nlink--;
- mark_inode_dirty(inode);
-}
-
static int add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = sysv_add_link(dentry, inode);
@@ -35,7 +23,7 @@
d_instantiate(dentry, inode);
return 0;
}
- dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
return err;
}
@@ -124,7 +112,7 @@
return err;
out_fail:
- dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
goto out;
}
@@ -138,7 +126,7 @@
return -EMLINK;
inode->i_ctime = CURRENT_TIME_SEC;
- inc_count(inode);
+ inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
return add_nondir(dentry, inode);
@@ -151,7 +139,7 @@
if (dir->i_nlink >= SYSV_SB(dir->i_sb)->s_link_max)
goto out;
- inc_count(dir);
+ inode_inc_link_count(dir);
inode = sysv_new_inode(dir, S_IFDIR|mode);
err = PTR_ERR(inode);
@@ -160,7 +148,7 @@
sysv_set_inode(inode, 0);
- inc_count(inode);
+ inode_inc_link_count(inode);
err = sysv_make_empty(inode, dir);
if (err)
@@ -175,11 +163,11 @@
return err;
out_fail:
- dec_count(inode);
- dec_count(inode);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
out_dir:
- dec_count(dir);
+ inode_dec_link_count(dir);
goto out;
}
@@ -199,7 +187,7 @@
goto out;
inode->i_ctime = dir->i_ctime;
- dec_count(inode);
+ inode_dec_link_count(inode);
out:
return err;
}
@@ -213,8 +201,8 @@
err = sysv_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
- dec_count(inode);
- dec_count(dir);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(dir);
}
}
return err;
@@ -258,34 +246,34 @@
new_de = sysv_find_entry(new_dentry, &new_page);
if (!new_de)
goto out_dir;
- inc_count(old_inode);
+ inode_inc_link_count(old_inode);
sysv_set_link(new_de, new_page, old_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
new_inode->i_nlink--;
- dec_count(new_inode);
+ inode_dec_link_count(new_inode);
} else {
if (dir_de) {
err = -EMLINK;
if (new_dir->i_nlink >= SYSV_SB(new_dir->i_sb)->s_link_max)
goto out_dir;
}
- inc_count(old_inode);
+ inode_inc_link_count(old_inode);
err = sysv_add_link(new_dentry, old_inode);
if (err) {
- dec_count(old_inode);
+ inode_dec_link_count(old_inode);
goto out_dir;
}
if (dir_de)
- inc_count(new_dir);
+ inode_inc_link_count(new_dir);
}
sysv_delete_entry(old_de, old_page);
- dec_count(old_inode);
+ inode_dec_link_count(old_inode);
if (dir_de) {
sysv_set_link(dir_de, dir_page, new_dir);
- dec_count(old_dir);
+ inode_dec_link_count(old_dir);
}
return 0;
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index 201049a..ea521f8 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -152,7 +152,7 @@
int bitmap_nr;
unsigned long overflow;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
if (bloc.logicalBlockNum < 0 ||
(bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum))
{
@@ -211,7 +211,7 @@
sb->s_dirt = 1;
if (UDF_SB_LVIDBH(sb))
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return;
}
@@ -226,7 +226,7 @@
int nr_groups, bitmap_nr;
struct buffer_head *bh;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
if (first_block < 0 || first_block >= UDF_SB_PARTLEN(sb, partition))
goto out;
@@ -275,7 +275,7 @@
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
sb->s_dirt = 1;
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return alloc_count;
}
@@ -291,7 +291,7 @@
int newblock = 0;
*err = -ENOSPC;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
repeat:
if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
@@ -364,7 +364,7 @@
}
if (i >= (nr_groups*2))
{
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return newblock;
}
if (bit < sb->s_blocksize << 3)
@@ -373,7 +373,7 @@
bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3, group_start << 3);
if (bit >= sb->s_blocksize << 3)
{
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return 0;
}
@@ -387,7 +387,7 @@
*/
if (inode && DQUOT_ALLOC_BLOCK(inode, 1))
{
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
*err = -EDQUOT;
return 0;
}
@@ -410,13 +410,13 @@
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
sb->s_dirt = 1;
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
*err = 0;
return newblock;
error_return:
*err = -EIO;
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return 0;
}
@@ -433,7 +433,7 @@
int8_t etype;
int i;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
if (bloc.logicalBlockNum < 0 ||
(bloc.logicalBlockNum + count) > UDF_SB_PARTLEN(sb, bloc.partitionReferenceNum))
{
@@ -666,7 +666,7 @@
error_return:
sb->s_dirt = 1;
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return;
}
@@ -692,7 +692,7 @@
else
return 0;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
extoffset = sizeof(struct unallocSpaceEntry);
bloc = UDF_I_LOCATION(table);
@@ -736,7 +736,7 @@
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
sb->s_dirt = 1;
}
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return alloc_count;
}
@@ -761,7 +761,7 @@
else
return newblock;
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
if (goal < 0 || goal >= UDF_SB_PARTLEN(sb, partition))
goal = 0;
@@ -811,7 +811,7 @@
if (spread == 0xFFFFFFFF)
{
udf_release_data(goal_bh);
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
return 0;
}
@@ -827,7 +827,7 @@
if (inode && DQUOT_ALLOC_BLOCK(inode, 1))
{
udf_release_data(goal_bh);
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
*err = -EDQUOT;
return 0;
}
@@ -846,7 +846,7 @@
}
sb->s_dirt = 1;
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
*err = 0;
return newblock;
}
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index c9b707b..3873c67 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -42,7 +42,7 @@
clear_inode(inode);
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
if (sbi->s_lvidbh) {
if (S_ISDIR(inode->i_mode))
UDF_SB_LVIDIU(sb)->numDirs =
@@ -53,7 +53,7 @@
mark_buffer_dirty(sbi->s_lvidbh);
}
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
}
@@ -83,7 +83,7 @@
return NULL;
}
- down(&sbi->s_alloc_sem);
+ mutex_lock(&sbi->s_alloc_mutex);
UDF_I_UNIQUE(inode) = 0;
UDF_I_LENEXTENTS(inode) = 0;
UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
@@ -148,7 +148,7 @@
UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb);
insert_inode_hash(inode);
mark_inode_dirty(inode);
- up(&sbi->s_alloc_sem);
+ mutex_unlock(&sbi->s_alloc_mutex);
if (DQUOT_ALLOC_INODE(inode))
{
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 368d8f8..9303c50 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1515,7 +1515,7 @@
sb->s_fs_info = sbi;
memset(UDF_SB(sb), 0x00, sizeof(struct udf_sb_info));
- init_MUTEX(&sbi->s_alloc_sem);
+ mutex_init(&sbi->s_alloc_mutex);
if (!udf_parse_options((char *)options, &uopt))
goto error_out;
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index ed69d7f..62ad481 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -23,18 +23,8 @@
* ext2 fs regular file handling primitives
*/
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/ufs_fs.h>
-#include <linux/fcntl.h>
-#include <linux/time.h>
-#include <linux/stat.h>
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/smp_lock.h>
/*
* We have mostly NULL's here: the current defaults are ok for
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 2958cde..8d5f98a 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -43,18 +43,6 @@
#define UFSD(x)
#endif
-static inline void ufs_inc_count(struct inode *inode)
-{
- inode->i_nlink++;
- mark_inode_dirty(inode);
-}
-
-static inline void ufs_dec_count(struct inode *inode)
-{
- inode->i_nlink--;
- mark_inode_dirty(inode);
-}
-
static inline int ufs_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = ufs_add_link(dentry, inode);
@@ -62,7 +50,7 @@
d_instantiate(dentry, inode);
return 0;
}
- ufs_dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
return err;
}
@@ -173,7 +161,7 @@
return err;
out_fail:
- ufs_dec_count(inode);
+ inode_dec_link_count(inode);
iput(inode);
goto out;
}
@@ -191,7 +179,7 @@
}
inode->i_ctime = CURRENT_TIME_SEC;
- ufs_inc_count(inode);
+ inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
error = ufs_add_nondir(dentry, inode);
@@ -208,7 +196,7 @@
goto out;
lock_kernel();
- ufs_inc_count(dir);
+ inode_inc_link_count(dir);
inode = ufs_new_inode(dir, S_IFDIR|mode);
err = PTR_ERR(inode);
@@ -218,7 +206,7 @@
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
- ufs_inc_count(inode);
+ inode_inc_link_count(inode);
err = ufs_make_empty(inode, dir);
if (err)
@@ -234,11 +222,11 @@
return err;
out_fail:
- ufs_dec_count(inode);
- ufs_dec_count(inode);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(inode);
iput (inode);
out_dir:
- ufs_dec_count(dir);
+ inode_dec_link_count(dir);
unlock_kernel();
goto out;
}
@@ -260,7 +248,7 @@
goto out;
inode->i_ctime = dir->i_ctime;
- ufs_dec_count(inode);
+ inode_dec_link_count(inode);
err = 0;
out:
unlock_kernel();
@@ -277,8 +265,8 @@
err = ufs_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
- ufs_dec_count(inode);
- ufs_dec_count(dir);
+ inode_dec_link_count(inode);
+ inode_dec_link_count(dir);
}
}
unlock_kernel();
@@ -319,35 +307,35 @@
new_de = ufs_find_entry (new_dentry, &new_bh);
if (!new_de)
goto out_dir;
- ufs_inc_count(old_inode);
+ inode_inc_link_count(old_inode);
ufs_set_link(new_dir, new_de, new_bh, old_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
new_inode->i_nlink--;
- ufs_dec_count(new_inode);
+ inode_dec_link_count(new_inode);
} else {
if (dir_de) {
err = -EMLINK;
if (new_dir->i_nlink >= UFS_LINK_MAX)
goto out_dir;
}
- ufs_inc_count(old_inode);
+ inode_inc_link_count(old_inode);
err = ufs_add_link(new_dentry, old_inode);
if (err) {
- ufs_dec_count(old_inode);
+ inode_dec_link_count(old_inode);
goto out_dir;
}
if (dir_de)
- ufs_inc_count(new_dir);
+ inode_inc_link_count(new_dir);
}
ufs_delete_entry (old_dir, old_de, old_bh);
- ufs_dec_count(old_inode);
+ inode_dec_link_count(old_inode);
if (dir_de) {
ufs_set_link(old_inode, dir_de, dir_bh, new_dir);
- ufs_dec_count(old_dir);
+ inode_dec_link_count(old_dir);
}
unlock_kernel();
return 0;
diff --git a/fs/xfs/linux-2.6/xfs_stats.c b/fs/xfs/linux-2.6/xfs_stats.c
index 8955720..713e6a7 100644
--- a/fs/xfs/linux-2.6/xfs_stats.c
+++ b/fs/xfs/linux-2.6/xfs_stats.c
@@ -62,18 +62,15 @@
while (j < xstats[i].endpoint) {
val = 0;
/* sum over all cpus */
- for (c = 0; c < NR_CPUS; c++) {
- if (!cpu_possible(c)) continue;
+ for_each_cpu(c)
val += *(((__u32*)&per_cpu(xfsstats, c) + j));
- }
len += sprintf(buffer + len, " %u", val);
j++;
}
buffer[len++] = '\n';
}
/* extra precision counters */
- for (i = 0; i < NR_CPUS; i++) {
- if (!cpu_possible(i)) continue;
+ for_each_cpu(i) {
xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
diff --git a/fs/xfs/linux-2.6/xfs_sysctl.c b/fs/xfs/linux-2.6/xfs_sysctl.c
index a025649..7079cc8 100644
--- a/fs/xfs/linux-2.6/xfs_sysctl.c
+++ b/fs/xfs/linux-2.6/xfs_sysctl.c
@@ -38,8 +38,7 @@
if (!ret && write && *valp) {
printk("XFS Clearing xfsstats\n");
- for (c = 0; c < NR_CPUS; c++) {
- if (!cpu_possible(c)) continue;
+ for_each_cpu(c) {
preempt_disable();
/* save vn_active, it's a universal truth! */
vn_active = per_cpu(xfsstats, c).vn_active;
diff --git a/include/asm-alpha/mmu_context.h b/include/asm-alpha/mmu_context.h
index 6f92482..0c017fc 100644
--- a/include/asm-alpha/mmu_context.h
+++ b/include/asm-alpha/mmu_context.h
@@ -231,9 +231,8 @@
{
int i;
- for (i = 0; i < NR_CPUS; i++)
- if (cpu_online(i))
- mm->context[i] = 0;
+ for_each_online_cpu(i)
+ mm->context[i] = 0;
if (tsk != current)
task_thread_info(tsk)->pcb.ptbr
= ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
diff --git a/include/asm-alpha/topology.h b/include/asm-alpha/topology.h
index eb740e2..420ccde 100644
--- a/include/asm-alpha/topology.h
+++ b/include/asm-alpha/topology.h
@@ -27,8 +27,8 @@
cpumask_t node_cpu_mask = CPU_MASK_NONE;
int cpu;
- for(cpu = 0; cpu < NR_CPUS; cpu++) {
- if (cpu_online(cpu) && (cpu_to_node(cpu) == node))
+ for_each_online_cpu(cpu) {
+ if (cpu_to_node(cpu) == node)
cpu_set(cpu, node_cpu_mask);
}
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 400c2b4..1a565a9 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -7,7 +7,7 @@
#ifdef CONFIG_BUG
#ifndef HAVE_ARCH_BUG
#define BUG() do { \
- printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+ printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
panic("BUG!"); \
} while (0)
#endif
@@ -19,7 +19,7 @@
#ifndef HAVE_ARCH_WARN_ON
#define WARN_ON(condition) do { \
if (unlikely((condition)!=0)) { \
- printk("Badness in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
+ printk("BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \
dump_stack(); \
} \
} while (0)
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 9044aeb..78cf455 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -19,10 +19,9 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
- for (__i = 0; __i < NR_CPUS; __i++) \
- if (cpu_possible(__i)) \
- memcpy((pcpudst)+__per_cpu_offset[__i], \
- (src), (size)); \
+ for_each_cpu(__i) \
+ memcpy((pcpudst)+__per_cpu_offset[__i], \
+ (src), (size)); \
} while (0)
#else /* ! SMP */
diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h
new file mode 100644
index 0000000..e201dec
--- /dev/null
+++ b/include/asm-i386/alternative.h
@@ -0,0 +1,129 @@
+#ifndef _I386_ALTERNATIVE_H
+#define _I386_ALTERNATIVE_H
+
+#ifdef __KERNEL__
+
+struct alt_instr {
+ u8 *instr; /* original instruction */
+ u8 *replacement;
+ u8 cpuid; /* cpuid bit set for replacement */
+ u8 instrlen; /* length of original instruction */
+ u8 replacementlen; /* length of new instruction, <= instrlen */
+ u8 pad;
+};
+
+extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
+
+struct module;
+extern void alternatives_smp_module_add(struct module *mod, char *name,
+ void *locks, void *locks_end,
+ void *text, void *text_end);
+extern void alternatives_smp_module_del(struct module *mod);
+extern void alternatives_smp_switch(int smp);
+
+#endif
+
+/*
+ * Alternative instructions for different CPU types or capabilities.
+ *
+ * This allows to use optimized instructions even on generic binary
+ * kernels.
+ *
+ * length of oldinstr must be longer or equal the length of newinstr
+ * It can be padded with nops as needed.
+ *
+ * For non barrier like inlines please define new variants
+ * without volatile and memory clobber.
+ */
+#define alternative(oldinstr, newinstr, feature) \
+ asm volatile ("661:\n\t" oldinstr "\n662:\n" \
+ ".section .altinstructions,\"a\"\n" \
+ " .align 4\n" \
+ " .long 661b\n" /* label */ \
+ " .long 663f\n" /* new instruction */ \
+ " .byte %c0\n" /* feature bit */ \
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+ ".section .altinstr_replacement,\"ax\"\n" \
+ "663:\n\t" newinstr "\n664:\n" /* replacement */\
+ ".previous" :: "i" (feature) : "memory")
+
+/*
+ * Alternative inline assembly with input.
+ *
+ * Pecularities:
+ * No memory clobber here.
+ * Argument numbers start with 1.
+ * Best is to use constraints that are fixed size (like (%1) ... "r")
+ * If you use variable sized constraints like "m" or "g" in the
+ * replacement maake sure to pad to the worst case length.
+ */
+#define alternative_input(oldinstr, newinstr, feature, input...) \
+ asm volatile ("661:\n\t" oldinstr "\n662:\n" \
+ ".section .altinstructions,\"a\"\n" \
+ " .align 4\n" \
+ " .long 661b\n" /* label */ \
+ " .long 663f\n" /* new instruction */ \
+ " .byte %c0\n" /* feature bit */ \
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+ ".section .altinstr_replacement,\"ax\"\n" \
+ "663:\n\t" newinstr "\n664:\n" /* replacement */\
+ ".previous" :: "i" (feature), ##input)
+
+/*
+ * Alternative inline assembly for SMP.
+ *
+ * alternative_smp() takes two versions (SMP first, UP second) and is
+ * for more complex stuff such as spinlocks.
+ *
+ * The LOCK_PREFIX macro defined here replaces the LOCK and
+ * LOCK_PREFIX macros used everywhere in the source tree.
+ *
+ * SMP alternatives use the same data structures as the other
+ * alternatives and the X86_FEATURE_UP flag to indicate the case of a
+ * UP system running a SMP kernel. The existing apply_alternatives()
+ * works fine for patching a SMP kernel for UP.
+ *
+ * The SMP alternative tables can be kept after boot and contain both
+ * UP and SMP versions of the instructions to allow switching back to
+ * SMP at runtime, when hotplugging in a new CPU, which is especially
+ * useful in virtualized environments.
+ *
+ * The very common lock prefix is handled as special case in a
+ * separate table which is a pure address list without replacement ptr
+ * and size information. That keeps the table sizes small.
+ */
+
+#ifdef CONFIG_SMP
+#define alternative_smp(smpinstr, upinstr, args...) \
+ asm volatile ("661:\n\t" smpinstr "\n662:\n" \
+ ".section .smp_altinstructions,\"a\"\n" \
+ " .align 4\n" \
+ " .long 661b\n" /* label */ \
+ " .long 663f\n" /* new instruction */ \
+ " .byte 0x68\n" /* X86_FEATURE_UP */ \
+ " .byte 662b-661b\n" /* sourcelen */ \
+ " .byte 664f-663f\n" /* replacementlen */ \
+ ".previous\n" \
+ ".section .smp_altinstr_replacement,\"awx\"\n" \
+ "663:\n\t" upinstr "\n" /* replacement */ \
+ "664:\n\t.fill 662b-661b,1,0x42\n" /* space for original */ \
+ ".previous" : args)
+
+#define LOCK_PREFIX \
+ ".section .smp_locks,\"a\"\n" \
+ " .align 4\n" \
+ " .long 661f\n" /* address */ \
+ ".previous\n" \
+ "661:\n\tlock; "
+
+#else /* ! CONFIG_SMP */
+#define alternative_smp(smpinstr, upinstr, args...) \
+ asm volatile (upinstr : args)
+#define LOCK_PREFIX ""
+#endif
+
+#endif /* _I386_ALTERNATIVE_H */
diff --git a/include/asm-i386/arch_hooks.h b/include/asm-i386/arch_hooks.h
index 28b96a6..238cf42 100644
--- a/include/asm-i386/arch_hooks.h
+++ b/include/asm-i386/arch_hooks.h
@@ -24,4 +24,7 @@
extern void time_init_hook(void);
extern void mca_nmi_hook(void);
+extern int setup_early_printk(char *);
+extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2)));
+
#endif
diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h
index de649d3..22d80ec 100644
--- a/include/asm-i386/atomic.h
+++ b/include/asm-i386/atomic.h
@@ -10,12 +10,6 @@
* resource counting etc..
*/
-#ifdef CONFIG_SMP
-#define LOCK "lock ; "
-#else
-#define LOCK ""
-#endif
-
/*
* Make sure gcc doesn't try to be clever and move things around
* on us. We need to use _exactly_ the address the user gave us,
@@ -52,7 +46,7 @@
static __inline__ void atomic_add(int i, atomic_t *v)
{
__asm__ __volatile__(
- LOCK "addl %1,%0"
+ LOCK_PREFIX "addl %1,%0"
:"=m" (v->counter)
:"ir" (i), "m" (v->counter));
}
@@ -67,7 +61,7 @@
static __inline__ void atomic_sub(int i, atomic_t *v)
{
__asm__ __volatile__(
- LOCK "subl %1,%0"
+ LOCK_PREFIX "subl %1,%0"
:"=m" (v->counter)
:"ir" (i), "m" (v->counter));
}
@@ -86,7 +80,7 @@
unsigned char c;
__asm__ __volatile__(
- LOCK "subl %2,%0; sete %1"
+ LOCK_PREFIX "subl %2,%0; sete %1"
:"=m" (v->counter), "=qm" (c)
:"ir" (i), "m" (v->counter) : "memory");
return c;
@@ -101,7 +95,7 @@
static __inline__ void atomic_inc(atomic_t *v)
{
__asm__ __volatile__(
- LOCK "incl %0"
+ LOCK_PREFIX "incl %0"
:"=m" (v->counter)
:"m" (v->counter));
}
@@ -115,7 +109,7 @@
static __inline__ void atomic_dec(atomic_t *v)
{
__asm__ __volatile__(
- LOCK "decl %0"
+ LOCK_PREFIX "decl %0"
:"=m" (v->counter)
:"m" (v->counter));
}
@@ -133,7 +127,7 @@
unsigned char c;
__asm__ __volatile__(
- LOCK "decl %0; sete %1"
+ LOCK_PREFIX "decl %0; sete %1"
:"=m" (v->counter), "=qm" (c)
:"m" (v->counter) : "memory");
return c != 0;
@@ -152,7 +146,7 @@
unsigned char c;
__asm__ __volatile__(
- LOCK "incl %0; sete %1"
+ LOCK_PREFIX "incl %0; sete %1"
:"=m" (v->counter), "=qm" (c)
:"m" (v->counter) : "memory");
return c != 0;
@@ -172,7 +166,7 @@
unsigned char c;
__asm__ __volatile__(
- LOCK "addl %2,%0; sets %1"
+ LOCK_PREFIX "addl %2,%0; sets %1"
:"=m" (v->counter), "=qm" (c)
:"ir" (i), "m" (v->counter) : "memory");
return c;
@@ -195,7 +189,7 @@
/* Modern 486+ processor */
__i = i;
__asm__ __volatile__(
- LOCK "xaddl %0, %1;"
+ LOCK_PREFIX "xaddl %0, %1;"
:"=r"(i)
:"m"(v->counter), "0"(i));
return i + __i;
@@ -231,8 +225,14 @@
({ \
int c, old; \
c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = atomic_cmpxchg((v), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
c = old; \
+ } \
c != (u); \
})
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
@@ -242,11 +242,11 @@
/* These are x86-specific, used by some header files */
#define atomic_clear_mask(mask, addr) \
-__asm__ __volatile__(LOCK "andl %0,%1" \
+__asm__ __volatile__(LOCK_PREFIX "andl %0,%1" \
: : "r" (~(mask)),"m" (*addr) : "memory")
#define atomic_set_mask(mask, addr) \
-__asm__ __volatile__(LOCK "orl %0,%1" \
+__asm__ __volatile__(LOCK_PREFIX "orl %0,%1" \
: : "r" (mask),"m" (*(addr)) : "memory")
/* Atomic operations are already serializing on x86 */
diff --git a/include/asm-i386/bitops.h b/include/asm-i386/bitops.h
index 88e6ca2..7d20b95 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -7,6 +7,7 @@
#include <linux/config.h>
#include <linux/compiler.h>
+#include <asm/alternative.h>
/*
* These have to be done with inline assembly: that way the bit-setting
@@ -16,12 +17,6 @@
* bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
*/
-#ifdef CONFIG_SMP
-#define LOCK_PREFIX "lock ; "
-#else
-#define LOCK_PREFIX ""
-#endif
-
#define ADDR (*(volatile long *) addr)
/**
diff --git a/include/asm-i386/cache.h b/include/asm-i386/cache.h
index 615911e..ca15c9c 100644
--- a/include/asm-i386/cache.h
+++ b/include/asm-i386/cache.h
@@ -10,4 +10,6 @@
#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
diff --git a/include/asm-i386/cpufeature.h b/include/asm-i386/cpufeature.h
index c4ec2a4..5c0b587 100644
--- a/include/asm-i386/cpufeature.h
+++ b/include/asm-i386/cpufeature.h
@@ -70,6 +70,7 @@
#define X86_FEATURE_P3 (3*32+ 6) /* P3 */
#define X86_FEATURE_P4 (3*32+ 7) /* P4 */
#define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */
+#define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */
/* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
#define X86_FEATURE_XMM3 (4*32+ 0) /* Streaming SIMD Extensions-3 */
diff --git a/include/asm-i386/mach-default/do_timer.h b/include/asm-i386/mach-default/do_timer.h
index 5621141..6312c3e 100644
--- a/include/asm-i386/mach-default/do_timer.h
+++ b/include/asm-i386/mach-default/do_timer.h
@@ -18,7 +18,7 @@
{
do_timer(regs);
#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
+ update_process_times(user_mode_vm(regs));
#endif
/*
* In the SMP case we use the local APIC timer interrupt to do the
diff --git a/include/asm-i386/mach-es7000/mach_mpparse.h b/include/asm-i386/mach-es7000/mach_mpparse.h
index 4a0637a..99f66be 100644
--- a/include/asm-i386/mach-es7000/mach_mpparse.h
+++ b/include/asm-i386/mach-es7000/mach_mpparse.h
@@ -30,7 +30,8 @@
return 0;
}
-static inline int es7000_check_dsdt()
+#ifdef CONFIG_ACPI
+static inline int es7000_check_dsdt(void)
{
struct acpi_table_header *header = NULL;
if(!acpi_get_table_header_early(ACPI_DSDT, &header))
@@ -54,6 +55,11 @@
}
return 0;
}
-
+#else
+static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+ return 0;
+}
+#endif
#endif /* __ASM_MACH_MPPARSE_H */
diff --git a/include/asm-i386/mach-visws/do_timer.h b/include/asm-i386/mach-visws/do_timer.h
index 92d638f..95568e6 100644
--- a/include/asm-i386/mach-visws/do_timer.h
+++ b/include/asm-i386/mach-visws/do_timer.h
@@ -11,7 +11,7 @@
do_timer(regs);
#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
+ update_process_times(user_mode_vm(regs));
#endif
/*
* In the SMP case we use the local APIC timer interrupt to do the
diff --git a/include/asm-i386/mach-voyager/do_timer.h b/include/asm-i386/mach-voyager/do_timer.h
index ae510e5..eaf5180 100644
--- a/include/asm-i386/mach-voyager/do_timer.h
+++ b/include/asm-i386/mach-voyager/do_timer.h
@@ -5,7 +5,7 @@
{
do_timer(regs);
#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
+ update_process_times(user_mode_vm(regs));
#endif
voyager_timer_interrupt(regs);
diff --git a/include/asm-i386/mpspec.h b/include/asm-i386/mpspec.h
index 64a0b8e..62113d3 100644
--- a/include/asm-i386/mpspec.h
+++ b/include/asm-i386/mpspec.h
@@ -22,7 +22,6 @@
extern int mp_irq_entries;
extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
extern int mpc_default_type;
-extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
extern unsigned long mp_lapic_addr;
extern int pic_mode;
extern int using_apic_timer;
diff --git a/include/asm-i386/mtrr.h b/include/asm-i386/mtrr.h
index 5b6ceda..64cf937 100644
--- a/include/asm-i386/mtrr.h
+++ b/include/asm-i386/mtrr.h
@@ -25,6 +25,7 @@
#include <linux/config.h>
#include <linux/ioctl.h>
+#include <linux/errno.h>
#define MTRR_IOCTL_BASE 'M'
diff --git a/include/asm-i386/mutex.h b/include/asm-i386/mutex.h
index 9b2199e..05a5385 100644
--- a/include/asm-i386/mutex.h
+++ b/include/asm-i386/mutex.h
@@ -9,6 +9,8 @@
#ifndef _ASM_MUTEX_H
#define _ASM_MUTEX_H
+#include "asm/alternative.h"
+
/**
* __mutex_fastpath_lock - try to take the lock by moving the count
* from 1 to a 0 value
@@ -27,7 +29,7 @@
typecheck_fn(fastcall void (*)(atomic_t *), fail_fn); \
\
__asm__ __volatile__( \
- LOCK " decl (%%eax) \n" \
+ LOCK_PREFIX " decl (%%eax) \n" \
" js 2f \n" \
"1: \n" \
\
@@ -83,7 +85,7 @@
typecheck_fn(fastcall void (*)(atomic_t *), fail_fn); \
\
__asm__ __volatile__( \
- LOCK " incl (%%eax) \n" \
+ LOCK_PREFIX " incl (%%eax) \n" \
" jle 2f \n" \
"1: \n" \
\
diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h
index 74ef721..27bde97 100644
--- a/include/asm-i386/pgtable-2level.h
+++ b/include/asm-i386/pgtable-2level.h
@@ -61,4 +61,6 @@
#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
+void vmalloc_sync_all(void);
+
#endif /* _I386_PGTABLE_2LEVEL_H */
diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h
index f1a8b45..36a5aa6 100644
--- a/include/asm-i386/pgtable-3level.h
+++ b/include/asm-i386/pgtable-3level.h
@@ -152,4 +152,6 @@
#define __pmd_free_tlb(tlb, x) do { } while (0)
+#define vmalloc_sync_all() ((void)0)
+
#endif /* _I386_PGTABLE_3LEVEL_H */
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h
index b57cc7a..94f0019 100644
--- a/include/asm-i386/rwlock.h
+++ b/include/asm-i386/rwlock.h
@@ -21,21 +21,23 @@
#define RW_LOCK_BIAS_STR "0x01000000"
#define __build_read_lock_ptr(rw, helper) \
- asm volatile(LOCK "subl $1,(%0)\n\t" \
- "jns 1f\n" \
- "call " helper "\n\t" \
- "1:\n" \
- ::"a" (rw) : "memory")
+ alternative_smp("lock; subl $1,(%0)\n\t" \
+ "jns 1f\n" \
+ "call " helper "\n\t" \
+ "1:\n", \
+ "subl $1,(%0)\n\t", \
+ :"a" (rw) : "memory")
#define __build_read_lock_const(rw, helper) \
- asm volatile(LOCK "subl $1,%0\n\t" \
- "jns 1f\n" \
- "pushl %%eax\n\t" \
- "leal %0,%%eax\n\t" \
- "call " helper "\n\t" \
- "popl %%eax\n\t" \
- "1:\n" \
- :"=m" (*(volatile int *)rw) : : "memory")
+ alternative_smp("lock; subl $1,%0\n\t" \
+ "jns 1f\n" \
+ "pushl %%eax\n\t" \
+ "leal %0,%%eax\n\t" \
+ "call " helper "\n\t" \
+ "popl %%eax\n\t" \
+ "1:\n", \
+ "subl $1,%0\n\t", \
+ "=m" (*(volatile int *)rw) : : "memory")
#define __build_read_lock(rw, helper) do { \
if (__builtin_constant_p(rw)) \
@@ -45,21 +47,23 @@
} while (0)
#define __build_write_lock_ptr(rw, helper) \
- asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
- "jz 1f\n" \
- "call " helper "\n\t" \
- "1:\n" \
- ::"a" (rw) : "memory")
+ alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
+ "jz 1f\n" \
+ "call " helper "\n\t" \
+ "1:\n", \
+ "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t", \
+ :"a" (rw) : "memory")
#define __build_write_lock_const(rw, helper) \
- asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
- "jz 1f\n" \
- "pushl %%eax\n\t" \
- "leal %0,%%eax\n\t" \
- "call " helper "\n\t" \
- "popl %%eax\n\t" \
- "1:\n" \
- :"=m" (*(volatile int *)rw) : : "memory")
+ alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
+ "jz 1f\n" \
+ "pushl %%eax\n\t" \
+ "leal %0,%%eax\n\t" \
+ "call " helper "\n\t" \
+ "popl %%eax\n\t" \
+ "1:\n", \
+ "subl $" RW_LOCK_BIAS_STR ",%0\n\t", \
+ "=m" (*(volatile int *)rw) : : "memory")
#define __build_write_lock(rw, helper) do { \
if (__builtin_constant_p(rw)) \
diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h
index 6a42b21..f7a0f31 100644
--- a/include/asm-i386/semaphore.h
+++ b/include/asm-i386/semaphore.h
@@ -99,7 +99,7 @@
might_sleep();
__asm__ __volatile__(
"# atomic down operation\n\t"
- LOCK "decl %0\n\t" /* --sem->count */
+ LOCK_PREFIX "decl %0\n\t" /* --sem->count */
"js 2f\n"
"1:\n"
LOCK_SECTION_START("")
@@ -123,7 +123,7 @@
might_sleep();
__asm__ __volatile__(
"# atomic interruptible down operation\n\t"
- LOCK "decl %1\n\t" /* --sem->count */
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
"js 2f\n\t"
"xorl %0,%0\n"
"1:\n"
@@ -148,7 +148,7 @@
__asm__ __volatile__(
"# atomic interruptible down operation\n\t"
- LOCK "decl %1\n\t" /* --sem->count */
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
"js 2f\n\t"
"xorl %0,%0\n"
"1:\n"
@@ -173,7 +173,7 @@
{
__asm__ __volatile__(
"# atomic up operation\n\t"
- LOCK "incl %0\n\t" /* ++sem->count */
+ LOCK_PREFIX "incl %0\n\t" /* ++sem->count */
"jle 2f\n"
"1:\n"
LOCK_SECTION_START("")
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index 2360435..d76b769 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -35,31 +35,41 @@
#define __raw_spin_lock_string_flags \
"\n1:\t" \
"lock ; decb %0\n\t" \
- "jns 4f\n\t" \
+ "jns 5f\n" \
"2:\t" \
"testl $0x200, %1\n\t" \
- "jz 3f\n\t" \
- "sti\n\t" \
+ "jz 4f\n\t" \
+ "sti\n" \
"3:\t" \
"rep;nop\n\t" \
"cmpb $0, %0\n\t" \
"jle 3b\n\t" \
"cli\n\t" \
"jmp 1b\n" \
- "4:\n\t"
+ "4:\t" \
+ "rep;nop\n\t" \
+ "cmpb $0, %0\n\t" \
+ "jg 1b\n\t" \
+ "jmp 4b\n" \
+ "5:\n\t"
+
+#define __raw_spin_lock_string_up \
+ "\n\tdecb %0"
static inline void __raw_spin_lock(raw_spinlock_t *lock)
{
- __asm__ __volatile__(
- __raw_spin_lock_string
- :"=m" (lock->slock) : : "memory");
+ alternative_smp(
+ __raw_spin_lock_string,
+ __raw_spin_lock_string_up,
+ "=m" (lock->slock) : : "memory");
}
static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
{
- __asm__ __volatile__(
- __raw_spin_lock_string_flags
- :"=m" (lock->slock) : "r" (flags) : "memory");
+ alternative_smp(
+ __raw_spin_lock_string_flags,
+ __raw_spin_lock_string_up,
+ "=m" (lock->slock) : "r" (flags) : "memory");
}
static inline int __raw_spin_trylock(raw_spinlock_t *lock)
@@ -178,12 +188,12 @@
static inline void __raw_read_unlock(raw_rwlock_t *rw)
{
- asm volatile("lock ; incl %0" :"=m" (rw->lock) : : "memory");
+ asm volatile(LOCK_PREFIX "incl %0" :"=m" (rw->lock) : : "memory");
}
static inline void __raw_write_unlock(raw_rwlock_t *rw)
{
- asm volatile("lock ; addl $" RW_LOCK_BIAS_STR ", %0"
+ asm volatile(LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ", %0"
: "=m" (rw->lock) : : "memory");
}
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h
index 399145a..d0d8d74 100644
--- a/include/asm-i386/system.h
+++ b/include/asm-i386/system.h
@@ -352,67 +352,6 @@
#endif
-#ifdef __KERNEL__
-struct alt_instr {
- __u8 *instr; /* original instruction */
- __u8 *replacement;
- __u8 cpuid; /* cpuid bit set for replacement */
- __u8 instrlen; /* length of original instruction */
- __u8 replacementlen; /* length of new instruction, <= instrlen */
- __u8 pad;
-};
-#endif
-
-/*
- * Alternative instructions for different CPU types or capabilities.
- *
- * This allows to use optimized instructions even on generic binary
- * kernels.
- *
- * length of oldinstr must be longer or equal the length of newinstr
- * It can be padded with nops as needed.
- *
- * For non barrier like inlines please define new variants
- * without volatile and memory clobber.
- */
-#define alternative(oldinstr, newinstr, feature) \
- asm volatile ("661:\n\t" oldinstr "\n662:\n" \
- ".section .altinstructions,\"a\"\n" \
- " .align 4\n" \
- " .long 661b\n" /* label */ \
- " .long 663f\n" /* new instruction */ \
- " .byte %c0\n" /* feature bit */ \
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
- ".section .altinstr_replacement,\"ax\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous" :: "i" (feature) : "memory")
-
-/*
- * Alternative inline assembly with input.
- *
- * Pecularities:
- * No memory clobber here.
- * Argument numbers start with 1.
- * Best is to use constraints that are fixed size (like (%1) ... "r")
- * If you use variable sized constraints like "m" or "g" in the
- * replacement maake sure to pad to the worst case length.
- */
-#define alternative_input(oldinstr, newinstr, feature, input...) \
- asm volatile ("661:\n\t" oldinstr "\n662:\n" \
- ".section .altinstructions,\"a\"\n" \
- " .align 4\n" \
- " .long 661b\n" /* label */ \
- " .long 663f\n" /* new instruction */ \
- " .byte %c0\n" /* feature bit */ \
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
- ".section .altinstr_replacement,\"ax\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous" :: "i" (feature), ##input)
-
/*
* Force strict CPU ordering.
* And yes, this is required on UP too when we're talking
@@ -558,5 +497,6 @@
}
extern unsigned long arch_align_stack(unsigned long sp);
+extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
#endif
diff --git a/include/asm-i386/uaccess.h b/include/asm-i386/uaccess.h
index 3f1337c..371457b 100644
--- a/include/asm-i386/uaccess.h
+++ b/include/asm-i386/uaccess.h
@@ -197,13 +197,15 @@
#define put_user(x,ptr) \
({ int __ret_pu; \
+ __typeof__(*(ptr)) __pu_val; \
__chk_user_ptr(ptr); \
+ __pu_val = x; \
switch(sizeof(*(ptr))) { \
- case 1: __put_user_1(x, ptr); break; \
- case 2: __put_user_2(x, ptr); break; \
- case 4: __put_user_4(x, ptr); break; \
- case 8: __put_user_8(x, ptr); break; \
- default:__put_user_X(x, ptr); break; \
+ case 1: __put_user_1(__pu_val, ptr); break; \
+ case 2: __put_user_2(__pu_val, ptr); break; \
+ case 4: __put_user_4(__pu_val, ptr); break; \
+ case 8: __put_user_8(__pu_val, ptr); break; \
+ default:__put_user_X(__pu_val, ptr); break; \
} \
__ret_pu; \
})
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index dc81a55..d8afd0e 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -347,9 +347,9 @@
type name(type1 arg1) \
{ \
long __res; \
-__asm__ volatile ("int $0x80" \
+__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
: "=a" (__res) \
- : "0" (__NR_##name),"b" ((long)(arg1)) : "memory"); \
+ : "0" (__NR_##name),"ri" ((long)(arg1)) : "memory"); \
__syscall_return(type,__res); \
}
@@ -357,9 +357,10 @@
type name(type1 arg1,type2 arg2) \
{ \
long __res; \
-__asm__ volatile ("int $0x80" \
+__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
: "=a" (__res) \
- : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)) : "memory"); \
+ : "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)) \
+ : "memory"); \
__syscall_return(type,__res); \
}
@@ -367,9 +368,9 @@
type name(type1 arg1,type2 arg2,type3 arg3) \
{ \
long __res; \
-__asm__ volatile ("int $0x80" \
+__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
: "=a" (__res) \
- : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
+ : "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
"d" ((long)(arg3)) : "memory"); \
__syscall_return(type,__res); \
}
@@ -378,9 +379,9 @@
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
long __res; \
-__asm__ volatile ("int $0x80" \
+__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
: "=a" (__res) \
- : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
+ : "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
"d" ((long)(arg3)),"S" ((long)(arg4)) : "memory"); \
__syscall_return(type,__res); \
}
@@ -390,10 +391,12 @@
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
long __res; \
-__asm__ volatile ("int $0x80" \
+__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; movl %1,%%eax ; " \
+ "int $0x80 ; pop %%ebx" \
: "=a" (__res) \
- : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
- "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) : "memory"); \
+ : "i" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
+ "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
+ : "memory"); \
__syscall_return(type,__res); \
}
@@ -402,11 +405,14 @@
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
{ \
long __res; \
-__asm__ volatile ("push %%ebp ; movl %%eax,%%ebp ; movl %1,%%eax ; int $0x80 ; pop %%ebp" \
+ struct { long __a1; long __a6; } __s = { (long)arg1, (long)arg6 }; \
+__asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \
+ "movl 0(%2),%%ebx ; movl %1,%%eax ; int $0x80 ; " \
+ "pop %%ebx ; pop %%ebp" \
: "=a" (__res) \
- : "i" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
- "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
- "0" ((long)(arg6)) : "memory"); \
+ : "i" (__NR_##name),"0" ((long)(&__s)),"c" ((long)(arg2)), \
+ "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
+ : "memory"); \
__syscall_return(type,__res); \
}
diff --git a/include/asm-ia64/atomic.h b/include/asm-ia64/atomic.h
index d3e0dfa..569ec75 100644
--- a/include/asm-ia64/atomic.h
+++ b/include/asm-ia64/atomic.h
@@ -95,8 +95,14 @@
({ \
int c, old; \
c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = atomic_cmpxchg((v), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
c = old; \
+ } \
c != (u); \
})
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/include/asm-ia64/cache.h b/include/asm-ia64/cache.h
index 40dd2519..f0a104d 100644
--- a/include/asm-ia64/cache.h
+++ b/include/asm-ia64/cache.h
@@ -25,4 +25,6 @@
# define SMP_CACHE_BYTES (1 << 3)
#endif
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif /* _ASM_IA64_CACHE_H */
diff --git a/include/asm-m68k/atomic.h b/include/asm-m68k/atomic.h
index 862e497..732d696 100644
--- a/include/asm-m68k/atomic.h
+++ b/include/asm-m68k/atomic.h
@@ -175,8 +175,14 @@
({ \
int c, old; \
c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = atomic_cmpxchg((v), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
c = old; \
+ } \
c != (u); \
})
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index 93f179f..ae50f8e 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -29,6 +29,8 @@
#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
extern void flush_data_cache_local(void *); /* flushes local data-cache only */
extern void flush_instruction_cache_local(void *); /* flushes local code-cache only */
#ifdef CONFIG_SMP
diff --git a/include/asm-powerpc/percpu.h b/include/asm-powerpc/percpu.h
index e31922c..464301c 100644
--- a/include/asm-powerpc/percpu.h
+++ b/include/asm-powerpc/percpu.h
@@ -27,10 +27,9 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
- for (__i = 0; __i < NR_CPUS; __i++) \
- if (cpu_possible(__i)) \
- memcpy((pcpudst)+__per_cpu_offset(__i), \
- (src), (size)); \
+ for_each_cpu(__i) \
+ memcpy((pcpudst)+__per_cpu_offset(__i), \
+ (src), (size)); \
} while (0)
extern void setup_per_cpu_areas(void);
diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h
index be6fefe..de1d992 100644
--- a/include/asm-s390/atomic.h
+++ b/include/asm-s390/atomic.h
@@ -89,10 +89,15 @@
static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
{
int c, old;
-
c = atomic_read(v);
- while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c)
+ for (;;) {
+ if (unlikely(c == u))
+ break;
+ old = atomic_cmpxchg(v, c, c + a);
+ if (likely(old == c))
+ break;
c = old;
+ }
return c != u;
}
@@ -167,10 +172,15 @@
long long a, long long u)
{
long long c, old;
-
c = atomic64_read(v);
- while (c != u && (old = atomic64_cmpxchg(v, c, c + a)) != c)
+ for (;;) {
+ if (unlikely(c == u))
+ break;
+ old = atomic64_cmpxchg(v, c, c + a);
+ if (likely(old == c))
+ break;
c = old;
+ }
return c != u;
}
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h
index 123fcac..e10ed87 100644
--- a/include/asm-s390/percpu.h
+++ b/include/asm-s390/percpu.h
@@ -46,10 +46,9 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
- for (__i = 0; __i < NR_CPUS; __i++) \
- if (cpu_possible(__i)) \
- memcpy((pcpudst)+__per_cpu_offset[__i], \
- (src), (size)); \
+ for_each_cpu(__i) \
+ memcpy((pcpudst)+__per_cpu_offset[__i], \
+ (src), (size)); \
} while (0)
#else /* ! SMP */
diff --git a/include/asm-sparc64/atomic.h b/include/asm-sparc64/atomic.h
index 25256bd..468eb48 100644
--- a/include/asm-sparc64/atomic.h
+++ b/include/asm-sparc64/atomic.h
@@ -78,9 +78,15 @@
({ \
int c, old; \
c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = atomic_cmpxchg((v), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
c = old; \
- c != (u); \
+ } \
+ likely(c != (u)); \
})
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/include/asm-sparc64/cache.h b/include/asm-sparc64/cache.h
index f7d35a2..e9df17a 100644
--- a/include/asm-sparc64/cache.h
+++ b/include/asm-sparc64/cache.h
@@ -13,4 +13,6 @@
#define SMP_CACHE_BYTES_SHIFT 6
#define SMP_CACHE_BYTES (1 << SMP_CACHE_BYTES_SHIFT) /* L2 cache line size. */
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h
index aea4e51..82032e1 100644
--- a/include/asm-sparc64/percpu.h
+++ b/include/asm-sparc64/percpu.h
@@ -26,10 +26,9 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
- for (__i = 0; __i < NR_CPUS; __i++) \
- if (cpu_possible(__i)) \
- memcpy((pcpudst)+__per_cpu_offset(__i), \
- (src), (size)); \
+ for_each_cpu(__i) \
+ memcpy((pcpudst)+__per_cpu_offset(__i), \
+ (src), (size)); \
} while (0)
#else /* ! SMP */
diff --git a/include/asm-um/alternative.h b/include/asm-um/alternative.h
new file mode 100644
index 0000000..b643439
--- /dev/null
+++ b/include/asm-um/alternative.h
@@ -0,0 +1,6 @@
+#ifndef __UM_ALTERNATIVE_H
+#define __UM_ALTERNATIVE_H
+
+#include "asm/arch/alternative.h"
+
+#endif
diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h
index 4b5cd55..cecbf7b 100644
--- a/include/asm-x86_64/atomic.h
+++ b/include/asm-x86_64/atomic.h
@@ -405,8 +405,14 @@
({ \
int c, old; \
c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+ for (;;) { \
+ if (unlikely(c == (u))) \
+ break; \
+ old = atomic_cmpxchg((v), c, c + (a)); \
+ if (likely(old == c)) \
+ break; \
c = old; \
+ } \
c != (u); \
})
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/include/asm-x86_64/cache.h b/include/asm-x86_64/cache.h
index 263f0a2..c8043a1 100644
--- a/include/asm-x86_64/cache.h
+++ b/include/asm-x86_64/cache.h
@@ -20,6 +20,8 @@
__attribute__((__section__(".data.page_aligned")))
#endif
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif
#endif
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h
index 29a6b04..4405b4a 100644
--- a/include/asm-x86_64/percpu.h
+++ b/include/asm-x86_64/percpu.h
@@ -26,10 +26,9 @@
#define percpu_modcopy(pcpudst, src, size) \
do { \
unsigned int __i; \
- for (__i = 0; __i < NR_CPUS; __i++) \
- if (cpu_possible(__i)) \
- memcpy((pcpudst)+__per_cpu_offset(__i), \
- (src), (size)); \
+ for_each_cpu(__i) \
+ memcpy((pcpudst)+__per_cpu_offset(__i), \
+ (src), (size)); \
} while (0)
extern void setup_per_cpu_areas(void);
diff --git a/include/linux/cache.h b/include/linux/cache.h
index d22e632..cc4b3aa 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -13,9 +13,7 @@
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif
-#if defined(CONFIG_X86) || defined(CONFIG_SPARC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
-#define __read_mostly __attribute__((__section__(".data.read_mostly")))
-#else
+#ifndef __read_mostly
#define __read_mostly
#endif
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index b68fdf1..3c9b0bc 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -378,7 +378,6 @@
#define CDC_MEDIA_CHANGED 0x80 /* media changed */
#define CDC_PLAY_AUDIO 0x100 /* audio functions */
#define CDC_RESET 0x200 /* hard reset device */
-#define CDC_IOCTLS 0x400 /* driver has non-standard ioctls */
#define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */
#define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */
#define CDC_CD_R 0x2000 /* drive is a CD-R */
@@ -974,9 +973,7 @@
int (*reset) (struct cdrom_device_info *);
/* play stuff */
int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
- /* dev-specific */
- int (*dev_ioctl) (struct cdrom_device_info *,
- unsigned int, unsigned long);
+
/* driver specifications */
const int capability; /* capability flags */
int n_minors; /* number of active minor devices */
diff --git a/include/linux/eventpoll.h b/include/linux/eventpoll.h
index 1289f0e..1e4bdfc 100644
--- a/include/linux/eventpoll.h
+++ b/include/linux/eventpoll.h
@@ -52,7 +52,12 @@
#ifdef CONFIG_EPOLL
/* Used to initialize the epoll bits inside the "struct file" */
-void eventpoll_init_file(struct file *file);
+static inline void eventpoll_init_file(struct file *file)
+{
+ INIT_LIST_HEAD(&file->f_ep_links);
+ spin_lock_init(&file->f_ep_lock);
+}
+
/* Used to release the epoll bits inside the "struct file" */
void eventpoll_release_file(struct file *file);
@@ -85,7 +90,6 @@
eventpoll_release_file(file);
}
-
#else
static inline void eventpoll_init_file(struct file *file) {}
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index c0272d7..e7239f2 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -772,9 +772,12 @@
/* inode.c */
-extern int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
-extern struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
-extern struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
+int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
+struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
+struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
+int ext3_get_block_handle(handle_t *handle, struct inode *inode,
+ sector_t iblock, struct buffer_head *bh_result, int create,
+ int extend_disksize);
extern void ext3_read_inode (struct inode *);
extern int ext3_write_inode (struct inode *, int);
diff --git a/include/linux/ext3_fs_i.h b/include/linux/ext3_fs_i.h
index e71dd98..7abf901 100644
--- a/include/linux/ext3_fs_i.h
+++ b/include/linux/ext3_fs_i.h
@@ -19,6 +19,7 @@
#include <linux/rwsem.h>
#include <linux/rbtree.h>
#include <linux/seqlock.h>
+#include <linux/mutex.h>
struct ext3_reserve_window {
__u32 _rsv_start; /* First byte reserved */
@@ -122,16 +123,16 @@
__u16 i_extra_isize;
/*
- * truncate_sem is for serialising ext3_truncate() against
+ * truncate_mutex is for serialising ext3_truncate() against
* ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's
* data tree are chopped off during truncate. We can't do that in
* ext3 because whenever we perform intermediate commits during
* truncate, the inode and all the metadata blocks *must* be in a
* consistent state which allows truncation of the orphans to restart
* during recovery. Hence we must fix the get_block-vs-truncate race
- * by other means, so we have truncate_sem.
+ * by other means, so we have truncate_mutex.
*/
- struct semaphore truncate_sem;
+ struct mutex truncate_mutex;
struct inode vfs_inode;
};
diff --git a/include/linux/file.h b/include/linux/file.h
index 9901b85..9f7c251 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -10,6 +10,7 @@
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/rcupdate.h>
+#include <linux/types.h>
/*
* The default fd array needs to be at least BITS_PER_LONG,
@@ -17,10 +18,22 @@
*/
#define NR_OPEN_DEFAULT BITS_PER_LONG
+/*
+ * The embedded_fd_set is a small fd_set,
+ * suitable for most tasks (which open <= BITS_PER_LONG files)
+ */
+struct embedded_fd_set {
+ unsigned long fds_bits[1];
+};
+
+/*
+ * More than this number of fds: we use a separately allocated fd_set
+ */
+#define EMBEDDED_FD_SET_SIZE (BITS_PER_BYTE * sizeof(struct embedded_fd_set))
+
struct fdtable {
unsigned int max_fds;
int max_fdset;
- int next_fd;
struct file ** fd; /* current fd array */
fd_set *close_on_exec;
fd_set *open_fds;
@@ -33,13 +46,20 @@
* Open file table structure
*/
struct files_struct {
+ /*
+ * read mostly part
+ */
atomic_t count;
struct fdtable *fdt;
struct fdtable fdtab;
- fd_set close_on_exec_init;
- fd_set open_fds_init;
+ /*
+ * written part on a separate cache line in SMP
+ */
+ spinlock_t file_lock ____cacheline_aligned_in_smp;
+ int next_fd;
+ struct embedded_fd_set close_on_exec_init;
+ struct embedded_fd_set open_fds_init;
struct file * fd_array[NR_OPEN_DEFAULT];
- spinlock_t file_lock; /* Protects concurrent writers. Nests inside tsk->alloc_lock */
};
#define files_fdtable(files) (rcu_dereference((files)->fdt))
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 128d008..f9c9dea 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -397,8 +397,8 @@
dev_t bd_dev; /* not a kdev_t - it's a search key */
struct inode * bd_inode; /* will die */
int bd_openers;
- struct semaphore bd_sem; /* open/close mutex */
- struct semaphore bd_mount_sem; /* mount mutex */
+ struct mutex bd_mutex; /* open/close mutex */
+ struct mutex bd_mount_mutex; /* mount mutex */
struct list_head bd_inodes;
void * bd_holder;
int bd_holders;
@@ -509,7 +509,7 @@
#ifdef CONFIG_INOTIFY
struct list_head inotify_watches; /* watches on this inode */
- struct semaphore inotify_sem; /* protects the watches list */
+ struct mutex inotify_mutex; /* protects the watches list */
#endif
unsigned long i_state;
@@ -847,7 +847,7 @@
* The next field is for VFS *only*. No filesystems have any business
* even looking at it. You had been warned.
*/
- struct semaphore s_vfs_rename_sem; /* Kludge */
+ struct mutex s_vfs_rename_mutex; /* Kludge */
/* Granuality of c/m/atime in ns.
Cannot be worse than a second */
@@ -1115,6 +1115,18 @@
__mark_inode_dirty(inode, I_DIRTY_SYNC);
}
+static inline void inode_inc_link_count(struct inode *inode)
+{
+ inode->i_nlink++;
+ mark_inode_dirty(inode);
+}
+
+static inline void inode_dec_link_count(struct inode *inode)
+{
+ inode->i_nlink--;
+ mark_inode_dirty(inode);
+}
+
extern void touch_atime(struct vfsmount *mnt, struct dentry *dentry);
static inline void file_accessed(struct file *file)
{
@@ -1534,7 +1546,7 @@
extern struct inode *new_inode(struct super_block *);
extern int remove_suid(struct dentry *);
extern void remove_dquot_ref(struct super_block *, int, struct list_head *);
-extern struct semaphore iprune_sem;
+extern struct mutex iprune_mutex;
extern void __insert_inode_hash(struct inode *, unsigned long hashval);
extern void remove_inode_hash(struct inode *);
diff --git a/include/linux/generic_serial.h b/include/linux/generic_serial.h
index 0abe9d9..652611a 100644
--- a/include/linux/generic_serial.h
+++ b/include/linux/generic_serial.h
@@ -12,6 +12,8 @@
#ifndef GENERIC_SERIAL_H
#define GENERIC_SERIAL_H
+#include <linux/mutex.h>
+
struct real_driver {
void (*disable_tx_interrupts) (void *);
void (*enable_tx_interrupts) (void *);
@@ -34,7 +36,7 @@
int xmit_head;
int xmit_tail;
int xmit_cnt;
- struct semaphore port_write_sem;
+ struct mutex port_write_mutex;
int flags;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index eef5ccd..fd647fd 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -149,22 +149,16 @@
({ \
typeof(gendiskp->dkstats->field) res = 0; \
int i; \
- for (i=0; i < NR_CPUS; i++) { \
- if (!cpu_possible(i)) \
- continue; \
+ for_each_cpu(i) \
res += per_cpu_ptr(gendiskp->dkstats, i)->field; \
- } \
res; \
})
static inline void disk_stat_set_all(struct gendisk *gendiskp, int value) {
int i;
- for (i=0; i < NR_CPUS; i++) {
- if (cpu_possible(i)) {
- memset(per_cpu_ptr(gendiskp->dkstats, i), value,
- sizeof (struct disk_stats));
- }
- }
+ for_each_cpu(i)
+ memset(per_cpu_ptr(gendiskp->dkstats, i), value,
+ sizeof (struct disk_stats));
}
#else
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index dcfd2ec..92146f3 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -7,11 +7,10 @@
#define INIT_FDTABLE \
{ \
.max_fds = NR_OPEN_DEFAULT, \
- .max_fdset = __FD_SETSIZE, \
- .next_fd = 0, \
+ .max_fdset = EMBEDDED_FD_SET_SIZE, \
.fd = &init_files.fd_array[0], \
- .close_on_exec = &init_files.close_on_exec_init, \
- .open_fds = &init_files.open_fds_init, \
+ .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \
+ .open_fds = (fd_set *)&init_files.open_fds_init, \
.rcu = RCU_HEAD_INIT, \
.free_files = NULL, \
.next = NULL, \
@@ -20,9 +19,10 @@
#define INIT_FILES \
{ \
.count = ATOMIC_INIT(1), \
- .file_lock = SPIN_LOCK_UNLOCKED, \
.fdt = &init_files.fdtab, \
.fdtab = INIT_FDTABLE, \
+ .file_lock = SPIN_LOCK_UNLOCKED, \
+ .next_fd = 0, \
.close_on_exec_init = { { 0, } }, \
.open_fds_init = { { 0, } }, \
.fd_array = { NULL, } \
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 41ee799..2ccbfb6 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -28,6 +28,7 @@
#include <linux/journal-head.h>
#include <linux/stddef.h>
#include <linux/bit_spinlock.h>
+#include <linux/mutex.h>
#include <asm/semaphore.h>
#endif
@@ -575,7 +576,7 @@
* @j_wait_checkpoint: Wait queue to trigger checkpointing
* @j_wait_commit: Wait queue to trigger commit
* @j_wait_updates: Wait queue to wait for updates to complete
- * @j_checkpoint_sem: Semaphore for locking against concurrent checkpoints
+ * @j_checkpoint_mutex: Mutex for locking against concurrent checkpoints
* @j_head: Journal head - identifies the first unused block in the journal
* @j_tail: Journal tail - identifies the oldest still-used block in the
* journal.
@@ -645,7 +646,7 @@
int j_barrier_count;
/* The barrier lock itself */
- struct semaphore j_barrier;
+ struct mutex j_barrier;
/*
* Transactions: The current running transaction...
@@ -687,7 +688,7 @@
wait_queue_head_t j_wait_updates;
/* Semaphore for locking against concurrent checkpoints */
- struct semaphore j_checkpoint_sem;
+ struct mutex j_checkpoint_mutex;
/*
* Journal head: identifies the first unused block in the journal.
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 3b507bf..bb6e7dd 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -91,6 +91,9 @@
extern long (*panic_blink)(long time);
NORET_TYPE void panic(const char * fmt, ...)
__attribute__ ((NORET_AND format (printf, 1, 2)));
+extern void oops_enter(void);
+extern void oops_exit(void);
+extern int oops_may_print(void);
fastcall NORET_TYPE void do_exit(long error_code)
ATTRIB_NORET;
NORET_TYPE void complete_and_exit(struct completion *, long)
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 669756b..778adc0 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -36,6 +36,7 @@
#include <linux/percpu.h>
#include <linux/spinlock.h>
#include <linux/rcupdate.h>
+#include <linux/mutex.h>
#ifdef CONFIG_KPROBES
#include <asm/kprobes.h>
@@ -152,7 +153,7 @@
};
extern spinlock_t kretprobe_lock;
-extern struct semaphore kprobe_mutex;
+extern struct mutex kprobe_mutex;
extern int arch_prepare_kprobe(struct kprobe *p);
extern void arch_arm_kprobe(struct kprobe *p);
extern void arch_disarm_kprobe(struct kprobe *p);
diff --git a/include/linux/loop.h b/include/linux/loop.h
index f965067..e76c761 100644
--- a/include/linux/loop.h
+++ b/include/linux/loop.h
@@ -17,6 +17,7 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
/* Possible states of device */
enum {
@@ -60,7 +61,7 @@
int lo_state;
struct completion lo_done;
struct completion lo_bh_done;
- struct semaphore lo_ctl_mutex;
+ struct mutex lo_ctl_mutex;
int lo_pending;
request_queue_t *lo_queue;
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 8bcd945..779e6a5 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -184,6 +184,7 @@
#include <linux/string.h>
#include <linux/nls.h>
#include <linux/fs.h>
+#include <linux/mutex.h>
struct fat_mount_options {
uid_t fs_uid;
@@ -226,7 +227,7 @@
unsigned long max_cluster; /* maximum cluster number */
unsigned long root_cluster; /* first cluster of the root directory */
unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */
- struct semaphore fat_lock;
+ struct mutex fat_lock;
unsigned int prev_free; /* previously allocated cluster number */
unsigned int free_clusters; /* -1 if undefined */
struct fat_mount_options options;
diff --git a/include/linux/nbd.h b/include/linux/nbd.h
index f95d51f..a6ce409 100644
--- a/include/linux/nbd.h
+++ b/include/linux/nbd.h
@@ -38,6 +38,7 @@
#ifdef __KERNEL__
#include <linux/wait.h>
+#include <linux/mutex.h>
/* values for flags field */
#define NBD_READ_ONLY 0x0001
@@ -57,7 +58,7 @@
struct request *active_req;
wait_queue_head_t active_wq;
- struct semaphore tx_lock;
+ struct mutex tx_lock;
struct gendisk *disk;
int blksize;
u64 bytesize;
diff --git a/include/linux/ncp_fs_i.h b/include/linux/ncp_fs_i.h
index 415be1e..bdb4c8a 100644
--- a/include/linux/ncp_fs_i.h
+++ b/include/linux/ncp_fs_i.h
@@ -19,7 +19,7 @@
__le32 DosDirNum;
__u8 volNumber;
__le32 nwattr;
- struct semaphore open_sem;
+ struct mutex open_mutex;
atomic_t opened;
int access;
int flags;
diff --git a/include/linux/ncp_fs_sb.h b/include/linux/ncp_fs_sb.h
index cf858eb..b089d95 100644
--- a/include/linux/ncp_fs_sb.h
+++ b/include/linux/ncp_fs_sb.h
@@ -11,6 +11,7 @@
#include <linux/types.h>
#include <linux/ncp_mount.h>
#include <linux/net.h>
+#include <linux/mutex.h>
#ifdef __KERNEL__
@@ -51,7 +52,7 @@
receive replies */
int lock; /* To prevent mismatch in protocols. */
- struct semaphore sem;
+ struct mutex mutex;
int current_size; /* for packet preparation */
int has_subfunction;
@@ -96,7 +97,7 @@
struct {
struct work_struct tq; /* STREAM/DGRAM: data/error ready */
struct ncp_request_reply* creq; /* STREAM/DGRAM: awaiting reply from this request */
- struct semaphore creq_sem; /* DGRAM only: lock accesses to rcv.creq */
+ struct mutex creq_mutex; /* DGRAM only: lock accesses to rcv.creq */
unsigned int state; /* STREAM only: receiver state */
struct {
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 5be87ba..6df2585 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -188,6 +188,8 @@
extern void device_resume(void);
#ifdef CONFIG_PM
+extern suspend_disk_method_t pm_disk_mode;
+
extern int device_suspend(pm_message_t state);
#define device_set_wakeup_enable(dev,val) \
@@ -215,7 +217,6 @@
static inline void dpm_runtime_resume(struct device * dev)
{
-
}
#endif
diff --git a/include/linux/profile.h b/include/linux/profile.h
index 026969a..1f2fea6 100644
--- a/include/linux/profile.h
+++ b/include/linux/profile.h
@@ -14,6 +14,7 @@
struct proc_dir_entry;
struct pt_regs;
+struct notifier_block;
/* init basic kernel profiler */
void __init profile_init(void);
@@ -32,7 +33,6 @@
#ifdef CONFIG_PROFILING
-struct notifier_block;
struct task_struct;
struct mm_struct;
diff --git a/include/linux/quota.h b/include/linux/quota.h
index f33aeb2..8dc2d04 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -38,6 +38,7 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#define __DQUOT_VERSION__ "dquot_6.5.1"
#define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
@@ -215,7 +216,7 @@
struct list_head dq_inuse; /* List of all quotas */
struct list_head dq_free; /* Free list element */
struct list_head dq_dirty; /* List of dirty dquots */
- struct semaphore dq_lock; /* dquot IO lock */
+ struct mutex dq_lock; /* dquot IO lock */
atomic_t dq_count; /* Use count */
wait_queue_head_t dq_wait_unused; /* Wait queue for dquot to become unused */
struct super_block *dq_sb; /* superblock this applies to */
@@ -285,8 +286,8 @@
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
- struct semaphore dqio_sem; /* lock device while I/O in progress */
- struct semaphore dqonoff_sem; /* Serialize quotaon & quotaoff */
+ struct mutex dqio_mutex; /* lock device while I/O in progress */
+ struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */
struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */
struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
diff --git a/include/linux/raid/raid1.h b/include/linux/raid/raid1.h
index 9d5494a..3009c81 100644
--- a/include/linux/raid/raid1.h
+++ b/include/linux/raid/raid1.h
@@ -130,6 +130,6 @@
* with failure when last write completes (and all failed).
* Record that bi_end_io was called with this flag...
*/
-#define R1BIO_Returned 4
+#define R1BIO_Returned 6
#endif
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index c2ec6c7..5673008 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -113,8 +113,6 @@
DECLARE_PER_CPU(struct rcu_data, rcu_data);
DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);
-extern struct rcu_ctrlblk rcu_ctrlblk;
-extern struct rcu_ctrlblk rcu_bh_ctrlblk;
/*
* Increment the quiescent state counter.
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 850a974..b95f6eb 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -4,7 +4,7 @@
#include <linux/types.h>
#include <linux/string.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
struct seq_operations;
struct file;
@@ -19,7 +19,7 @@
size_t count;
loff_t index;
loff_t version;
- struct semaphore sem;
+ struct mutex lock;
struct seq_operations *op;
void *private;
};
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 12415dd9..54eac8a 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -234,14 +234,15 @@
/* linux/mm/swapfile.c */
extern long total_swap_pages;
extern unsigned int nr_swapfiles;
-extern struct swap_info_struct swap_info[];
extern void si_swapinfo(struct sysinfo *);
extern swp_entry_t get_swap_page(void);
-extern swp_entry_t get_swap_page_of_type(int type);
+extern swp_entry_t get_swap_page_of_type(int);
extern int swap_duplicate(swp_entry_t);
extern int valid_swaphandles(swp_entry_t, unsigned long *);
extern void swap_free(swp_entry_t);
extern void free_swap_and_cache(swp_entry_t);
+extern int swap_type_of(dev_t);
+extern unsigned int count_swap_pages(int, int);
extern sector_t map_swap_page(struct swap_info_struct *, pgoff_t);
extern struct swap_info_struct *get_swap_info_struct(unsigned);
extern int can_share_swap_page(struct page *);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f45cd74..f13f49a 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -24,6 +24,7 @@
#include <linux/tty_driver.h>
#include <linux/tty_ldisc.h>
#include <linux/screen_info.h>
+#include <linux/mutex.h>
#include <asm/system.h>
@@ -231,8 +232,8 @@
int canon_data;
unsigned long canon_head;
unsigned int canon_column;
- struct semaphore atomic_read;
- struct semaphore atomic_write;
+ struct mutex atomic_read_lock;
+ struct mutex atomic_write_lock;
unsigned char *write_buf;
int write_cnt;
spinlock_t read_lock;
@@ -319,8 +320,7 @@
extern void tty_wakeup(struct tty_struct *tty);
extern void tty_ldisc_flush(struct tty_struct *tty);
-struct semaphore;
-extern struct semaphore tty_sem;
+extern struct mutex tty_mutex;
/* n_tty.c */
extern struct tty_ldisc tty_ldisc_N_TTY;
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index 222faf9..0c6169f 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -7,14 +7,8 @@
extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
-#ifdef INCLUDE_INLINE_FUNCS
-#define _INLINE_ extern
-#else
-#define _INLINE_ static __inline__
-#endif
-
-_INLINE_ int tty_insert_flip_char(struct tty_struct *tty,
- unsigned char ch, char flag)
+static inline int tty_insert_flip_char(struct tty_struct *tty,
+ unsigned char ch, char flag)
{
struct tty_buffer *tb = tty->buf.tail;
if (tb && tb->active && tb->used < tb->size) {
@@ -25,7 +19,7 @@
return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
}
-_INLINE_ void tty_schedule_flip(struct tty_struct *tty)
+static inline void tty_schedule_flip(struct tty_struct *tty)
{
unsigned long flags;
spin_lock_irqsave(&tty->buf.lock, flags);
diff --git a/include/linux/udf_fs_sb.h b/include/linux/udf_fs_sb.h
index b15ff2e..80ae9ef 100644
--- a/include/linux/udf_fs_sb.h
+++ b/include/linux/udf_fs_sb.h
@@ -13,7 +13,7 @@
#ifndef _UDF_FS_SB_H
#define _UDF_FS_SB_H 1
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#pragma pack(1)
@@ -111,7 +111,7 @@
/* VAT inode */
struct inode *s_vat;
- struct semaphore s_alloc_sem;
+ struct mutex s_alloc_mutex;
};
#endif /* _UDF_FS_SB_H */
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index fab5aed..530ae3f 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -73,6 +73,11 @@
int vt_waitactive(int vt);
void change_console(struct vc_data *new_vc);
void reset_vc(struct vc_data *vc);
+#ifdef CONFIG_VT
+int is_console_suspend_safe(void);
+#else
+static inline int is_console_suspend_safe(void) { return 1; }
+#endif
/*
* vc_screen.c shares this temporary buffer with the console write code so that
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a05cabd..405f903 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -56,6 +56,7 @@
sys_chroot(".");
mount_devfs_fs ();
+ current->flags |= PF_NOFREEZE;
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid > 0) {
while (pid != sys_wait4(-1, NULL, 0, NULL))
diff --git a/init/main.c b/init/main.c
index 4c194c4..2714e0e 100644
--- a/init/main.c
+++ b/init/main.c
@@ -325,7 +325,7 @@
#else
#ifdef __GENERIC_PER_CPU
-unsigned long __per_cpu_offset[NR_CPUS];
+unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(__per_cpu_offset);
@@ -333,6 +333,7 @@
{
unsigned long size, i;
char *ptr;
+ unsigned long nr_possible_cpus = num_possible_cpus();
/* Copy section for each CPU (we discard the original) */
size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
@@ -340,12 +341,12 @@
if (size < PERCPU_ENOUGH_ROOM)
size = PERCPU_ENOUGH_ROOM;
#endif
+ ptr = alloc_bootmem(size * nr_possible_cpus);
- ptr = alloc_bootmem(size * NR_CPUS);
-
- for (i = 0; i < NR_CPUS; i++, ptr += size) {
+ for_each_cpu(i) {
__per_cpu_offset[i] = ptr - __per_cpu_start;
memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+ ptr += size;
}
}
#endif /* !__GENERIC_PER_CPU */
@@ -438,6 +439,15 @@
* Activate the first processor.
*/
+static void __init boot_cpu_init(void)
+{
+ int cpu = smp_processor_id();
+ /* Mark the boot cpu "present", "online" etc for SMP and UP case */
+ cpu_set(cpu, cpu_online_map);
+ cpu_set(cpu, cpu_present_map);
+ cpu_set(cpu, cpu_possible_map);
+}
+
asmlinkage void __init start_kernel(void)
{
char * command_line;
@@ -447,17 +457,13 @@
* enable them
*/
lock_kernel();
+ boot_cpu_init();
page_address_init();
printk(KERN_NOTICE);
printk(linux_banner);
setup_arch(&command_line);
setup_per_cpu_areas();
-
- /*
- * Mark the boot cpu "online" so that it can call console drivers in
- * printk() and can access its per-cpu storage.
- */
- smp_prepare_boot_cpu();
+ smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
/*
* Set up the scheduler prior starting any interrupts (such as the
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 12815d3..c86ee05 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -53,7 +53,7 @@
#include <asm/uaccess.h>
#include <asm/atomic.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#define CPUSET_SUPER_MAGIC 0x27e0eb
@@ -168,63 +168,57 @@
static struct super_block *cpuset_sb;
/*
- * We have two global cpuset semaphores below. They can nest.
- * It is ok to first take manage_sem, then nest callback_sem. We also
+ * We have two global cpuset mutexes below. They can nest.
+ * It is ok to first take manage_mutex, then nest callback_mutex. We also
* require taking task_lock() when dereferencing a tasks cpuset pointer.
* See "The task_lock() exception", at the end of this comment.
*
- * A task must hold both semaphores to modify cpusets. If a task
- * holds manage_sem, then it blocks others wanting that semaphore,
- * ensuring that it is the only task able to also acquire callback_sem
+ * A task must hold both mutexes to modify cpusets. If a task
+ * holds manage_mutex, then it blocks others wanting that mutex,
+ * ensuring that it is the only task able to also acquire callback_mutex
* and be able to modify cpusets. It can perform various checks on
* the cpuset structure first, knowing nothing will change. It can
- * also allocate memory while just holding manage_sem. While it is
+ * also allocate memory while just holding manage_mutex. While it is
* performing these checks, various callback routines can briefly
- * acquire callback_sem to query cpusets. Once it is ready to make
- * the changes, it takes callback_sem, blocking everyone else.
+ * acquire callback_mutex to query cpusets. Once it is ready to make
+ * the changes, it takes callback_mutex, blocking everyone else.
*
* Calls to the kernel memory allocator can not be made while holding
- * callback_sem, as that would risk double tripping on callback_sem
+ * callback_mutex, as that would risk double tripping on callback_mutex
* from one of the callbacks into the cpuset code from within
* __alloc_pages().
*
- * If a task is only holding callback_sem, then it has read-only
+ * If a task is only holding callback_mutex, then it has read-only
* access to cpusets.
*
* The task_struct fields mems_allowed and mems_generation may only
* be accessed in the context of that task, so require no locks.
*
* Any task can increment and decrement the count field without lock.
- * So in general, code holding manage_sem or callback_sem can't rely
+ * So in general, code holding manage_mutex or callback_mutex can't rely
* on the count field not changing. However, if the count goes to
- * zero, then only attach_task(), which holds both semaphores, can
+ * zero, then only attach_task(), which holds both mutexes, can
* increment it again. Because a count of zero means that no tasks
* are currently attached, therefore there is no way a task attached
* to that cpuset can fork (the other way to increment the count).
- * So code holding manage_sem or callback_sem can safely assume that
+ * So code holding manage_mutex or callback_mutex can safely assume that
* if the count is zero, it will stay zero. Similarly, if a task
- * holds manage_sem or callback_sem on a cpuset with zero count, it
+ * holds manage_mutex or callback_mutex on a cpuset with zero count, it
* knows that the cpuset won't be removed, as cpuset_rmdir() needs
- * both of those semaphores.
- *
- * A possible optimization to improve parallelism would be to make
- * callback_sem a R/W semaphore (rwsem), allowing the callback routines
- * to proceed in parallel, with read access, until the holder of
- * manage_sem needed to take this rwsem for exclusive write access
- * and modify some cpusets.
+ * both of those mutexes.
*
* The cpuset_common_file_write handler for operations that modify
- * the cpuset hierarchy holds manage_sem across the entire operation,
+ * the cpuset hierarchy holds manage_mutex across the entire operation,
* single threading all such cpuset modifications across the system.
*
- * The cpuset_common_file_read() handlers only hold callback_sem across
+ * The cpuset_common_file_read() handlers only hold callback_mutex across
* small pieces of code, such as when reading out possibly multi-word
* cpumasks and nodemasks.
*
* The fork and exit callbacks cpuset_fork() and cpuset_exit(), don't
- * (usually) take either semaphore. These are the two most performance
+ * (usually) take either mutex. These are the two most performance
* critical pieces of code here. The exception occurs on cpuset_exit(),
- * when a task in a notify_on_release cpuset exits. Then manage_sem
+ * when a task in a notify_on_release cpuset exits. Then manage_mutex
* is taken, and if the cpuset count is zero, a usermode call made
* to /sbin/cpuset_release_agent with the name of the cpuset (path
* relative to the root of cpuset file system) as the argument.
@@ -242,9 +236,9 @@
*
* The need for this exception arises from the action of attach_task(),
* which overwrites one tasks cpuset pointer with another. It does
- * so using both semaphores, however there are several performance
+ * so using both mutexes, however there are several performance
* critical places that need to reference task->cpuset without the
- * expense of grabbing a system global semaphore. Therefore except as
+ * expense of grabbing a system global mutex. Therefore except as
* noted below, when dereferencing or, as in attach_task(), modifying
* a tasks cpuset pointer we use task_lock(), which acts on a spinlock
* (task->alloc_lock) already in the task_struct routinely used for
@@ -256,8 +250,8 @@
* the routine cpuset_update_task_memory_state().
*/
-static DECLARE_MUTEX(manage_sem);
-static DECLARE_MUTEX(callback_sem);
+static DEFINE_MUTEX(manage_mutex);
+static DEFINE_MUTEX(callback_mutex);
/*
* A couple of forward declarations required, due to cyclic reference loop:
@@ -432,7 +426,7 @@
}
/*
- * Call with manage_sem held. Writes path of cpuset into buf.
+ * Call with manage_mutex held. Writes path of cpuset into buf.
* Returns 0 on success, -errno on error.
*/
@@ -484,11 +478,11 @@
* status of the /sbin/cpuset_release_agent task, so no sense holding
* our caller up for that.
*
- * When we had only one cpuset semaphore, we had to call this
+ * When we had only one cpuset mutex, we had to call this
* without holding it, to avoid deadlock when call_usermodehelper()
* allocated memory. With two locks, we could now call this while
- * holding manage_sem, but we still don't, so as to minimize
- * the time manage_sem is held.
+ * holding manage_mutex, but we still don't, so as to minimize
+ * the time manage_mutex is held.
*/
static void cpuset_release_agent(const char *pathbuf)
@@ -520,15 +514,15 @@
* cs is notify_on_release() and now both the user count is zero and
* the list of children is empty, prepare cpuset path in a kmalloc'd
* buffer, to be returned via ppathbuf, so that the caller can invoke
- * cpuset_release_agent() with it later on, once manage_sem is dropped.
- * Call here with manage_sem held.
+ * cpuset_release_agent() with it later on, once manage_mutex is dropped.
+ * Call here with manage_mutex held.
*
* This check_for_release() routine is responsible for kmalloc'ing
* pathbuf. The above cpuset_release_agent() is responsible for
* kfree'ing pathbuf. The caller of these routines is responsible
* for providing a pathbuf pointer, initialized to NULL, then
- * calling check_for_release() with manage_sem held and the address
- * of the pathbuf pointer, then dropping manage_sem, then calling
+ * calling check_for_release() with manage_mutex held and the address
+ * of the pathbuf pointer, then dropping manage_mutex, then calling
* cpuset_release_agent() with pathbuf, as set by check_for_release().
*/
@@ -559,7 +553,7 @@
* One way or another, we guarantee to return some non-empty subset
* of cpu_online_map.
*
- * Call with callback_sem held.
+ * Call with callback_mutex held.
*/
static void guarantee_online_cpus(const struct cpuset *cs, cpumask_t *pmask)
@@ -583,7 +577,7 @@
* One way or another, we guarantee to return some non-empty subset
* of node_online_map.
*
- * Call with callback_sem held.
+ * Call with callback_mutex held.
*/
static void guarantee_online_mems(const struct cpuset *cs, nodemask_t *pmask)
@@ -608,12 +602,12 @@
* current->cpuset if a task has its memory placement changed.
* Do not call this routine if in_interrupt().
*
- * Call without callback_sem or task_lock() held. May be called
- * with or without manage_sem held. Doesn't need task_lock to guard
+ * Call without callback_mutex or task_lock() held. May be called
+ * with or without manage_mutex held. Doesn't need task_lock to guard
* against another task changing a non-NULL cpuset pointer to NULL,
* as that is only done by a task on itself, and if the current task
* is here, it is not simultaneously in the exit code NULL'ing its
- * cpuset pointer. This routine also might acquire callback_sem and
+ * cpuset pointer. This routine also might acquire callback_mutex and
* current->mm->mmap_sem during call.
*
* Reading current->cpuset->mems_generation doesn't need task_lock
@@ -658,13 +652,13 @@
}
if (my_cpusets_mem_gen != tsk->cpuset_mems_generation) {
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
task_lock(tsk);
cs = tsk->cpuset; /* Maybe changed when task not locked */
guarantee_online_mems(cs, &tsk->mems_allowed);
tsk->cpuset_mems_generation = cs->mems_generation;
task_unlock(tsk);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
mpol_rebind_task(tsk, &tsk->mems_allowed);
}
}
@@ -674,7 +668,7 @@
*
* One cpuset is a subset of another if all its allowed CPUs and
* Memory Nodes are a subset of the other, and its exclusive flags
- * are only set if the other's are set. Call holding manage_sem.
+ * are only set if the other's are set. Call holding manage_mutex.
*/
static int is_cpuset_subset(const struct cpuset *p, const struct cpuset *q)
@@ -692,7 +686,7 @@
* If we replaced the flag and mask values of the current cpuset
* (cur) with those values in the trial cpuset (trial), would
* our various subset and exclusive rules still be valid? Presumes
- * manage_sem held.
+ * manage_mutex held.
*
* 'cur' is the address of an actual, in-use cpuset. Operations
* such as list traversal that depend on the actual address of the
@@ -746,7 +740,7 @@
* exclusive child cpusets
* Build these two partitions by calling partition_sched_domains
*
- * Call with manage_sem held. May nest a call to the
+ * Call with manage_mutex held. May nest a call to the
* lock_cpu_hotplug()/unlock_cpu_hotplug() pair.
*/
@@ -792,7 +786,7 @@
}
/*
- * Call with manage_sem held. May take callback_sem during call.
+ * Call with manage_mutex held. May take callback_mutex during call.
*/
static int update_cpumask(struct cpuset *cs, char *buf)
@@ -811,9 +805,9 @@
if (retval < 0)
return retval;
cpus_unchanged = cpus_equal(cs->cpus_allowed, trialcs.cpus_allowed);
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
cs->cpus_allowed = trialcs.cpus_allowed;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
if (is_cpu_exclusive(cs) && !cpus_unchanged)
update_cpu_domains(cs);
return 0;
@@ -827,7 +821,7 @@
* the cpuset is marked 'memory_migrate', migrate the tasks
* pages to the new memory.
*
- * Call with manage_sem held. May take callback_sem during call.
+ * Call with manage_mutex held. May take callback_mutex during call.
* Will take tasklist_lock, scan tasklist for tasks in cpuset cs,
* lock each such tasks mm->mmap_sem, scan its vma's and rebind
* their mempolicies to the cpusets new mems_allowed.
@@ -862,11 +856,11 @@
if (retval < 0)
goto done;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
cs->mems_allowed = trialcs.mems_allowed;
atomic_inc(&cpuset_mems_generation);
cs->mems_generation = atomic_read(&cpuset_mems_generation);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
set_cpuset_being_rebound(cs); /* causes mpol_copy() rebind */
@@ -922,7 +916,7 @@
* tasklist_lock. Forks can happen again now - the mpol_copy()
* cpuset_being_rebound check will catch such forks, and rebind
* their vma mempolicies too. Because we still hold the global
- * cpuset manage_sem, we know that no other rebind effort will
+ * cpuset manage_mutex, we know that no other rebind effort will
* be contending for the global variable cpuset_being_rebound.
* It's ok if we rebind the same mm twice; mpol_rebind_mm()
* is idempotent. Also migrate pages in each mm to new nodes.
@@ -948,7 +942,7 @@
}
/*
- * Call with manage_sem held.
+ * Call with manage_mutex held.
*/
static int update_memory_pressure_enabled(struct cpuset *cs, char *buf)
@@ -967,7 +961,7 @@
* cs: the cpuset to update
* buf: the buffer where we read the 0 or 1
*
- * Call with manage_sem held.
+ * Call with manage_mutex held.
*/
static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, char *buf)
@@ -989,12 +983,12 @@
return err;
cpu_exclusive_changed =
(is_cpu_exclusive(cs) != is_cpu_exclusive(&trialcs));
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
if (turning_on)
set_bit(bit, &cs->flags);
else
clear_bit(bit, &cs->flags);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
if (cpu_exclusive_changed)
update_cpu_domains(cs);
@@ -1104,7 +1098,7 @@
* writing the path of the old cpuset in 'ppathbuf' if it needs to be
* notified on release.
*
- * Call holding manage_sem. May take callback_sem and task_lock of
+ * Call holding manage_mutex. May take callback_mutex and task_lock of
* the task 'pid' during call.
*/
@@ -1144,13 +1138,13 @@
get_task_struct(tsk);
}
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
task_lock(tsk);
oldcs = tsk->cpuset;
if (!oldcs) {
task_unlock(tsk);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
put_task_struct(tsk);
return -ESRCH;
}
@@ -1164,7 +1158,7 @@
from = oldcs->mems_allowed;
to = cs->mems_allowed;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
mm = get_task_mm(tsk);
if (mm) {
@@ -1221,7 +1215,7 @@
}
buffer[nbytes] = 0; /* nul-terminate */
- down(&manage_sem);
+ mutex_lock(&manage_mutex);
if (is_removed(cs)) {
retval = -ENODEV;
@@ -1264,7 +1258,7 @@
if (retval == 0)
retval = nbytes;
out2:
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
cpuset_release_agent(pathbuf);
out1:
kfree(buffer);
@@ -1304,9 +1298,9 @@
{
cpumask_t mask;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
mask = cs->cpus_allowed;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
return cpulist_scnprintf(page, PAGE_SIZE, mask);
}
@@ -1315,9 +1309,9 @@
{
nodemask_t mask;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
mask = cs->mems_allowed;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
return nodelist_scnprintf(page, PAGE_SIZE, mask);
}
@@ -1598,7 +1592,7 @@
* Handle an open on 'tasks' file. Prepare a buffer listing the
* process id's of tasks currently attached to the cpuset being opened.
*
- * Does not require any specific cpuset semaphores, and does not take any.
+ * Does not require any specific cpuset mutexes, and does not take any.
*/
static int cpuset_tasks_open(struct inode *unused, struct file *file)
{
@@ -1754,7 +1748,7 @@
* name: name of the new cpuset. Will be strcpy'ed.
* mode: mode to set on new inode
*
- * Must be called with the semaphore on the parent inode held
+ * Must be called with the mutex on the parent inode held
*/
static long cpuset_create(struct cpuset *parent, const char *name, int mode)
@@ -1766,7 +1760,7 @@
if (!cs)
return -ENOMEM;
- down(&manage_sem);
+ mutex_lock(&manage_mutex);
cpuset_update_task_memory_state();
cs->flags = 0;
if (notify_on_release(parent))
@@ -1782,28 +1776,28 @@
cs->parent = parent;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
list_add(&cs->sibling, &cs->parent->children);
number_of_cpusets++;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
err = cpuset_create_dir(cs, name, mode);
if (err < 0)
goto err;
/*
- * Release manage_sem before cpuset_populate_dir() because it
+ * Release manage_mutex before cpuset_populate_dir() because it
* will down() this new directory's i_mutex and if we race with
* another mkdir, we might deadlock.
*/
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
err = cpuset_populate_dir(cs->dentry);
/* If err < 0, we have a half-filled directory - oh well ;) */
return 0;
err:
list_del(&cs->sibling);
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
kfree(cs);
return err;
}
@@ -1825,18 +1819,18 @@
/* the vfs holds both inode->i_mutex already */
- down(&manage_sem);
+ mutex_lock(&manage_mutex);
cpuset_update_task_memory_state();
if (atomic_read(&cs->count) > 0) {
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
return -EBUSY;
}
if (!list_empty(&cs->children)) {
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
return -EBUSY;
}
parent = cs->parent;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
set_bit(CS_REMOVED, &cs->flags);
if (is_cpu_exclusive(cs))
update_cpu_domains(cs);
@@ -1848,10 +1842,10 @@
cpuset_d_remove_dir(d);
dput(d);
number_of_cpusets--;
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
if (list_empty(&parent->children))
check_for_release(parent, &pathbuf);
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
cpuset_release_agent(pathbuf);
return 0;
}
@@ -1960,19 +1954,19 @@
* Description: Detach cpuset from @tsk and release it.
*
* Note that cpusets marked notify_on_release force every task in
- * them to take the global manage_sem semaphore when exiting.
+ * them to take the global manage_mutex mutex when exiting.
* This could impact scaling on very large systems. Be reluctant to
* use notify_on_release cpusets where very high task exit scaling
* is required on large systems.
*
* Don't even think about derefencing 'cs' after the cpuset use count
- * goes to zero, except inside a critical section guarded by manage_sem
- * or callback_sem. Otherwise a zero cpuset use count is a license to
+ * goes to zero, except inside a critical section guarded by manage_mutex
+ * or callback_mutex. Otherwise a zero cpuset use count is a license to
* any other task to nuke the cpuset immediately, via cpuset_rmdir().
*
- * This routine has to take manage_sem, not callback_sem, because
- * it is holding that semaphore while calling check_for_release(),
- * which calls kmalloc(), so can't be called holding callback__sem().
+ * This routine has to take manage_mutex, not callback_mutex, because
+ * it is holding that mutex while calling check_for_release(),
+ * which calls kmalloc(), so can't be called holding callback_mutex().
*
* We don't need to task_lock() this reference to tsk->cpuset,
* because tsk is already marked PF_EXITING, so attach_task() won't
@@ -2022,10 +2016,10 @@
if (notify_on_release(cs)) {
char *pathbuf = NULL;
- down(&manage_sem);
+ mutex_lock(&manage_mutex);
if (atomic_dec_and_test(&cs->count))
check_for_release(cs, &pathbuf);
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
cpuset_release_agent(pathbuf);
} else {
atomic_dec(&cs->count);
@@ -2046,11 +2040,11 @@
{
cpumask_t mask;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
task_lock(tsk);
guarantee_online_cpus(tsk->cpuset, &mask);
task_unlock(tsk);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
return mask;
}
@@ -2074,11 +2068,11 @@
{
nodemask_t mask;
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
task_lock(tsk);
guarantee_online_mems(tsk->cpuset, &mask);
task_unlock(tsk);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
return mask;
}
@@ -2104,7 +2098,7 @@
/*
* nearest_exclusive_ancestor() - Returns the nearest mem_exclusive
- * ancestor to the specified cpuset. Call holding callback_sem.
+ * ancestor to the specified cpuset. Call holding callback_mutex.
* If no ancestor is mem_exclusive (an unusual configuration), then
* returns the root cpuset.
*/
@@ -2131,12 +2125,12 @@
* GFP_KERNEL allocations are not so marked, so can escape to the
* nearest mem_exclusive ancestor cpuset.
*
- * Scanning up parent cpusets requires callback_sem. The __alloc_pages()
+ * Scanning up parent cpusets requires callback_mutex. The __alloc_pages()
* routine only calls here with __GFP_HARDWALL bit _not_ set if
* it's a GFP_KERNEL allocation, and all nodes in the current tasks
* mems_allowed came up empty on the first pass over the zonelist.
* So only GFP_KERNEL allocations, if all nodes in the cpuset are
- * short of memory, might require taking the callback_sem semaphore.
+ * short of memory, might require taking the callback_mutex mutex.
*
* The first loop over the zonelist in mm/page_alloc.c:__alloc_pages()
* calls here with __GFP_HARDWALL always set in gfp_mask, enforcing
@@ -2171,31 +2165,31 @@
return 1;
/* Not hardwall and node outside mems_allowed: scan up cpusets */
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
task_lock(current);
cs = nearest_exclusive_ancestor(current->cpuset);
task_unlock(current);
allowed = node_isset(node, cs->mems_allowed);
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
return allowed;
}
/**
* cpuset_lock - lock out any changes to cpuset structures
*
- * The out of memory (oom) code needs to lock down cpusets
+ * The out of memory (oom) code needs to mutex_lock cpusets
* from being changed while it scans the tasklist looking for a
- * task in an overlapping cpuset. Expose callback_sem via this
+ * task in an overlapping cpuset. Expose callback_mutex via this
* cpuset_lock() routine, so the oom code can lock it, before
* locking the task list. The tasklist_lock is a spinlock, so
- * must be taken inside callback_sem.
+ * must be taken inside callback_mutex.
*/
void cpuset_lock(void)
{
- down(&callback_sem);
+ mutex_lock(&callback_mutex);
}
/**
@@ -2206,7 +2200,7 @@
void cpuset_unlock(void)
{
- up(&callback_sem);
+ mutex_unlock(&callback_mutex);
}
/**
@@ -2218,7 +2212,7 @@
* determine if task @p's memory usage might impact the memory
* available to the current task.
*
- * Call while holding callback_sem.
+ * Call while holding callback_mutex.
**/
int cpuset_excl_nodes_overlap(const struct task_struct *p)
@@ -2289,7 +2283,7 @@
* - Used for /proc/<pid>/cpuset.
* - No need to task_lock(tsk) on this tsk->cpuset reference, as it
* doesn't really matter if tsk->cpuset changes after we read it,
- * and we take manage_sem, keeping attach_task() from changing it
+ * and we take manage_mutex, keeping attach_task() from changing it
* anyway.
*/
@@ -2305,7 +2299,7 @@
return -ENOMEM;
tsk = m->private;
- down(&manage_sem);
+ mutex_lock(&manage_mutex);
cs = tsk->cpuset;
if (!cs) {
retval = -EINVAL;
@@ -2318,7 +2312,7 @@
seq_puts(m, buf);
seq_putc(m, '\n');
out:
- up(&manage_sem);
+ mutex_unlock(&manage_mutex);
kfree(buf);
return retval;
}
diff --git a/kernel/exit.c b/kernel/exit.c
index d1e8d500..8037405 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -345,9 +345,9 @@
exit_mm(current);
set_special_pids(1, 1);
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
current->signal->tty = NULL;
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
/* Block and flush all signals */
sigfillset(&blocked);
diff --git a/kernel/fork.c b/kernel/fork.c
index 9bd7b65..c79ae0b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -607,12 +607,12 @@
atomic_set(&newf->count, 1);
spin_lock_init(&newf->file_lock);
+ newf->next_fd = 0;
fdt = &newf->fdtab;
- fdt->next_fd = 0;
fdt->max_fds = NR_OPEN_DEFAULT;
- fdt->max_fdset = __FD_SETSIZE;
- fdt->close_on_exec = &newf->close_on_exec_init;
- fdt->open_fds = &newf->open_fds_init;
+ fdt->max_fdset = EMBEDDED_FD_SET_SIZE;
+ fdt->close_on_exec = (fd_set *)&newf->close_on_exec_init;
+ fdt->open_fds = (fd_set *)&newf->open_fds_init;
fdt->fd = &newf->fd_array[0];
INIT_RCU_HEAD(&fdt->rcu);
fdt->free_files = NULL;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index fef1af8..1fb9f75 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -48,7 +48,7 @@
static struct hlist_head kprobe_table[KPROBE_TABLE_SIZE];
static struct hlist_head kretprobe_inst_table[KPROBE_TABLE_SIZE];
-DECLARE_MUTEX(kprobe_mutex); /* Protects kprobe_table */
+DEFINE_MUTEX(kprobe_mutex); /* Protects kprobe_table */
DEFINE_SPINLOCK(kretprobe_lock); /* Protects kretprobe_inst_table */
static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL;
@@ -460,7 +460,7 @@
}
p->nmissed = 0;
- down(&kprobe_mutex);
+ mutex_lock(&kprobe_mutex);
old_p = get_kprobe(p->addr);
if (old_p) {
ret = register_aggr_kprobe(old_p, p);
@@ -477,7 +477,7 @@
arch_arm_kprobe(p);
out:
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
if (ret && probed_mod)
module_put(probed_mod);
@@ -496,10 +496,10 @@
struct kprobe *old_p, *list_p;
int cleanup_p;
- down(&kprobe_mutex);
+ mutex_lock(&kprobe_mutex);
old_p = get_kprobe(p->addr);
if (unlikely(!old_p)) {
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
return;
}
if (p != old_p) {
@@ -507,7 +507,7 @@
if (list_p == p)
/* kprobe p is a valid probe */
goto valid_p;
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
return;
}
valid_p:
@@ -523,7 +523,7 @@
cleanup_p = 0;
}
- up(&kprobe_mutex);
+ mutex_unlock(&kprobe_mutex);
synchronize_sched();
if (p->mod_refcounted &&
diff --git a/kernel/kthread.c b/kernel/kthread.c
index e75950a..6a53738 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -12,6 +12,7 @@
#include <linux/unistd.h>
#include <linux/file.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <asm/semaphore.h>
/*
@@ -41,7 +42,7 @@
/* Thread stopping is done by setthing this var: lock serializes
* multiple kthread_stop calls. */
-static DECLARE_MUTEX(kthread_stop_lock);
+static DEFINE_MUTEX(kthread_stop_lock);
static struct kthread_stop_info kthread_stop_info;
int kthread_should_stop(void)
@@ -173,7 +174,7 @@
{
int ret;
- down(&kthread_stop_lock);
+ mutex_lock(&kthread_stop_lock);
/* It could exit after stop_info.k set, but before wake_up_process. */
get_task_struct(k);
@@ -194,7 +195,7 @@
wait_for_completion(&kthread_stop_info.done);
kthread_stop_info.k = NULL;
ret = kthread_stop_info.err;
- up(&kthread_stop_lock);
+ mutex_unlock(&kthread_stop_lock);
return ret;
}
diff --git a/kernel/module.c b/kernel/module.c
index 77764f2..fb40429 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -39,6 +39,7 @@
#include <linux/device.h>
#include <linux/string.h>
#include <linux/sched.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <asm/cacheflush.h>
@@ -60,18 +61,18 @@
static DEFINE_SPINLOCK(modlist_lock);
/* List of modules, protected by module_mutex AND modlist_lock */
-static DECLARE_MUTEX(module_mutex);
+static DEFINE_MUTEX(module_mutex);
static LIST_HEAD(modules);
-static DECLARE_MUTEX(notify_mutex);
+static DEFINE_MUTEX(notify_mutex);
static struct notifier_block * module_notify_list;
int register_module_notifier(struct notifier_block * nb)
{
int err;
- down(¬ify_mutex);
+ mutex_lock(¬ify_mutex);
err = notifier_chain_register(&module_notify_list, nb);
- up(¬ify_mutex);
+ mutex_unlock(¬ify_mutex);
return err;
}
EXPORT_SYMBOL(register_module_notifier);
@@ -79,9 +80,9 @@
int unregister_module_notifier(struct notifier_block * nb)
{
int err;
- down(¬ify_mutex);
+ mutex_lock(¬ify_mutex);
err = notifier_chain_unregister(&module_notify_list, nb);
- up(¬ify_mutex);
+ mutex_unlock(¬ify_mutex);
return err;
}
EXPORT_SYMBOL(unregister_module_notifier);
@@ -601,7 +602,7 @@
static void wait_for_zero_refcount(struct module *mod)
{
/* Since we might sleep for some time, drop the semaphore first */
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
for (;;) {
DEBUGP("Looking at refcount...\n");
set_current_state(TASK_UNINTERRUPTIBLE);
@@ -610,7 +611,7 @@
schedule();
}
current->state = TASK_RUNNING;
- down(&module_mutex);
+ mutex_lock(&module_mutex);
}
asmlinkage long
@@ -627,7 +628,7 @@
return -EFAULT;
name[MODULE_NAME_LEN-1] = '\0';
- if (down_interruptible(&module_mutex) != 0)
+ if (mutex_lock_interruptible(&module_mutex) != 0)
return -EINTR;
mod = find_module(name);
@@ -676,14 +677,14 @@
/* Final destruction now noone is using it. */
if (mod->exit != NULL) {
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
mod->exit();
- down(&module_mutex);
+ mutex_lock(&module_mutex);
}
free_module(mod);
out:
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
return ret;
}
@@ -1972,13 +1973,13 @@
return -EPERM;
/* Only one module load at a time, please */
- if (down_interruptible(&module_mutex) != 0)
+ if (mutex_lock_interruptible(&module_mutex) != 0)
return -EINTR;
/* Do all the hard work */
mod = load_module(umod, len, uargs);
if (IS_ERR(mod)) {
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
return PTR_ERR(mod);
}
@@ -1987,11 +1988,11 @@
stop_machine_run(__link_module, mod, NR_CPUS);
/* Drop lock so they can recurse */
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
- down(¬ify_mutex);
+ mutex_lock(¬ify_mutex);
notifier_call_chain(&module_notify_list, MODULE_STATE_COMING, mod);
- up(¬ify_mutex);
+ mutex_unlock(¬ify_mutex);
/* Start the module */
if (mod->init != NULL)
@@ -2006,15 +2007,15 @@
mod->name);
else {
module_put(mod);
- down(&module_mutex);
+ mutex_lock(&module_mutex);
free_module(mod);
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
}
return ret;
}
/* Now it's a first class citizen! */
- down(&module_mutex);
+ mutex_lock(&module_mutex);
mod->state = MODULE_STATE_LIVE;
/* Drop initial reference. */
module_put(mod);
@@ -2022,7 +2023,7 @@
mod->module_init = NULL;
mod->init_size = 0;
mod->init_text_size = 0;
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
return 0;
}
@@ -2112,7 +2113,7 @@
{
struct module *mod;
- down(&module_mutex);
+ mutex_lock(&module_mutex);
list_for_each_entry(mod, &modules, list) {
if (symnum < mod->num_symtab) {
*value = mod->symtab[symnum].st_value;
@@ -2120,12 +2121,12 @@
strncpy(namebuf,
mod->strtab + mod->symtab[symnum].st_name,
127);
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
return mod;
}
symnum -= mod->num_symtab;
}
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
return NULL;
}
@@ -2168,7 +2169,7 @@
struct list_head *i;
loff_t n = 0;
- down(&module_mutex);
+ mutex_lock(&module_mutex);
list_for_each(i, &modules) {
if (n++ == *pos)
break;
@@ -2189,7 +2190,7 @@
static void m_stop(struct seq_file *m, void *p)
{
- up(&module_mutex);
+ mutex_unlock(&module_mutex);
}
static int m_show(struct seq_file *m, void *p)
diff --git a/kernel/panic.c b/kernel/panic.c
index 126dc43..acd95ad 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -20,10 +20,13 @@
#include <linux/nmi.h>
#include <linux/kexec.h>
-int panic_timeout;
int panic_on_oops;
int tainted;
+static int pause_on_oops;
+static int pause_on_oops_flag;
+static DEFINE_SPINLOCK(pause_on_oops_lock);
+int panic_timeout;
EXPORT_SYMBOL(panic_timeout);
struct notifier_block *panic_notifier_list;
@@ -174,3 +177,95 @@
tainted |= flag;
}
EXPORT_SYMBOL(add_taint);
+
+static int __init pause_on_oops_setup(char *str)
+{
+ pause_on_oops = simple_strtoul(str, NULL, 0);
+ return 1;
+}
+__setup("pause_on_oops=", pause_on_oops_setup);
+
+static void spin_msec(int msecs)
+{
+ int i;
+
+ for (i = 0; i < msecs; i++) {
+ touch_nmi_watchdog();
+ mdelay(1);
+ }
+}
+
+/*
+ * It just happens that oops_enter() and oops_exit() are identically
+ * implemented...
+ */
+static void do_oops_enter_exit(void)
+{
+ unsigned long flags;
+ static int spin_counter;
+
+ if (!pause_on_oops)
+ return;
+
+ spin_lock_irqsave(&pause_on_oops_lock, flags);
+ if (pause_on_oops_flag == 0) {
+ /* This CPU may now print the oops message */
+ pause_on_oops_flag = 1;
+ } else {
+ /* We need to stall this CPU */
+ if (!spin_counter) {
+ /* This CPU gets to do the counting */
+ spin_counter = pause_on_oops;
+ do {
+ spin_unlock(&pause_on_oops_lock);
+ spin_msec(MSEC_PER_SEC);
+ spin_lock(&pause_on_oops_lock);
+ } while (--spin_counter);
+ pause_on_oops_flag = 0;
+ } else {
+ /* This CPU waits for a different one */
+ while (spin_counter) {
+ spin_unlock(&pause_on_oops_lock);
+ spin_msec(1);
+ spin_lock(&pause_on_oops_lock);
+ }
+ }
+ }
+ spin_unlock_irqrestore(&pause_on_oops_lock, flags);
+}
+
+/*
+ * Return true if the calling CPU is allowed to print oops-related info. This
+ * is a bit racy..
+ */
+int oops_may_print(void)
+{
+ return pause_on_oops_flag == 0;
+}
+
+/*
+ * Called when the architecture enters its oops handler, before it prints
+ * anything. If this is the first CPU to oops, and it's oopsing the first time
+ * then let it proceed.
+ *
+ * This is all enabled by the pause_on_oops kernel boot option. We do all this
+ * to ensure that oopses don't scroll off the screen. It has the side-effect
+ * of preventing later-oopsing CPUs from mucking up the display, too.
+ *
+ * It turns out that the CPU which is allowed to print ends up pausing for the
+ * right duration, whereas all the other CPUs pause for twice as long: once in
+ * oops_enter(), once in oops_exit().
+ */
+void oops_enter(void)
+{
+ do_oops_enter_exit();
+}
+
+/*
+ * Called when the architecture exits its oops handler, after printing
+ * everything.
+ */
+void oops_exit(void)
+{
+ do_oops_enter_exit();
+}
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index fa895fc..9944379 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -35,6 +35,7 @@
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 04be7d0..8d0af3d 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -5,7 +5,7 @@
obj-y := main.o process.o console.o
obj-$(CONFIG_PM_LEGACY) += pm.o
-obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o disk.o snapshot.o
+obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o disk.o snapshot.o swap.o user.o
obj-$(CONFIG_SUSPEND_SMP) += smp.o
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 0b43847..81d4d98 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -22,17 +22,6 @@
#include "power.h"
-extern suspend_disk_method_t pm_disk_mode;
-
-extern int swsusp_shrink_memory(void);
-extern int swsusp_suspend(void);
-extern int swsusp_write(struct pbe *pblist, unsigned int nr_pages);
-extern int swsusp_check(void);
-extern int swsusp_read(struct pbe **pblist_ptr);
-extern void swsusp_close(void);
-extern int swsusp_resume(void);
-
-
static int noresume = 0;
char resume_file[256] = CONFIG_PM_STD_PARTITION;
dev_t swsusp_resume_device;
@@ -70,10 +59,6 @@
while(1);
}
-
-static int in_suspend __nosavedata = 0;
-
-
static inline void platform_finish(void)
{
if (pm_disk_mode == PM_DISK_PLATFORM) {
@@ -87,7 +72,6 @@
int error;
pm_prepare_console();
- sys_sync();
disable_nonboot_cpus();
if (freeze_processes()) {
@@ -145,7 +129,7 @@
if (in_suspend) {
device_resume();
pr_debug("PM: writing image.\n");
- error = swsusp_write(pagedir_nosave, nr_copy_pages);
+ error = swsusp_write();
if (!error)
power_down(pm_disk_mode);
else {
@@ -216,7 +200,7 @@
pr_debug("PM: Reading swsusp image.\n");
- if ((error = swsusp_read(&pagedir_nosave))) {
+ if ((error = swsusp_read())) {
swsusp_free();
goto Thaw;
}
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 9cb235c..ee371f5 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -103,7 +103,7 @@
}
-static int suspend_enter(suspend_state_t state)
+int suspend_enter(suspend_state_t state)
{
int error = 0;
unsigned long flags;
diff --git a/kernel/power/pm.c b/kernel/power/pm.c
index 33c508e..0f6908c 100644
--- a/kernel/power/pm.c
+++ b/kernel/power/pm.c
@@ -25,6 +25,7 @@
#include <linux/pm.h>
#include <linux/pm_legacy.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
int pm_active;
@@ -40,7 +41,7 @@
* until a resume but that will be fine.
*/
-static DECLARE_MUTEX(pm_devs_lock);
+static DEFINE_MUTEX(pm_devs_lock);
static LIST_HEAD(pm_devs);
/**
@@ -67,9 +68,9 @@
dev->id = id;
dev->callback = callback;
- down(&pm_devs_lock);
+ mutex_lock(&pm_devs_lock);
list_add(&dev->entry, &pm_devs);
- up(&pm_devs_lock);
+ mutex_unlock(&pm_devs_lock);
}
return dev;
}
@@ -85,9 +86,9 @@
void pm_unregister(struct pm_dev *dev)
{
if (dev) {
- down(&pm_devs_lock);
+ mutex_lock(&pm_devs_lock);
list_del(&dev->entry);
- up(&pm_devs_lock);
+ mutex_unlock(&pm_devs_lock);
kfree(dev);
}
@@ -118,7 +119,7 @@
if (!callback)
return;
- down(&pm_devs_lock);
+ mutex_lock(&pm_devs_lock);
entry = pm_devs.next;
while (entry != &pm_devs) {
struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
@@ -126,7 +127,7 @@
if (dev->callback == callback)
__pm_unregister(dev);
}
- up(&pm_devs_lock);
+ mutex_unlock(&pm_devs_lock);
}
/**
@@ -234,7 +235,7 @@
{
struct list_head *entry;
- down(&pm_devs_lock);
+ mutex_lock(&pm_devs_lock);
entry = pm_devs.next;
while (entry != &pm_devs) {
struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
@@ -246,13 +247,13 @@
*/
if (rqst == PM_SUSPEND)
pm_undo_all(dev);
- up(&pm_devs_lock);
+ mutex_unlock(&pm_devs_lock);
return status;
}
}
entry = entry->next;
}
- up(&pm_devs_lock);
+ mutex_unlock(&pm_devs_lock);
return 0;
}
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 388dba6..f06f12f 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -8,6 +8,7 @@
int cpus;
unsigned long image_pages;
unsigned long pages;
+ unsigned long size;
} __attribute__((aligned(PAGE_SIZE)));
@@ -37,21 +38,79 @@
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
-extern unsigned int nr_copy_pages;
extern struct pbe *pagedir_nosave;
/* Preferred image size in bytes (default 500 MB) */
extern unsigned long image_size;
+extern int in_suspend;
+extern dev_t swsusp_resume_device;
extern asmlinkage int swsusp_arch_suspend(void);
extern asmlinkage int swsusp_arch_resume(void);
extern unsigned int count_data_pages(void);
-extern void free_pagedir(struct pbe *pblist);
-extern void release_eaten_pages(void);
-extern struct pbe *alloc_pagedir(unsigned nr_pages, gfp_t gfp_mask, int safe_needed);
+
+struct snapshot_handle {
+ loff_t offset;
+ unsigned int page;
+ unsigned int page_offset;
+ unsigned int prev;
+ struct pbe *pbe;
+ void *buffer;
+ unsigned int buf_offset;
+};
+
+#define data_of(handle) ((handle).buffer + (handle).buf_offset)
+
+extern int snapshot_read_next(struct snapshot_handle *handle, size_t count);
+extern int snapshot_write_next(struct snapshot_handle *handle, size_t count);
+int snapshot_image_loaded(struct snapshot_handle *handle);
+
+#define SNAPSHOT_IOC_MAGIC '3'
+#define SNAPSHOT_FREEZE _IO(SNAPSHOT_IOC_MAGIC, 1)
+#define SNAPSHOT_UNFREEZE _IO(SNAPSHOT_IOC_MAGIC, 2)
+#define SNAPSHOT_ATOMIC_SNAPSHOT _IOW(SNAPSHOT_IOC_MAGIC, 3, void *)
+#define SNAPSHOT_ATOMIC_RESTORE _IO(SNAPSHOT_IOC_MAGIC, 4)
+#define SNAPSHOT_FREE _IO(SNAPSHOT_IOC_MAGIC, 5)
+#define SNAPSHOT_SET_IMAGE_SIZE _IOW(SNAPSHOT_IOC_MAGIC, 6, unsigned long)
+#define SNAPSHOT_AVAIL_SWAP _IOR(SNAPSHOT_IOC_MAGIC, 7, void *)
+#define SNAPSHOT_GET_SWAP_PAGE _IOR(SNAPSHOT_IOC_MAGIC, 8, void *)
+#define SNAPSHOT_FREE_SWAP_PAGES _IO(SNAPSHOT_IOC_MAGIC, 9)
+#define SNAPSHOT_SET_SWAP_FILE _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int)
+#define SNAPSHOT_S2RAM _IO(SNAPSHOT_IOC_MAGIC, 11)
+#define SNAPSHOT_IOC_MAXNR 11
+
+/**
+ * The bitmap is used for tracing allocated swap pages
+ *
+ * The entire bitmap consists of a number of bitmap_page
+ * structures linked with the help of the .next member.
+ * Thus each page can be allocated individually, so we only
+ * need to make 0-order memory allocations to create
+ * the bitmap.
+ */
+
+#define BITMAP_PAGE_SIZE (PAGE_SIZE - sizeof(void *))
+#define BITMAP_PAGE_CHUNKS (BITMAP_PAGE_SIZE / sizeof(long))
+#define BITS_PER_CHUNK (sizeof(long) * 8)
+#define BITMAP_PAGE_BITS (BITMAP_PAGE_CHUNKS * BITS_PER_CHUNK)
+
+struct bitmap_page {
+ unsigned long chunks[BITMAP_PAGE_CHUNKS];
+ struct bitmap_page *next;
+};
+
+extern void free_bitmap(struct bitmap_page *bitmap);
+extern struct bitmap_page *alloc_bitmap(unsigned int nr_bits);
+extern unsigned long alloc_swap_page(int swap, struct bitmap_page *bitmap);
+extern void free_all_swap_pages(int swap, struct bitmap_page *bitmap);
+
+extern int swsusp_check(void);
+extern int swsusp_shrink_memory(void);
extern void swsusp_free(void);
-extern int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed);
-extern unsigned int snapshot_nr_pages(void);
-extern struct pbe *snapshot_pblist(void);
-extern void snapshot_pblist_set(struct pbe *pblist);
+extern int swsusp_suspend(void);
+extern int swsusp_resume(void);
+extern int swsusp_read(void);
+extern int swsusp_write(void);
+extern void swsusp_close(void);
+extern int suspend_enter(suspend_state_t state);
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 28de118..8ac7c35f 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -12,11 +12,12 @@
#include <linux/interrupt.h>
#include <linux/suspend.h>
#include <linux/module.h>
+#include <linux/syscalls.h>
/*
* Timeout for stopping processes
*/
-#define TIMEOUT (6 * HZ)
+#define TIMEOUT (20 * HZ)
static inline int freezeable(struct task_struct * p)
@@ -54,38 +55,62 @@
current->state = save;
}
+static inline void freeze_process(struct task_struct *p)
+{
+ unsigned long flags;
+
+ if (!freezing(p)) {
+ freeze(p);
+ spin_lock_irqsave(&p->sighand->siglock, flags);
+ signal_wake_up(p, 0);
+ spin_unlock_irqrestore(&p->sighand->siglock, flags);
+ }
+}
+
/* 0 = success, else # of processes that we failed to stop */
int freeze_processes(void)
{
- int todo;
+ int todo, nr_user, user_frozen;
unsigned long start_time;
struct task_struct *g, *p;
unsigned long flags;
printk( "Stopping tasks: " );
start_time = jiffies;
+ user_frozen = 0;
do {
- todo = 0;
+ nr_user = todo = 0;
read_lock(&tasklist_lock);
do_each_thread(g, p) {
if (!freezeable(p))
continue;
if (frozen(p))
continue;
-
- freeze(p);
- spin_lock_irqsave(&p->sighand->siglock, flags);
- signal_wake_up(p, 0);
- spin_unlock_irqrestore(&p->sighand->siglock, flags);
- todo++;
+ if (p->mm && !(p->flags & PF_BORROWED_MM)) {
+ /* The task is a user-space one.
+ * Freeze it unless there's a vfork completion
+ * pending
+ */
+ if (!p->vfork_done)
+ freeze_process(p);
+ nr_user++;
+ } else {
+ /* Freeze only if the user space is frozen */
+ if (user_frozen)
+ freeze_process(p);
+ todo++;
+ }
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
- yield(); /* Yield is okay here */
- if (todo && time_after(jiffies, start_time + TIMEOUT)) {
- printk( "\n" );
- printk(KERN_ERR " stopping tasks failed (%d tasks remaining)\n", todo );
- break;
+ todo += nr_user;
+ if (!user_frozen && !nr_user) {
+ sys_sync();
+ start_time = jiffies;
}
+ user_frozen = !nr_user;
+ yield(); /* Yield is okay here */
+ if (todo && time_after(jiffies, start_time + TIMEOUT))
+ break;
} while(todo);
/* This does not unfreeze processes that are already frozen
@@ -94,8 +119,14 @@
* but it cleans up leftover PF_FREEZE requests.
*/
if (todo) {
+ printk( "\n" );
+ printk(KERN_ERR " stopping tasks timed out "
+ "after %d seconds (%d tasks remaining):\n",
+ TIMEOUT / HZ, todo);
read_lock(&tasklist_lock);
- do_each_thread(g, p)
+ do_each_thread(g, p) {
+ if (freezeable(p) && !frozen(p))
+ printk(KERN_ERR " %s\n", p->comm);
if (freezing(p)) {
pr_debug(" clean up: %s\n", p->comm);
p->flags &= ~PF_FREEZE;
@@ -103,7 +134,7 @@
recalc_sigpending_tsk(p);
spin_unlock_irqrestore(&p->sighand->siglock, flags);
}
- while_each_thread(g, p);
+ } while_each_thread(g, p);
read_unlock(&tasklist_lock);
return todo;
}
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 8d5a598..c5863d0 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -10,6 +10,7 @@
*/
+#include <linux/version.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/suspend.h>
@@ -34,7 +35,9 @@
#include "power.h"
struct pbe *pagedir_nosave;
-unsigned int nr_copy_pages;
+static unsigned int nr_copy_pages;
+static unsigned int nr_meta_pages;
+static unsigned long *buffer;
#ifdef CONFIG_HIGHMEM
unsigned int count_highmem_pages(void)
@@ -80,7 +83,7 @@
void *kaddr;
unsigned long pfn = zone_pfn + zone->zone_start_pfn;
- if (!(pfn%1000))
+ if (!(pfn%10000))
printk(".");
if (!pfn_valid(pfn))
continue;
@@ -119,13 +122,15 @@
struct zone *zone;
int res = 0;
- pr_debug("swsusp: Saving Highmem\n");
+ pr_debug("swsusp: Saving Highmem");
+ drain_local_pages();
for_each_zone (zone) {
if (is_highmem(zone))
res = save_highmem_zone(zone);
if (res)
return res;
}
+ printk("\n");
return 0;
}
@@ -235,7 +240,7 @@
* free_pagedir - free pages allocated with alloc_pagedir()
*/
-void free_pagedir(struct pbe *pblist)
+static void free_pagedir(struct pbe *pblist)
{
struct pbe *pbe;
@@ -301,7 +306,7 @@
static struct eaten_page *eaten_pages = NULL;
-void release_eaten_pages(void)
+static void release_eaten_pages(void)
{
struct eaten_page *p, *q;
@@ -376,7 +381,6 @@
if (!nr_pages)
return NULL;
- pr_debug("alloc_pagedir(): nr_pages = %d\n", nr_pages);
pblist = alloc_image_page(gfp_mask, safe_needed);
/* FIXME: rewrite this ugly loop */
for (pbe = pblist, num = PBES_PER_PAGE; pbe && num < nr_pages;
@@ -388,7 +392,7 @@
free_pagedir(pblist);
pblist = NULL;
} else
- create_pbe_list(pblist, nr_pages);
+ create_pbe_list(pblist, nr_pages);
return pblist;
}
@@ -414,6 +418,10 @@
}
}
}
+ nr_copy_pages = 0;
+ nr_meta_pages = 0;
+ pagedir_nosave = NULL;
+ buffer = NULL;
}
@@ -437,7 +445,7 @@
(nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE);
}
-int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed)
+static int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed)
{
struct pbe *p;
@@ -504,7 +512,318 @@
*/
nr_copy_pages = nr_pages;
+ nr_meta_pages = (nr_pages * sizeof(long) + PAGE_SIZE - 1) >> PAGE_SHIFT;
printk("swsusp: critical section/: done (%d pages copied)\n", nr_pages);
return 0;
}
+
+static void init_header(struct swsusp_info *info)
+{
+ 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));
+ info->cpus = num_online_cpus();
+ info->image_pages = nr_copy_pages;
+ info->pages = nr_copy_pages + nr_meta_pages + 1;
+ info->size = info->pages;
+ info->size <<= PAGE_SHIFT;
+}
+
+/**
+ * pack_orig_addresses - the .orig_address fields of the PBEs from the
+ * list starting at @pbe are stored in the array @buf[] (1 page)
+ */
+
+static inline struct pbe *pack_orig_addresses(unsigned long *buf, struct pbe *pbe)
+{
+ int j;
+
+ for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) {
+ buf[j] = pbe->orig_address;
+ pbe = pbe->next;
+ }
+ if (!pbe)
+ for (; j < PAGE_SIZE / sizeof(long); j++)
+ buf[j] = 0;
+ return pbe;
+}
+
+/**
+ * snapshot_read_next - used for reading the system memory snapshot.
+ *
+ * On the first call to it @handle should point to a zeroed
+ * snapshot_handle structure. The structure gets updated and a pointer
+ * to it should be passed to this function every next time.
+ *
+ * The @count parameter should contain the number of bytes the caller
+ * wants to read from the snapshot. It must not be zero.
+ *
+ * On success the function returns a positive number. Then, the caller
+ * is allowed to read up to the returned number of bytes from the memory
+ * location computed by the data_of() macro. The number returned
+ * may be smaller than @count, but this only happens if the read would
+ * cross a page boundary otherwise.
+ *
+ * The function returns 0 to indicate the end of data stream condition,
+ * and a negative number is returned on error. In such cases the
+ * structure pointed to by @handle is not updated and should not be used
+ * any more.
+ */
+
+int snapshot_read_next(struct snapshot_handle *handle, size_t count)
+{
+ if (handle->page > nr_meta_pages + nr_copy_pages)
+ return 0;
+ if (!buffer) {
+ /* This makes the buffer be freed by swsusp_free() */
+ buffer = alloc_image_page(GFP_ATOMIC, 0);
+ if (!buffer)
+ return -ENOMEM;
+ }
+ if (!handle->offset) {
+ init_header((struct swsusp_info *)buffer);
+ handle->buffer = buffer;
+ handle->pbe = pagedir_nosave;
+ }
+ if (handle->prev < handle->page) {
+ if (handle->page <= nr_meta_pages) {
+ handle->pbe = pack_orig_addresses(buffer, handle->pbe);
+ if (!handle->pbe)
+ handle->pbe = pagedir_nosave;
+ } else {
+ handle->buffer = (void *)handle->pbe->address;
+ handle->pbe = handle->pbe->next;
+ }
+ handle->prev = handle->page;
+ }
+ handle->buf_offset = handle->page_offset;
+ if (handle->page_offset + count >= PAGE_SIZE) {
+ count = PAGE_SIZE - handle->page_offset;
+ handle->page_offset = 0;
+ handle->page++;
+ } else {
+ handle->page_offset += count;
+ }
+ handle->offset += count;
+ return count;
+}
+
+/**
+ * mark_unsafe_pages - mark the pages that cannot be used for storing
+ * the image during resume, because they conflict with the pages that
+ * had been used before suspend
+ */
+
+static int mark_unsafe_pages(struct pbe *pblist)
+{
+ struct zone *zone;
+ unsigned long zone_pfn;
+ struct pbe *p;
+
+ if (!pblist) /* a sanity check */
+ return -EINVAL;
+
+ /* Clear page flags */
+ for_each_zone (zone) {
+ for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
+ if (pfn_valid(zone_pfn + zone->zone_start_pfn))
+ ClearPageNosaveFree(pfn_to_page(zone_pfn +
+ zone->zone_start_pfn));
+ }
+
+ /* Mark orig addresses */
+ for_each_pbe (p, pblist) {
+ if (virt_addr_valid(p->orig_address))
+ SetPageNosaveFree(virt_to_page(p->orig_address));
+ else
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static void copy_page_backup_list(struct pbe *dst, struct pbe *src)
+{
+ /* We assume both lists contain the same number of elements */
+ while (src) {
+ dst->orig_address = src->orig_address;
+ dst = dst->next;
+ src = src->next;
+ }
+}
+
+static int check_header(struct swsusp_info *info)
+{
+ char *reason = NULL;
+
+ if (info->version_code != LINUX_VERSION_CODE)
+ reason = "kernel version";
+ if (info->num_physpages != num_physpages)
+ reason = "memory size";
+ if (strcmp(info->uts.sysname,system_utsname.sysname))
+ reason = "system type";
+ if (strcmp(info->uts.release,system_utsname.release))
+ reason = "kernel release";
+ if (strcmp(info->uts.version,system_utsname.version))
+ reason = "version";
+ if (strcmp(info->uts.machine,system_utsname.machine))
+ reason = "machine";
+ if (reason) {
+ printk(KERN_ERR "swsusp: Resume mismatch: %s\n", reason);
+ return -EPERM;
+ }
+ return 0;
+}
+
+/**
+ * load header - check the image header and copy data from it
+ */
+
+static int load_header(struct snapshot_handle *handle,
+ struct swsusp_info *info)
+{
+ int error;
+ struct pbe *pblist;
+
+ error = check_header(info);
+ if (!error) {
+ pblist = alloc_pagedir(info->image_pages, GFP_ATOMIC, 0);
+ if (!pblist)
+ return -ENOMEM;
+ pagedir_nosave = pblist;
+ handle->pbe = pblist;
+ nr_copy_pages = info->image_pages;
+ nr_meta_pages = info->pages - info->image_pages - 1;
+ }
+ return error;
+}
+
+/**
+ * unpack_orig_addresses - copy the elements of @buf[] (1 page) to
+ * the PBEs in the list starting at @pbe
+ */
+
+static inline struct pbe *unpack_orig_addresses(unsigned long *buf,
+ struct pbe *pbe)
+{
+ int j;
+
+ for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) {
+ pbe->orig_address = buf[j];
+ pbe = pbe->next;
+ }
+ return pbe;
+}
+
+/**
+ * create_image - use metadata contained in the PBE list
+ * pointed to by pagedir_nosave to mark the pages that will
+ * be overwritten in the process of restoring the system
+ * memory state from the image and allocate memory for
+ * the image avoiding these pages
+ */
+
+static int create_image(struct snapshot_handle *handle)
+{
+ int error = 0;
+ struct pbe *p, *pblist;
+
+ p = pagedir_nosave;
+ error = mark_unsafe_pages(p);
+ if (!error) {
+ pblist = alloc_pagedir(nr_copy_pages, GFP_ATOMIC, 1);
+ if (pblist)
+ copy_page_backup_list(pblist, p);
+ free_pagedir(p);
+ if (!pblist)
+ error = -ENOMEM;
+ }
+ if (!error)
+ error = alloc_data_pages(pblist, GFP_ATOMIC, 1);
+ if (!error) {
+ release_eaten_pages();
+ pagedir_nosave = pblist;
+ } else {
+ pagedir_nosave = NULL;
+ handle->pbe = NULL;
+ nr_copy_pages = 0;
+ nr_meta_pages = 0;
+ }
+ return error;
+}
+
+/**
+ * snapshot_write_next - used for writing the system memory snapshot.
+ *
+ * On the first call to it @handle should point to a zeroed
+ * snapshot_handle structure. The structure gets updated and a pointer
+ * to it should be passed to this function every next time.
+ *
+ * The @count parameter should contain the number of bytes the caller
+ * wants to write to the image. It must not be zero.
+ *
+ * On success the function returns a positive number. Then, the caller
+ * is allowed to write up to the returned number of bytes to the memory
+ * location computed by the data_of() macro. The number returned
+ * may be smaller than @count, but this only happens if the write would
+ * cross a page boundary otherwise.
+ *
+ * The function returns 0 to indicate the "end of file" condition,
+ * and a negative number is returned on error. In such cases the
+ * structure pointed to by @handle is not updated and should not be used
+ * any more.
+ */
+
+int snapshot_write_next(struct snapshot_handle *handle, size_t count)
+{
+ int error = 0;
+
+ if (handle->prev && handle->page > nr_meta_pages + nr_copy_pages)
+ return 0;
+ if (!buffer) {
+ /* This makes the buffer be freed by swsusp_free() */
+ buffer = alloc_image_page(GFP_ATOMIC, 0);
+ if (!buffer)
+ return -ENOMEM;
+ }
+ if (!handle->offset)
+ handle->buffer = buffer;
+ if (handle->prev < handle->page) {
+ if (!handle->prev) {
+ error = load_header(handle, (struct swsusp_info *)buffer);
+ if (error)
+ return error;
+ } else if (handle->prev <= nr_meta_pages) {
+ handle->pbe = unpack_orig_addresses(buffer, handle->pbe);
+ if (!handle->pbe) {
+ error = create_image(handle);
+ if (error)
+ return error;
+ handle->pbe = pagedir_nosave;
+ handle->buffer = (void *)handle->pbe->address;
+ }
+ } else {
+ handle->pbe = handle->pbe->next;
+ handle->buffer = (void *)handle->pbe->address;
+ }
+ handle->prev = handle->page;
+ }
+ handle->buf_offset = handle->page_offset;
+ if (handle->page_offset + count >= PAGE_SIZE) {
+ count = PAGE_SIZE - handle->page_offset;
+ handle->page_offset = 0;
+ handle->page++;
+ } else {
+ handle->page_offset += count;
+ }
+ handle->offset += count;
+ return count;
+}
+
+int snapshot_image_loaded(struct snapshot_handle *handle)
+{
+ return !(!handle->pbe || handle->pbe->next || !nr_copy_pages ||
+ handle->page <= nr_meta_pages + nr_copy_pages);
+}
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
new file mode 100644
index 0000000..9177f3f
--- /dev/null
+++ b/kernel/power/swap.c
@@ -0,0 +1,544 @@
+/*
+ * linux/kernel/power/swap.c
+ *
+ * This file provides functions for reading the suspend image from
+ * and writing it to a swap partition.
+ *
+ * Copyright (C) 1998,2001-2005 Pavel Machek <pavel@suse.cz>
+ * Copyright (C) 2006 Rafael J. Wysocki <rjw@sisk.pl>
+ *
+ * This file is released under the GPLv2.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/smp_lock.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/version.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/genhd.h>
+#include <linux/device.h>
+#include <linux/buffer_head.h>
+#include <linux/bio.h>
+#include <linux/swap.h>
+#include <linux/swapops.h>
+#include <linux/pm.h>
+
+#include "power.h"
+
+extern char resume_file[];
+
+#define SWSUSP_SIG "S1SUSPEND"
+
+static struct swsusp_header {
+ char reserved[PAGE_SIZE - 20 - sizeof(swp_entry_t)];
+ swp_entry_t image;
+ char orig_sig[10];
+ char sig[10];
+} __attribute__((packed, aligned(PAGE_SIZE))) swsusp_header;
+
+/*
+ * Saving part...
+ */
+
+static unsigned short root_swap = 0xffff;
+
+static int mark_swapfiles(swp_entry_t start)
+{
+ int error;
+
+ rw_swap_page_sync(READ,
+ swp_entry(root_swap, 0),
+ virt_to_page((unsigned long)&swsusp_header));
+ if (!memcmp("SWAP-SPACE",swsusp_header.sig, 10) ||
+ !memcmp("SWAPSPACE2",swsusp_header.sig, 10)) {
+ memcpy(swsusp_header.orig_sig,swsusp_header.sig, 10);
+ memcpy(swsusp_header.sig,SWSUSP_SIG, 10);
+ swsusp_header.image = start;
+ error = rw_swap_page_sync(WRITE,
+ swp_entry(root_swap, 0),
+ virt_to_page((unsigned long)
+ &swsusp_header));
+ } else {
+ pr_debug("swsusp: Partition is not swap space.\n");
+ error = -ENODEV;
+ }
+ return error;
+}
+
+/**
+ * swsusp_swap_check - check if the resume device is a swap device
+ * and get its index (if so)
+ */
+
+static int swsusp_swap_check(void) /* This is called before saving image */
+{
+ int res = swap_type_of(swsusp_resume_device);
+
+ if (res >= 0) {
+ root_swap = res;
+ return 0;
+ }
+ return res;
+}
+
+/**
+ * write_page - Write one page to given swap location.
+ * @buf: Address we're writing.
+ * @offset: Offset of the swap page we're writing to.
+ */
+
+static int write_page(void *buf, unsigned long offset)
+{
+ swp_entry_t entry;
+ int error = -ENOSPC;
+
+ if (offset) {
+ entry = swp_entry(root_swap, offset);
+ error = rw_swap_page_sync(WRITE, entry, virt_to_page(buf));
+ }
+ return error;
+}
+
+/*
+ * The swap map is a data structure used for keeping track of each page
+ * written to a swap partition. It consists of many swap_map_page
+ * structures that contain each an array of MAP_PAGE_SIZE swap entries.
+ * These structures are stored on the swap and linked together with the
+ * help of the .next_swap member.
+ *
+ * The swap map is created during suspend. The swap map pages are
+ * allocated and populated one at a time, so we only need one memory
+ * page to set up the entire structure.
+ *
+ * During resume we also only need to use one swap_map_page structure
+ * at a time.
+ */
+
+#define MAP_PAGE_ENTRIES (PAGE_SIZE / sizeof(long) - 1)
+
+struct swap_map_page {
+ unsigned long entries[MAP_PAGE_ENTRIES];
+ unsigned long next_swap;
+};
+
+/**
+ * The swap_map_handle structure is used for handling swap in
+ * a file-alike way
+ */
+
+struct swap_map_handle {
+ struct swap_map_page *cur;
+ unsigned long cur_swap;
+ struct bitmap_page *bitmap;
+ unsigned int k;
+};
+
+static void release_swap_writer(struct swap_map_handle *handle)
+{
+ if (handle->cur)
+ free_page((unsigned long)handle->cur);
+ handle->cur = NULL;
+ if (handle->bitmap)
+ free_bitmap(handle->bitmap);
+ handle->bitmap = NULL;
+}
+
+static int get_swap_writer(struct swap_map_handle *handle)
+{
+ handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_KERNEL);
+ if (!handle->cur)
+ return -ENOMEM;
+ handle->bitmap = alloc_bitmap(count_swap_pages(root_swap, 0));
+ if (!handle->bitmap) {
+ release_swap_writer(handle);
+ return -ENOMEM;
+ }
+ handle->cur_swap = alloc_swap_page(root_swap, handle->bitmap);
+ if (!handle->cur_swap) {
+ release_swap_writer(handle);
+ return -ENOSPC;
+ }
+ handle->k = 0;
+ return 0;
+}
+
+static int swap_write_page(struct swap_map_handle *handle, void *buf)
+{
+ int error;
+ unsigned long offset;
+
+ if (!handle->cur)
+ return -EINVAL;
+ offset = alloc_swap_page(root_swap, handle->bitmap);
+ error = write_page(buf, offset);
+ if (error)
+ return error;
+ handle->cur->entries[handle->k++] = offset;
+ if (handle->k >= MAP_PAGE_ENTRIES) {
+ offset = alloc_swap_page(root_swap, handle->bitmap);
+ if (!offset)
+ return -ENOSPC;
+ handle->cur->next_swap = offset;
+ error = write_page(handle->cur, handle->cur_swap);
+ if (error)
+ return error;
+ memset(handle->cur, 0, PAGE_SIZE);
+ handle->cur_swap = offset;
+ handle->k = 0;
+ }
+ return 0;
+}
+
+static int flush_swap_writer(struct swap_map_handle *handle)
+{
+ if (handle->cur && handle->cur_swap)
+ return write_page(handle->cur, handle->cur_swap);
+ else
+ return -EINVAL;
+}
+
+/**
+ * save_image - save the suspend image data
+ */
+
+static int save_image(struct swap_map_handle *handle,
+ struct snapshot_handle *snapshot,
+ unsigned int nr_pages)
+{
+ unsigned int m;
+ int ret;
+ int error = 0;
+
+ printk("Saving image data pages (%u pages) ... ", nr_pages);
+ m = nr_pages / 100;
+ if (!m)
+ m = 1;
+ nr_pages = 0;
+ do {
+ ret = snapshot_read_next(snapshot, PAGE_SIZE);
+ if (ret > 0) {
+ error = swap_write_page(handle, data_of(*snapshot));
+ if (error)
+ break;
+ if (!(nr_pages % m))
+ printk("\b\b\b\b%3d%%", nr_pages / m);
+ nr_pages++;
+ }
+ } while (ret > 0);
+ if (!error)
+ printk("\b\b\b\bdone\n");
+ return error;
+}
+
+/**
+ * enough_swap - Make sure we have enough swap to save the image.
+ *
+ * Returns TRUE or FALSE after checking the total amount of swap
+ * space avaiable from the resume partition.
+ */
+
+static int enough_swap(unsigned int nr_pages)
+{
+ unsigned int free_swap = count_swap_pages(root_swap, 1);
+
+ pr_debug("swsusp: free swap pages: %u\n", free_swap);
+ return free_swap > (nr_pages + PAGES_FOR_IO +
+ (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE);
+}
+
+/**
+ * swsusp_write - Write entire image and metadata.
+ *
+ * It is important _NOT_ to umount filesystems at this point. We want
+ * them synced (in case something goes wrong) but we DO not want to mark
+ * filesystem clean: it is not. (And it does not matter, if we resume
+ * correctly, we'll mark system clean, anyway.)
+ */
+
+int swsusp_write(void)
+{
+ struct swap_map_handle handle;
+ struct snapshot_handle snapshot;
+ struct swsusp_info *header;
+ unsigned long start;
+ int error;
+
+ if ((error = swsusp_swap_check())) {
+ printk(KERN_ERR "swsusp: Cannot find swap device, try swapon -a.\n");
+ return error;
+ }
+ memset(&snapshot, 0, sizeof(struct snapshot_handle));
+ error = snapshot_read_next(&snapshot, PAGE_SIZE);
+ if (error < PAGE_SIZE)
+ return error < 0 ? error : -EFAULT;
+ header = (struct swsusp_info *)data_of(snapshot);
+ if (!enough_swap(header->pages)) {
+ printk(KERN_ERR "swsusp: Not enough free swap\n");
+ return -ENOSPC;
+ }
+ error = get_swap_writer(&handle);
+ if (!error) {
+ start = handle.cur_swap;
+ error = swap_write_page(&handle, header);
+ }
+ if (!error)
+ error = save_image(&handle, &snapshot, header->pages - 1);
+ if (!error) {
+ flush_swap_writer(&handle);
+ printk("S");
+ error = mark_swapfiles(swp_entry(root_swap, start));
+ printk("|\n");
+ }
+ if (error)
+ free_all_swap_pages(root_swap, handle.bitmap);
+ release_swap_writer(&handle);
+ return error;
+}
+
+/*
+ * Using bio to read from swap.
+ * This code requires a bit more work than just using buffer heads
+ * but, it is the recommended way for 2.5/2.6.
+ * The following are to signal the beginning and end of I/O. Bios
+ * finish asynchronously, while we want them to happen synchronously.
+ * A simple atomic_t, and a wait loop take care of this problem.
+ */
+
+static atomic_t io_done = ATOMIC_INIT(0);
+
+static int end_io(struct bio *bio, unsigned int num, int err)
+{
+ if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+ panic("I/O error reading memory image");
+ atomic_set(&io_done, 0);
+ return 0;
+}
+
+static struct block_device *resume_bdev;
+
+/**
+ * submit - submit BIO request.
+ * @rw: READ or WRITE.
+ * @off physical offset of page.
+ * @page: page we're reading or writing.
+ *
+ * Straight from the textbook - allocate and initialize the bio.
+ * If we're writing, make sure the page is marked as dirty.
+ * Then submit it and wait.
+ */
+
+static int submit(int rw, pgoff_t page_off, void *page)
+{
+ int error = 0;
+ struct bio *bio;
+
+ bio = bio_alloc(GFP_ATOMIC, 1);
+ if (!bio)
+ return -ENOMEM;
+ bio->bi_sector = page_off * (PAGE_SIZE >> 9);
+ bio->bi_bdev = resume_bdev;
+ bio->bi_end_io = end_io;
+
+ if (bio_add_page(bio, virt_to_page(page), PAGE_SIZE, 0) < PAGE_SIZE) {
+ printk("swsusp: ERROR: adding page to bio at %ld\n",page_off);
+ error = -EFAULT;
+ goto Done;
+ }
+
+ atomic_set(&io_done, 1);
+ submit_bio(rw | (1 << BIO_RW_SYNC), bio);
+ while (atomic_read(&io_done))
+ yield();
+ if (rw == READ)
+ bio_set_pages_dirty(bio);
+ Done:
+ bio_put(bio);
+ return error;
+}
+
+static int bio_read_page(pgoff_t page_off, void *page)
+{
+ return submit(READ, page_off, page);
+}
+
+static int bio_write_page(pgoff_t page_off, void *page)
+{
+ return submit(WRITE, page_off, page);
+}
+
+/**
+ * The following functions allow us to read data using a swap map
+ * in a file-alike way
+ */
+
+static void release_swap_reader(struct swap_map_handle *handle)
+{
+ if (handle->cur)
+ free_page((unsigned long)handle->cur);
+ handle->cur = NULL;
+}
+
+static int get_swap_reader(struct swap_map_handle *handle,
+ swp_entry_t start)
+{
+ int error;
+
+ if (!swp_offset(start))
+ return -EINVAL;
+ handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_ATOMIC);
+ if (!handle->cur)
+ return -ENOMEM;
+ error = bio_read_page(swp_offset(start), handle->cur);
+ if (error) {
+ release_swap_reader(handle);
+ return error;
+ }
+ handle->k = 0;
+ return 0;
+}
+
+static int swap_read_page(struct swap_map_handle *handle, void *buf)
+{
+ unsigned long offset;
+ int error;
+
+ if (!handle->cur)
+ return -EINVAL;
+ offset = handle->cur->entries[handle->k];
+ if (!offset)
+ return -EFAULT;
+ error = bio_read_page(offset, buf);
+ if (error)
+ return error;
+ if (++handle->k >= MAP_PAGE_ENTRIES) {
+ handle->k = 0;
+ offset = handle->cur->next_swap;
+ if (!offset)
+ release_swap_reader(handle);
+ else
+ error = bio_read_page(offset, handle->cur);
+ }
+ return error;
+}
+
+/**
+ * load_image - load the image using the swap map handle
+ * @handle and the snapshot handle @snapshot
+ * (assume there are @nr_pages pages to load)
+ */
+
+static int load_image(struct swap_map_handle *handle,
+ struct snapshot_handle *snapshot,
+ unsigned int nr_pages)
+{
+ unsigned int m;
+ int ret;
+ int error = 0;
+
+ printk("Loading image data pages (%u pages) ... ", nr_pages);
+ m = nr_pages / 100;
+ if (!m)
+ m = 1;
+ nr_pages = 0;
+ do {
+ ret = snapshot_write_next(snapshot, PAGE_SIZE);
+ if (ret > 0) {
+ error = swap_read_page(handle, data_of(*snapshot));
+ if (error)
+ break;
+ if (!(nr_pages % m))
+ printk("\b\b\b\b%3d%%", nr_pages / m);
+ nr_pages++;
+ }
+ } while (ret > 0);
+ if (!error)
+ printk("\b\b\b\bdone\n");
+ if (!snapshot_image_loaded(snapshot))
+ error = -ENODATA;
+ return error;
+}
+
+int swsusp_read(void)
+{
+ int error;
+ struct swap_map_handle handle;
+ struct snapshot_handle snapshot;
+ struct swsusp_info *header;
+
+ if (IS_ERR(resume_bdev)) {
+ pr_debug("swsusp: block device not initialised\n");
+ return PTR_ERR(resume_bdev);
+ }
+
+ memset(&snapshot, 0, sizeof(struct snapshot_handle));
+ error = snapshot_write_next(&snapshot, PAGE_SIZE);
+ if (error < PAGE_SIZE)
+ return error < 0 ? error : -EFAULT;
+ header = (struct swsusp_info *)data_of(snapshot);
+ error = get_swap_reader(&handle, swsusp_header.image);
+ if (!error)
+ error = swap_read_page(&handle, header);
+ if (!error)
+ error = load_image(&handle, &snapshot, header->pages - 1);
+ release_swap_reader(&handle);
+
+ blkdev_put(resume_bdev);
+
+ if (!error)
+ pr_debug("swsusp: Reading resume file was successful\n");
+ else
+ pr_debug("swsusp: Error %d resuming\n", error);
+ return error;
+}
+
+/**
+ * swsusp_check - Check for swsusp signature in the resume device
+ */
+
+int swsusp_check(void)
+{
+ int error;
+
+ resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ);
+ if (!IS_ERR(resume_bdev)) {
+ set_blocksize(resume_bdev, PAGE_SIZE);
+ memset(&swsusp_header, 0, sizeof(swsusp_header));
+ if ((error = bio_read_page(0, &swsusp_header)))
+ return error;
+ if (!memcmp(SWSUSP_SIG, swsusp_header.sig, 10)) {
+ memcpy(swsusp_header.sig, swsusp_header.orig_sig, 10);
+ /* Reset swap signature now */
+ error = bio_write_page(0, &swsusp_header);
+ } else {
+ return -EINVAL;
+ }
+ if (error)
+ blkdev_put(resume_bdev);
+ else
+ pr_debug("swsusp: Signature found, resuming\n");
+ } else {
+ error = PTR_ERR(resume_bdev);
+ }
+
+ if (error)
+ pr_debug("swsusp: Error %d check for resume file\n", error);
+
+ return error;
+}
+
+/**
+ * swsusp_close - close swap device.
+ */
+
+void swsusp_close(void)
+{
+ if (IS_ERR(resume_bdev)) {
+ pr_debug("swsusp: block device not initialised\n");
+ return;
+ }
+
+ blkdev_put(resume_bdev);
+}
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 2d9d08f..c4016cb 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -31,41 +31,24 @@
* Fixed runaway init
*
* Rafael J. Wysocki <rjw@sisk.pl>
- * Added the swap map data structure and reworked the handling of swap
+ * Reworked the freeing of memory and the handling of swap
*
* More state savers are welcome. Especially for the scsi layer...
*
* For TODOs,FIXMEs also look in Documentation/power/swsusp.txt
*/
-#include <linux/module.h>
#include <linux/mm.h>
#include <linux/suspend.h>
-#include <linux/smp_lock.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-#include <linux/version.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
#include <linux/spinlock.h>
-#include <linux/genhd.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/swap.h>
#include <linux/pm.h>
-#include <linux/device.h>
-#include <linux/buffer_head.h>
#include <linux/swapops.h>
#include <linux/bootmem.h>
#include <linux/syscalls.h>
#include <linux/highmem.h>
-#include <linux/bio.h>
-
-#include <asm/uaccess.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-#include <asm/io.h>
#include "power.h"
@@ -77,6 +60,8 @@
*/
unsigned long image_size = 500 * 1024 * 1024;
+int in_suspend __nosavedata = 0;
+
#ifdef CONFIG_HIGHMEM
unsigned int count_highmem_pages(void);
int save_highmem(void);
@@ -87,471 +72,97 @@
static unsigned int count_highmem_pages(void) { return 0; }
#endif
-extern char resume_file[];
-
-#define SWSUSP_SIG "S1SUSPEND"
-
-static struct swsusp_header {
- char reserved[PAGE_SIZE - 20 - sizeof(swp_entry_t)];
- swp_entry_t image;
- char orig_sig[10];
- char sig[10];
-} __attribute__((packed, aligned(PAGE_SIZE))) swsusp_header;
-
-static struct swsusp_info swsusp_info;
-
-/*
- * Saving part...
- */
-
-static unsigned short root_swap = 0xffff;
-
-static int mark_swapfiles(swp_entry_t start)
-{
- int error;
-
- rw_swap_page_sync(READ,
- swp_entry(root_swap, 0),
- virt_to_page((unsigned long)&swsusp_header));
- if (!memcmp("SWAP-SPACE",swsusp_header.sig, 10) ||
- !memcmp("SWAPSPACE2",swsusp_header.sig, 10)) {
- memcpy(swsusp_header.orig_sig,swsusp_header.sig, 10);
- memcpy(swsusp_header.sig,SWSUSP_SIG, 10);
- swsusp_header.image = start;
- error = rw_swap_page_sync(WRITE,
- swp_entry(root_swap, 0),
- virt_to_page((unsigned long)
- &swsusp_header));
- } else {
- pr_debug("swsusp: Partition is not swap space.\n");
- error = -ENODEV;
- }
- return error;
-}
-
-/*
- * Check whether the swap device is the specified resume
- * device, irrespective of whether they are specified by
- * identical names.
- *
- * (Thus, device inode aliasing is allowed. You can say /dev/hda4
- * instead of /dev/ide/host0/bus0/target0/lun0/part4 [if using devfs]
- * and they'll be considered the same device. This is *necessary* for
- * devfs, since the resume code can only recognize the form /dev/hda4,
- * but the suspend code would see the long name.)
- */
-static inline int is_resume_device(const struct swap_info_struct *swap_info)
-{
- struct file *file = swap_info->swap_file;
- struct inode *inode = file->f_dentry->d_inode;
-
- return S_ISBLK(inode->i_mode) &&
- swsusp_resume_device == MKDEV(imajor(inode), iminor(inode));
-}
-
-static int swsusp_swap_check(void) /* This is called before saving image */
-{
- int i;
-
- spin_lock(&swap_lock);
- for (i = 0; i < MAX_SWAPFILES; i++) {
- if (!(swap_info[i].flags & SWP_WRITEOK))
- continue;
- if (!swsusp_resume_device || is_resume_device(swap_info + i)) {
- spin_unlock(&swap_lock);
- root_swap = i;
- return 0;
- }
- }
- spin_unlock(&swap_lock);
- return -ENODEV;
-}
-
/**
- * write_page - Write one page to a fresh swap location.
- * @addr: Address we're writing.
- * @loc: Place to store the entry we used.
+ * The following functions are used for tracing the allocated
+ * swap pages, so that they can be freed in case of an error.
*
- * Allocate a new swap entry and 'sync' it. Note we discard -EIO
- * errors. That is an artifact left over from swsusp. It did not
- * check the return of rw_swap_page_sync() at all, since most pages
- * written back to swap would return -EIO.
- * This is a partial improvement, since we will at least return other
- * errors, though we need to eventually fix the damn code.
- */
-static int write_page(unsigned long addr, swp_entry_t *loc)
-{
- swp_entry_t entry;
- int error = -ENOSPC;
-
- entry = get_swap_page_of_type(root_swap);
- if (swp_offset(entry)) {
- error = rw_swap_page_sync(WRITE, entry, virt_to_page(addr));
- if (!error || error == -EIO)
- *loc = entry;
- }
- return error;
-}
-
-/**
- * Swap map-handling functions
- *
- * The swap map is a data structure used for keeping track of each page
- * written to the swap. It consists of many swap_map_page structures
- * that contain each an array of MAP_PAGE_SIZE swap entries.
- * These structures are linked together with the help of either the
- * .next (in memory) or the .next_swap (in swap) member.
- *
- * The swap map is created during suspend. At that time we need to keep
- * it in memory, because we have to free all of the allocated swap
- * entries if an error occurs. The memory needed is preallocated
- * so that we know in advance if there's enough of it.
- *
- * The first swap_map_page structure is filled with the swap entries that
- * correspond to the first MAP_PAGE_SIZE data pages written to swap and
- * so on. After the all of the data pages have been written, the order
- * of the swap_map_page structures in the map is reversed so that they
- * can be read from swap in the original order. This causes the data
- * pages to be loaded in exactly the same order in which they have been
- * saved.
- *
- * During resume we only need to use one swap_map_page structure
- * at a time, which means that we only need to use two memory pages for
- * reading the image - one for reading the swap_map_page structures
- * and the second for reading the data pages from swap.
+ * The functions operate on a linked bitmap structure defined
+ * in power.h
*/
-#define MAP_PAGE_SIZE ((PAGE_SIZE - sizeof(swp_entry_t) - sizeof(void *)) \
- / sizeof(swp_entry_t))
-
-struct swap_map_page {
- swp_entry_t entries[MAP_PAGE_SIZE];
- swp_entry_t next_swap;
- struct swap_map_page *next;
-};
-
-static inline void free_swap_map(struct swap_map_page *swap_map)
+void free_bitmap(struct bitmap_page *bitmap)
{
- struct swap_map_page *swp;
+ struct bitmap_page *bp;
- while (swap_map) {
- swp = swap_map->next;
- free_page((unsigned long)swap_map);
- swap_map = swp;
+ while (bitmap) {
+ bp = bitmap->next;
+ free_page((unsigned long)bitmap);
+ bitmap = bp;
}
}
-static struct swap_map_page *alloc_swap_map(unsigned int nr_pages)
+struct bitmap_page *alloc_bitmap(unsigned int nr_bits)
{
- struct swap_map_page *swap_map, *swp;
- unsigned n = 0;
+ struct bitmap_page *bitmap, *bp;
+ unsigned int n;
- if (!nr_pages)
+ if (!nr_bits)
return NULL;
- pr_debug("alloc_swap_map(): nr_pages = %d\n", nr_pages);
- swap_map = (struct swap_map_page *)get_zeroed_page(GFP_ATOMIC);
- swp = swap_map;
- for (n = MAP_PAGE_SIZE; n < nr_pages; n += MAP_PAGE_SIZE) {
- swp->next = (struct swap_map_page *)get_zeroed_page(GFP_ATOMIC);
- swp = swp->next;
- if (!swp) {
- free_swap_map(swap_map);
+ bitmap = (struct bitmap_page *)get_zeroed_page(GFP_KERNEL);
+ bp = bitmap;
+ for (n = BITMAP_PAGE_BITS; n < nr_bits; n += BITMAP_PAGE_BITS) {
+ bp->next = (struct bitmap_page *)get_zeroed_page(GFP_KERNEL);
+ bp = bp->next;
+ if (!bp) {
+ free_bitmap(bitmap);
return NULL;
}
}
- return swap_map;
+ return bitmap;
}
-/**
- * reverse_swap_map - reverse the order of pages in the swap map
- * @swap_map
- */
-
-static inline struct swap_map_page *reverse_swap_map(struct swap_map_page *swap_map)
+static int bitmap_set(struct bitmap_page *bitmap, unsigned long bit)
{
- struct swap_map_page *prev, *next;
+ unsigned int n;
- prev = NULL;
- while (swap_map) {
- next = swap_map->next;
- swap_map->next = prev;
- prev = swap_map;
- swap_map = next;
+ n = BITMAP_PAGE_BITS;
+ while (bitmap && n <= bit) {
+ n += BITMAP_PAGE_BITS;
+ bitmap = bitmap->next;
}
- return prev;
-}
-
-/**
- * free_swap_map_entries - free the swap entries allocated to store
- * the swap map @swap_map (this is only called in case of an error)
- */
-static inline void free_swap_map_entries(struct swap_map_page *swap_map)
-{
- while (swap_map) {
- if (swap_map->next_swap.val)
- swap_free(swap_map->next_swap);
- swap_map = swap_map->next;
- }
-}
-
-/**
- * save_swap_map - save the swap map used for tracing the data pages
- * stored in the swap
- */
-
-static int save_swap_map(struct swap_map_page *swap_map, swp_entry_t *start)
-{
- swp_entry_t entry = (swp_entry_t){0};
- int error;
-
- while (swap_map) {
- swap_map->next_swap = entry;
- if ((error = write_page((unsigned long)swap_map, &entry)))
- return error;
- swap_map = swap_map->next;
- }
- *start = entry;
- return 0;
-}
-
-/**
- * free_image_entries - free the swap entries allocated to store
- * the image data pages (this is only called in case of an error)
- */
-
-static inline void free_image_entries(struct swap_map_page *swp)
-{
- unsigned k;
-
- while (swp) {
- for (k = 0; k < MAP_PAGE_SIZE; k++)
- if (swp->entries[k].val)
- swap_free(swp->entries[k]);
- swp = swp->next;
- }
-}
-
-/**
- * The swap_map_handle structure is used for handling the swap map in
- * a file-alike way
- */
-
-struct swap_map_handle {
- struct swap_map_page *cur;
- unsigned int k;
-};
-
-static inline void init_swap_map_handle(struct swap_map_handle *handle,
- struct swap_map_page *map)
-{
- handle->cur = map;
- handle->k = 0;
-}
-
-static inline int swap_map_write_page(struct swap_map_handle *handle,
- unsigned long addr)
-{
- int error;
-
- error = write_page(addr, handle->cur->entries + handle->k);
- if (error)
- return error;
- if (++handle->k >= MAP_PAGE_SIZE) {
- handle->cur = handle->cur->next;
- handle->k = 0;
- }
- return 0;
-}
-
-/**
- * save_image_data - save the data pages pointed to by the PBEs
- * from the list @pblist using the swap map handle @handle
- * (assume there are @nr_pages data pages to save)
- */
-
-static int save_image_data(struct pbe *pblist,
- struct swap_map_handle *handle,
- unsigned int nr_pages)
-{
- unsigned int m;
- struct pbe *p;
- int error = 0;
-
- printk("Saving image data pages (%u pages) ... ", nr_pages);
- m = nr_pages / 100;
- if (!m)
- m = 1;
- nr_pages = 0;
- for_each_pbe (p, pblist) {
- error = swap_map_write_page(handle, p->address);
- if (error)
- break;
- if (!(nr_pages % m))
- printk("\b\b\b\b%3d%%", nr_pages / m);
- nr_pages++;
- }
- if (!error)
- printk("\b\b\b\bdone\n");
- return error;
-}
-
-static void dump_info(void)
-{
- pr_debug(" swsusp: Version: %u\n",swsusp_info.version_code);
- pr_debug(" swsusp: Num Pages: %ld\n",swsusp_info.num_physpages);
- pr_debug(" swsusp: UTS Sys: %s\n",swsusp_info.uts.sysname);
- pr_debug(" swsusp: UTS Node: %s\n",swsusp_info.uts.nodename);
- pr_debug(" swsusp: UTS Release: %s\n",swsusp_info.uts.release);
- pr_debug(" swsusp: UTS Version: %s\n",swsusp_info.uts.version);
- pr_debug(" swsusp: UTS Machine: %s\n",swsusp_info.uts.machine);
- pr_debug(" swsusp: UTS Domain: %s\n",swsusp_info.uts.domainname);
- pr_debug(" swsusp: CPUs: %d\n",swsusp_info.cpus);
- pr_debug(" swsusp: Image: %ld Pages\n",swsusp_info.image_pages);
- pr_debug(" swsusp: Total: %ld Pages\n", swsusp_info.pages);
-}
-
-static void init_header(unsigned int nr_pages)
-{
- memset(&swsusp_info, 0, sizeof(swsusp_info));
- swsusp_info.version_code = LINUX_VERSION_CODE;
- swsusp_info.num_physpages = num_physpages;
- memcpy(&swsusp_info.uts, &system_utsname, sizeof(system_utsname));
-
- swsusp_info.cpus = num_online_cpus();
- swsusp_info.image_pages = nr_pages;
- swsusp_info.pages = nr_pages +
- ((nr_pages * sizeof(long) + PAGE_SIZE - 1) >> PAGE_SHIFT) + 1;
-}
-
-/**
- * pack_orig_addresses - the .orig_address fields of the PBEs from the
- * list starting at @pbe are stored in the array @buf[] (1 page)
- */
-
-static inline struct pbe *pack_orig_addresses(unsigned long *buf,
- struct pbe *pbe)
-{
- int j;
-
- for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) {
- buf[j] = pbe->orig_address;
- pbe = pbe->next;
- }
- if (!pbe)
- for (; j < PAGE_SIZE / sizeof(long); j++)
- buf[j] = 0;
- return pbe;
-}
-
-/**
- * save_image_metadata - save the .orig_address fields of the PBEs
- * from the list @pblist using the swap map handle @handle
- */
-
-static int save_image_metadata(struct pbe *pblist,
- struct swap_map_handle *handle)
-{
- unsigned long *buf;
- unsigned int n = 0;
- struct pbe *p;
- int error = 0;
-
- printk("Saving image metadata ... ");
- buf = (unsigned long *)get_zeroed_page(GFP_ATOMIC);
- if (!buf)
- return -ENOMEM;
- p = pblist;
- while (p) {
- p = pack_orig_addresses(buf, p);
- error = swap_map_write_page(handle, (unsigned long)buf);
- if (error)
- break;
+ if (!bitmap)
+ return -EINVAL;
+ n -= BITMAP_PAGE_BITS;
+ bit -= n;
+ n = 0;
+ while (bit >= BITS_PER_CHUNK) {
+ bit -= BITS_PER_CHUNK;
n++;
}
- free_page((unsigned long)buf);
- if (!error)
- printk("done (%u pages saved)\n", n);
- return error;
+ bitmap->chunks[n] |= (1UL << bit);
+ return 0;
}
-/**
- * enough_swap - Make sure we have enough swap to save the image.
- *
- * Returns TRUE or FALSE after checking the total amount of swap
- * space avaiable from the resume partition.
- */
-
-static int enough_swap(unsigned int nr_pages)
+unsigned long alloc_swap_page(int swap, struct bitmap_page *bitmap)
{
- unsigned int free_swap = swap_info[root_swap].pages -
- swap_info[root_swap].inuse_pages;
+ unsigned long offset;
- pr_debug("swsusp: free swap pages: %u\n", free_swap);
- return free_swap > (nr_pages + PAGES_FOR_IO +
- (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE);
+ offset = swp_offset(get_swap_page_of_type(swap));
+ if (offset) {
+ if (bitmap_set(bitmap, offset)) {
+ swap_free(swp_entry(swap, offset));
+ offset = 0;
+ }
+ }
+ return offset;
}
-/**
- * swsusp_write - Write entire image and metadata.
- *
- * It is important _NOT_ to umount filesystems at this point. We want
- * them synced (in case something goes wrong) but we DO not want to mark
- * filesystem clean: it is not. (And it does not matter, if we resume
- * correctly, we'll mark system clean, anyway.)
- */
-
-int swsusp_write(struct pbe *pblist, unsigned int nr_pages)
+void free_all_swap_pages(int swap, struct bitmap_page *bitmap)
{
- struct swap_map_page *swap_map;
- struct swap_map_handle handle;
- swp_entry_t start;
- int error;
+ unsigned int bit, n;
+ unsigned long test;
- if ((error = swsusp_swap_check())) {
- printk(KERN_ERR "swsusp: Cannot find swap device, try swapon -a.\n");
- return error;
+ bit = 0;
+ while (bitmap) {
+ for (n = 0; n < BITMAP_PAGE_CHUNKS; n++)
+ for (test = 1UL; test; test <<= 1) {
+ if (bitmap->chunks[n] & test)
+ swap_free(swp_entry(swap, bit));
+ bit++;
+ }
+ bitmap = bitmap->next;
}
- if (!enough_swap(nr_pages)) {
- printk(KERN_ERR "swsusp: Not enough free swap\n");
- return -ENOSPC;
- }
-
- init_header(nr_pages);
- swap_map = alloc_swap_map(swsusp_info.pages);
- if (!swap_map)
- return -ENOMEM;
- init_swap_map_handle(&handle, swap_map);
-
- error = swap_map_write_page(&handle, (unsigned long)&swsusp_info);
- if (!error)
- error = save_image_metadata(pblist, &handle);
- if (!error)
- error = save_image_data(pblist, &handle, nr_pages);
- if (error)
- goto Free_image_entries;
-
- swap_map = reverse_swap_map(swap_map);
- error = save_swap_map(swap_map, &start);
- if (error)
- goto Free_map_entries;
-
- dump_info();
- printk( "S" );
- error = mark_swapfiles(start);
- printk( "|\n" );
- if (error)
- goto Free_map_entries;
-
-Free_swap_map:
- free_swap_map(swap_map);
- return error;
-
-Free_map_entries:
- free_swap_map_entries(swap_map);
-Free_image_entries:
- free_image_entries(swap_map);
- goto Free_swap_map;
}
/**
@@ -660,379 +271,3 @@
local_irq_enable();
return error;
}
-
-/**
- * mark_unsafe_pages - mark the pages that cannot be used for storing
- * the image during resume, because they conflict with the pages that
- * had been used before suspend
- */
-
-static void mark_unsafe_pages(struct pbe *pblist)
-{
- struct zone *zone;
- unsigned long zone_pfn;
- struct pbe *p;
-
- if (!pblist) /* a sanity check */
- return;
-
- /* Clear page flags */
- for_each_zone (zone) {
- for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn)
- if (pfn_valid(zone_pfn + zone->zone_start_pfn))
- ClearPageNosaveFree(pfn_to_page(zone_pfn +
- zone->zone_start_pfn));
- }
-
- /* Mark orig addresses */
- for_each_pbe (p, pblist)
- SetPageNosaveFree(virt_to_page(p->orig_address));
-
-}
-
-static void copy_page_backup_list(struct pbe *dst, struct pbe *src)
-{
- /* We assume both lists contain the same number of elements */
- while (src) {
- dst->orig_address = src->orig_address;
- dst = dst->next;
- src = src->next;
- }
-}
-
-/*
- * Using bio to read from swap.
- * This code requires a bit more work than just using buffer heads
- * but, it is the recommended way for 2.5/2.6.
- * The following are to signal the beginning and end of I/O. Bios
- * finish asynchronously, while we want them to happen synchronously.
- * A simple atomic_t, and a wait loop take care of this problem.
- */
-
-static atomic_t io_done = ATOMIC_INIT(0);
-
-static int end_io(struct bio *bio, unsigned int num, int err)
-{
- if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
- panic("I/O error reading memory image");
- atomic_set(&io_done, 0);
- return 0;
-}
-
-static struct block_device *resume_bdev;
-
-/**
- * submit - submit BIO request.
- * @rw: READ or WRITE.
- * @off physical offset of page.
- * @page: page we're reading or writing.
- *
- * Straight from the textbook - allocate and initialize the bio.
- * If we're writing, make sure the page is marked as dirty.
- * Then submit it and wait.
- */
-
-static int submit(int rw, pgoff_t page_off, void *page)
-{
- int error = 0;
- struct bio *bio;
-
- bio = bio_alloc(GFP_ATOMIC, 1);
- if (!bio)
- return -ENOMEM;
- bio->bi_sector = page_off * (PAGE_SIZE >> 9);
- bio->bi_bdev = resume_bdev;
- bio->bi_end_io = end_io;
-
- if (bio_add_page(bio, virt_to_page(page), PAGE_SIZE, 0) < PAGE_SIZE) {
- printk("swsusp: ERROR: adding page to bio at %ld\n",page_off);
- error = -EFAULT;
- goto Done;
- }
-
-
- atomic_set(&io_done, 1);
- submit_bio(rw | (1 << BIO_RW_SYNC), bio);
- while (atomic_read(&io_done))
- yield();
- if (rw == READ)
- bio_set_pages_dirty(bio);
- Done:
- bio_put(bio);
- return error;
-}
-
-static int bio_read_page(pgoff_t page_off, void *page)
-{
- return submit(READ, page_off, page);
-}
-
-static int bio_write_page(pgoff_t page_off, void *page)
-{
- return submit(WRITE, page_off, page);
-}
-
-/**
- * The following functions allow us to read data using a swap map
- * in a file-alike way
- */
-
-static inline void release_swap_map_reader(struct swap_map_handle *handle)
-{
- if (handle->cur)
- free_page((unsigned long)handle->cur);
- handle->cur = NULL;
-}
-
-static inline int get_swap_map_reader(struct swap_map_handle *handle,
- swp_entry_t start)
-{
- int error;
-
- if (!swp_offset(start))
- return -EINVAL;
- handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_ATOMIC);
- if (!handle->cur)
- return -ENOMEM;
- error = bio_read_page(swp_offset(start), handle->cur);
- if (error) {
- release_swap_map_reader(handle);
- return error;
- }
- handle->k = 0;
- return 0;
-}
-
-static inline int swap_map_read_page(struct swap_map_handle *handle, void *buf)
-{
- unsigned long offset;
- int error;
-
- if (!handle->cur)
- return -EINVAL;
- offset = swp_offset(handle->cur->entries[handle->k]);
- if (!offset)
- return -EINVAL;
- error = bio_read_page(offset, buf);
- if (error)
- return error;
- if (++handle->k >= MAP_PAGE_SIZE) {
- handle->k = 0;
- offset = swp_offset(handle->cur->next_swap);
- if (!offset)
- release_swap_map_reader(handle);
- else
- error = bio_read_page(offset, handle->cur);
- }
- return error;
-}
-
-static int check_header(void)
-{
- char *reason = NULL;
-
- dump_info();
- if (swsusp_info.version_code != LINUX_VERSION_CODE)
- reason = "kernel version";
- if (swsusp_info.num_physpages != num_physpages)
- reason = "memory size";
- if (strcmp(swsusp_info.uts.sysname,system_utsname.sysname))
- reason = "system type";
- if (strcmp(swsusp_info.uts.release,system_utsname.release))
- reason = "kernel release";
- if (strcmp(swsusp_info.uts.version,system_utsname.version))
- reason = "version";
- if (strcmp(swsusp_info.uts.machine,system_utsname.machine))
- reason = "machine";
- if (reason) {
- printk(KERN_ERR "swsusp: Resume mismatch: %s\n", reason);
- return -EPERM;
- }
- return 0;
-}
-
-/**
- * load_image_data - load the image data using the swap map handle
- * @handle and store them using the page backup list @pblist
- * (assume there are @nr_pages pages to load)
- */
-
-static int load_image_data(struct pbe *pblist,
- struct swap_map_handle *handle,
- unsigned int nr_pages)
-{
- int error;
- unsigned int m;
- struct pbe *p;
-
- if (!pblist)
- return -EINVAL;
- printk("Loading image data pages (%u pages) ... ", nr_pages);
- m = nr_pages / 100;
- if (!m)
- m = 1;
- nr_pages = 0;
- p = pblist;
- while (p) {
- error = swap_map_read_page(handle, (void *)p->address);
- if (error)
- break;
- p = p->next;
- if (!(nr_pages % m))
- printk("\b\b\b\b%3d%%", nr_pages / m);
- nr_pages++;
- }
- if (!error)
- printk("\b\b\b\bdone\n");
- return error;
-}
-
-/**
- * unpack_orig_addresses - copy the elements of @buf[] (1 page) to
- * the PBEs in the list starting at @pbe
- */
-
-static inline struct pbe *unpack_orig_addresses(unsigned long *buf,
- struct pbe *pbe)
-{
- int j;
-
- for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) {
- pbe->orig_address = buf[j];
- pbe = pbe->next;
- }
- return pbe;
-}
-
-/**
- * load_image_metadata - load the image metadata using the swap map
- * handle @handle and put them into the PBEs in the list @pblist
- */
-
-static int load_image_metadata(struct pbe *pblist, struct swap_map_handle *handle)
-{
- struct pbe *p;
- unsigned long *buf;
- unsigned int n = 0;
- int error = 0;
-
- printk("Loading image metadata ... ");
- buf = (unsigned long *)get_zeroed_page(GFP_ATOMIC);
- if (!buf)
- return -ENOMEM;
- p = pblist;
- while (p) {
- error = swap_map_read_page(handle, buf);
- if (error)
- break;
- p = unpack_orig_addresses(buf, p);
- n++;
- }
- free_page((unsigned long)buf);
- if (!error)
- printk("done (%u pages loaded)\n", n);
- return error;
-}
-
-int swsusp_read(struct pbe **pblist_ptr)
-{
- int error;
- struct pbe *p, *pblist;
- struct swap_map_handle handle;
- unsigned int nr_pages;
-
- if (IS_ERR(resume_bdev)) {
- pr_debug("swsusp: block device not initialised\n");
- return PTR_ERR(resume_bdev);
- }
-
- error = get_swap_map_reader(&handle, swsusp_header.image);
- if (!error)
- error = swap_map_read_page(&handle, &swsusp_info);
- if (!error)
- error = check_header();
- if (error)
- return error;
- nr_pages = swsusp_info.image_pages;
- p = alloc_pagedir(nr_pages, GFP_ATOMIC, 0);
- if (!p)
- return -ENOMEM;
- error = load_image_metadata(p, &handle);
- if (!error) {
- mark_unsafe_pages(p);
- pblist = alloc_pagedir(nr_pages, GFP_ATOMIC, 1);
- if (pblist)
- copy_page_backup_list(pblist, p);
- free_pagedir(p);
- if (!pblist)
- error = -ENOMEM;
-
- /* Allocate memory for the image and read the data from swap */
- if (!error)
- error = alloc_data_pages(pblist, GFP_ATOMIC, 1);
- if (!error) {
- release_eaten_pages();
- error = load_image_data(pblist, &handle, nr_pages);
- }
- if (!error)
- *pblist_ptr = pblist;
- }
- release_swap_map_reader(&handle);
-
- blkdev_put(resume_bdev);
-
- if (!error)
- pr_debug("swsusp: Reading resume file was successful\n");
- else
- pr_debug("swsusp: Error %d resuming\n", error);
- return error;
-}
-
-/**
- * swsusp_check - Check for swsusp signature in the resume device
- */
-
-int swsusp_check(void)
-{
- int error;
-
- resume_bdev = open_by_devnum(swsusp_resume_device, FMODE_READ);
- if (!IS_ERR(resume_bdev)) {
- set_blocksize(resume_bdev, PAGE_SIZE);
- memset(&swsusp_header, 0, sizeof(swsusp_header));
- if ((error = bio_read_page(0, &swsusp_header)))
- return error;
- if (!memcmp(SWSUSP_SIG, swsusp_header.sig, 10)) {
- memcpy(swsusp_header.sig, swsusp_header.orig_sig, 10);
- /* Reset swap signature now */
- error = bio_write_page(0, &swsusp_header);
- } else {
- return -EINVAL;
- }
- if (error)
- blkdev_put(resume_bdev);
- else
- pr_debug("swsusp: Signature found, resuming\n");
- } else {
- error = PTR_ERR(resume_bdev);
- }
-
- if (error)
- pr_debug("swsusp: Error %d check for resume file\n", error);
-
- return error;
-}
-
-/**
- * swsusp_close - close swap device.
- */
-
-void swsusp_close(void)
-{
- if (IS_ERR(resume_bdev)) {
- pr_debug("swsusp: block device not initialised\n");
- return;
- }
-
- blkdev_put(resume_bdev);
-}
diff --git a/kernel/power/user.c b/kernel/power/user.c
new file mode 100644
index 0000000..3f1539f
--- /dev/null
+++ b/kernel/power/user.c
@@ -0,0 +1,333 @@
+/*
+ * linux/kernel/power/user.c
+ *
+ * This file provides the user space interface for software suspend/resume.
+ *
+ * Copyright (C) 2006 Rafael J. Wysocki <rjw@sisk.pl>
+ *
+ * This file is released under the GPLv2.
+ *
+ */
+
+#include <linux/suspend.h>
+#include <linux/syscalls.h>
+#include <linux/string.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/swapops.h>
+#include <linux/pm.h>
+#include <linux/fs.h>
+
+#include <asm/uaccess.h>
+
+#include "power.h"
+
+#define SNAPSHOT_MINOR 231
+
+static struct snapshot_data {
+ struct snapshot_handle handle;
+ int swap;
+ struct bitmap_page *bitmap;
+ int mode;
+ char frozen;
+ char ready;
+} snapshot_state;
+
+static atomic_t device_available = ATOMIC_INIT(1);
+
+static int snapshot_open(struct inode *inode, struct file *filp)
+{
+ struct snapshot_data *data;
+
+ if (!atomic_add_unless(&device_available, -1, 0))
+ return -EBUSY;
+
+ if ((filp->f_flags & O_ACCMODE) == O_RDWR)
+ return -ENOSYS;
+
+ nonseekable_open(inode, filp);
+ data = &snapshot_state;
+ filp->private_data = data;
+ memset(&data->handle, 0, sizeof(struct snapshot_handle));
+ if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {
+ data->swap = swsusp_resume_device ? swap_type_of(swsusp_resume_device) : -1;
+ data->mode = O_RDONLY;
+ } else {
+ data->swap = -1;
+ data->mode = O_WRONLY;
+ }
+ data->bitmap = NULL;
+ data->frozen = 0;
+ data->ready = 0;
+
+ return 0;
+}
+
+static int snapshot_release(struct inode *inode, struct file *filp)
+{
+ struct snapshot_data *data;
+
+ swsusp_free();
+ data = filp->private_data;
+ free_all_swap_pages(data->swap, data->bitmap);
+ free_bitmap(data->bitmap);
+ if (data->frozen) {
+ down(&pm_sem);
+ thaw_processes();
+ enable_nonboot_cpus();
+ up(&pm_sem);
+ }
+ atomic_inc(&device_available);
+ return 0;
+}
+
+static ssize_t snapshot_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *offp)
+{
+ struct snapshot_data *data;
+ ssize_t res;
+
+ data = filp->private_data;
+ res = snapshot_read_next(&data->handle, count);
+ if (res > 0) {
+ if (copy_to_user(buf, data_of(data->handle), res))
+ res = -EFAULT;
+ else
+ *offp = data->handle.offset;
+ }
+ return res;
+}
+
+static ssize_t snapshot_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *offp)
+{
+ struct snapshot_data *data;
+ ssize_t res;
+
+ data = filp->private_data;
+ res = snapshot_write_next(&data->handle, count);
+ if (res > 0) {
+ if (copy_from_user(data_of(data->handle), buf, res))
+ res = -EFAULT;
+ else
+ *offp = data->handle.offset;
+ }
+ return res;
+}
+
+static int snapshot_ioctl(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ int error = 0;
+ struct snapshot_data *data;
+ loff_t offset, avail;
+
+ if (_IOC_TYPE(cmd) != SNAPSHOT_IOC_MAGIC)
+ return -ENOTTY;
+ if (_IOC_NR(cmd) > SNAPSHOT_IOC_MAXNR)
+ return -ENOTTY;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ data = filp->private_data;
+
+ switch (cmd) {
+
+ case SNAPSHOT_FREEZE:
+ if (data->frozen)
+ break;
+ down(&pm_sem);
+ disable_nonboot_cpus();
+ if (freeze_processes()) {
+ thaw_processes();
+ enable_nonboot_cpus();
+ error = -EBUSY;
+ }
+ up(&pm_sem);
+ if (!error)
+ data->frozen = 1;
+ break;
+
+ case SNAPSHOT_UNFREEZE:
+ if (!data->frozen)
+ break;
+ down(&pm_sem);
+ thaw_processes();
+ enable_nonboot_cpus();
+ up(&pm_sem);
+ data->frozen = 0;
+ break;
+
+ case SNAPSHOT_ATOMIC_SNAPSHOT:
+ if (data->mode != O_RDONLY || !data->frozen || data->ready) {
+ error = -EPERM;
+ break;
+ }
+ down(&pm_sem);
+ /* Free memory before shutting down devices. */
+ error = swsusp_shrink_memory();
+ if (!error) {
+ error = device_suspend(PMSG_FREEZE);
+ if (!error) {
+ in_suspend = 1;
+ error = swsusp_suspend();
+ device_resume();
+ }
+ }
+ up(&pm_sem);
+ if (!error)
+ error = put_user(in_suspend, (unsigned int __user *)arg);
+ if (!error)
+ data->ready = 1;
+ break;
+
+ case SNAPSHOT_ATOMIC_RESTORE:
+ if (data->mode != O_WRONLY || !data->frozen ||
+ !snapshot_image_loaded(&data->handle)) {
+ error = -EPERM;
+ break;
+ }
+ down(&pm_sem);
+ pm_prepare_console();
+ error = device_suspend(PMSG_FREEZE);
+ if (!error) {
+ error = swsusp_resume();
+ device_resume();
+ }
+ pm_restore_console();
+ up(&pm_sem);
+ break;
+
+ case SNAPSHOT_FREE:
+ swsusp_free();
+ memset(&data->handle, 0, sizeof(struct snapshot_handle));
+ data->ready = 0;
+ break;
+
+ case SNAPSHOT_SET_IMAGE_SIZE:
+ image_size = arg;
+ break;
+
+ case SNAPSHOT_AVAIL_SWAP:
+ avail = count_swap_pages(data->swap, 1);
+ avail <<= PAGE_SHIFT;
+ error = put_user(avail, (loff_t __user *)arg);
+ break;
+
+ case SNAPSHOT_GET_SWAP_PAGE:
+ if (data->swap < 0 || data->swap >= MAX_SWAPFILES) {
+ error = -ENODEV;
+ break;
+ }
+ if (!data->bitmap) {
+ data->bitmap = alloc_bitmap(count_swap_pages(data->swap, 0));
+ if (!data->bitmap) {
+ error = -ENOMEM;
+ break;
+ }
+ }
+ offset = alloc_swap_page(data->swap, data->bitmap);
+ if (offset) {
+ offset <<= PAGE_SHIFT;
+ error = put_user(offset, (loff_t __user *)arg);
+ } else {
+ error = -ENOSPC;
+ }
+ break;
+
+ case SNAPSHOT_FREE_SWAP_PAGES:
+ if (data->swap < 0 || data->swap >= MAX_SWAPFILES) {
+ error = -ENODEV;
+ break;
+ }
+ free_all_swap_pages(data->swap, data->bitmap);
+ free_bitmap(data->bitmap);
+ data->bitmap = NULL;
+ break;
+
+ case SNAPSHOT_SET_SWAP_FILE:
+ if (!data->bitmap) {
+ /*
+ * User space encodes device types as two-byte values,
+ * so we need to recode them
+ */
+ if (old_decode_dev(arg)) {
+ data->swap = swap_type_of(old_decode_dev(arg));
+ if (data->swap < 0)
+ error = -ENODEV;
+ } else {
+ data->swap = -1;
+ error = -EINVAL;
+ }
+ } else {
+ error = -EPERM;
+ }
+ break;
+
+ case SNAPSHOT_S2RAM:
+ if (!data->frozen) {
+ error = -EPERM;
+ break;
+ }
+
+ if (down_trylock(&pm_sem)) {
+ error = -EBUSY;
+ break;
+ }
+
+ if (pm_ops->prepare) {
+ error = pm_ops->prepare(PM_SUSPEND_MEM);
+ if (error)
+ goto OutS3;
+ }
+
+ /* Put devices to sleep */
+ error = device_suspend(PMSG_SUSPEND);
+ if (error) {
+ printk(KERN_ERR "Failed to suspend some devices.\n");
+ } else {
+ /* Enter S3, system is already frozen */
+ suspend_enter(PM_SUSPEND_MEM);
+
+ /* Wake up devices */
+ device_resume();
+ }
+
+ if (pm_ops->finish)
+ pm_ops->finish(PM_SUSPEND_MEM);
+
+OutS3:
+ up(&pm_sem);
+ break;
+
+ default:
+ error = -ENOTTY;
+
+ }
+
+ return error;
+}
+
+static struct file_operations snapshot_fops = {
+ .open = snapshot_open,
+ .release = snapshot_release,
+ .read = snapshot_read,
+ .write = snapshot_write,
+ .llseek = no_llseek,
+ .ioctl = snapshot_ioctl,
+};
+
+static struct miscdevice snapshot_device = {
+ .minor = SNAPSHOT_MINOR,
+ .name = "snapshot",
+ .fops = &snapshot_fops,
+};
+
+static int __init snapshot_device_init(void)
+{
+ return misc_register(&snapshot_device);
+};
+
+device_initcall(snapshot_device_init);
diff --git a/kernel/profile.c b/kernel/profile.c
index f89248e..ad81f79 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -23,6 +23,7 @@
#include <linux/cpu.h>
#include <linux/profile.h>
#include <linux/highmem.h>
+#include <linux/mutex.h>
#include <asm/sections.h>
#include <asm/semaphore.h>
@@ -44,7 +45,7 @@
#ifdef CONFIG_SMP
static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
static DEFINE_PER_CPU(int, cpu_profile_flip);
-static DECLARE_MUTEX(profile_flip_mutex);
+static DEFINE_MUTEX(profile_flip_mutex);
#endif /* CONFIG_SMP */
static int __init profile_setup(char * str)
@@ -243,7 +244,7 @@
{
int i, j, cpu;
- down(&profile_flip_mutex);
+ mutex_lock(&profile_flip_mutex);
j = per_cpu(cpu_profile_flip, get_cpu());
put_cpu();
on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
@@ -259,14 +260,14 @@
hits[i].hits = hits[i].pc = 0;
}
}
- up(&profile_flip_mutex);
+ mutex_unlock(&profile_flip_mutex);
}
static void profile_discard_flip_buffers(void)
{
int i, cpu;
- down(&profile_flip_mutex);
+ mutex_lock(&profile_flip_mutex);
i = per_cpu(cpu_profile_flip, get_cpu());
put_cpu();
on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
@@ -274,7 +275,7 @@
struct profile_hit *hits = per_cpu(cpu_profile_hits, cpu)[i];
memset(hits, 0, NR_PROFILE_HIT*sizeof(struct profile_hit));
}
- up(&profile_flip_mutex);
+ mutex_unlock(&profile_flip_mutex);
}
void profile_hit(int type, void *__pc)
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index fedf5e3..6df1559 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -47,15 +47,16 @@
#include <linux/notifier.h>
#include <linux/rcupdate.h>
#include <linux/cpu.h>
+#include <linux/mutex.h>
/* Definition for rcupdate control block. */
-struct rcu_ctrlblk rcu_ctrlblk = {
+static struct rcu_ctrlblk rcu_ctrlblk = {
.cur = -300,
.completed = -300,
.lock = SPIN_LOCK_UNLOCKED,
.cpumask = CPU_MASK_NONE,
};
-struct rcu_ctrlblk rcu_bh_ctrlblk = {
+static struct rcu_ctrlblk rcu_bh_ctrlblk = {
.cur = -300,
.completed = -300,
.lock = SPIN_LOCK_UNLOCKED,
@@ -75,7 +76,7 @@
#endif
static atomic_t rcu_barrier_cpu_count;
-static struct semaphore rcu_barrier_sema;
+static DEFINE_MUTEX(rcu_barrier_mutex);
static struct completion rcu_barrier_completion;
#ifdef CONFIG_SMP
@@ -207,13 +208,13 @@
void rcu_barrier(void)
{
BUG_ON(in_interrupt());
- /* Take cpucontrol semaphore to protect against CPU hotplug */
- down(&rcu_barrier_sema);
+ /* Take cpucontrol mutex to protect against CPU hotplug */
+ mutex_lock(&rcu_barrier_mutex);
init_completion(&rcu_barrier_completion);
atomic_set(&rcu_barrier_cpu_count, 0);
on_each_cpu(rcu_barrier_func, NULL, 0, 1);
wait_for_completion(&rcu_barrier_completion);
- up(&rcu_barrier_sema);
+ mutex_unlock(&rcu_barrier_mutex);
}
EXPORT_SYMBOL_GPL(rcu_barrier);
@@ -549,7 +550,6 @@
*/
void __init rcu_init(void)
{
- sema_init(&rcu_barrier_sema, 1);
rcu_cpu_notify(&rcu_nb, CPU_UP_PREPARE,
(void *)(long)smp_processor_id());
/* Register notifier for non-boot CPUs */
diff --git a/kernel/sched.c b/kernel/sched.c
index 6b6e0d7..7ffaabd 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -237,6 +237,7 @@
task_t *migration_thread;
struct list_head migration_queue;
+ int cpu;
#endif
#ifdef CONFIG_SCHEDSTATS
@@ -1654,6 +1655,9 @@
/*
* double_rq_lock - safely lock two runqueues
*
+ * We must take them in cpu order to match code in
+ * dependent_sleeper and wake_dependent_sleeper.
+ *
* Note this does not disable interrupts like task_rq_lock,
* you need to do so manually before calling.
*/
@@ -1665,7 +1669,7 @@
spin_lock(&rq1->lock);
__acquire(rq2->lock); /* Fake it out ;) */
} else {
- if (rq1 < rq2) {
+ if (rq1->cpu < rq2->cpu) {
spin_lock(&rq1->lock);
spin_lock(&rq2->lock);
} else {
@@ -1701,7 +1705,7 @@
__acquires(this_rq->lock)
{
if (unlikely(!spin_trylock(&busiest->lock))) {
- if (busiest < this_rq) {
+ if (busiest->cpu < this_rq->cpu) {
spin_unlock(&this_rq->lock);
spin_lock(&busiest->lock);
spin_lock(&this_rq->lock);
@@ -2869,7 +2873,7 @@
*/
if (likely(!current->exit_state)) {
if (unlikely(in_atomic())) {
- printk(KERN_ERR "scheduling while atomic: "
+ printk(KERN_ERR "BUG: scheduling while atomic: "
"%s/0x%08x/%d\n",
current->comm, preempt_count(), current->pid);
dump_stack();
@@ -6029,6 +6033,7 @@
rq->push_cpu = 0;
rq->migration_thread = NULL;
INIT_LIST_HEAD(&rq->migration_queue);
+ rq->cpu = i;
#endif
atomic_set(&rq->nr_iowait, 0);
@@ -6069,7 +6074,7 @@
if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy)
return;
prev_jiffy = jiffies;
- printk(KERN_ERR "Debug: sleeping function called from invalid"
+ printk(KERN_ERR "BUG: sleeping function called from invalid"
" context at %s:%d\n", file, line);
printk("in_atomic():%d, irqs_disabled():%d\n",
in_atomic(), irqs_disabled());
diff --git a/kernel/signal.c b/kernel/signal.c
index ea15410..75f7341 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1922,6 +1922,8 @@
sigset_t *mask = ¤t->blocked;
int signr = 0;
+ try_to_freeze();
+
relock:
spin_lock_irq(¤t->sighand->siglock);
for (;;) {
@@ -2099,10 +2101,11 @@
int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
{
int error;
- sigset_t old_block;
spin_lock_irq(¤t->sighand->siglock);
- old_block = current->blocked;
+ if (oldset)
+ *oldset = current->blocked;
+
error = 0;
switch (how) {
case SIG_BLOCK:
@@ -2119,8 +2122,7 @@
}
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- if (oldset)
- *oldset = old_block;
+
return error;
}
@@ -2307,7 +2309,6 @@
timeout = schedule_timeout_interruptible(timeout);
- try_to_freeze();
spin_lock_irq(¤t->sighand->siglock);
sig = dequeue_signal(current, &these, &info);
current->blocked = current->real_blocked;
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index 0375fcd..d1b8107 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -179,16 +179,16 @@
#define BUILD_LOCK_OPS(op, locktype) \
void __lockfunc _##op##_lock(locktype##_t *lock) \
{ \
- preempt_disable(); \
for (;;) { \
+ preempt_disable(); \
if (likely(_raw_##op##_trylock(lock))) \
break; \
preempt_enable(); \
+ \
if (!(lock)->break_lock) \
(lock)->break_lock = 1; \
while (!op##_can_lock(lock) && (lock)->break_lock) \
cpu_relax(); \
- preempt_disable(); \
} \
(lock)->break_lock = 0; \
} \
@@ -199,19 +199,18 @@
{ \
unsigned long flags; \
\
- preempt_disable(); \
for (;;) { \
+ preempt_disable(); \
local_irq_save(flags); \
if (likely(_raw_##op##_trylock(lock))) \
break; \
local_irq_restore(flags); \
- \
preempt_enable(); \
+ \
if (!(lock)->break_lock) \
(lock)->break_lock = 1; \
while (!op##_can_lock(lock) && (lock)->break_lock) \
cpu_relax(); \
- preempt_disable(); \
} \
(lock)->break_lock = 0; \
return flags; \
diff --git a/kernel/sys.c b/kernel/sys.c
index f91218a..c0fcad9 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1227,7 +1227,7 @@
struct pid *pid;
int err = -EPERM;
- down(&tty_sem);
+ mutex_lock(&tty_mutex);
write_lock_irq(&tasklist_lock);
pid = find_pid(PIDTYPE_PGID, group_leader->pid);
@@ -1241,7 +1241,7 @@
err = process_group(group_leader);
out:
write_unlock_irq(&tasklist_lock);
- up(&tty_sem);
+ mutex_unlock(&tty_mutex);
return err;
}
@@ -1677,9 +1677,6 @@
* a lot simpler! (Which we're not doing right now because we're not
* measuring them yet).
*
- * This expects to be called with tasklist_lock read-locked or better,
- * and the siglock not locked. It may momentarily take the siglock.
- *
* When sampling multiple threads for RUSAGE_SELF, under SMP we might have
* races with threads incrementing their own counters. But since word
* reads are atomic, we either get new values or old values and we don't
@@ -1687,6 +1684,25 @@
* the c* fields from p->signal from races with exit.c updating those
* fields when reaping, so a sample either gets all the additions of a
* given child after it's reaped, or none so this sample is before reaping.
+ *
+ * tasklist_lock locking optimisation:
+ * If we are current and single threaded, we do not need to take the tasklist
+ * lock or the siglock. No one else can take our signal_struct away,
+ * no one else can reap the children to update signal->c* counters, and
+ * no one else can race with the signal-> fields.
+ * If we do not take the tasklist_lock, the signal-> fields could be read
+ * out of order while another thread was just exiting. So we place a
+ * read memory barrier when we avoid the lock. On the writer side,
+ * write memory barrier is implied in __exit_signal as __exit_signal releases
+ * the siglock spinlock after updating the signal-> fields.
+ *
+ * We don't really need the siglock when we access the non c* fields
+ * of the signal_struct (for RUSAGE_SELF) even in multithreaded
+ * case, since we take the tasklist lock for read and the non c* signal->
+ * fields are updated only in __exit_signal, which is called with
+ * tasklist_lock taken for write, hence these two threads cannot execute
+ * concurrently.
+ *
*/
static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
@@ -1694,14 +1710,24 @@
struct task_struct *t;
unsigned long flags;
cputime_t utime, stime;
+ int need_lock = 0;
memset((char *) r, 0, sizeof *r);
-
- if (unlikely(!p->signal))
- return;
-
utime = stime = cputime_zero;
+ if (p != current || !thread_group_empty(p))
+ need_lock = 1;
+
+ if (need_lock) {
+ read_lock(&tasklist_lock);
+ if (unlikely(!p->signal)) {
+ read_unlock(&tasklist_lock);
+ return;
+ }
+ } else
+ /* See locking comments above */
+ smp_rmb();
+
switch (who) {
case RUSAGE_BOTH:
case RUSAGE_CHILDREN:
@@ -1740,6 +1766,8 @@
BUG();
}
+ if (need_lock)
+ read_unlock(&tasklist_lock);
cputime_to_timeval(utime, &r->ru_utime);
cputime_to_timeval(stime, &r->ru_stime);
}
@@ -1747,9 +1775,7 @@
int getrusage(struct task_struct *p, int who, struct rusage __user *ru)
{
struct rusage r;
- read_lock(&tasklist_lock);
k_getrusage(p, who, &r);
- read_unlock(&tasklist_lock);
return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
}
diff --git a/lib/reed_solomon/reed_solomon.c b/lib/reed_solomon/reed_solomon.c
index f5fef94..f8ac9fa 100644
--- a/lib/reed_solomon/reed_solomon.c
+++ b/lib/reed_solomon/reed_solomon.c
@@ -44,12 +44,13 @@
#include <linux/module.h>
#include <linux/rslib.h>
#include <linux/slab.h>
+#include <linux/mutex.h>
#include <asm/semaphore.h>
/* This list holds all currently allocated rs control structures */
static LIST_HEAD (rslist);
/* Protection for the list */
-static DECLARE_MUTEX(rslistlock);
+static DEFINE_MUTEX(rslistlock);
/**
* rs_init - Initialize a Reed-Solomon codec
@@ -161,7 +162,7 @@
*/
void free_rs(struct rs_control *rs)
{
- down(&rslistlock);
+ mutex_lock(&rslistlock);
rs->users--;
if(!rs->users) {
list_del(&rs->list);
@@ -170,7 +171,7 @@
kfree(rs->genpoly);
kfree(rs);
}
- up(&rslistlock);
+ mutex_unlock(&rslistlock);
}
/**
@@ -201,7 +202,7 @@
if (nroots < 0 || nroots >= (1<<symsize))
return NULL;
- down(&rslistlock);
+ mutex_lock(&rslistlock);
/* Walk through the list and look for a matching entry */
list_for_each(tmp, &rslist) {
@@ -228,7 +229,7 @@
list_add(&rs->list, &rslist);
}
out:
- up(&rslistlock);
+ mutex_unlock(&rslistlock);
return rs;
}
diff --git a/mm/readahead.c b/mm/readahead.c
index 301b36c..0f142a4 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -555,6 +555,7 @@
out:
return ra->prev_page + 1;
}
+EXPORT_SYMBOL_GPL(page_cache_readahead);
/*
* handle_ra_miss() is called when it is known that a page which should have
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 365ed6f..39aa9d1 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -45,7 +45,7 @@
struct swap_list_t swap_list = {-1, -1};
-struct swap_info_struct swap_info[MAX_SWAPFILES];
+static struct swap_info_struct swap_info[MAX_SWAPFILES];
static DEFINE_MUTEX(swapon_mutex);
@@ -417,6 +417,61 @@
}
}
+#ifdef CONFIG_SOFTWARE_SUSPEND
+/*
+ * Find the swap type that corresponds to given device (if any)
+ *
+ * This is needed for software suspend and is done in such a way that inode
+ * aliasing is allowed.
+ */
+int swap_type_of(dev_t device)
+{
+ int i;
+
+ spin_lock(&swap_lock);
+ for (i = 0; i < nr_swapfiles; i++) {
+ struct inode *inode;
+
+ if (!(swap_info[i].flags & SWP_WRITEOK))
+ continue;
+ if (!device) {
+ spin_unlock(&swap_lock);
+ return i;
+ }
+ inode = swap_info->swap_file->f_dentry->d_inode;
+ if (S_ISBLK(inode->i_mode) &&
+ device == MKDEV(imajor(inode), iminor(inode))) {
+ spin_unlock(&swap_lock);
+ return i;
+ }
+ }
+ spin_unlock(&swap_lock);
+ return -ENODEV;
+}
+
+/*
+ * Return either the total number of swap pages of given type, or the number
+ * of free pages of that type (depending on @free)
+ *
+ * This is needed for software suspend
+ */
+unsigned int count_swap_pages(int type, int free)
+{
+ unsigned int n = 0;
+
+ if (type < nr_swapfiles) {
+ spin_lock(&swap_lock);
+ if (swap_info[type].flags & SWP_WRITEOK) {
+ n = swap_info[type].pages;
+ if (free)
+ n -= swap_info[type].inuse_pages;
+ }
+ spin_unlock(&swap_lock);
+ }
+ return n;
+}
+#endif
+
/*
* No need to decide whether this PTE shares the swap entry with others,
* just let do_wp_page work it out if a write is requested later - to
diff --git a/security/seclvl.c b/security/seclvl.c
index 8529ea6..441beaf 100644
--- a/security/seclvl.c
+++ b/security/seclvl.c
@@ -8,6 +8,7 @@
* Copyright (c) 2001 WireX Communications, Inc <chris@wirex.com>
* Copyright (c) 2001 Greg Kroah-Hartman <greg@kroah.com>
* Copyright (c) 2002 International Business Machines <robb@austin.ibm.com>
+ * Copyright (c) 2006 Davi E. M. Arnaut <davi.arnaut@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
@@ -31,6 +32,7 @@
#include <linux/kobject.h>
#include <linux/crypto.h>
#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
#include <linux/gfp.h>
#include <linux/sysfs.h>
@@ -194,35 +196,27 @@
* people...
*/
static int
-plaintext_to_sha1(unsigned char *hash, const char *plaintext, int len)
+plaintext_to_sha1(unsigned char *hash, const char *plaintext, unsigned int len)
{
- char *pgVirtAddr;
struct crypto_tfm *tfm;
- struct scatterlist sg[1];
+ struct scatterlist sg;
if (len > PAGE_SIZE) {
seclvl_printk(0, KERN_ERR, "Plaintext password too large (%d "
"characters). Largest possible is %lu "
"bytes.\n", len, PAGE_SIZE);
- return -ENOMEM;
+ return -EINVAL;
}
tfm = crypto_alloc_tfm("sha1", CRYPTO_TFM_REQ_MAY_SLEEP);
if (tfm == NULL) {
seclvl_printk(0, KERN_ERR,
"Failed to load transform for SHA1\n");
- return -ENOSYS;
+ return -EINVAL;
}
- // Just get a new page; don't play around with page boundaries
- // and scatterlists.
- pgVirtAddr = (char *)__get_free_page(GFP_KERNEL);
- sg[0].page = virt_to_page(pgVirtAddr);
- sg[0].offset = 0;
- sg[0].length = len;
- strncpy(pgVirtAddr, plaintext, len);
+ sg_init_one(&sg, (u8 *)plaintext, len);
crypto_digest_init(tfm);
- crypto_digest_update(tfm, sg, 1);
+ crypto_digest_update(tfm, &sg, 1);
crypto_digest_final(tfm, hash);
crypto_free_tfm(tfm);
- free_page((unsigned long)pgVirtAddr);
return 0;
}
@@ -234,11 +228,9 @@
passwd_write_file(struct file * file, const char __user * buf,
size_t count, loff_t *ppos)
{
- int i;
- unsigned char tmp[SHA1_DIGEST_SIZE];
- char *page;
- int rc;
+ char *p;
int len;
+ unsigned char tmp[SHA1_DIGEST_SIZE];
if (!*passwd && !*sha1_passwd) {
seclvl_printk(0, KERN_ERR, "Attempt to password-unlock the "
@@ -251,38 +243,39 @@
return -EINVAL;
}
- if (count < 0 || count >= PAGE_SIZE)
+ if (count >= PAGE_SIZE)
return -EINVAL;
if (*ppos != 0)
return -EINVAL;
- page = (char *)get_zeroed_page(GFP_KERNEL);
- if (!page)
+ p = kmalloc(count, GFP_KERNEL);
+ if (!p)
return -ENOMEM;
len = -EFAULT;
- if (copy_from_user(page, buf, count))
+ if (copy_from_user(p, buf, count))
goto out;
- len = strlen(page);
+ len = count;
/* ``echo "secret" > seclvl/passwd'' includes a newline */
- if (page[len - 1] == '\n')
+ if (p[len - 1] == '\n')
len--;
/* Hash the password, then compare the hashed values */
- if ((rc = plaintext_to_sha1(tmp, page, len))) {
+ if ((len = plaintext_to_sha1(tmp, p, len))) {
seclvl_printk(0, KERN_ERR, "Error hashing password: rc = "
- "[%d]\n", rc);
- return rc;
+ "[%d]\n", len);
+ goto out;
}
- for (i = 0; i < SHA1_DIGEST_SIZE; i++) {
- if (hashedPassword[i] != tmp[i])
- return -EPERM;
- }
+
+ len = -EPERM;
+ if (memcmp(hashedPassword, tmp, SHA1_DIGEST_SIZE))
+ goto out;
+
seclvl_printk(0, KERN_INFO,
"Password accepted; seclvl reduced to 0.\n");
seclvl = 0;
len = count;
out:
- free_page((unsigned long)page);
+ kfree (p);
return len;
}
@@ -295,13 +288,11 @@
*/
static int seclvl_ptrace(struct task_struct *parent, struct task_struct *child)
{
- if (seclvl >= 0) {
- if (child->pid == 1) {
- seclvl_printk(1, KERN_WARNING, "Attempt to ptrace "
- "the init process dissallowed in "
- "secure level %d\n", seclvl);
- return -EPERM;
- }
+ if (seclvl >= 0 && child->pid == 1) {
+ seclvl_printk(1, KERN_WARNING, "Attempt to ptrace "
+ "the init process dissallowed in "
+ "secure level %d\n", seclvl);
+ return -EPERM;
}
return 0;
}
@@ -312,55 +303,54 @@
*/
static int seclvl_capable(struct task_struct *tsk, int cap)
{
+ int rc = 0;
+
/* init can do anything it wants */
if (tsk->pid == 1)
return 0;
- switch (seclvl) {
- case 2:
- /* fall through */
- case 1:
- if (cap == CAP_LINUX_IMMUTABLE) {
+ if (seclvl > 0) {
+ rc = -EPERM;
+
+ if (cap == CAP_LINUX_IMMUTABLE)
seclvl_printk(1, KERN_WARNING, "Attempt to modify "
"the IMMUTABLE and/or APPEND extended "
"attribute on a file with the IMMUTABLE "
"and/or APPEND extended attribute set "
"denied in seclvl [%d]\n", seclvl);
- return -EPERM;
- } else if (cap == CAP_SYS_RAWIO) { // Somewhat broad...
+ else if (cap == CAP_SYS_RAWIO)
seclvl_printk(1, KERN_WARNING, "Attempt to perform "
"raw I/O while in secure level [%d] "
"denied\n", seclvl);
- return -EPERM;
- } else if (cap == CAP_NET_ADMIN) {
+ else if (cap == CAP_NET_ADMIN)
seclvl_printk(1, KERN_WARNING, "Attempt to perform "
"network administrative task while "
"in secure level [%d] denied\n", seclvl);
- return -EPERM;
- } else if (cap == CAP_SETUID) {
+ else if (cap == CAP_SETUID)
seclvl_printk(1, KERN_WARNING, "Attempt to setuid "
"while in secure level [%d] denied\n",
seclvl);
- return -EPERM;
- } else if (cap == CAP_SETGID) {
+ else if (cap == CAP_SETGID)
seclvl_printk(1, KERN_WARNING, "Attempt to setgid "
"while in secure level [%d] denied\n",
seclvl);
- } else if (cap == CAP_SYS_MODULE) {
+ else if (cap == CAP_SYS_MODULE)
seclvl_printk(1, KERN_WARNING, "Attempt to perform "
"a module operation while in secure "
"level [%d] denied\n", seclvl);
- return -EPERM;
- }
- break;
- default:
- break;
+ else
+ rc = 0;
}
- /* from dummy.c */
- if (cap_is_fs_cap(cap) ? tsk->fsuid == 0 : tsk->euid == 0)
- return 0; /* capability granted */
- seclvl_printk(1, KERN_WARNING, "Capability denied\n");
- return -EPERM; /* capability denied */
+
+ if (!rc) {
+ if (!(cap_is_fs_cap(cap) ? tsk->fsuid == 0 : tsk->euid == 0))
+ rc = -EPERM;
+ }
+
+ if (rc)
+ seclvl_printk(1, KERN_WARNING, "Capability denied\n");
+
+ return rc;
}
/**
@@ -466,12 +456,9 @@
static void seclvl_file_free_security(struct file *filp)
{
struct dentry *dentry = filp->f_dentry;
- struct inode *inode = NULL;
- if (dentry) {
- inode = dentry->d_inode;
- seclvl_bd_release(inode);
- }
+ if (dentry)
+ seclvl_bd_release(dentry->d_inode);
}
/**
@@ -479,9 +466,7 @@
*/
static int seclvl_umount(struct vfsmount *mnt, int flags)
{
- if (current->pid == 1)
- return 0;
- if (seclvl == 2) {
+ if (current->pid != 1 && seclvl == 2) {
seclvl_printk(1, KERN_WARNING, "Attempt to unmount in secure "
"level %d\n", seclvl);
return -EPERM;
@@ -505,8 +490,9 @@
static int processPassword(void)
{
int rc = 0;
- hashedPassword[0] = '\0';
if (*passwd) {
+ char *p;
+
if (*sha1_passwd) {
seclvl_printk(0, KERN_ERR, "Error: Both "
"passwd and sha1_passwd "
@@ -514,12 +500,16 @@
"exclusive.\n");
return -EINVAL;
}
- if ((rc = plaintext_to_sha1(hashedPassword, passwd,
- strlen(passwd)))) {
+
+ p = kstrdup(passwd, GFP_KERNEL);
+ if (p == NULL)
+ return -ENOMEM;
+
+ if ((rc = plaintext_to_sha1(hashedPassword, p, strlen(p))))
seclvl_printk(0, KERN_ERR, "Error: SHA1 support not "
"in kernel\n");
- return rc;
- }
+
+ kfree (p);
/* All static data goes to the BSS, which zero's the
* plaintext password out for us. */
} else if (*sha1_passwd) { // Base 16
@@ -542,7 +532,7 @@
sha1_passwd[i + 2] = tmp;
}
}
- return 0;
+ return rc;
}
/**
@@ -552,28 +542,46 @@
static int seclvlfs_register(void)
{
+ int rc = 0;
+
dir_ino = securityfs_create_dir("seclvl", NULL);
- if (!dir_ino)
- return -EFAULT;
+
+ if (IS_ERR(dir_ino))
+ return PTR_ERR(dir_ino);
seclvl_ino = securityfs_create_file("seclvl", S_IRUGO | S_IWUSR,
dir_ino, &seclvl, &seclvl_file_ops);
- if (!seclvl_ino)
+ if (IS_ERR(seclvl_ino)) {
+ rc = PTR_ERR(seclvl_ino);
goto out_deldir;
+ }
if (*passwd || *sha1_passwd) {
passwd_ino = securityfs_create_file("passwd", S_IRUGO | S_IWUSR,
dir_ino, NULL, &passwd_file_ops);
- if (!passwd_ino)
+ if (IS_ERR(passwd_ino)) {
+ rc = PTR_ERR(passwd_ino);
goto out_delf;
+ }
}
- return 0;
+ return rc;
-out_deldir:
- securityfs_remove(dir_ino);
out_delf:
securityfs_remove(seclvl_ino);
- return -EFAULT;
+out_deldir:
+ securityfs_remove(dir_ino);
+
+ return rc;
+}
+
+static void seclvlfs_unregister(void)
+{
+ securityfs_remove(seclvl_ino);
+
+ if (*passwd || *sha1_passwd)
+ securityfs_remove(passwd_ino);
+
+ securityfs_remove(dir_ino);
}
/**
@@ -582,6 +590,8 @@
static int __init seclvl_init(void)
{
int rc = 0;
+ static char once;
+
if (verbosity < 0 || verbosity > 1) {
printk(KERN_ERR "Error: bad verbosity [%d]; only 0 or 1 "
"are valid values\n", verbosity);
@@ -600,6 +610,11 @@
"module parameter(s): rc = [%d]\n", rc);
goto exit;
}
+
+ if ((rc = seclvlfs_register())) {
+ seclvl_printk(0, KERN_ERR, "Error registering with sysfs\n");
+ goto exit;
+ }
/* register ourselves with the security framework */
if (register_security(&seclvl_ops)) {
seclvl_printk(0, KERN_ERR,
@@ -611,20 +626,24 @@
seclvl_printk(0, KERN_ERR, "seclvl: Failure "
"registering with primary security "
"module.\n");
+ seclvlfs_unregister();
goto exit;
} /* if primary module registered */
secondary = 1;
} /* if we registered ourselves with the security framework */
- if ((rc = seclvlfs_register())) {
- seclvl_printk(0, KERN_ERR, "Error registering with sysfs\n");
- goto exit;
- }
+
seclvl_printk(0, KERN_INFO, "seclvl: Successfully initialized.\n");
+
+ if (once) {
+ once = 1;
+ seclvl_printk(0, KERN_INFO, "seclvl is going away. It has been "
+ "buggy for ages. Also, be warned that "
+ "Securelevels are useless.");
+ }
exit:
- if (rc) {
+ if (rc)
printk(KERN_ERR "seclvl: Error during initialization: rc = "
"[%d]\n", rc);
- }
return rc;
}
@@ -633,17 +652,14 @@
*/
static void __exit seclvl_exit(void)
{
- securityfs_remove(seclvl_ino);
- if (*passwd || *sha1_passwd)
- securityfs_remove(passwd_ino);
- securityfs_remove(dir_ino);
- if (secondary == 1) {
+ seclvlfs_unregister();
+
+ if (secondary)
mod_unreg_security(MY_NAME, &seclvl_ops);
- } else if (unregister_security(&seclvl_ops)) {
+ else if (unregister_security(&seclvl_ops))
seclvl_printk(0, KERN_INFO,
"seclvl: Failure unregistering with the "
"kernel\n");
- }
}
module_init(seclvl_init);
diff --git a/sound/oss/ac97_codec.c b/sound/oss/ac97_codec.c
index fd25aca..972327c 100644
--- a/sound/oss/ac97_codec.c
+++ b/sound/oss/ac97_codec.c
@@ -55,7 +55,7 @@
#include <linux/pci.h>
#include <linux/ac97_codec.h>
#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#define CODEC_ID_BUFSZ 14
@@ -304,7 +304,7 @@
static LIST_HEAD(codecs);
static LIST_HEAD(codec_drivers);
-static DECLARE_MUTEX(codec_sem);
+static DEFINE_MUTEX(codec_mutex);
/* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows
about that given mixer, and should be holding a spinlock for the card */
@@ -769,9 +769,9 @@
{
/* Remove from the list first, we don't want to be
"rediscovered" */
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_del(&codec->list);
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
/*
* The driver needs to deal with internal
* locking to avoid accidents here.
@@ -889,7 +889,7 @@
* callbacks.
*/
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_add(&codec->list, &codecs);
list_for_each(l, &codec_drivers) {
@@ -903,7 +903,7 @@
}
}
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
return 1;
}
@@ -1439,7 +1439,7 @@
struct list_head *l;
struct ac97_codec *c;
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
INIT_LIST_HEAD(&driver->list);
list_add(&driver->list, &codec_drivers);
@@ -1452,7 +1452,7 @@
continue;
c->driver = driver;
}
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
return 0;
}
@@ -1471,7 +1471,7 @@
struct list_head *l;
struct ac97_codec *c;
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_del_init(&driver->list);
list_for_each(l, &codecs)
@@ -1483,7 +1483,7 @@
}
}
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
}
EXPORT_SYMBOL_GPL(ac97_unregister_driver);
@@ -1494,14 +1494,14 @@
struct ac97_codec *c;
if (remove_master) {
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_for_each(l, &codecs)
{
c = list_entry(l, struct ac97_codec, list);
if (supported_mixer(c, SOUND_MIXER_PHONEOUT))
c->supported_mixers &= ~SOUND_MASK_PHONEOUT;
}
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
} else
ac97_hw[SOUND_MIXER_PHONEOUT].offset = AC97_MASTER_VOL_STEREO;
diff --git a/sound/oss/aci.c b/sound/oss/aci.c
index 3928c28..3bfac37 100644
--- a/sound/oss/aci.c
+++ b/sound/oss/aci.c
@@ -56,7 +56,8 @@
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/slab.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/uaccess.h>
#include "sound_config.h"
@@ -79,7 +80,7 @@
* checked with ACI versions prior to 0xb0 */
static int mixer_device;
-static struct semaphore aci_sem;
+static struct mutex aci_mutex;
#ifdef MODULE
static int reset;
@@ -212,7 +213,7 @@
int write[] = {write1, write2, write3};
int read = -EINTR, i;
- if (down_interruptible(&aci_sem))
+ if (mutex_lock_interruptible(&aci_mutex))
goto out;
for (i=0; i<3; i++) {
@@ -227,7 +228,7 @@
}
read = aci_rawread();
-out_up: up(&aci_sem);
+out_up: mutex_unlock(&aci_mutex);
out: return read;
}
@@ -603,7 +604,7 @@
char *boardname;
int i, rc = -EBUSY;
- init_MUTEX(&aci_sem);
+ mutex_init(&aci_mutex);
outb(0xE3, 0xf8f); /* Write MAD16 password */
aci_port = (inb(0xf90) & 0x10) ?
diff --git a/sound/oss/ad1889.c b/sound/oss/ad1889.c
index a0d73f3..54dabf8 100644
--- a/sound/oss/ad1889.c
+++ b/sound/oss/ad1889.c
@@ -38,6 +38,7 @@
#include <linux/ac97_codec.h>
#include <linux/sound.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
#include <asm/delay.h>
#include <asm/io.h>
@@ -238,7 +239,7 @@
for (i = 0; i < AD_MAX_STATES; i++) {
dev->state[i].card = dev;
- init_MUTEX(&dev->state[i].sem);
+ mutex_init(&dev->state[i].mutex);
init_waitqueue_head(&dev->state[i].dmabuf.wait);
}
@@ -461,7 +462,7 @@
ssize_t ret = 0;
DECLARE_WAITQUEUE(wait, current);
- down(&state->sem);
+ mutex_lock(&state->mutex);
#if 0
if (dmabuf->mapped) {
ret = -ENXIO;
@@ -546,7 +547,7 @@
err2:
remove_wait_queue(&state->dmabuf.wait, &wait);
err1:
- up(&state->sem);
+ mutex_unlock(&state->mutex);
return ret;
}
diff --git a/sound/oss/ad1889.h b/sound/oss/ad1889.h
index e04affc..861b321 100644
--- a/sound/oss/ad1889.h
+++ b/sound/oss/ad1889.h
@@ -100,7 +100,7 @@
unsigned int subdivision;
} dmabuf;
- struct semaphore sem;
+ struct mutex mutex;
} ad1889_state_t;
typedef struct ad1889_dev {
diff --git a/sound/oss/ali5455.c b/sound/oss/ali5455.c
index 9c9e6c0..62bb936 100644
--- a/sound/oss/ali5455.c
+++ b/sound/oss/ali5455.c
@@ -64,6 +64,8 @@
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
#ifndef PCI_DEVICE_ID_ALI_5455
@@ -234,7 +236,7 @@
struct ali_card *card; /* Card info */
/* single open lock mechanism, only used for recording */
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
/* file mode */
@@ -2807,7 +2809,7 @@
state->card = card;
state->magic = ALI5455_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
file->private_data = state;
dmabuf->trigger = 0;
/* allocate hardware channels */
@@ -3359,7 +3361,7 @@
state->card = card;
state->magic = ALI5455_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
dmabuf->fmt = ALI5455_FMT_STEREO | ALI5455_FMT_16BIT;
dmabuf->trigger = PCM_ENABLE_OUTPUT;
ali_set_dac_rate(state, 48000);
diff --git a/sound/oss/au1000.c b/sound/oss/au1000.c
index c407de8..fe54de2 100644
--- a/sound/oss/au1000.c
+++ b/sound/oss/au1000.c
@@ -68,6 +68,8 @@
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/mach-au1x00/au1000.h>
@@ -120,8 +122,8 @@
int no_vra; // do not use VRA
spinlock_t lock;
- struct semaphore open_sem;
- struct semaphore sem;
+ struct mutex open_mutex;
+ struct mutex sem;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1106,7 +1108,7 @@
count *= db->cnt_factor;
- down(&s->sem);
+ mutex_lock(&s->sem);
add_wait_queue(&db->wait, &wait);
while (count > 0) {
@@ -1125,14 +1127,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
}
} while (avail <= 0);
@@ -1159,7 +1161,7 @@
} // while (count > 0)
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&db->wait, &wait);
set_current_state(TASK_RUNNING);
@@ -1187,7 +1189,7 @@
count *= db->cnt_factor;
- down(&s->sem);
+ mutex_lock(&s->sem);
add_wait_queue(&db->wait, &wait);
while (count > 0) {
@@ -1204,14 +1206,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
}
} while (avail <= 0);
@@ -1240,7 +1242,7 @@
} // while (count > 0)
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&db->wait, &wait);
set_current_state(TASK_RUNNING);
@@ -1298,7 +1300,7 @@
dbg("%s", __FUNCTION__);
lock_kernel();
- down(&s->sem);
+ mutex_lock(&s->sem);
if (vma->vm_flags & VM_WRITE)
db = &s->dma_dac;
else if (vma->vm_flags & VM_READ)
@@ -1324,7 +1326,7 @@
vma->vm_flags &= ~VM_IO;
db->mapped = 1;
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
unlock_kernel();
return ret;
}
@@ -1829,21 +1831,21 @@
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
stop_dac(s);
@@ -1879,8 +1881,8 @@
}
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
- init_MUTEX(&s->sem);
+ mutex_unlock(&s->open_mutex);
+ mutex_init(&s->sem);
return nonseekable_open(inode, file);
}
@@ -1896,7 +1898,7 @@
lock_kernel();
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
@@ -1906,7 +1908,7 @@
dealloc_dmabuf(s, &s->dma_adc);
}
s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -1996,7 +1998,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->codec.private_data = s;
s->codec.id = 0;
diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index bdee050..6a4956b 100644
--- a/sound/oss/au1550_ac97.c
+++ b/sound/oss/au1550_ac97.c
@@ -52,6 +52,8 @@
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/hardirq.h>
@@ -90,8 +92,8 @@
int no_vra; /* do not use VRA */
spinlock_t lock;
- struct semaphore open_sem;
- struct semaphore sem;
+ struct mutex open_mutex;
+ struct mutex sem;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1044,7 +1046,7 @@
count *= db->cnt_factor;
- down(&s->sem);
+ mutex_lock(&s->sem);
add_wait_queue(&db->wait, &wait);
while (count > 0) {
@@ -1064,14 +1066,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
}
} while (avail <= 0);
@@ -1099,7 +1101,7 @@
} /* while (count > 0) */
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&db->wait, &wait);
set_current_state(TASK_RUNNING);
@@ -1125,7 +1127,7 @@
count *= db->cnt_factor;
- down(&s->sem);
+ mutex_lock(&s->sem);
add_wait_queue(&db->wait, &wait);
while (count > 0) {
@@ -1143,14 +1145,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
}
} while (avail <= 0);
@@ -1196,7 +1198,7 @@
} /* while (count > 0) */
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&db->wait, &wait);
set_current_state(TASK_RUNNING);
@@ -1253,7 +1255,7 @@
int ret = 0;
lock_kernel();
- down(&s->sem);
+ mutex_lock(&s->sem);
if (vma->vm_flags & VM_WRITE)
db = &s->dma_dac;
else if (vma->vm_flags & VM_READ)
@@ -1279,7 +1281,7 @@
vma->vm_flags &= ~VM_IO;
db->mapped = 1;
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
unlock_kernel();
return ret;
}
@@ -1790,21 +1792,21 @@
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
stop_dac(s);
@@ -1840,8 +1842,8 @@
}
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
- init_MUTEX(&s->sem);
+ mutex_unlock(&s->open_mutex);
+ mutex_init(&s->sem);
return 0;
}
@@ -1858,7 +1860,7 @@
lock_kernel();
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
kfree(s->dma_dac.rawbuf);
@@ -1870,7 +1872,7 @@
s->dma_adc.rawbuf = NULL;
}
s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -1902,7 +1904,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->codec = ac97_alloc_codec();
diff --git a/sound/oss/btaudio.c b/sound/oss/btaudio.c
index 4007a56..bfe3b53 100644
--- a/sound/oss/btaudio.c
+++ b/sound/oss/btaudio.c
@@ -32,6 +32,8 @@
#include <linux/soundcard.h>
#include <linux/slab.h>
#include <linux/kdev_t.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -108,7 +110,7 @@
/* locking */
int users;
- struct semaphore lock;
+ struct mutex lock;
/* risc instructions */
unsigned int risc_size;
@@ -440,7 +442,7 @@
static int btaudio_dsp_open(struct inode *inode, struct file *file,
struct btaudio *bta, int analog)
{
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if (bta->users)
goto busy;
bta->users++;
@@ -452,11 +454,11 @@
bta->read_count = 0;
bta->sampleshift = 0;
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return 0;
busy:
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return -EBUSY;
}
@@ -496,11 +498,11 @@
{
struct btaudio *bta = file->private_data;
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if (bta->recording)
stop_recording(bta);
bta->users--;
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
return 0;
}
@@ -513,7 +515,7 @@
DECLARE_WAITQUEUE(wait, current);
add_wait_queue(&bta->readq, &wait);
- down(&bta->lock);
+ mutex_lock(&bta->lock);
while (swcount > 0) {
if (0 == bta->read_count) {
if (!bta->recording) {
@@ -528,10 +530,10 @@
ret = -EAGAIN;
break;
}
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
current->state = TASK_INTERRUPTIBLE;
schedule();
- down(&bta->lock);
+ mutex_lock(&bta->lock);
if(signal_pending(current)) {
if (0 == ret)
ret = -EINTR;
@@ -604,7 +606,7 @@
if (bta->read_offset == bta->buf_size)
bta->read_offset = 0;
}
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
remove_wait_queue(&bta->readq, &wait);
current->state = TASK_RUNNING;
return ret;
@@ -651,10 +653,10 @@
bta->decimation = 0;
}
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
/* fall through */
case SOUND_PCM_READ_RATE:
@@ -716,10 +718,10 @@
else
bta->bits = 16;
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
start_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
}
if (debug)
@@ -736,9 +738,9 @@
case SNDCTL_DSP_RESET:
if (bta->recording) {
- down(&bta->lock);
+ mutex_lock(&bta->lock);
stop_recording(bta);
- up(&bta->lock);
+ mutex_unlock(&bta->lock);
}
return 0;
case SNDCTL_DSP_GETBLKSIZE:
@@ -941,7 +943,7 @@
if (rate)
bta->rate = rate;
- init_MUTEX(&bta->lock);
+ mutex_init(&bta->lock);
init_waitqueue_head(&bta->readq);
if (-1 != latency) {
diff --git a/sound/oss/cmpci.c b/sound/oss/cmpci.c
index 7cfbb08..1fbd513 100644
--- a/sound/oss/cmpci.c
+++ b/sound/oss/cmpci.c
@@ -138,6 +138,8 @@
#endif
#ifdef CONFIG_SOUND_CMPCI_JOYSTICK
#include <linux/gameport.h>
+#include <linux/mutex.h>
+
#endif
/* --------------------------------------------------------------------- */
@@ -392,7 +394,7 @@
unsigned char fmt, enable;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -2825,21 +2827,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
if (file->f_mode & FMODE_READ) {
s->status &= ~DO_BIGENDIAN_R;
@@ -2867,7 +2869,7 @@
}
set_fmt(s, fmtm, fmts);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2879,7 +2881,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
@@ -2903,7 +2905,7 @@
s->status &= ~DO_BIGENDIAN_R;
}
s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -3080,7 +3082,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = CM_MAGIC;
s->dev = pcidev;
diff --git a/sound/oss/cs4281/cs4281m.c b/sound/oss/cs4281/cs4281m.c
index 0720365..0004442 100644
--- a/sound/oss/cs4281/cs4281m.c
+++ b/sound/oss/cs4281/cs4281m.c
@@ -245,9 +245,9 @@
void *tmpbuff; // tmp buffer for sample conversions
unsigned ena;
spinlock_t lock;
- struct semaphore open_sem;
- struct semaphore open_sem_adc;
- struct semaphore open_sem_dac;
+ struct mutex open_sem;
+ struct mutex open_sem_adc;
+ struct mutex open_sem_dac;
mode_t open_mode;
wait_queue_head_t open_wait;
wait_queue_head_t open_wait_adc;
@@ -3598,20 +3598,20 @@
if (file->f_mode & FMODE_WRITE) {
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
s->open_mode &= ~FMODE_WRITE;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
wake_up(&s->open_wait_dac);
}
if (file->f_mode & FMODE_READ) {
drain_adc(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
s->open_mode &= ~FMODE_READ;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
wake_up(&s->open_wait_adc);
}
return 0;
@@ -3651,33 +3651,33 @@
return -ENODEV;
}
if (file->f_mode & FMODE_WRITE) {
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
while (s->open_mode & FMODE_WRITE) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
return -EBUSY;
}
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
interruptible_sleep_on(&s->open_wait_dac);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
}
}
if (file->f_mode & FMODE_READ) {
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
while (s->open_mode & FMODE_READ) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
return -EBUSY;
}
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
interruptible_sleep_on(&s->open_wait_adc);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
}
}
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
@@ -3691,7 +3691,7 @@
s->ena &= ~FMODE_READ;
s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags =
s->dma_adc.subdivision = 0;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
if (prog_dmabuf_adc(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -3711,7 +3711,7 @@
s->ena &= ~FMODE_WRITE;
s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags =
s->dma_dac.subdivision = 0;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
if (prog_dmabuf_dac(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -3978,17 +3978,17 @@
VALIDATE_STATE(s);
file->private_data = s;
// wait for device to become free
- down(&s->open_sem);
+ mutex_lock(&s->open_sem);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_sem);
return -EBUSY;
}
- up(&s->open_sem);
+ mutex_unlock(&s->open_sem);
interruptible_sleep_on(&s->open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_sem);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -4018,7 +4018,7 @@
(file->
f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ |
FMODE_MIDI_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_sem);
return nonseekable_open(inode, file);
}
@@ -4057,7 +4057,7 @@
remove_wait_queue(&s->midi.owait, &wait);
current->state = TASK_RUNNING;
}
- down(&s->open_sem);
+ mutex_lock(&s->open_sem);
s->open_mode &=
(~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ |
FMODE_MIDI_WRITE);
@@ -4067,7 +4067,7 @@
del_timer(&s->midi.timer);
}
spin_unlock_irqrestore(&s->lock, flags);
- up(&s->open_sem);
+ mutex_unlock(&s->open_sem);
wake_up(&s->open_wait);
return 0;
}
@@ -4300,9 +4300,9 @@
init_waitqueue_head(&s->open_wait_dac);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
- init_MUTEX(&s->open_sem_adc);
- init_MUTEX(&s->open_sem_dac);
+ mutex_init(&s->open_sem);
+ mutex_init(&s->open_sem_adc);
+ mutex_init(&s->open_sem_dac);
spin_lock_init(&s->lock);
s->pBA0phys = pci_resource_start(pcidev, 0);
s->pBA1phys = pci_resource_start(pcidev, 1);
diff --git a/sound/oss/cs46xx.c b/sound/oss/cs46xx.c
index 58e25c8..53881bc 100644
--- a/sound/oss/cs46xx.c
+++ b/sound/oss/cs46xx.c
@@ -90,6 +90,7 @@
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/ac97_codec.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/dma.h>
@@ -238,7 +239,7 @@
struct cs_card *card; /* Card info */
/* single open lock mechanism, only used for recording */
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
/* file mode */
@@ -297,7 +298,7 @@
unsigned subdivision;
} dmabuf;
/* Guard against mmap/write/read races */
- struct semaphore sem;
+ struct mutex sem;
};
struct cs_card {
@@ -375,7 +376,7 @@
unsigned char ibuf[CS_MIDIINBUF];
unsigned char obuf[CS_MIDIOUTBUF];
mode_t open_mode;
- struct semaphore open_sem;
+ struct mutex open_mutex;
} midi;
struct cs46xx_pm pm;
};
@@ -1428,9 +1429,9 @@
{
int ret;
- down(&state->sem);
+ mutex_lock(&state->sem);
ret = __prog_dmabuf(state);
- up(&state->sem);
+ mutex_unlock(&state->sem);
return ret;
}
@@ -1831,17 +1832,17 @@
file->private_data = card;
/* wait for device to become free */
- down(&card->midi.open_sem);
+ mutex_lock(&card->midi.open_mutex);
while (card->midi.open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&card->midi.open_sem);
+ mutex_unlock(&card->midi.open_mutex);
return -EBUSY;
}
- up(&card->midi.open_sem);
+ mutex_unlock(&card->midi.open_mutex);
interruptible_sleep_on(&card->midi.open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&card->midi.open_sem);
+ mutex_lock(&card->midi.open_mutex);
}
spin_lock_irqsave(&card->midi.lock, flags);
if (!(card->midi.open_mode & (FMODE_READ | FMODE_WRITE))) {
@@ -1859,7 +1860,7 @@
}
spin_unlock_irqrestore(&card->midi.lock, flags);
card->midi.open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
- up(&card->midi.open_sem);
+ mutex_unlock(&card->midi.open_mutex);
return 0;
}
@@ -1891,9 +1892,9 @@
remove_wait_queue(&card->midi.owait, &wait);
current->state = TASK_RUNNING;
}
- down(&card->midi.open_sem);
+ mutex_lock(&card->midi.open_mutex);
card->midi.open_mode &= (~(file->f_mode & (FMODE_READ | FMODE_WRITE)));
- up(&card->midi.open_sem);
+ mutex_unlock(&card->midi.open_mutex);
wake_up(&card->midi.open_wait);
return 0;
}
@@ -2081,7 +2082,7 @@
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
- down(&state->sem);
+ mutex_lock(&state->sem);
if (!dmabuf->ready && (ret = __prog_dmabuf(state)))
goto out2;
@@ -2114,13 +2115,13 @@
if (!ret) ret = -EAGAIN;
goto out;
}
- up(&state->sem);
+ mutex_unlock(&state->sem);
schedule();
if (signal_pending(current)) {
if(!ret) ret = -ERESTARTSYS;
goto out;
}
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped)
{
if(!ret)
@@ -2155,7 +2156,7 @@
out:
remove_wait_queue(&state->dmabuf.wait, &wait);
out2:
- up(&state->sem);
+ mutex_unlock(&state->sem);
set_current_state(TASK_RUNNING);
CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4,
printk("cs46xx: cs_read()- %zd\n",ret) );
@@ -2184,7 +2185,7 @@
return -EFAULT;
dmabuf = &state->dmabuf;
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped)
{
ret = -ENXIO;
@@ -2240,13 +2241,13 @@
if (!ret) ret = -EAGAIN;
goto out;
}
- up(&state->sem);
+ mutex_unlock(&state->sem);
schedule();
if (signal_pending(current)) {
if(!ret) ret = -ERESTARTSYS;
goto out;
}
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped)
{
if(!ret)
@@ -2278,7 +2279,7 @@
start_dac(state);
}
out:
- up(&state->sem);
+ mutex_unlock(&state->sem);
remove_wait_queue(&state->dmabuf.wait, &wait);
set_current_state(TASK_RUNNING);
@@ -2411,7 +2412,7 @@
goto out;
}
- down(&state->sem);
+ mutex_lock(&state->sem);
dmabuf = &state->dmabuf;
if (cs4x_pgoff(vma) != 0)
{
@@ -2438,7 +2439,7 @@
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_mmap()-\n") );
out:
- up(&state->sem);
+ mutex_unlock(&state->sem);
return ret;
}
@@ -3200,7 +3201,7 @@
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
- init_MUTEX(&state->sem);
+ mutex_init(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if(dmabuf->pbuf==NULL)
@@ -3241,10 +3242,10 @@
state->virt = 0;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
file->private_data = card;
- down(&state->open_sem);
+ mutex_lock(&state->open_mutex);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
@@ -3260,7 +3261,7 @@
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_READ;
- up(&state->open_sem);
+ mutex_unlock(&state->open_mutex);
}
if(file->f_mode & FMODE_WRITE)
{
@@ -3271,7 +3272,7 @@
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
- init_MUTEX(&state->sem);
+ mutex_init(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if(dmabuf->pbuf==NULL)
@@ -3312,10 +3313,10 @@
state->virt = 1;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
file->private_data = card;
- down(&state->open_sem);
+ mutex_lock(&state->open_mutex);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
@@ -3331,7 +3332,7 @@
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_WRITE;
- up(&state->open_sem);
+ mutex_unlock(&state->open_mutex);
if((ret = prog_dmabuf(state)))
return ret;
}
@@ -3363,14 +3364,14 @@
cs_clear_tail(state);
drain_dac(state, file->f_flags & O_NONBLOCK);
/* stop DMA state machine and free DMA buffers/channels */
- down(&state->open_sem);
+ mutex_lock(&state->open_mutex);
stop_dac(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
- /* we're covered by the open_sem */
- up(&state->open_sem);
+ /* we're covered by the open_mutex */
+ mutex_unlock(&state->open_mutex);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
@@ -3395,14 +3396,14 @@
{
CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_READ\n") );
dmabuf = &state->dmabuf;
- down(&state->open_sem);
+ mutex_lock(&state->open_mutex);
stop_adc(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
- /* we're covered by the open_sem */
- up(&state->open_sem);
+ /* we're covered by the open_mutex */
+ mutex_unlock(&state->open_mutex);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
@@ -5507,7 +5508,7 @@
}
init_waitqueue_head(&card->midi.open_wait);
- init_MUTEX(&card->midi.open_sem);
+ mutex_init(&card->midi.open_mutex);
init_waitqueue_head(&card->midi.iwait);
init_waitqueue_head(&card->midi.owait);
cs461x_pokeBA0(card, BA0_MIDCR, MIDCR_MRST);
diff --git a/sound/oss/dmasound/dmasound_awacs.c b/sound/oss/dmasound/dmasound_awacs.c
index 74f9756..a173751 100644
--- a/sound/oss/dmasound/dmasound_awacs.c
+++ b/sound/oss/dmasound/dmasound_awacs.c
@@ -80,7 +80,7 @@
#include <linux/kmod.h>
#include <linux/interrupt.h>
#include <linux/input.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#ifdef CONFIG_ADB_CUDA
#include <linux/cuda.h>
#endif
@@ -130,7 +130,7 @@
static char awacs_name[64];
static int awacs_revision;
static int awacs_sleeping;
-static DECLARE_MUTEX(dmasound_sem);
+static DEFINE_MUTEX(dmasound_mutex);
static int sound_device_id; /* exists after iMac revA */
static int hw_can_byteswap = 1 ; /* most pmac sound h/w can */
@@ -312,11 +312,11 @@
extern int daca_leave_sleep(void);
#define TRY_LOCK() \
- if ((rc = down_interruptible(&dmasound_sem)) != 0) \
+ if ((rc = mutex_lock_interruptible(&dmasound_mutex)) != 0) \
return rc;
-#define LOCK() down(&dmasound_sem);
+#define LOCK() mutex_lock(&dmasound_mutex);
-#define UNLOCK() up(&dmasound_sem);
+#define UNLOCK() mutex_unlock(&dmasound_mutex);
/* We use different versions that the ones provided in dmasound.h
*
diff --git a/sound/oss/emu10k1/hwaccess.h b/sound/oss/emu10k1/hwaccess.h
index 104223a..85e27bd 100644
--- a/sound/oss/emu10k1/hwaccess.h
+++ b/sound/oss/emu10k1/hwaccess.h
@@ -181,7 +181,7 @@
struct emu10k1_mpuout *mpuout;
struct emu10k1_mpuin *mpuin;
- struct semaphore open_sem;
+ struct mutex open_sem;
mode_t open_mode;
wait_queue_head_t open_wait;
diff --git a/sound/oss/emu10k1/main.c b/sound/oss/emu10k1/main.c
index 23241cb..0cd44a6 100644
--- a/sound/oss/emu10k1/main.c
+++ b/sound/oss/emu10k1/main.c
@@ -1320,7 +1320,7 @@
card->is_aps = (subsysvid == EMU_APS_SUBID);
spin_lock_init(&card->lock);
- init_MUTEX(&card->open_sem);
+ mutex_init(&card->open_sem);
card->open_mode = 0;
init_waitqueue_head(&card->open_wait);
diff --git a/sound/oss/emu10k1/midi.c b/sound/oss/emu10k1/midi.c
index b40b5f9..959a967 100644
--- a/sound/oss/emu10k1/midi.c
+++ b/sound/oss/emu10k1/midi.c
@@ -110,21 +110,21 @@
#endif
/* Wait for device to become free */
- down(&card->open_sem);
+ mutex_lock(&card->open_sem);
while (card->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&card->open_sem);
+ mutex_unlock(&card->open_sem);
return -EBUSY;
}
- up(&card->open_sem);
+ mutex_unlock(&card->open_sem);
interruptible_sleep_on(&card->open_wait);
if (signal_pending(current)) {
return -ERESTARTSYS;
}
- down(&card->open_sem);
+ mutex_lock(&card->open_sem);
}
if ((midi_dev = (struct emu10k1_mididevice *) kmalloc(sizeof(*midi_dev), GFP_KERNEL)) == NULL)
@@ -183,7 +183,7 @@
card->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&card->open_sem);
+ mutex_unlock(&card->open_sem);
return nonseekable_open(inode, file);
}
@@ -234,9 +234,9 @@
kfree(midi_dev);
- down(&card->open_sem);
+ mutex_lock(&card->open_sem);
card->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE));
- up(&card->open_sem);
+ mutex_unlock(&card->open_sem);
wake_up_interruptible(&card->open_wait);
unlock_kernel();
diff --git a/sound/oss/es1370.c b/sound/oss/es1370.c
index ae55c53..094f569 100644
--- a/sound/oss/es1370.c
+++ b/sound/oss/es1370.c
@@ -157,6 +157,7 @@
#include <linux/gameport.h>
#include <linux/wait.h>
#include <linux/dma-mapping.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/page.h>
@@ -346,7 +347,7 @@
unsigned sctrl;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -393,7 +394,7 @@
struct gameport *gameport;
#endif
- struct semaphore sem;
+ struct mutex mutex;
};
/* --------------------------------------------------------------------- */
@@ -1159,7 +1160,7 @@
return -ENXIO;
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
- down(&s->sem);
+ mutex_lock(&s->mutex);
if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
goto out;
@@ -1183,14 +1184,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->mutex);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
- down(&s->sem);
+ mutex_lock(&s->mutex);
if (s->dma_adc.mapped)
{
ret = -ENXIO;
@@ -1215,7 +1216,7 @@
start_adc(s);
}
out:
- up(&s->sem);
+ mutex_unlock(&s->mutex);
remove_wait_queue(&s->dma_adc.wait, &wait);
set_current_state(TASK_RUNNING);
return ret;
@@ -1235,7 +1236,7 @@
return -ENXIO;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
- down(&s->sem);
+ mutex_lock(&s->mutex);
if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
goto out;
ret = 0;
@@ -1263,14 +1264,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->mutex);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
- down(&s->sem);
+ mutex_lock(&s->mutex);
if (s->dma_dac2.mapped)
{
ret = -ENXIO;
@@ -1296,7 +1297,7 @@
start_dac2(s);
}
out:
- up(&s->sem);
+ mutex_unlock(&s->mutex);
remove_wait_queue(&s->dma_dac2.wait, &wait);
set_current_state(TASK_RUNNING);
return ret;
@@ -1348,7 +1349,7 @@
VALIDATE_STATE(s);
lock_kernel();
- down(&s->sem);
+ mutex_lock(&s->mutex);
if (vma->vm_flags & VM_WRITE) {
if ((ret = prog_dmabuf_dac2(s)) != 0) {
goto out;
@@ -1380,7 +1381,7 @@
}
db->mapped = 1;
out:
- up(&s->sem);
+ mutex_unlock(&s->mutex);
unlock_kernel();
return ret;
}
@@ -1752,21 +1753,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
@@ -1793,8 +1794,8 @@
outl(s->ctrl, s->io+ES1370_REG_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
- init_MUTEX(&s->sem);
+ mutex_unlock(&s->open_mutex);
+ mutex_init(&s->mutex);
return nonseekable_open(inode, file);
}
@@ -1806,7 +1807,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac2(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
synchronize_irq(s->irq);
@@ -1818,7 +1819,7 @@
}
s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2198,21 +2199,21 @@
return -EINVAL;
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & FMODE_DAC) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
s->dma_dac1.enabled = 1;
@@ -2227,7 +2228,7 @@
outl(s->ctrl, s->io+ES1370_REG_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= FMODE_DAC;
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2238,12 +2239,12 @@
VALIDATE_STATE(s);
lock_kernel();
drain_dac1(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
stop_dac1(s);
dealloc_dmabuf(s, &s->dma_dac1);
s->open_mode &= ~FMODE_DAC;
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2430,21 +2431,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2465,7 +2466,7 @@
es1370_handle_midi(s);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2499,7 +2500,7 @@
remove_wait_queue(&s->midi.owait, &wait);
set_current_state(TASK_RUNNING);
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2508,7 +2509,7 @@
}
spin_unlock_irqrestore(&s->lock, flags);
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2638,7 +2639,7 @@
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = ES1370_MAGIC;
s->dev = pcidev;
diff --git a/sound/oss/es1371.c b/sound/oss/es1371.c
index 5c697f16..4400c85 100644
--- a/sound/oss/es1371.c
+++ b/sound/oss/es1371.c
@@ -129,6 +129,7 @@
#include <linux/gameport.h>
#include <linux/wait.h>
#include <linux/dma-mapping.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/page.h>
@@ -419,7 +420,7 @@
unsigned dac1rate, dac2rate, adcrate;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -462,7 +463,7 @@
struct gameport *gameport;
#endif
- struct semaphore sem;
+ struct mutex sem;
};
/* --------------------------------------------------------------------- */
@@ -1346,7 +1347,7 @@
return -ENXIO;
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
- down(&s->sem);
+ mutex_lock(&s->sem);
if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
goto out2;
@@ -1370,14 +1371,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
if (s->dma_adc.mapped)
{
ret = -ENXIO;
@@ -1402,7 +1403,7 @@
start_adc(s);
}
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&s->dma_adc.wait, &wait);
set_current_state(TASK_RUNNING);
@@ -1423,7 +1424,7 @@
return -ENXIO;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
- down(&s->sem);
+ mutex_lock(&s->sem);
if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
goto out3;
ret = 0;
@@ -1451,14 +1452,14 @@
ret = -EAGAIN;
goto out;
}
- up(&s->sem);
+ mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
- down(&s->sem);
+ mutex_lock(&s->sem);
if (s->dma_dac2.mapped)
{
ret = -ENXIO;
@@ -1484,7 +1485,7 @@
start_dac2(s);
}
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
out2:
remove_wait_queue(&s->dma_dac2.wait, &wait);
out3:
@@ -1538,7 +1539,7 @@
VALIDATE_STATE(s);
lock_kernel();
- down(&s->sem);
+ mutex_lock(&s->sem);
if (vma->vm_flags & VM_WRITE) {
if ((ret = prog_dmabuf_dac2(s)) != 0) {
@@ -1571,7 +1572,7 @@
}
db->mapped = 1;
out:
- up(&s->sem);
+ mutex_unlock(&s->sem);
unlock_kernel();
return ret;
}
@@ -1938,21 +1939,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
if (file->f_mode & FMODE_READ) {
s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
@@ -1982,8 +1983,8 @@
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
- init_MUTEX(&s->sem);
+ mutex_unlock(&s->open_mutex);
+ mutex_init(&s->sem);
return nonseekable_open(inode, file);
}
@@ -1995,7 +1996,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac2(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
dealloc_dmabuf(s, &s->dma_dac2);
@@ -2005,7 +2006,7 @@
dealloc_dmabuf(s, &s->dma_adc);
}
s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -2377,21 +2378,21 @@
return -EINVAL;
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & FMODE_DAC) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
s->dma_dac1.enabled = 1;
@@ -2405,7 +2406,7 @@
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= FMODE_DAC;
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2416,11 +2417,11 @@
VALIDATE_STATE(s);
lock_kernel();
drain_dac1(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
stop_dac1(s);
dealloc_dmabuf(s, &s->dma_dac1);
s->open_mode &= ~FMODE_DAC;
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -2608,21 +2609,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2643,7 +2644,7 @@
es1371_handle_midi(s);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2676,7 +2677,7 @@
remove_wait_queue(&s->midi.owait, &wait);
set_current_state(TASK_RUNNING);
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2684,7 +2685,7 @@
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
}
spin_unlock_irqrestore(&s->lock, flags);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -2884,7 +2885,7 @@
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = ES1371_MAGIC;
s->dev = pcidev;
diff --git a/sound/oss/esssolo1.c b/sound/oss/esssolo1.c
index 849b59f..78d3e29 100644
--- a/sound/oss/esssolo1.c
+++ b/sound/oss/esssolo1.c
@@ -105,6 +105,8 @@
#include <linux/gameport.h>
#include <linux/wait.h>
#include <linux/dma-mapping.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/page.h>
@@ -191,7 +193,7 @@
unsigned ena;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1581,7 +1583,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
outb(0, s->iobase+6); /* disable DMA */
@@ -1595,7 +1597,7 @@
}
s->open_mode &= ~(FMODE_READ | FMODE_WRITE);
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -1624,21 +1626,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & (FMODE_READ | FMODE_WRITE)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
s->fmt = AFMT_U8;
s->channels = 1;
@@ -1650,7 +1652,7 @@
s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
s->dma_dac.enabled = 1;
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
prog_codec(s);
return nonseekable_open(inode, file);
}
@@ -1911,21 +1913,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -1951,7 +1953,7 @@
}
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -1985,7 +1987,7 @@
remove_wait_queue(&s->midi.owait, &wait);
set_current_state(TASK_RUNNING);
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -1994,7 +1996,7 @@
}
spin_unlock_irqrestore(&s->lock, flags);
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2132,24 +2134,24 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & FMODE_DMFM) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
if (!request_region(s->sbbase, FMSYNTH_EXTENT, "ESS Solo1")) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
printk(KERN_ERR "solo1: FM synth io ports in use, opl3 loaded?\n");
return -EBUSY;
}
@@ -2161,7 +2163,7 @@
outb(5, s->sbbase+2);
outb(1, s->sbbase+3); /* enable OPL3 */
s->open_mode |= FMODE_DMFM;
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2172,7 +2174,7 @@
VALIDATE_STATE(s);
lock_kernel();
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~FMODE_DMFM;
for (regb = 0xb0; regb < 0xb9; regb++) {
outb(regb, s->sbbase);
@@ -2182,7 +2184,7 @@
}
release_region(s->sbbase, FMSYNTH_EXTENT);
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2362,7 +2364,7 @@
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = SOLO1_MAGIC;
s->dev = pcidev;
diff --git a/sound/oss/forte.c b/sound/oss/forte.c
index 8406bc9..0294eec 100644
--- a/sound/oss/forte.c
+++ b/sound/oss/forte.c
@@ -43,6 +43,7 @@
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
+#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -185,7 +186,7 @@
unsigned long iobase;
int irq;
- struct semaphore open_sem; /* Device access */
+ struct mutex open_mutex; /* Device access */
spinlock_t lock; /* State */
spinlock_t ac97_lock;
@@ -1242,13 +1243,13 @@
struct forte_chip *chip = forte; /* FIXME: HACK FROM HELL! */
if (file->f_flags & O_NONBLOCK) {
- if (down_trylock (&chip->open_sem)) {
+ if (!mutex_trylock(&chip->open_mutex)) {
DPRINTK ("%s: returning -EAGAIN\n", __FUNCTION__);
return -EAGAIN;
}
}
else {
- if (down_interruptible (&chip->open_sem)) {
+ if (mutex_lock_interruptible(&chip->open_mutex)) {
DPRINTK ("%s: returning -ERESTARTSYS\n", __FUNCTION__);
return -ERESTARTSYS;
}
@@ -1302,7 +1303,7 @@
spin_unlock_irq (&chip->lock);
}
- up (&chip->open_sem);
+ mutex_unlock(&chip->open_mutex);
return ret;
}
@@ -2011,7 +2012,7 @@
memset (chip, 0, sizeof (struct forte_chip));
chip->pci_dev = pci_dev;
- init_MUTEX(&chip->open_sem);
+ mutex_init(&chip->open_mutex);
spin_lock_init (&chip->lock);
spin_lock_init (&chip->ac97_lock);
diff --git a/sound/oss/hal2.c b/sound/oss/hal2.c
index afe97c4..dd4f59d 100644
--- a/sound/oss/hal2.c
+++ b/sound/oss/hal2.c
@@ -32,6 +32,8 @@
#include <linux/dma-mapping.h>
#include <linux/sound.h>
#include <linux/soundcard.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/sgi/hpc3.h>
@@ -92,7 +94,7 @@
wait_queue_head_t dma_wait;
spinlock_t lock;
- struct semaphore sem;
+ struct mutex sem;
int usecount; /* recording and playback are
* independent */
@@ -1178,7 +1180,7 @@
if (!count)
return 0;
- if (down_interruptible(&adc->sem))
+ if (mutex_lock_interruptible(&adc->sem))
return -EINTR;
if (file->f_flags & O_NONBLOCK) {
err = hal2_get_buffer(hal2, buffer, count);
@@ -1217,7 +1219,7 @@
}
} while (count > 0 && err >= 0);
}
- up(&adc->sem);
+ mutex_unlock(&adc->sem);
return err;
}
@@ -1232,7 +1234,7 @@
if (!count)
return 0;
- if (down_interruptible(&dac->sem))
+ if (mutex_lock_interruptible(&dac->sem))
return -EINTR;
if (file->f_flags & O_NONBLOCK) {
err = hal2_add_buffer(hal2, buf, count);
@@ -1271,7 +1273,7 @@
}
} while (count > 0 && err >= 0);
}
- up(&dac->sem);
+ mutex_unlock(&dac->sem);
return err;
}
@@ -1356,20 +1358,20 @@
if (file->f_mode & FMODE_READ) {
struct hal2_codec *adc = &hal2->adc;
- down(&adc->sem);
+ mutex_lock(&adc->sem);
hal2_stop_adc(hal2);
hal2_free_adc_dmabuf(adc);
adc->usecount--;
- up(&adc->sem);
+ mutex_unlock(&adc->sem);
}
if (file->f_mode & FMODE_WRITE) {
struct hal2_codec *dac = &hal2->dac;
- down(&dac->sem);
+ mutex_lock(&dac->sem);
hal2_sync_dac(hal2);
hal2_free_dac_dmabuf(dac);
dac->usecount--;
- up(&dac->sem);
+ mutex_unlock(&dac->sem);
}
return 0;
@@ -1400,7 +1402,7 @@
codec->pbus.pbusnr = index;
codec->pbus.pbus = &hpc3->pbdma[index];
init_waitqueue_head(&codec->dma_wait);
- init_MUTEX(&codec->sem);
+ mutex_init(&codec->sem);
spin_lock_init(&codec->lock);
}
diff --git a/sound/oss/i810_audio.c b/sound/oss/i810_audio.c
index abc242a..dd2b871 100644
--- a/sound/oss/i810_audio.c
+++ b/sound/oss/i810_audio.c
@@ -100,6 +100,8 @@
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/bitops.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
#define DRIVER_VERSION "1.01"
@@ -331,7 +333,7 @@
struct i810_card *card; /* Card info */
/* single open lock mechanism, only used for recording */
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
/* file mode */
@@ -2597,7 +2599,7 @@
state->card = card;
state->magic = I810_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
file->private_data = state;
dmabuf->trigger = 0;
@@ -3213,7 +3215,7 @@
state->card = card;
state->magic = I810_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
- init_MUTEX(&state->open_sem);
+ mutex_init(&state->open_mutex);
dmabuf->fmt = I810_FMT_STEREO | I810_FMT_16BIT;
dmabuf->trigger = PCM_ENABLE_OUTPUT;
i810_set_spdif_output(state, -1, 0);
diff --git a/sound/oss/ite8172.c b/sound/oss/ite8172.c
index 8fd2f9a..ffcb910 100644
--- a/sound/oss/ite8172.c
+++ b/sound/oss/ite8172.c
@@ -71,6 +71,8 @@
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/uaccess.h>
@@ -304,7 +306,7 @@
unsigned dacrate, adcrate;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1801,21 +1803,21 @@
}
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
@@ -1850,7 +1852,7 @@
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -1864,7 +1866,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
@@ -1874,7 +1876,7 @@
dealloc_dmabuf(s, &s->dma_adc);
}
s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -1997,7 +1999,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->dev = pcidev;
s->io = pci_resource_start(pcidev, 0);
diff --git a/sound/oss/maestro.c b/sound/oss/maestro.c
index d4b569a..e647f2f 100644
--- a/sound/oss/maestro.c
+++ b/sound/oss/maestro.c
@@ -223,6 +223,8 @@
#include <linux/reboot.h>
#include <linux/bitops.h>
#include <linux/wait.h>
+#include <linux/mutex.h>
+
#include <asm/current.h>
#include <asm/dma.h>
@@ -397,7 +399,7 @@
/* this locks around the oss state in the driver */
spinlock_t lock;
/* only let 1 be opening at a time */
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
mode_t open_mode;
@@ -3020,26 +3022,26 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EWOULDBLOCK;
}
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
interruptible_sleep_on(&s->open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
/* under semaphore.. */
if ((s->card->dmapages==NULL) && allocate_buffers(s)) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -ENOMEM;
}
- /* we're covered by the open_sem */
+ /* we're covered by the open_mutex */
if( ! s->card->dsps_open ) {
maestro_power(s->card,ACPI_D0);
start_bob(s);
@@ -3076,7 +3078,7 @@
set_fmt(s, fmtm, fmts);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -3089,7 +3091,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
}
@@ -3098,7 +3100,7 @@
}
s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
- /* we're covered by the open_sem */
+ /* we're covered by the open_mutex */
M_printk("maestro: %d dsps now alive\n",s->card->dsps_open-1);
if( --s->card->dsps_open <= 0) {
s->card->dsps_open = 0;
@@ -3106,7 +3108,7 @@
free_buffers(s);
maestro_power(s->card,ACPI_D2);
}
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -3466,7 +3468,7 @@
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
spin_lock_init(&s->lock);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
s->magic = ESS_STATE_MAGIC;
s->apu[0] = 6*i;
diff --git a/sound/oss/maestro3.c b/sound/oss/maestro3.c
index f3dec70..66044af 100644
--- a/sound/oss/maestro3.c
+++ b/sound/oss/maestro3.c
@@ -144,6 +144,8 @@
#include <linux/spinlock.h>
#include <linux/ac97_codec.h>
#include <linux/wait.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/dma.h>
@@ -205,7 +207,7 @@
when irqhandler uses s->lock
and m3_assp_read uses card->lock ?
*/
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
mode_t open_mode;
@@ -2013,17 +2015,17 @@
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EWOULDBLOCK;
}
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
interruptible_sleep_on(&s->open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&c->lock, flags);
@@ -2047,7 +2049,7 @@
set_fmt(s, fmtm, fmts);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
spin_unlock_irqrestore(&c->lock, flags);
return nonseekable_open(inode, file);
}
@@ -2062,7 +2064,7 @@
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
spin_lock_irqsave(&card->lock, flags);
if (file->f_mode & FMODE_WRITE) {
@@ -2083,7 +2085,7 @@
s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
spin_unlock_irqrestore(&card->lock, flags);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
return 0;
@@ -2679,7 +2681,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&(s->open_sem));
+ mutex_init(&(s->open_mutex));
s->magic = M3_STATE_MAGIC;
m3_assp_client_init(s);
diff --git a/sound/oss/nec_vrc5477.c b/sound/oss/nec_vrc5477.c
index fbb9170..21c1954 100644
--- a/sound/oss/nec_vrc5477.c
+++ b/sound/oss/nec_vrc5477.c
@@ -78,6 +78,8 @@
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/uaccess.h>
@@ -198,7 +200,7 @@
unsigned short extended_status;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1617,22 +1619,22 @@
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
@@ -1659,7 +1661,7 @@
bailout:
spin_unlock_irqrestore(&s->lock, flags);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return ret;
}
@@ -1671,7 +1673,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
@@ -1681,7 +1683,7 @@
dealloc_dmabuf(s, &s->dma_adc);
}
s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
@@ -1867,7 +1869,7 @@
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
init_waitqueue_head(&s->open_wait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->dev = pcidev;
diff --git a/sound/oss/rme96xx.c b/sound/oss/rme96xx.c
index faa0b79..a1ec9d1 100644
--- a/sound/oss/rme96xx.c
+++ b/sound/oss/rme96xx.c
@@ -58,6 +58,7 @@
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/wait.h>
+#include <linux/mutex.h>
#include <asm/dma.h>
#include <asm/page.h>
@@ -326,7 +327,7 @@
/* waiting and locking */
wait_queue_head_t wait;
- struct semaphore open_sem;
+ struct mutex open_mutex;
wait_queue_head_t open_wait;
} dma[RME96xx_MAX_DEVS];
@@ -842,7 +843,7 @@
static int rme96xx_dmabuf_init(rme96xx_info * s,struct dmabuf* dma,int ioffset,int ooffset) {
- init_MUTEX(&dma->open_sem);
+ mutex_init(&dma->open_mutex);
init_waitqueue_head(&dma->open_wait);
init_waitqueue_head(&dma->wait);
dma->s = s;
@@ -1469,21 +1470,21 @@
dma = &s->dma[devnum];
f->private_data = dma;
/* wait for device to become free */
- down(&dma->open_sem);
+ mutex_lock(&dma->open_mutex);
while (dma->open_mode & f->f_mode) {
if (f->f_flags & O_NONBLOCK) {
- up(&dma->open_sem);
+ mutex_unlock(&dma->open_mutex);
return -EBUSY;
}
add_wait_queue(&dma->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&dma->open_sem);
+ mutex_unlock(&dma->open_mutex);
schedule();
remove_wait_queue(&dma->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&dma->open_sem);
+ mutex_lock(&dma->open_mutex);
}
COMM ("hardware open")
@@ -1492,7 +1493,7 @@
dma->open_mode |= (f->f_mode & (FMODE_READ | FMODE_WRITE));
dma->opened = 1;
- up(&dma->open_sem);
+ mutex_unlock(&dma->open_mutex);
DBG(printk("device num %d open finished\n",devnum));
return 0;
@@ -1524,7 +1525,7 @@
}
wake_up(&dma->open_wait);
- up(&dma->open_sem);
+ mutex_unlock(&dma->open_mutex);
return 0;
}
diff --git a/sound/oss/sonicvibes.c b/sound/oss/sonicvibes.c
index 71b05e2..69a4b87 100644
--- a/sound/oss/sonicvibes.c
+++ b/sound/oss/sonicvibes.c
@@ -116,6 +116,8 @@
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/gameport.h>
+#include <linux/mutex.h>
+
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -328,7 +330,7 @@
unsigned char fmt, enable;
spinlock_t lock;
- struct semaphore open_sem;
+ struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1922,21 +1924,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
if (file->f_mode & FMODE_READ) {
fmtm &= ~((SV_CFMT_STEREO | SV_CFMT_16BIT) << SV_CFMT_CSHIFT);
@@ -1956,7 +1958,7 @@
}
set_fmt(s, fmtm, fmts);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -1968,7 +1970,7 @@
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
@@ -1979,7 +1981,7 @@
}
s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2167,21 +2169,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2210,7 +2212,7 @@
}
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2248,7 +2250,7 @@
remove_wait_queue(&s->midi.owait, &wait);
set_current_state(TASK_RUNNING);
}
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
@@ -2257,7 +2259,7 @@
}
spin_unlock_irqrestore(&s->lock, flags);
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2388,21 +2390,21 @@
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
while (s->open_mode & FMODE_DMFM) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
}
/* init the stuff */
outb(1, s->iosynth);
@@ -2412,7 +2414,7 @@
outb(5, s->iosynth+2);
outb(1, s->iosynth+3); /* enable OPL3 */
s->open_mode |= FMODE_DMFM;
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
@@ -2423,7 +2425,7 @@
VALIDATE_STATE(s);
lock_kernel();
- down(&s->open_sem);
+ mutex_lock(&s->open_mutex);
s->open_mode &= ~FMODE_DMFM;
for (regb = 0xb0; regb < 0xb9; regb++) {
outb(regb, s->iosynth);
@@ -2432,7 +2434,7 @@
outb(0, s->iosynth+3);
}
wake_up(&s->open_wait);
- up(&s->open_sem);
+ mutex_unlock(&s->open_mutex);
unlock_kernel();
return 0;
}
@@ -2582,7 +2584,7 @@
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
- init_MUTEX(&s->open_sem);
+ mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = SV_MAGIC;
s->dev = pcidev;
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index df4d377..dce9016 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -76,6 +76,7 @@
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <asm/byteorder.h>
#include <asm/dma.h>
@@ -291,9 +292,9 @@
unsigned conversion:1; // conversion from 16 to 8 bit in progress
unsigned ena;
spinlock_t lock;
- struct semaphore open_sem;
- struct semaphore open_sem_adc;
- struct semaphore open_sem_dac;
+ struct mutex open_mutex;
+ struct mutex open_sem_adc;
+ struct mutex open_sem_dac;
mode_t open_mode;
wait_queue_head_t open_wait;
wait_queue_head_t open_wait_adc;
@@ -2352,20 +2353,20 @@
if (file->f_mode & FMODE_WRITE) {
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
s->open_mode &= ~FMODE_WRITE;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
wake_up(&s->open_wait_dac);
}
if (file->f_mode & FMODE_READ) {
drain_adc(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
s->open_mode &= ~FMODE_READ;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
wake_up(&s->open_wait_adc);
}
return 0;
@@ -2413,37 +2414,37 @@
;
}
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
while (s->open_mode & FMODE_WRITE) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
return -EBUSY;
}
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
interruptible_sleep_on(&s->open_wait_dac);
if (signal_pending(current)) {
printk("open - sig pending\n");
return -ERESTARTSYS;
}
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
}
}
if (file->f_mode & FMODE_READ) {
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
while (s->open_mode & FMODE_READ) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
return -EBUSY;
}
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
interruptible_sleep_on(&s->open_wait_adc);
if (signal_pending(current)) {
printk("open - sig pending\n");
return -ERESTARTSYS;
}
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
}
}
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
@@ -2456,7 +2457,7 @@
s->ena &= ~FMODE_READ;
s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags =
s->dma_adc.subdivision = 0;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
if (prog_dmabuf_adc(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -2474,7 +2475,7 @@
s->ena &= ~FMODE_WRITE;
s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags =
s->dma_dac.subdivision = 0;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
if (prog_dmabuf_dac(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -2631,8 +2632,8 @@
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->open_wait_adc);
init_waitqueue_head(&s->open_wait_dac);
- init_MUTEX(&s->open_sem_adc);
- init_MUTEX(&s->open_sem_dac);
+ mutex_init(&s->open_sem_adc);
+ mutex_init(&s->open_sem_dac);
spin_lock_init(&s->lock);
s->irq = K_INT_SER_1;
diff --git a/sound/oss/trident.c b/sound/oss/trident.c
index a21c663..e61a454 100644
--- a/sound/oss/trident.c
+++ b/sound/oss/trident.c
@@ -190,7 +190,7 @@
*
* Lock order (high->low)
* lock - hardware lock
- * open_sem - guard opens
+ * open_mutex - guard opens
* sem - guard dmabuf, write re-entry etc
*/
@@ -216,6 +216,8 @@
#include <linux/pm.h>
#include <linux/gameport.h>
#include <linux/kernel.h>
+#include <linux/mutex.h>
+
#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/dma.h>
@@ -349,7 +351,7 @@
unsigned chans_num;
unsigned long fmt_flag;
/* Guard against mmap/write/read races */
- struct semaphore sem;
+ struct mutex sem;
};
@@ -402,7 +404,7 @@
struct trident_card *next;
/* single open lock mechanism, only used for recording */
- struct semaphore open_sem;
+ struct mutex open_mutex;
/* The trident has a certain amount of cross channel interaction
so we use a single per card lock */
@@ -1881,7 +1883,7 @@
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
- down(&state->sem);
+ mutex_lock(&state->sem);
if (!dmabuf->ready && (ret = prog_dmabuf_record(state)))
goto out;
@@ -1913,7 +1915,7 @@
goto out;
}
- up(&state->sem);
+ mutex_unlock(&state->sem);
/* No matter how much space left in the buffer, */
/* we have to wait until CSO == ESO/2 or CSO == ESO */
/* when address engine interrupts */
@@ -1940,7 +1942,7 @@
ret = -ERESTARTSYS;
goto out;
}
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped) {
if (!ret)
ret = -ENXIO;
@@ -1968,7 +1970,7 @@
start_adc(state);
}
out:
- up(&state->sem);
+ mutex_unlock(&state->sem);
return ret;
}
@@ -1996,7 +1998,7 @@
* Guard against an mmap or ioctl while writing
*/
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped) {
ret = -ENXIO;
@@ -2045,7 +2047,7 @@
tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2);
tmo >>= sample_shift[dmabuf->fmt];
unlock_set_fmt(state);
- up(&state->sem);
+ mutex_unlock(&state->sem);
/* There are two situations when sleep_on_timeout */
/* returns, one is when the interrupt is serviced */
@@ -2073,7 +2075,7 @@
ret = -ERESTARTSYS;
goto out_nolock;
}
- down(&state->sem);
+ mutex_lock(&state->sem);
if (dmabuf->mapped) {
if (!ret)
ret = -ENXIO;
@@ -2131,7 +2133,7 @@
start_dac(state);
}
out:
- up(&state->sem);
+ mutex_unlock(&state->sem);
out_nolock:
return ret;
}
@@ -2152,24 +2154,24 @@
* prog_dmabuf events
*/
- down(&state->sem);
+ mutex_lock(&state->sem);
if (file->f_mode & FMODE_WRITE) {
if (!dmabuf->ready && prog_dmabuf_playback(state)) {
- up(&state->sem);
+ mutex_unlock(&state->sem);
return 0;
}
poll_wait(file, &dmabuf->wait, wait);
}
if (file->f_mode & FMODE_READ) {
if (!dmabuf->ready && prog_dmabuf_record(state)) {
- up(&state->sem);
+ mutex_unlock(&state->sem);
return 0;
}
poll_wait(file, &dmabuf->wait, wait);
}
- up(&state->sem);
+ mutex_unlock(&state->sem);
spin_lock_irqsave(&state->card->lock, flags);
trident_update_ptr(state);
@@ -2207,7 +2209,7 @@
* a read or write against an mmap.
*/
- down(&state->sem);
+ mutex_lock(&state->sem);
if (vma->vm_flags & VM_WRITE) {
if ((ret = prog_dmabuf_playback(state)) != 0)
@@ -2232,7 +2234,7 @@
dmabuf->mapped = 1;
ret = 0;
out:
- up(&state->sem);
+ mutex_unlock(&state->sem);
return ret;
}
@@ -2429,15 +2431,15 @@
unlock_set_fmt(state);
break;
}
- down(&state->card->open_sem);
+ mutex_lock(&state->card->open_mutex);
ret = ali_allocate_other_states_resources(state, 6);
if (ret < 0) {
- up(&state->card->open_sem);
+ mutex_unlock(&state->card->open_mutex);
unlock_set_fmt(state);
break;
}
state->card->multi_channel_use_count++;
- up(&state->card->open_sem);
+ mutex_unlock(&state->card->open_mutex);
} else
val = 2; /*yield to 2-channels */
} else
@@ -2727,11 +2729,11 @@
/* find an available virtual channel (instance of /dev/dsp) */
while (card != NULL) {
- down(&card->open_sem);
+ mutex_lock(&card->open_mutex);
if (file->f_mode & FMODE_READ) {
/* Skip opens on cards that are in 6 channel mode */
if (card->multi_channel_use_count > 0) {
- up(&card->open_sem);
+ mutex_unlock(&card->open_mutex);
card = card->next;
continue;
}
@@ -2740,16 +2742,16 @@
if (card->states[i] == NULL) {
state = card->states[i] = kmalloc(sizeof(*state), GFP_KERNEL);
if (state == NULL) {
- up(&card->open_sem);
+ mutex_unlock(&card->open_mutex);
return -ENOMEM;
}
memset(state, 0, sizeof(*state));
- init_MUTEX(&state->sem);
+ mutex_init(&state->sem);
dmabuf = &state->dmabuf;
goto found_virt;
}
}
- up(&card->open_sem);
+ mutex_unlock(&card->open_mutex);
card = card->next;
}
/* no more virtual channel avaiable */
@@ -2816,7 +2818,7 @@
}
state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&card->open_sem);
+ mutex_unlock(&card->open_mutex);
pr_debug("trident: open virtual channel %d, hard channel %d\n",
state->virt, dmabuf->channel->num);
@@ -2845,7 +2847,7 @@
state->virt, dmabuf->channel->num);
/* stop DMA state machine and free DMA buffers/channels */
- down(&card->open_sem);
+ mutex_lock(&card->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac(state);
@@ -2878,8 +2880,8 @@
card->states[state->virt] = NULL;
kfree(state);
- /* we're covered by the open_sem */
- up(&card->open_sem);
+ /* we're covered by the open_mutex */
+ mutex_unlock(&card->open_mutex);
return 0;
}
@@ -4405,7 +4407,7 @@
card->banks[BANK_B].addresses = &bank_b_addrs;
card->banks[BANK_B].bitmap = 0UL;
- init_MUTEX(&card->open_sem);
+ mutex_init(&card->open_mutex);
spin_lock_init(&card->lock);
init_timer(&card->timer);
diff --git a/sound/oss/via82cxxx_audio.c b/sound/oss/via82cxxx_audio.c
index 83edda9..1a921ee 100644
--- a/sound/oss/via82cxxx_audio.c
+++ b/sound/oss/via82cxxx_audio.c
@@ -38,7 +38,8 @@
#include <linux/dma-mapping.h>
#include <asm/io.h>
#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
#include "sound_config.h"
#include "dev_table.h"
#include "mpu401.h"
@@ -311,8 +312,8 @@
int mixer_vol; /* 8233/35 volume - not yet implemented */
- struct semaphore syscall_sem;
- struct semaphore open_sem;
+ struct mutex syscall_mutex;
+ struct mutex open_mutex;
/* The 8233/8235 have 4 DX audio channels, two record and
one six channel out. We bind ch_in to DX 1, ch_out to multichannel
@@ -505,10 +506,10 @@
nonblock = 0;
if (nonblock) {
- if (down_trylock (&card->syscall_sem))
+ if (!mutex_trylock(&card->syscall_mutex))
return -EAGAIN;
} else {
- if (down_interruptible (&card->syscall_sem))
+ if (mutex_lock_interruptible(&card->syscall_mutex))
return -ERESTARTSYS;
}
@@ -1609,7 +1610,7 @@
#endif
rc = codec->mixer_ioctl(codec, cmd, arg);
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %d\n", rc);
@@ -2228,7 +2229,7 @@
if (wr)
card->ch_out.is_mapped = 1;
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
rc = 0;
out:
@@ -2256,7 +2257,7 @@
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
@@ -2286,7 +2287,7 @@
break;
}
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on block %d\n", n);
schedule();
@@ -2402,7 +2403,7 @@
rc = via_dsp_do_read (card, buffer, count, nonblock);
out_up:
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %ld\n",(long) rc);
return rc;
@@ -2426,7 +2427,7 @@
/* Thomas Sailer:
* But also to ourselves, release semaphore if we do so */
if (need_resched()) {
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
schedule ();
ret = via_syscall_down (card, nonblock);
if (ret)
@@ -2456,7 +2457,7 @@
break;
}
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("Sleeping on page %d, tmp==%d, ir==%d\n", n, tmp, chan->is_record);
schedule();
@@ -2585,7 +2586,7 @@
rc = via_dsp_do_write (card, buffer, count, nonblock);
out_up:
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
out:
DPRINTK ("EXIT, returning %ld\n",(long) rc);
return rc;
@@ -2634,7 +2635,7 @@
* Sleeps until all playback has been flushed to the audio
* hardware.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_drain_playback (struct via_info *card,
@@ -2692,7 +2693,7 @@
printk (KERN_ERR "sleeping but not active\n");
#endif
- up(&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("sleeping, nbufs=%d\n", atomic_read (&chan->n_frags));
schedule();
@@ -2748,7 +2749,7 @@
*
* Handles SNDCTL_DSP_GETISPACE and SNDCTL_DSP_GETOSPACE.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_space (struct via_info *card,
@@ -2793,7 +2794,7 @@
*
* Handles SNDCTL_DSP_GETIPTR and SNDCTL_DSP_GETOPTR.
*
- * Locking: inside card->syscall_sem
+ * Locking: inside card->syscall_mutex
*/
static int via_dsp_ioctl_ptr (struct via_info *card,
@@ -3221,7 +3222,7 @@
break;
}
- up (&card->syscall_sem);
+ mutex_unlock(&card->syscall_mutex);
DPRINTK ("EXIT, returning %d\n", rc);
return rc;
}
@@ -3264,12 +3265,12 @@
match:
if (nonblock) {
- if (down_trylock (&card->open_sem)) {
+ if (!mutex_trylock(&card->open_mutex)) {
DPRINTK ("EXIT, returning -EAGAIN\n");
return -EAGAIN;
}
} else {
- if (down_interruptible (&card->open_sem)) {
+ if (mutex_lock_interruptible(&card->open_mutex)) {
DPRINTK ("EXIT, returning -ERESTARTSYS\n");
return -ERESTARTSYS;
}
@@ -3355,8 +3356,8 @@
via_chan_buffer_free (card, &card->ch_in);
}
- up (&card->syscall_sem);
- up (&card->open_sem);
+ mutex_unlock(&card->syscall_mutex);
+ mutex_unlock(&card->open_mutex);
DPRINTK ("EXIT, returning 0\n");
return 0;
@@ -3414,8 +3415,8 @@
card->card_num = via_num_cards++;
spin_lock_init (&card->lock);
spin_lock_init (&card->ac97_lock);
- init_MUTEX (&card->syscall_sem);
- init_MUTEX (&card->open_sem);
+ mutex_init(&card->syscall_mutex);
+ mutex_init(&card->open_mutex);
/* we must init these now, in case the intr handler needs them */
via_chan_init_defaults (card, &card->ch_out);
diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c
index 2654230..b372e88 100644
--- a/sound/oss/vwsnd.c
+++ b/sound/oss/vwsnd.c
@@ -94,7 +94,7 @@
* Open will block until the previous client has closed the
* device, unless O_NONBLOCK is specified.
*
- * The semaphore devc->io_sema serializes PCM I/O syscalls. This
+ * The semaphore devc->io_mutex serializes PCM I/O syscalls. This
* is unnecessary in Linux 2.2, because the kernel lock
* serializes read, write, and ioctl globally, but it's there,
* ready for the brave, new post-kernel-lock world.
@@ -105,7 +105,7 @@
* area it owns and update its pointers. See pcm_output() and
* pcm_input() for most of the gory stuff.
*
- * devc->mix_sema serializes all mixer ioctls. This is also
+ * devc->mix_mutex serializes all mixer ioctls. This is also
* redundant because of the kernel lock.
*
* The lowest level lock is lith->lithium_lock. It is a
@@ -148,7 +148,8 @@
#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <linux/interrupt.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
+
#include <asm/mach-visws/cobalt.h>
#include "sound_config.h"
@@ -1447,11 +1448,11 @@
*
* port->lock protects: hwstate, flags, swb_[iu]_avail.
*
- * devc->io_sema protects: swstate, sw_*, swb_[iu]_idx.
+ * devc->io_mutex protects: swstate, sw_*, swb_[iu]_idx.
*
* everything else is only written by open/release or
* pcm_{setup,shutdown}(), which are serialized by a
- * combination of devc->open_sema and devc->io_sema.
+ * combination of devc->open_mutex and devc->io_mutex.
*/
typedef struct vwsnd_port {
@@ -1507,9 +1508,9 @@
int audio_minor; /* minor number of audio device */
int mixer_minor; /* minor number of mixer device */
- struct semaphore open_sema;
- struct semaphore io_sema;
- struct semaphore mix_sema;
+ struct mutex open_mutex;
+ struct mutex io_mutex;
+ struct mutex mix_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
@@ -1633,7 +1634,7 @@
* mode-setting ioctls have been done, but before the first I/O is
* done.
*
- * Locking: called with devc->io_sema held.
+ * Locking: called with devc->io_mutex held.
*
* Returns 0 on success, -errno on failure.
*/
@@ -2319,9 +2320,9 @@
vwsnd_dev_t *devc = file->private_data;
ssize_t ret;
- down(&devc->io_sema);
+ mutex_lock(&devc->io_mutex);
ret = vwsnd_audio_do_read(file, buffer, count, ppos);
- up(&devc->io_sema);
+ mutex_unlock(&devc->io_mutex);
return ret;
}
@@ -2394,9 +2395,9 @@
vwsnd_dev_t *devc = file->private_data;
ssize_t ret;
- down(&devc->io_sema);
+ mutex_lock(&devc->io_mutex);
ret = vwsnd_audio_do_write(file, buffer, count, ppos);
- up(&devc->io_sema);
+ mutex_unlock(&devc->io_mutex);
return ret;
}
@@ -2891,9 +2892,9 @@
vwsnd_dev_t *devc = (vwsnd_dev_t *) file->private_data;
int ret;
- down(&devc->io_sema);
+ mutex_lock(&devc->io_mutex);
ret = vwsnd_audio_do_ioctl(inode, file, cmd, arg);
- up(&devc->io_sema);
+ mutex_unlock(&devc->io_mutex);
return ret;
}
@@ -2929,9 +2930,9 @@
return -ENODEV;
}
- down(&devc->open_sema);
+ mutex_lock(&devc->open_mutex);
while (devc->open_mode & file->f_mode) {
- up(&devc->open_sema);
+ mutex_unlock(&devc->open_mutex);
if (file->f_flags & O_NONBLOCK) {
DEC_USE_COUNT;
return -EBUSY;
@@ -2941,10 +2942,10 @@
DEC_USE_COUNT;
return -ERESTARTSYS;
}
- down(&devc->open_sema);
+ mutex_lock(&devc->open_mutex);
}
devc->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- up(&devc->open_sema);
+ mutex_unlock(&devc->open_mutex);
/* get default sample format from minor number. */
@@ -2960,7 +2961,7 @@
/* Initialize vwsnd_ports. */
- down(&devc->io_sema);
+ mutex_lock(&devc->io_mutex);
{
if (file->f_mode & FMODE_READ) {
devc->rport.swstate = SW_INITIAL;
@@ -2987,7 +2988,7 @@
devc->wport.frag_count = 0;
}
}
- up(&devc->io_sema);
+ mutex_unlock(&devc->io_mutex);
file->private_data = devc;
DBGRV();
@@ -3005,7 +3006,7 @@
int err = 0;
lock_kernel();
- down(&devc->io_sema);
+ mutex_lock(&devc->io_mutex);
{
DBGEV("(inode=0x%p, file=0x%p)\n", inode, file);
@@ -3022,13 +3023,13 @@
if (wport)
wport->swstate = SW_OFF;
}
- up(&devc->io_sema);
+ mutex_unlock(&devc->io_mutex);
- down(&devc->open_sema);
+ mutex_lock(&devc->open_mutex);
{
devc->open_mode &= ~file->f_mode;
}
- up(&devc->open_sema);
+ mutex_unlock(&devc->open_mutex);
wake_up(&devc->open_wait);
DEC_USE_COUNT;
DBGR();
@@ -3213,7 +3214,7 @@
DBGEV("(devc=0x%p, cmd=0x%x, arg=0x%lx)\n", devc, cmd, arg);
- down(&devc->mix_sema);
+ mutex_lock(&devc->mix_mutex);
{
if ((cmd & ~nrmask) == MIXER_READ(0))
retval = mixer_read_ioctl(devc, nr, (void __user *) arg);
@@ -3222,7 +3223,7 @@
else
retval = -EINVAL;
}
- up(&devc->mix_sema);
+ mutex_unlock(&devc->mix_mutex);
return retval;
}
@@ -3376,9 +3377,9 @@
/* Initialize as much of *devc as possible */
- init_MUTEX(&devc->open_sema);
- init_MUTEX(&devc->io_sema);
- init_MUTEX(&devc->mix_sema);
+ mutex_init(&devc->open_mutex);
+ mutex_init(&devc->io_mutex);
+ mutex_init(&devc->mix_mutex);
devc->open_mode = 0;
spin_lock_init(&devc->rport.lock);
init_waitqueue_head(&devc->rport.queue);
diff --git a/sound/oss/ymfpci.c b/sound/oss/ymfpci.c
index f8bd72e..bf90c12 100644
--- a/sound/oss/ymfpci.c
+++ b/sound/oss/ymfpci.c
@@ -1918,10 +1918,10 @@
if (unit == NULL)
return -ENODEV;
- down(&unit->open_sem);
+ mutex_lock(&unit->open_mutex);
if ((state = ymf_state_alloc(unit)) == NULL) {
- up(&unit->open_sem);
+ mutex_unlock(&unit->open_mutex);
return -ENOMEM;
}
list_add_tail(&state->chain, &unit->states);
@@ -1956,7 +1956,7 @@
ymfpci_writeb(unit, YDSXGR_TIMERCTRL,
(YDSXGR_TIMERCTRL_TEN|YDSXGR_TIMERCTRL_TIEN));
#endif
- up(&unit->open_sem);
+ mutex_unlock(&unit->open_mutex);
return nonseekable_open(inode, file);
@@ -1974,7 +1974,7 @@
list_del(&state->chain);
kfree(state);
- up(&unit->open_sem);
+ mutex_unlock(&unit->open_mutex);
return err;
}
@@ -1987,7 +1987,7 @@
ymfpci_writeb(unit, YDSXGR_TIMERCTRL, 0);
#endif
- down(&unit->open_sem);
+ mutex_lock(&unit->open_mutex);
/*
* XXX Solve the case of O_NONBLOCK close - don't deallocate here.
@@ -2004,7 +2004,7 @@
file->private_data = NULL; /* Can you tell I programmed Solaris */
kfree(state);
- up(&unit->open_sem);
+ mutex_unlock(&unit->open_mutex);
return 0;
}
@@ -2532,7 +2532,7 @@
spin_lock_init(&codec->reg_lock);
spin_lock_init(&codec->voice_lock);
spin_lock_init(&codec->ac97_lock);
- init_MUTEX(&codec->open_sem);
+ mutex_init(&codec->open_mutex);
INIT_LIST_HEAD(&codec->states);
codec->pci = pcidev;
diff --git a/sound/oss/ymfpci.h b/sound/oss/ymfpci.h
index f810a10..ac1785f 100644
--- a/sound/oss/ymfpci.h
+++ b/sound/oss/ymfpci.h
@@ -22,6 +22,7 @@
*
*/
#include <linux/config.h>
+#include <linux/mutex.h>
/*
* Direct registers
@@ -279,7 +280,7 @@
/* soundcore stuff */
int dev_audio;
- struct semaphore open_sem;
+ struct mutex open_mutex;
struct list_head ymf_devs;
struct list_head states; /* List of states for this unit */