Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] boot cputime accounting
[S390] add read_persistent_clock
[S390] cpu hotplug and accounting values
[S390] fix idle time accounting
[S390] smp: fix cpu_possible_map initialization
[S390] dasd: fix idaw boundary checking for track based ccw
[S390] dasd: Use the new async framework for autoonlining.
[S390] qdio: remove dead timeout handler
[S390] appldata: Use new mod_virt_timer_periodic() function.
[S390] extend virtual timer interface by mod_virt_timer_periodic
[S390] stp synchronization retry timer
[S390] call nmi_enter/nmi_exit on machine checks
[S390] wire up preadv/pwritev system calls
[S390] s390: move machine flags to lowcore
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index ecad6ee..6fab97e 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -1040,23 +1040,21 @@
iii. Plugging the queue to batch requests in anticipation of opportunities for
merge/sort optimizations
-This is just the same as in 2.4 so far, though per-device unplugging
-support is anticipated for 2.5. Also with a priority-based i/o scheduler,
-such decisions could be based on request priorities.
-
Plugging is an approach that the current i/o scheduling algorithm resorts to so
that it collects up enough requests in the queue to be able to take
advantage of the sorting/merging logic in the elevator. If the
queue is empty when a request comes in, then it plugs the request queue
-(sort of like plugging the bottom of a vessel to get fluid to build up)
+(sort of like plugging the bath tub of a vessel to get fluid to build up)
till it fills up with a few more requests, before starting to service
the requests. This provides an opportunity to merge/sort the requests before
passing them down to the device. There are various conditions when the queue is
unplugged (to open up the flow again), either through a scheduled task or
could be on demand. For example wait_on_buffer sets the unplugging going
-(by running tq_disk) so the read gets satisfied soon. So in the read case,
-the queue gets explicitly unplugged as part of waiting for completion,
-in fact all queues get unplugged as a side-effect.
+through sync_buffer() running blk_run_address_space(mapping). Or the caller
+can do it explicity through blk_unplug(bdev). So in the read case,
+the queue gets explicitly unplugged as part of waiting for completion on that
+buffer. For page driven IO, the address space ->sync_page() takes care of
+doing the blk_run_address_space().
Aside:
This is kind of controversial territory, as it's not clear if plugging is
@@ -1067,11 +1065,6 @@
multi-page bios being queued in one shot, we may not need to wait to merge
a big request from the broken up pieces coming by.
- Per-queue granularity unplugging (still a Todo) may help reduce some of the
- concerns with just a single tq_disk flush approach. Something like
- blk_kick_queue() to unplug a specific queue (right away ?)
- or optionally, all queues, is in the plan.
-
4.4 I/O contexts
I/O contexts provide a dynamically allocated per process data area. They may
be used in I/O schedulers, and in the block layer (could be used for IO statis,
diff --git a/Documentation/powerpc/dts-bindings/fsl/i2c.txt b/Documentation/powerpc/dts-bindings/fsl/i2c.txt
index d0ab33e..b6d2e21 100644
--- a/Documentation/powerpc/dts-bindings/fsl/i2c.txt
+++ b/Documentation/powerpc/dts-bindings/fsl/i2c.txt
@@ -7,8 +7,10 @@
Recommended properties :
- - compatible : Should be "fsl-i2c" for parts compatible with
- Freescale I2C specifications.
+ - compatible : compatibility list with 2 entries, the first should
+ be "fsl,CHIP-i2c" where CHIP is the name of a compatible processor,
+ e.g. mpc8313, mpc8543, mpc8544, mpc5200 or mpc5200b. The second one
+ should be "fsl-i2c".
- interrupts : <a b> where a is the interrupt number and b is a
field that represents an encoding of the sense and level
information for the interrupt. This should be encoded based on
@@ -16,17 +18,31 @@
controller you have.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
- - dfsrr : boolean; if defined, indicates that this I2C device has
- a digital filter sampling rate register
- - fsl5200-clocking : boolean; if defined, indicated that this device
- uses the FSL 5200 clocking mechanism.
+ - fsl,preserve-clocking : boolean; if defined, the clock settings
+ from the bootloader are preserved (not touched).
+ - clock-frequency : desired I2C bus clock frequency in Hz.
-Example :
- i2c@3000 {
- interrupt-parent = <40000>;
- interrupts = <1b 3>;
- reg = <3000 18>;
- device_type = "i2c";
- compatible = "fsl-i2c";
- dfsrr;
+Examples :
+
+ i2c@3d00 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc5200b-i2c","fsl,mpc5200-i2c","fsl-i2c";
+ cell-index = <0>;
+ reg = <0x3d00 0x40>;
+ interrupts = <2 15 0>;
+ interrupt-parent = <&mpc5200_pic>;
+ fsl,preserve-clocking;
};
+
+ i2c@3100 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cell-index = <1>;
+ compatible = "fsl,mpc8544-i2c", "fsl-i2c";
+ reg = <0x3100 0x100>;
+ interrupts = <43 2>;
+ interrupt-parent = <&mpic>;
+ clock-frequency = <400000>;
+ };
+
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index c5948f2..88b7433 100644
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -169,7 +169,7 @@
What `model` option values are available depends on the codec chip.
Check your codec chip from the codec proc file (see "Codec Proc-File"
section below). It will show the vendor/product name of your codec
-chip. Then, see Documentation/sound/alsa/HD-Audio-Modelstxt file,
+chip. Then, see Documentation/sound/alsa/HD-Audio-Models.txt file,
the section of HD-audio driver. You can find a list of codecs
and `model` options belonging to each codec. For example, for Realtek
ALC262 codec chip, pass `model=ultra` for devices that are compatible
@@ -177,7 +177,7 @@
Thus, the first thing you can do for any brand-new, unsupported and
non-working HD-audio hardware is to check HD-audio codec and several
-different `model` option values. If you have a luck, some of them
+different `model` option values. If you have any luck, some of them
might suit with your device well.
Some codecs such as ALC880 have a special model option `model=test`.
diff --git a/MAINTAINERS b/MAINTAINERS
index 29d74f4..0cb20d8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3680,6 +3680,7 @@
W: http://www.monstr.eu/fdt/
T: git git://git.monstr.eu/linux-2.6-microblaze.git
S: Supported
+F: arch/microblaze/
MICROTEK X6 SCANNER
P: Oliver Neukum
@@ -5313,7 +5314,9 @@
W: http://www.linux-sh.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.git
S: Supported
+F: Documentation/sh/
F: arch/sh/
+F: drivers/sh/
SUSPEND TO RAM
P: Len Brown
diff --git a/Makefile b/Makefile
index ad830bd..bfdef56 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 30
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
NAME = Temporary Tasmanian Devil
# *DOCUMENTATION*
@@ -169,7 +169,7 @@
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
- -e s/sh.*/sh/ )
+ -e s/sh[234].*/sh/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
@@ -210,6 +210,11 @@
SRCARCH := sparc
endif
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+ SRCARCH := sh
+endif
+
# Where to locate arch specific headers
hdr-arch := $(SRCARCH)
diff --git a/arch/microblaze/include/asm/auxvec.h b/arch/microblaze/include/asm/auxvec.h
index e69de29..8b13789 100644
--- a/arch/microblaze/include/asm/auxvec.h
+++ b/arch/microblaze/include/asm/auxvec.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/cputable.h b/arch/microblaze/include/asm/cputable.h
index e69de29..8b13789 100644
--- a/arch/microblaze/include/asm/cputable.h
+++ b/arch/microblaze/include/asm/cputable.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/ftrace.h b/arch/microblaze/include/asm/ftrace.h
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/arch/microblaze/include/asm/ftrace.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h
index e69de29..8b13789 100644
--- a/arch/microblaze/include/asm/hw_irq.h
+++ b/arch/microblaze/include/asm/hw_irq.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index cfab034..8b5853e 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -12,7 +12,6 @@
#include <asm/byteorder.h>
#include <asm/page.h>
#include <linux/types.h>
-#include <asm/page.h>
#define IO_SPACE_LIMIT (0xFFFFFFFF)
diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h
index f919b6b..8259368 100644
--- a/arch/microblaze/include/asm/socket.h
+++ b/arch/microblaze/include/asm/socket.h
@@ -63,4 +63,7 @@
#define SO_MARK 36
+#define SO_TIMESTAMPING 37
+#define SCM_TIMESTAMPING SO_TIMESTAMPING
+
#endif /* _ASM_MICROBLAZE_SOCKET_H */
diff --git a/arch/microblaze/include/asm/user.h b/arch/microblaze/include/asm/user.h
index e69de29..8b13789 100644
--- a/arch/microblaze/include/asm/user.h
+++ b/arch/microblaze/include/asm/user.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/include/asm/vga.h b/arch/microblaze/include/asm/vga.h
index e69de29..8b13789 100644
--- a/arch/microblaze/include/asm/vga.h
+++ b/arch/microblaze/include/asm/vga.h
@@ -0,0 +1 @@
+
diff --git a/arch/microblaze/kernel/of_device.c b/arch/microblaze/kernel/of_device.c
index 717edf4..9a0f7632 100644
--- a/arch/microblaze/kernel/of_device.c
+++ b/arch/microblaze/kernel/of_device.c
@@ -13,7 +13,6 @@
{
static atomic_t bus_no_reg_magic;
struct device_node *node = dev->node;
- char *name = dev->dev.bus_id;
const u32 *reg;
u64 addr;
int magic;
@@ -25,9 +24,8 @@
if (reg) {
addr = of_translate_address(node, reg);
if (addr != OF_BAD_ADDR) {
- snprintf(name, BUS_ID_SIZE,
- "%llx.%s", (unsigned long long)addr,
- node->name);
+ dev_set_name(&dev->dev, "%llx.%s",
+ (unsigned long long)addr, node->name);
return;
}
}
@@ -37,7 +35,7 @@
* counter (and pray...)
*/
magic = atomic_add_return(1, &bus_no_reg_magic);
- snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
+ dev_set_name(&dev->dev, "%s.%d", node->name, magic - 1);
}
EXPORT_SYMBOL(of_device_make_bus_id);
@@ -58,7 +56,7 @@
dev->dev.archdata.of_node = np;
if (bus_id)
- strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
+ dev_set_name(&dev->dev, bus_id);
else
of_device_make_bus_id(dev);
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 60e9ed7..436f26c 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -115,8 +115,7 @@
{
}
-/* FIXME - here will be a proposed change -> remove nr parameter */
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
+int copy_thread(unsigned long clone_flags, unsigned long usp,
unsigned long unused,
struct task_struct *p, struct pt_regs *regs)
{
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 475b1fa..34c4871 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -39,7 +39,6 @@
#include <asm/system.h>
#include <asm/mmu.h>
#include <asm/pgtable.h>
-#include <linux/pci.h>
#include <asm/sections.h>
#include <asm/pci-bridge.h>
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 3171e39..b86aa62 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -32,7 +32,6 @@
#include <linux/signal.h>
#include <linux/errno.h>
-#include <linux/ptrace.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
#include <asm/asm-offsets.h>
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index ff347b9..3889cf4 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -37,7 +37,6 @@
#include <linux/uaccess.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
-#include <linux/signal.h>
#include <linux/syscalls.h>
#include <asm/cacheflush.h>
#include <asm/syscalls.h>
diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index d90b548..ba0568c 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -29,9 +29,7 @@
#include <linux/module.h>
#include <linux/err.h>
#include <linux/fs.h>
-#include <linux/ipc.h>
#include <linux/semaphore.h>
-#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <linux/unistd.h>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5b50e1a..4c78045 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -462,7 +462,7 @@
config PPC_256K_PAGES
bool "256k page size" if 44x
- depends on !STDBINUTILS && (!SHMEM || BROKEN)
+ depends on !STDBINUTILS
help
Make the page size 256k.
diff --git a/arch/powerpc/boot/dts/tqm8540.dts b/arch/powerpc/boot/dts/tqm8540.dts
index 231bae7..b6f1fc6 100644
--- a/arch/powerpc/boot/dts/tqm8540.dts
+++ b/arch/powerpc/boot/dts/tqm8540.dts
@@ -84,9 +84,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8541.dts b/arch/powerpc/boot/dts/tqm8541.dts
index 4356a1f..fa6a3d5 100644
--- a/arch/powerpc/boot/dts/tqm8541.dts
+++ b/arch/powerpc/boot/dts/tqm8541.dts
@@ -83,9 +83,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8548-bigflash.dts b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
index 19aa723..00f7ed7 100644
--- a/arch/powerpc/boot/dts/tqm8548-bigflash.dts
+++ b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
@@ -85,9 +85,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
@@ -247,7 +247,7 @@
interrupts = <31 2 32 2 33 2>;
interrupt-parent = <&mpic>;
tbi-handle = <&tbi2>;
- phy-handle = <&phy3>;
+ phy-handle = <&phy4>;
mdio@520 {
#address-cells = <1>;
@@ -275,7 +275,7 @@
interrupts = <37 2 38 2 39 2>;
interrupt-parent = <&mpic>;
tbi-handle = <&tbi3>;
- phy-handle = <&phy4>;
+ phy-handle = <&phy5>;
mdio@520 {
#address-cells = <1>;
diff --git a/arch/powerpc/boot/dts/tqm8548.dts b/arch/powerpc/boot/dts/tqm8548.dts
index 49145a0..673e4a7 100644
--- a/arch/powerpc/boot/dts/tqm8548.dts
+++ b/arch/powerpc/boot/dts/tqm8548.dts
@@ -85,9 +85,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
@@ -247,7 +247,7 @@
interrupts = <31 2 32 2 33 2>;
interrupt-parent = <&mpic>;
tbi-handle = <&tbi2>;
- phy-handle = <&phy3>;
+ phy-handle = <&phy4>;
mdio@520 {
#address-cells = <1>;
@@ -275,7 +275,7 @@
interrupts = <37 2 38 2 39 2>;
interrupt-parent = <&mpic>;
tbi-handle = <&tbi3>;
- phy-handle = <&phy4>;
+ phy-handle = <&phy5>;
mdio@520 {
#address-cells = <1>;
diff --git a/arch/powerpc/boot/dts/tqm8555.dts b/arch/powerpc/boot/dts/tqm8555.dts
index 06d366e..6a99f1e 100644
--- a/arch/powerpc/boot/dts/tqm8555.dts
+++ b/arch/powerpc/boot/dts/tqm8555.dts
@@ -83,9 +83,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8560.dts b/arch/powerpc/boot/dts/tqm8560.dts
index feff915..b6c2d71 100644
--- a/arch/powerpc/boot/dts/tqm8560.dts
+++ b/arch/powerpc/boot/dts/tqm8560.dts
@@ -85,9 +85,9 @@
interrupt-parent = <&mpic>;
dfsrr;
- dtt@50 {
+ dtt@48 {
compatible = "national,lm75";
- reg = <0x50>;
+ reg = <0x48>;
};
rtc@68 {
diff --git a/arch/powerpc/configs/85xx/tqm8548_defconfig b/arch/powerpc/configs/85xx/tqm8548_defconfig
index 0bc4597..43030fe 100644
--- a/arch/powerpc/configs/85xx/tqm8548_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8548_defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.29-rc2
-# Mon Jan 26 15:36:20 2009
+# Linux kernel version: 2.6.29-rc7
+# Mon Mar 16 09:03:28 2009
#
# CONFIG_PPC64 is not set
@@ -22,6 +22,7 @@
# CONFIG_PHYS_64BIT is not set
CONFIG_SPE=y
CONFIG_PPC_MMU_NOHASH=y
+CONFIG_PPC_BOOK3E_MMU=y
# CONFIG_PPC_MM_SLICES is not set
# CONFIG_SMP is not set
CONFIG_PPC32=y
@@ -75,6 +76,15 @@
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
+
+#
+# RCU Subsystem
+#
+CONFIG_CLASSIC_RCU=y
+# CONFIG_TREE_RCU is not set
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_GROUP_SCHED=y
@@ -152,11 +162,6 @@
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="anticipatory"
-CONFIG_CLASSIC_RCU=y
-# CONFIG_TREE_RCU is not set
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_TREE_RCU_TRACE is not set
-# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_FREEZER is not set
#
@@ -202,7 +207,7 @@
#
# Kernel options
#
-# CONFIG_HIGHMEM is not set
+CONFIG_HIGHMEM=y
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@@ -244,6 +249,7 @@
CONFIG_PPC_4K_PAGES=y
# CONFIG_PPC_16K_PAGES is not set
# CONFIG_PPC_64K_PAGES is not set
+# CONFIG_PPC_256K_PAGES is not set
CONFIG_FORCE_MAX_ZONEORDER=11
CONFIG_PROC_DEVICETREE=y
# CONFIG_CMDLINE_BOOL is not set
@@ -259,6 +265,7 @@
CONFIG_PPC_INDIRECT_PCI=y
CONFIG_FSL_SOC=y
CONFIG_FSL_PCI=y
+CONFIG_FSL_LBC=y
CONFIG_PPC_PCI_CHOICE=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
@@ -284,10 +291,11 @@
# Default settings for advanced configuration options are used
#
CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_LOWMEM_CAM_NUM=3
CONFIG_PAGE_OFFSET=0xc0000000
CONFIG_KERNEL_START=0xc0000000
CONFIG_PHYSICAL_START=0x00000000
-CONFIG_PHYSICAL_ALIGN=0x10000000
+CONFIG_PHYSICAL_ALIGN=0x04000000
CONFIG_TASK_SIZE=0xc0000000
CONFIG_NET=y
@@ -363,12 +371,7 @@
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
-CONFIG_WIRELESS=y
-# CONFIG_CFG80211 is not set
-CONFIG_WIRELESS_OLD_REGULATORY=y
-# CONFIG_WIRELESS_EXT is not set
-# CONFIG_LIB80211 is not set
-# CONFIG_MAC80211 is not set
+# CONFIG_WIRELESS is not set
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
@@ -471,27 +474,18 @@
# CONFIG_MTD_NAND_NANDSIM is not set
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_NAND_FSL_ELBC is not set
-# CONFIG_MTD_NAND_FSL_UPM is not set
+CONFIG_MTD_NAND_FSL_UPM=y
# CONFIG_MTD_ONENAND is not set
#
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
-# CONFIG_MTD_QINFO_PROBE is not set
#
# UBI - Unsorted block images
#
-CONFIG_MTD_UBI=m
-CONFIG_MTD_UBI_WL_THRESHOLD=4096
-CONFIG_MTD_UBI_BEB_RESERVE=1
-# CONFIG_MTD_UBI_GLUEBI is not set
-
-#
-# UBI debugging options
-#
-# CONFIG_MTD_UBI_DEBUG is not set
+# CONFIG_MTD_UBI is not set
CONFIG_OF_DEVICE=y
CONFIG_OF_I2C=y
# CONFIG_PARPORT is not set
@@ -515,69 +509,21 @@
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
-# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_AT24 is not set
+# CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_93CX6 is not set
CONFIG_HAVE_IDE=y
-CONFIG_IDE=y
-
-#
-# Please see Documentation/ide/ide.txt for help/info on IDE drives
-#
-CONFIG_IDE_TIMINGS=y
-# CONFIG_BLK_DEV_IDE_SATA is not set
-CONFIG_IDE_GD=y
-CONFIG_IDE_GD_ATA=y
-# CONFIG_IDE_GD_ATAPI is not set
-# CONFIG_BLK_DEV_IDECD is not set
-# CONFIG_BLK_DEV_IDETAPE is not set
-# CONFIG_IDE_TASK_IOCTL is not set
-CONFIG_IDE_PROC_FS=y
-
-#
-# IDE chipset support/bugfixes
-#
-# CONFIG_BLK_DEV_PLATFORM is not set
-CONFIG_BLK_DEV_IDEDMA_SFF=y
-
-#
-# PCI IDE chipsets support
-#
-CONFIG_BLK_DEV_IDEPCI=y
-CONFIG_IDEPCI_PCIBUS_ORDER=y
-# CONFIG_BLK_DEV_OFFBOARD is not set
-CONFIG_BLK_DEV_GENERIC=y
-# CONFIG_BLK_DEV_OPTI621 is not set
-CONFIG_BLK_DEV_IDEDMA_PCI=y
-# CONFIG_BLK_DEV_AEC62XX is not set
-# CONFIG_BLK_DEV_ALI15X3 is not set
-# CONFIG_BLK_DEV_AMD74XX is not set
-# CONFIG_BLK_DEV_CMD64X is not set
-# CONFIG_BLK_DEV_TRIFLEX is not set
-# CONFIG_BLK_DEV_CS5520 is not set
-# CONFIG_BLK_DEV_CS5530 is not set
-# CONFIG_BLK_DEV_HPT366 is not set
-# CONFIG_BLK_DEV_JMICRON is not set
-# CONFIG_BLK_DEV_SC1200 is not set
-# CONFIG_BLK_DEV_PIIX is not set
-# CONFIG_BLK_DEV_IT8172 is not set
-# CONFIG_BLK_DEV_IT8213 is not set
-# CONFIG_BLK_DEV_IT821X is not set
-# CONFIG_BLK_DEV_NS87415 is not set
-# CONFIG_BLK_DEV_PDC202XX_OLD is not set
-# CONFIG_BLK_DEV_PDC202XX_NEW is not set
-# CONFIG_BLK_DEV_SVWKS is not set
-# CONFIG_BLK_DEV_SIIMAGE is not set
-# CONFIG_BLK_DEV_SL82C105 is not set
-# CONFIG_BLK_DEV_SLC90E66 is not set
-# CONFIG_BLK_DEV_TRM290 is not set
-CONFIG_BLK_DEV_VIA82CXXX=y
-# CONFIG_BLK_DEV_TC86C001 is not set
-CONFIG_BLK_DEV_IDEDMA=y
+# CONFIG_IDE is not set
#
# SCSI device support
@@ -650,7 +596,7 @@
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
-CONFIG_E1000=y
+# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_IP1000 is not set
# CONFIG_IGB is not set
@@ -668,6 +614,7 @@
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
+# CONFIG_ATL1C is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
@@ -835,8 +782,6 @@
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
-# CONFIG_EEPROM_AT24 is not set
-# CONFIG_EEPROM_LEGACY is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set
@@ -975,26 +920,7 @@
# Special HID drivers
#
CONFIG_HID_COMPAT=y
-CONFIG_USB_SUPPORT=y
-CONFIG_USB_ARCH_HAS_HCD=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
-# CONFIG_USB_OTG_WHITELIST is not set
-# CONFIG_USB_OTG_BLACKLIST_HUB is not set
-
-#
-# Enable Host or Gadget support to see Inventra options
-#
-
-#
-# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
-#
-# CONFIG_USB_GADGET is not set
-
-#
-# OTG and related infrastructure
-#
+# CONFIG_USB_SUPPORT is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
@@ -1064,16 +990,9 @@
#
# File systems
#
-CONFIG_EXT2_FS=y
-# CONFIG_EXT2_FS_XATTR is not set
-# CONFIG_EXT2_FS_XIP is not set
-CONFIG_EXT3_FS=y
-CONFIG_EXT3_FS_XATTR=y
-# CONFIG_EXT3_FS_POSIX_ACL is not set
-# CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
-CONFIG_JBD=y
-CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
@@ -1122,8 +1041,17 @@
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
-# CONFIG_JFFS2_FS is not set
-# CONFIG_UBIFS_FS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_FS_DEBUG=0
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+# CONFIG_JFFS2_SUMMARY is not set
+# CONFIG_JFFS2_FS_XATTR is not set
+# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
@@ -1184,6 +1112,8 @@
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
@@ -1219,6 +1149,7 @@
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_HIGHMEM is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
@@ -1236,6 +1167,7 @@
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index 6d406c5..9696cc3 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -27,7 +27,7 @@
PPC_LONG "1b,4b,2b,4b\n" \
".previous" \
: "=&r" (oldval), "=&r" (ret) \
- : "b" (uaddr), "i" (-EFAULT), "1" (oparg) \
+ : "b" (uaddr), "i" (-EFAULT), "r" (oparg) \
: "cr0", "memory")
static inline int futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
@@ -47,19 +47,19 @@
switch (op) {
case FUTEX_OP_SET:
- __futex_atomic_op("", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("mr %1,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ADD:
- __futex_atomic_op("add %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("add %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_OR:
- __futex_atomic_op("or %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("or %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ANDN:
- __futex_atomic_op("andc %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("andc %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_XOR:
- __futex_atomic_op("xor %1,%0,%1\n", ret, oldval, uaddr, oparg);
+ __futex_atomic_op("xor %1,%0,%4\n", ret, oldval, uaddr, oparg);
break;
default:
ret = -ENOSYS;
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index cbf1543..86d2366 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -52,6 +52,12 @@
*/
#define MMU_FTR_NEED_DTLB_SW_LRU ASM_CONST(0x00200000)
+/* This indicates that the processor uses the wrong opcode for tlbilx
+ * instructions. During the ISA 2.06 development the opcode for tlbilx
+ * changed and some early implementations used to old opcode
+ */
+#define MMU_FTR_TLBILX_EARLY_OPCODE ASM_CONST(0x00400000)
+
#ifndef __ASSEMBLY__
#include <asm/cputable.h>
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h
index 414c50e..94942d6 100644
--- a/arch/powerpc/include/asm/parport.h
+++ b/arch/powerpc/include/asm/parport.h
@@ -29,7 +29,7 @@
prop = of_get_property(np, "interrupts", NULL);
if (!prop)
continue;
- if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL) != NULL)
+ if (parport_pc_probe_port(io1, io2, prop[0], autodma, NULL, 0) != NULL)
count++;
}
return count;
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index f4a4db8..ef4da37 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -43,7 +43,8 @@
#define PPC_INST_STSWI 0x7c0005aa
#define PPC_INST_STSWX 0x7c00052a
-#define PPC_INST_TLBILX 0x7c000626
+#define PPC_INST_TLBILX 0x7c000024
+#define PPC_INST_TLBILX_EARLY 0x7c000626
#define PPC_INST_WAIT 0x7c00007c
/* macros to insert fields into opcodes */
@@ -63,10 +64,18 @@
#define PPC_RFDI stringify_in_c(.long PPC_INST_RFDI)
#define PPC_RFMCI stringify_in_c(.long PPC_INST_RFMCI)
#define PPC_TLBILX(t, a, b) stringify_in_c(.long PPC_INST_TLBILX | \
- __PPC_T_TLB(t) | __PPC_RA(a) | __PPC_RB(b))
+ __PPC_T_TLB(t) | \
+ __PPC_RA(a) | __PPC_RB(b))
#define PPC_TLBILX_ALL(a, b) PPC_TLBILX(0, a, b)
#define PPC_TLBILX_PID(a, b) PPC_TLBILX(1, a, b)
#define PPC_TLBILX_VA(a, b) PPC_TLBILX(3, a, b)
+
+#define PPC_TLBILX_EARLY(t, a, b) stringify_in_c(.long PPC_INST_TLBILX_EARLY | \
+ __PPC_T_TLB(t) | \
+ __PPC_RA(a) | __PPC_RB(b))
+#define PPC_TLBILX_ALL_EARLY(a, b) PPC_TLBILX_EARLY(0, a, b)
+#define PPC_TLBILX_PID_EARLY(a, b) PPC_TLBILX_EARLY(1, a, b)
+#define PPC_TLBILX_VA_EARLY(a, b) PPC_TLBILX_EARLY(3, a, b)
#define PPC_WAIT(w) stringify_in_c(.long PPC_INST_WAIT | \
__PPC_WC(w))
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index cd1b687..57db50f 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1766,7 +1766,7 @@
.cpu_features = CPU_FTRS_E500MC,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
- MMU_FTR_USE_TLBILX,
+ MMU_FTR_USE_TLBILX | MMU_FTR_TLBILX_EARLY_OPCODE,
.icache_bsize = 64,
.dcache_bsize = 64,
.num_pmcs = 4,
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 7af7297..ad2eb4d 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -125,7 +125,6 @@
void flush_tlb_mm(struct mm_struct *mm)
{
- cpumask_t cpu_mask;
unsigned int pid;
preempt_disable();
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index 788b87c..45fed36 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -138,7 +138,11 @@
andi. r3,r3,MMUCSR0_TLBFI@l
bne 1b
MMU_FTR_SECTION_ELSE
- PPC_TLBILX_ALL(0,0)
+ BEGIN_MMU_FTR_SECTION_NESTED(96)
+ PPC_TLBILX_ALL(0,r3)
+ MMU_FTR_SECTION_ELSE_NESTED(96)
+ PPC_TLBILX_ALL_EARLY(0,r3)
+ ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
msync
isync
@@ -151,7 +155,11 @@
wrteei 0
mfspr r4,SPRN_MAS6 /* save MAS6 */
mtspr SPRN_MAS6,r3
+ BEGIN_MMU_FTR_SECTION_NESTED(96)
PPC_TLBILX_PID(0,0)
+ MMU_FTR_SECTION_ELSE_NESTED(96)
+ PPC_TLBILX_PID_EARLY(0,0)
+ ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
mtspr SPRN_MAS6,r4 /* restore MAS6 */
wrtee r10
MMU_FTR_SECTION_ELSE
@@ -185,7 +193,11 @@
mtspr SPRN_MAS1,r4
tlbwe
MMU_FTR_SECTION_ELSE
+ BEGIN_MMU_FTR_SECTION_NESTED(96)
PPC_TLBILX_VA(0,r3)
+ MMU_FTR_SECTION_ELSE_NESTED(96)
+ PPC_TLBILX_VA_EARLY(0,r3)
+ ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
msync
isync
diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index fafcaa0..ab69925 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -25,6 +25,7 @@
#include <asm/smp.h>
#include <asm/system.h>
#include <asm/uaccess.h>
+#include <asm/firmware.h>
#include "plpar_wrappers.h"
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 380420f..9a2a6e3 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -182,6 +182,8 @@
if (!driver)
return;
+ dev->error_state = pci_channel_io_normal;
+
eeh_enable_irq(dev);
if (!driver->err_handler ||
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5e4babe..e7390dd 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,6 +14,7 @@
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IOREMAP_PROT if MMU
select HAVE_ARCH_TRACEHOOK
+ select HAVE_DMA_API_DEBUG
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
@@ -21,7 +22,7 @@
<http://www.linux-sh.org/>.
config SUPERH32
- def_bool !SUPERH64
+ def_bool ARCH = "sh"
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_FUNCTION_TRACER
@@ -31,7 +32,7 @@
select ARCH_HIBERNATION_POSSIBLE if MMU
config SUPERH64
- def_bool y if CPU_SH5
+ def_bool ARCH = "sh64"
config ARCH_DEFCONFIG
string
@@ -187,6 +188,8 @@
bool
select ARCH_SUSPEND_POSSIBLE
+if SUPERH32
+
choice
prompt "Processor sub-type selection"
@@ -408,6 +411,15 @@
select SYS_SUPPORTS_NUMA
select SYS_SUPPORTS_CMT
+endchoice
+
+endif
+
+if SUPERH64
+
+choice
+ prompt "Processor sub-type selection"
+
# SH-5 Processor Support
config CPU_SUBTYPE_SH5_101
@@ -420,6 +432,8 @@
endchoice
+endif
+
source "arch/sh/mm/Kconfig"
source "arch/sh/Kconfig.cpu"
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 912458f..39e4691 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -349,6 +349,7 @@
static struct ov772x_camera_info ov7725_info = {
.buswidth = SOCAM_DATAWIDTH_8,
.flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
+ .edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
.link = {
.power = ov7725_power,
},
diff --git a/arch/sh/boards/board-urquell.c b/arch/sh/boards/board-urquell.c
index 8367d1d..beb88c4 100644
--- a/arch/sh/boards/board-urquell.c
+++ b/arch/sh/boards/board-urquell.c
@@ -2,6 +2,8 @@
* Renesas Technology Corp. SH7786 Urquell Support.
*
* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Based on board-sh7785lcr.c
* Copyright (C) 2008 Yoshihiro Shimoda
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -21,6 +23,32 @@
#include <asm/heartbeat.h>
#include <asm/sizes.h>
+/*
+ * bit 1234 5678
+ *----------------------------
+ * SW1 0101 0010 -> Pck 33MHz version
+ * (1101 0010) Pck 66MHz version
+ * SW2 0x1x xxxx -> little endian
+ * 29bit mode
+ * SW47 0001 1000 -> CS0 : on-board flash
+ * CS1 : SRAM, registers, LAN, PCMCIA
+ * 38400 bps for SCIF1
+ *
+ * Address
+ * 0x00000000 - 0x04000000 (CS0) Nor Flash
+ * 0x04000000 - 0x04200000 (CS1) SRAM
+ * 0x05000000 - 0x05800000 (CS1) on board register
+ * 0x05800000 - 0x06000000 (CS1) LAN91C111
+ * 0x06000000 - 0x06400000 (CS1) PCMCIA
+ * 0x08000000 - 0x10000000 (CS2-CS3) DDR3
+ * 0x10000000 - 0x14000000 (CS4) PCIe
+ * 0x14000000 - 0x14800000 (CS5) Core0 LRAM/URAM
+ * 0x14800000 - 0x15000000 (CS5) Core1 LRAM/URAM
+ * 0x18000000 - 0x1C000000 (CS6) ATA/NAND-Flash
+ * 0x1C000000 - (CS7) SH7786 Control register
+ */
+
+/* HeartBeat */
static struct resource heartbeat_resources[] = {
[0] = {
.start = BOARDREG(SLEDR),
@@ -43,6 +71,7 @@
.resource = heartbeat_resources,
};
+/* LAN91C111 */
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
};
@@ -69,6 +98,7 @@
},
};
+/* Nor Flash */
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "loader",
diff --git a/arch/sh/drivers/pci/ops-sh7785lcr.c b/arch/sh/drivers/pci/ops-sh7785lcr.c
index e8b7446..fb0869f 100644
--- a/arch/sh/drivers/pci/ops-sh7785lcr.c
+++ b/arch/sh/drivers/pci/ops-sh7785lcr.c
@@ -48,8 +48,13 @@
static struct sh4_pci_address_map sh7785_pci_map = {
.window0 = {
+#if defined(CONFIG_32BIT)
+ .base = SH7780_32BIT_DDR_BASE_ADDR,
+ .size = 0x40000000,
+#else
.base = SH7780_CS0_BASE_ADDR,
.size = 0x20000000,
+#endif
},
.flags = SH4_PCIC_NO_RESET,
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h
index 97b2c98..93adc71 100644
--- a/arch/sh/drivers/pci/pci-sh7780.h
+++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -104,6 +104,8 @@
#define SH7780_CS5_BASE_ADDR (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE)
#define SH7780_CS6_BASE_ADDR (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE)
+#define SH7780_32BIT_DDR_BASE_ADDR 0x40000000
+
struct sh4_pci_address_map;
/* arch/sh/drivers/pci/pci-sh7780.c */
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index e36c7b8..0d6ac7a1 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -19,6 +19,7 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/dma-debug.h>
#include <asm/io.h>
static int __init pcibios_init(void)
@@ -43,6 +44,8 @@
pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
+ dma_debug_add_bus(&pci_bus_type);
+
return 0;
}
subsys_initcall(pcibios_init);
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 627315e..ea9d4f4 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
+#include <linux/dma-debug.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
#include <asm-generic/dma-coherent.h>
@@ -38,16 +39,26 @@
void *ptr, size_t size,
enum dma_data_direction dir)
{
+ dma_addr_t addr = virt_to_phys(ptr);
+
#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
if (dev->bus == &pci_bus_type)
- return virt_to_phys(ptr);
+ return addr;
#endif
dma_cache_sync(dev, ptr, size, dir);
- return virt_to_phys(ptr);
+ debug_dma_map_page(dev, virt_to_page(ptr),
+ (unsigned long)ptr & ~PAGE_MASK, size,
+ dir, addr, true);
+
+ return addr;
}
-#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
+static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir)
+{
+ debug_dma_unmap_page(dev, addr, size, dir, true);
+}
static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
@@ -59,12 +70,19 @@
dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
#endif
sg[i].dma_address = sg_phys(&sg[i]);
+ sg[i].dma_length = sg[i].length;
}
+ debug_dma_map_sg(dev, sg, nents, i, dir);
+
return nents;
}
-#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction dir)
+{
+ debug_dma_unmap_sg(dev, sg, nents, dir);
+}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
@@ -111,6 +129,7 @@
dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
#endif
sg[i].dma_address = sg_phys(&sg[i]);
+ sg[i].dma_length = sg[i].length;
}
}
@@ -119,6 +138,7 @@
enum dma_data_direction dir)
{
dma_sync_single(dev, dma_handle, size, dir);
+ debug_dma_sync_single_for_cpu(dev, dma_handle, size, dir);
}
static inline void dma_sync_single_for_device(struct device *dev,
@@ -127,6 +147,7 @@
enum dma_data_direction dir)
{
dma_sync_single(dev, dma_handle, size, dir);
+ debug_dma_sync_single_for_device(dev, dma_handle, size, dir);
}
static inline void dma_sync_single_range_for_cpu(struct device *dev,
@@ -136,6 +157,8 @@
enum dma_data_direction direction)
{
dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+ debug_dma_sync_single_range_for_cpu(dev, dma_handle,
+ offset, size, direction);
}
static inline void dma_sync_single_range_for_device(struct device *dev,
@@ -145,6 +168,8 @@
enum dma_data_direction direction)
{
dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+ debug_dma_sync_single_range_for_device(dev, dma_handle,
+ offset, size, direction);
}
@@ -153,6 +178,7 @@
enum dma_data_direction dir)
{
dma_sync_sg(dev, sg, nelems, dir);
+ debug_dma_sync_sg_for_cpu(dev, sg, nelems, dir);
}
static inline void dma_sync_sg_for_device(struct device *dev,
@@ -160,9 +186,9 @@
enum dma_data_direction dir)
{
dma_sync_sg(dev, sg, nelems, dir);
+ debug_dma_sync_sg_for_device(dev, sg, nelems, dir);
}
-
static inline int dma_get_cache_alignment(void)
{
/*
diff --git a/arch/sh/include/asm/scatterlist.h b/arch/sh/include/asm/scatterlist.h
index 2084d03..c693d26 100644
--- a/arch/sh/include/asm/scatterlist.h
+++ b/arch/sh/include/asm/scatterlist.h
@@ -5,12 +5,13 @@
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
- unsigned long sg_magic;
+ unsigned long sg_magic;
#endif
- unsigned long page_link;
- unsigned int offset;/* for highmem, page offset */
- dma_addr_t dma_address;
- unsigned int length;
+ unsigned long page_link;
+ unsigned int offset; /* for highmem, page offset */
+ unsigned int length;
+ dma_addr_t dma_address;
+ unsigned int dma_length;
};
#define ISA_DMA_THRESHOLD PHYS_ADDR_MASK
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index a3f2395..8489a09 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -37,8 +37,11 @@
#define pcibus_to_node(bus) ((void)(bus), -1)
#define pcibus_to_cpumask(bus) (pcibus_to_node(bus) == -1 ? \
CPU_MASK_ALL : \
- node_to_cpumask(pcibus_to_node(bus)) \
- )
+ node_to_cpumask(pcibus_to_node(bus)))
+#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
+ CPU_MASK_ALL_PTR : \
+ cpumask_of_node(pcibus_to_node(bus)))
+
#endif
#include <asm-generic/topology.h>
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index d52c000..2efb819 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -341,8 +341,10 @@
#define __NR_dup3 330
#define __NR_pipe2 331
#define __NR_inotify_init1 332
+#define __NR_preadv 333
+#define __NR_pwritev 334
-#define NR_syscalls 333
+#define NR_syscalls 335
#ifdef __KERNEL__
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index 7c54e91..6eb9d29 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -381,10 +381,12 @@
#define __NR_dup3 358
#define __NR_pipe2 359
#define __NR_inotify_init1 360
+#define __NR_preadv 361
+#define __NR_pwritev 362
#ifdef __KERNEL__
-#define NR_syscalls 361
+#define NR_syscalls 363
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
index 5a47e1c..90e8cff 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c
@@ -143,14 +143,14 @@
* Set the PHY and PLL enable bit
*/
__raw_writel(PHY_ENB | PLL_ENB, USBPCTL1);
- while (i-- &&
- ((__raw_readl(USBST) & ACT_PLL_STATUS) != ACT_PLL_STATUS))
+ while (i--) {
+ if (ACT_PLL_STATUS == (__raw_readl(USBST) & ACT_PLL_STATUS)) {
+ /* Set the PHY RST bit */
+ __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
+ printk(KERN_INFO "sh7786 usb setup done\n");
+ break;
+ }
cpu_relax();
-
- if (i) {
- /* Set the PHY RST bit */
- __raw_writel(PHY_ENB | PLL_ENB | PHY_RST, USBPCTL1);
- printk(KERN_INFO "sh7786 usb setup done\n");
}
}
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index e67c173..05202ed 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -349,3 +349,5 @@
.long sys_dup3 /* 330 */
.long sys_pipe2
.long sys_inotify_init1
+ .long sys_preadv
+ .long sys_writev
diff --git a/arch/sh/kernel/syscalls_64.S b/arch/sh/kernel/syscalls_64.S
index 557cb91..a083609 100644
--- a/arch/sh/kernel/syscalls_64.S
+++ b/arch/sh/kernel/syscalls_64.S
@@ -387,3 +387,5 @@
.long sys_dup3
.long sys_pipe2
.long sys_inotify_init1 /* 360 */
+ .long sys_preadv
+ .long sys_pwritev
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index edcd5fb..e098ec1 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -10,11 +10,22 @@
* for more details.
*/
#include <linux/mm.h>
+#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
+#include <linux/io.h>
#include <asm/cacheflush.h>
#include <asm/addrspace.h>
-#include <asm/io.h>
+
+#define PREALLOC_DMA_DEBUG_ENTRIES 4096
+
+static int __init dma_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+ return 0;
+}
+fs_initcall(dma_init);
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
@@ -45,6 +56,9 @@
split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
*dma_handle = virt_to_phys(ret);
+
+ debug_dma_alloc_coherent(dev, size, *dma_handle, ret_nocache);
+
return ret_nocache;
}
EXPORT_SYMBOL(dma_alloc_coherent);
@@ -56,12 +70,15 @@
unsigned long pfn = dma_handle >> PAGE_SHIFT;
int k;
- if (!dma_release_from_coherent(dev, order, vaddr)) {
- WARN_ON(irqs_disabled()); /* for portability */
- for (k = 0; k < (1 << order); k++)
- __free_pages(pfn_to_page(pfn + k), 0);
- iounmap(vaddr);
- }
+ WARN_ON(irqs_disabled()); /* for portability */
+
+ if (dma_release_from_coherent(dev, order, vaddr))
+ return;
+
+ debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+ for (k = 0; k < (1 << order); k++)
+ __free_pages(pfn_to_page(pfn + k), 0);
+ iounmap(vaddr);
}
EXPORT_SYMBOL(dma_free_coherent);
diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
index dff3f02..ff9ead6 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -117,7 +117,7 @@
if (!strcmp(parent->name, "dma")) {
p = parport_pc_probe_port(base, base + 0x400,
op->irqs[0], PARPORT_DMA_NOFIFO,
- op->dev.parent->parent);
+ op->dev.parent->parent, 0);
if (!p)
return -ENOMEM;
dev_set_drvdata(&op->dev, p);
@@ -168,7 +168,8 @@
p = parport_pc_probe_port(base, base + 0x400,
op->irqs[0],
slot,
- op->dev.parent);
+ op->dev.parent,
+ 0);
err = -ENOMEM;
if (!p)
goto out_disable_irq;
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 837c2c4..ecdb682 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -204,7 +204,13 @@
static void drv_write(struct drv_cmd *cmd)
{
+ int this_cpu;
+
+ this_cpu = get_cpu();
+ if (cpumask_test_cpu(this_cpu, cmd->mask))
+ do_drv_write(cmd);
smp_call_function_many(cmd->mask, do_drv_write, cmd, 1);
+ put_cpu();
}
static u32 get_cur_val(const struct cpumask *mask)
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index a0f3851..2e0eb41 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -108,40 +108,29 @@
EXPORT_SYMBOL_GPL(ucode_cpu_info);
#ifdef CONFIG_MICROCODE_OLD_INTERFACE
-struct update_for_cpu {
- const void __user *buf;
- size_t size;
-};
-
-static long update_for_cpu(void *_ufc)
-{
- struct update_for_cpu *ufc = _ufc;
- int error;
-
- error = microcode_ops->request_microcode_user(smp_processor_id(),
- ufc->buf, ufc->size);
- if (error < 0)
- return error;
- if (!error)
- microcode_ops->apply_microcode(smp_processor_id());
- return error;
-}
-
static int do_microcode_update(const void __user *buf, size_t size)
{
+ cpumask_t old;
int error = 0;
int cpu;
- struct update_for_cpu ufc = { .buf = buf, .size = size };
+
+ old = current->cpus_allowed;
for_each_online_cpu(cpu) {
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
if (!uci->valid)
continue;
- error = work_on_cpu(cpu, update_for_cpu, &ufc);
+
+ set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
+ error = microcode_ops->request_microcode_user(cpu, buf, size);
if (error < 0)
- break;
+ goto out;
+ if (!error)
+ microcode_ops->apply_microcode(cpu);
}
+out:
+ set_cpus_allowed_ptr(current, &old);
return error;
}
diff --git a/block/as-iosched.c b/block/as-iosched.c
index 631f6f4..c48fa67 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -17,9 +17,6 @@
#include <linux/rbtree.h>
#include <linux/interrupt.h>
-#define REQ_SYNC 1
-#define REQ_ASYNC 0
-
/*
* See Documentation/block/as-iosched.txt
*/
@@ -93,7 +90,7 @@
struct list_head fifo_list[2];
struct request *next_rq[2]; /* next in sort order */
- sector_t last_sector[2]; /* last REQ_SYNC & REQ_ASYNC sectors */
+ sector_t last_sector[2]; /* last SYNC & ASYNC sectors */
unsigned long exit_prob; /* probability a task will exit while
being waited on */
@@ -109,7 +106,7 @@
unsigned long last_check_fifo[2];
int changed_batch; /* 1: waiting for old batch to end */
int new_batch; /* 1: waiting on first read complete */
- int batch_data_dir; /* current batch REQ_SYNC / REQ_ASYNC */
+ int batch_data_dir; /* current batch SYNC / ASYNC */
int write_batch_count; /* max # of reqs in a write batch */
int current_write_count; /* how many requests left this batch */
int write_batch_idled; /* has the write batch gone idle? */
@@ -554,7 +551,7 @@
if (aic == NULL)
return;
- if (data_dir == REQ_SYNC) {
+ if (data_dir == BLK_RW_SYNC) {
unsigned long in_flight = atomic_read(&aic->nr_queued)
+ atomic_read(&aic->nr_dispatched);
spin_lock(&aic->lock);
@@ -811,7 +808,7 @@
*/
static void update_write_batch(struct as_data *ad)
{
- unsigned long batch = ad->batch_expire[REQ_ASYNC];
+ unsigned long batch = ad->batch_expire[BLK_RW_ASYNC];
long write_time;
write_time = (jiffies - ad->current_batch_expires) + batch;
@@ -855,7 +852,7 @@
kblockd_schedule_work(q, &ad->antic_work);
ad->changed_batch = 0;
- if (ad->batch_data_dir == REQ_SYNC)
+ if (ad->batch_data_dir == BLK_RW_SYNC)
ad->new_batch = 1;
}
WARN_ON(ad->nr_dispatched == 0);
@@ -869,7 +866,7 @@
if (ad->new_batch && ad->batch_data_dir == rq_is_sync(rq)) {
update_write_batch(ad);
ad->current_batch_expires = jiffies +
- ad->batch_expire[REQ_SYNC];
+ ad->batch_expire[BLK_RW_SYNC];
ad->new_batch = 0;
}
@@ -960,7 +957,7 @@
if (ad->changed_batch || ad->new_batch)
return 0;
- if (ad->batch_data_dir == REQ_SYNC)
+ if (ad->batch_data_dir == BLK_RW_SYNC)
/* TODO! add a check so a complete fifo gets written? */
return time_after(jiffies, ad->current_batch_expires);
@@ -986,7 +983,7 @@
*/
ad->last_sector[data_dir] = rq->sector + rq->nr_sectors;
- if (data_dir == REQ_SYNC) {
+ if (data_dir == BLK_RW_SYNC) {
struct io_context *ioc = RQ_IOC(rq);
/* In case we have to anticipate after this */
copy_io_context(&ad->io_context, &ioc);
@@ -1025,41 +1022,41 @@
static int as_dispatch_request(struct request_queue *q, int force)
{
struct as_data *ad = q->elevator->elevator_data;
- const int reads = !list_empty(&ad->fifo_list[REQ_SYNC]);
- const int writes = !list_empty(&ad->fifo_list[REQ_ASYNC]);
+ const int reads = !list_empty(&ad->fifo_list[BLK_RW_SYNC]);
+ const int writes = !list_empty(&ad->fifo_list[BLK_RW_ASYNC]);
struct request *rq;
if (unlikely(force)) {
/*
* Forced dispatch, accounting is useless. Reset
* accounting states and dump fifo_lists. Note that
- * batch_data_dir is reset to REQ_SYNC to avoid
+ * batch_data_dir is reset to BLK_RW_SYNC to avoid
* screwing write batch accounting as write batch
* accounting occurs on W->R transition.
*/
int dispatched = 0;
- ad->batch_data_dir = REQ_SYNC;
+ ad->batch_data_dir = BLK_RW_SYNC;
ad->changed_batch = 0;
ad->new_batch = 0;
- while (ad->next_rq[REQ_SYNC]) {
- as_move_to_dispatch(ad, ad->next_rq[REQ_SYNC]);
+ while (ad->next_rq[BLK_RW_SYNC]) {
+ as_move_to_dispatch(ad, ad->next_rq[BLK_RW_SYNC]);
dispatched++;
}
- ad->last_check_fifo[REQ_SYNC] = jiffies;
+ ad->last_check_fifo[BLK_RW_SYNC] = jiffies;
- while (ad->next_rq[REQ_ASYNC]) {
- as_move_to_dispatch(ad, ad->next_rq[REQ_ASYNC]);
+ while (ad->next_rq[BLK_RW_ASYNC]) {
+ as_move_to_dispatch(ad, ad->next_rq[BLK_RW_ASYNC]);
dispatched++;
}
- ad->last_check_fifo[REQ_ASYNC] = jiffies;
+ ad->last_check_fifo[BLK_RW_ASYNC] = jiffies;
return dispatched;
}
/* Signal that the write batch was uncontended, so we can't time it */
- if (ad->batch_data_dir == REQ_ASYNC && !reads) {
+ if (ad->batch_data_dir == BLK_RW_ASYNC && !reads) {
if (ad->current_write_count == 0 || !writes)
ad->write_batch_idled = 1;
}
@@ -1076,8 +1073,8 @@
*/
rq = ad->next_rq[ad->batch_data_dir];
- if (ad->batch_data_dir == REQ_SYNC && ad->antic_expire) {
- if (as_fifo_expired(ad, REQ_SYNC))
+ if (ad->batch_data_dir == BLK_RW_SYNC && ad->antic_expire) {
+ if (as_fifo_expired(ad, BLK_RW_SYNC))
goto fifo_expired;
if (as_can_anticipate(ad, rq)) {
@@ -1090,7 +1087,7 @@
/* we have a "next request" */
if (reads && !writes)
ad->current_batch_expires =
- jiffies + ad->batch_expire[REQ_SYNC];
+ jiffies + ad->batch_expire[BLK_RW_SYNC];
goto dispatch_request;
}
}
@@ -1101,20 +1098,20 @@
*/
if (reads) {
- BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[REQ_SYNC]));
+ BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[BLK_RW_SYNC]));
- if (writes && ad->batch_data_dir == REQ_SYNC)
+ if (writes && ad->batch_data_dir == BLK_RW_SYNC)
/*
* Last batch was a read, switch to writes
*/
goto dispatch_writes;
- if (ad->batch_data_dir == REQ_ASYNC) {
+ if (ad->batch_data_dir == BLK_RW_ASYNC) {
WARN_ON(ad->new_batch);
ad->changed_batch = 1;
}
- ad->batch_data_dir = REQ_SYNC;
- rq = rq_entry_fifo(ad->fifo_list[REQ_SYNC].next);
+ ad->batch_data_dir = BLK_RW_SYNC;
+ rq = rq_entry_fifo(ad->fifo_list[BLK_RW_SYNC].next);
ad->last_check_fifo[ad->batch_data_dir] = jiffies;
goto dispatch_request;
}
@@ -1125,9 +1122,9 @@
if (writes) {
dispatch_writes:
- BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[REQ_ASYNC]));
+ BUG_ON(RB_EMPTY_ROOT(&ad->sort_list[BLK_RW_ASYNC]));
- if (ad->batch_data_dir == REQ_SYNC) {
+ if (ad->batch_data_dir == BLK_RW_SYNC) {
ad->changed_batch = 1;
/*
@@ -1137,11 +1134,11 @@
*/
ad->new_batch = 0;
}
- ad->batch_data_dir = REQ_ASYNC;
+ ad->batch_data_dir = BLK_RW_ASYNC;
ad->current_write_count = ad->write_batch_count;
ad->write_batch_idled = 0;
- rq = rq_entry_fifo(ad->fifo_list[REQ_ASYNC].next);
- ad->last_check_fifo[REQ_ASYNC] = jiffies;
+ rq = rq_entry_fifo(ad->fifo_list[BLK_RW_ASYNC].next);
+ ad->last_check_fifo[BLK_RW_ASYNC] = jiffies;
goto dispatch_request;
}
@@ -1164,9 +1161,9 @@
if (ad->nr_dispatched)
return 0;
- if (ad->batch_data_dir == REQ_ASYNC)
+ if (ad->batch_data_dir == BLK_RW_ASYNC)
ad->current_batch_expires = jiffies +
- ad->batch_expire[REQ_ASYNC];
+ ad->batch_expire[BLK_RW_ASYNC];
else
ad->new_batch = 1;
@@ -1238,8 +1235,8 @@
{
struct as_data *ad = q->elevator->elevator_data;
- return list_empty(&ad->fifo_list[REQ_ASYNC])
- && list_empty(&ad->fifo_list[REQ_SYNC]);
+ return list_empty(&ad->fifo_list[BLK_RW_ASYNC])
+ && list_empty(&ad->fifo_list[BLK_RW_SYNC]);
}
static int
@@ -1346,8 +1343,8 @@
del_timer_sync(&ad->antic_timer);
cancel_work_sync(&ad->antic_work);
- BUG_ON(!list_empty(&ad->fifo_list[REQ_SYNC]));
- BUG_ON(!list_empty(&ad->fifo_list[REQ_ASYNC]));
+ BUG_ON(!list_empty(&ad->fifo_list[BLK_RW_SYNC]));
+ BUG_ON(!list_empty(&ad->fifo_list[BLK_RW_ASYNC]));
put_io_context(ad->io_context);
kfree(ad);
@@ -1372,18 +1369,18 @@
init_timer(&ad->antic_timer);
INIT_WORK(&ad->antic_work, as_work_handler);
- INIT_LIST_HEAD(&ad->fifo_list[REQ_SYNC]);
- INIT_LIST_HEAD(&ad->fifo_list[REQ_ASYNC]);
- ad->sort_list[REQ_SYNC] = RB_ROOT;
- ad->sort_list[REQ_ASYNC] = RB_ROOT;
- ad->fifo_expire[REQ_SYNC] = default_read_expire;
- ad->fifo_expire[REQ_ASYNC] = default_write_expire;
+ INIT_LIST_HEAD(&ad->fifo_list[BLK_RW_SYNC]);
+ INIT_LIST_HEAD(&ad->fifo_list[BLK_RW_ASYNC]);
+ ad->sort_list[BLK_RW_SYNC] = RB_ROOT;
+ ad->sort_list[BLK_RW_ASYNC] = RB_ROOT;
+ ad->fifo_expire[BLK_RW_SYNC] = default_read_expire;
+ ad->fifo_expire[BLK_RW_ASYNC] = default_write_expire;
ad->antic_expire = default_antic_expire;
- ad->batch_expire[REQ_SYNC] = default_read_batch_expire;
- ad->batch_expire[REQ_ASYNC] = default_write_batch_expire;
+ ad->batch_expire[BLK_RW_SYNC] = default_read_batch_expire;
+ ad->batch_expire[BLK_RW_ASYNC] = default_write_batch_expire;
- ad->current_batch_expires = jiffies + ad->batch_expire[REQ_SYNC];
- ad->write_batch_count = ad->batch_expire[REQ_ASYNC] / 10;
+ ad->current_batch_expires = jiffies + ad->batch_expire[BLK_RW_SYNC];
+ ad->write_batch_count = ad->batch_expire[BLK_RW_ASYNC] / 10;
if (ad->write_batch_count < 2)
ad->write_batch_count = 2;
@@ -1432,11 +1429,11 @@
struct as_data *ad = e->elevator_data; \
return as_var_show(jiffies_to_msecs((__VAR)), (page)); \
}
-SHOW_FUNCTION(as_read_expire_show, ad->fifo_expire[REQ_SYNC]);
-SHOW_FUNCTION(as_write_expire_show, ad->fifo_expire[REQ_ASYNC]);
+SHOW_FUNCTION(as_read_expire_show, ad->fifo_expire[BLK_RW_SYNC]);
+SHOW_FUNCTION(as_write_expire_show, ad->fifo_expire[BLK_RW_ASYNC]);
SHOW_FUNCTION(as_antic_expire_show, ad->antic_expire);
-SHOW_FUNCTION(as_read_batch_expire_show, ad->batch_expire[REQ_SYNC]);
-SHOW_FUNCTION(as_write_batch_expire_show, ad->batch_expire[REQ_ASYNC]);
+SHOW_FUNCTION(as_read_batch_expire_show, ad->batch_expire[BLK_RW_SYNC]);
+SHOW_FUNCTION(as_write_batch_expire_show, ad->batch_expire[BLK_RW_ASYNC]);
#undef SHOW_FUNCTION
#define STORE_FUNCTION(__FUNC, __PTR, MIN, MAX) \
@@ -1451,13 +1448,14 @@
*(__PTR) = msecs_to_jiffies(*(__PTR)); \
return ret; \
}
-STORE_FUNCTION(as_read_expire_store, &ad->fifo_expire[REQ_SYNC], 0, INT_MAX);
-STORE_FUNCTION(as_write_expire_store, &ad->fifo_expire[REQ_ASYNC], 0, INT_MAX);
+STORE_FUNCTION(as_read_expire_store, &ad->fifo_expire[BLK_RW_SYNC], 0, INT_MAX);
+STORE_FUNCTION(as_write_expire_store,
+ &ad->fifo_expire[BLK_RW_ASYNC], 0, INT_MAX);
STORE_FUNCTION(as_antic_expire_store, &ad->antic_expire, 0, INT_MAX);
STORE_FUNCTION(as_read_batch_expire_store,
- &ad->batch_expire[REQ_SYNC], 0, INT_MAX);
+ &ad->batch_expire[BLK_RW_SYNC], 0, INT_MAX);
STORE_FUNCTION(as_write_batch_expire_store,
- &ad->batch_expire[REQ_ASYNC], 0, INT_MAX);
+ &ad->batch_expire[BLK_RW_ASYNC], 0, INT_MAX);
#undef STORE_FUNCTION
#define AS_ATTR(name) \
diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index f7dae57..20b4111 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -319,9 +319,6 @@
return -ENXIO;
bio = bio_alloc(GFP_KERNEL, 0);
- if (!bio)
- return -ENOMEM;
-
bio->bi_end_io = bio_end_empty_barrier;
bio->bi_private = &wait;
bio->bi_bdev = bdev;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 73f36be..cac4e9f 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -209,14 +209,14 @@
ssize_t ret = queue_var_store(&stats, page, count);
spin_lock_irq(q->queue_lock);
- elv_quisce_start(q);
+ elv_quiesce_start(q);
if (stats)
queue_flag_set(QUEUE_FLAG_IO_STAT, q);
else
queue_flag_clear(QUEUE_FLAG_IO_STAT, q);
- elv_quisce_end(q);
+ elv_quiesce_end(q);
spin_unlock_irq(q->queue_lock);
return ret;
diff --git a/block/blk.h b/block/blk.h
index 24fcaee..5dfc412 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -70,8 +70,8 @@
int blk_dev_init(void);
-void elv_quisce_start(struct request_queue *q);
-void elv_quisce_end(struct request_queue *q);
+void elv_quiesce_start(struct request_queue *q);
+void elv_quiesce_end(struct request_queue *q);
/*
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index a4809de..0d3b70d 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -56,9 +56,6 @@
#define cfq_class_idle(cfqq) ((cfqq)->ioprio_class == IOPRIO_CLASS_IDLE)
#define cfq_class_rt(cfqq) ((cfqq)->ioprio_class == IOPRIO_CLASS_RT)
-#define ASYNC (0)
-#define SYNC (1)
-
#define sample_valid(samples) ((samples) > 80)
/*
@@ -83,6 +80,14 @@
* rr list of queues with requests and the count of them
*/
struct cfq_rb_root service_tree;
+
+ /*
+ * Each priority tree is sorted by next_request position. These
+ * trees are used when determining if two or more queues are
+ * interleaving requests (see cfq_close_cooperator).
+ */
+ struct rb_root prio_trees[CFQ_PRIO_LISTS];
+
unsigned int busy_queues;
/*
* Used to track any pending rt requests so we can pre-empt current
@@ -147,6 +152,8 @@
struct rb_node rb_node;
/* service_tree key */
unsigned long rb_key;
+ /* prio tree member */
+ struct rb_node p_node;
/* sorted list of pending requests */
struct rb_root sort_list;
/* if fifo isn't expired, next request to serve */
@@ -185,6 +192,7 @@
CFQ_CFQQ_FLAG_prio_changed, /* task priority has changed */
CFQ_CFQQ_FLAG_slice_new, /* no requests dispatched in slice */
CFQ_CFQQ_FLAG_sync, /* synchronous queue */
+ CFQ_CFQQ_FLAG_coop, /* has done a coop jump of the queue */
};
#define CFQ_CFQQ_FNS(name) \
@@ -211,6 +219,7 @@
CFQ_CFQQ_FNS(prio_changed);
CFQ_CFQQ_FNS(slice_new);
CFQ_CFQQ_FNS(sync);
+CFQ_CFQQ_FNS(coop);
#undef CFQ_CFQQ_FNS
#define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \
@@ -419,13 +428,17 @@
return NULL;
}
+static void rb_erase_init(struct rb_node *n, struct rb_root *root)
+{
+ rb_erase(n, root);
+ RB_CLEAR_NODE(n);
+}
+
static void cfq_rb_erase(struct rb_node *n, struct cfq_rb_root *root)
{
if (root->left == n)
root->left = NULL;
-
- rb_erase(n, &root->rb);
- RB_CLEAR_NODE(n);
+ rb_erase_init(n, &root->rb);
}
/*
@@ -470,8 +483,8 @@
* requests waiting to be processed. It is sorted in the order that
* we will service the queues.
*/
-static void cfq_service_tree_add(struct cfq_data *cfqd,
- struct cfq_queue *cfqq, int add_front)
+static void cfq_service_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq,
+ int add_front)
{
struct rb_node **p, *parent;
struct cfq_queue *__cfqq;
@@ -544,6 +557,63 @@
rb_insert_color(&cfqq->rb_node, &cfqd->service_tree.rb);
}
+static struct cfq_queue *
+cfq_prio_tree_lookup(struct cfq_data *cfqd, int ioprio, sector_t sector,
+ struct rb_node **ret_parent, struct rb_node ***rb_link)
+{
+ struct rb_root *root = &cfqd->prio_trees[ioprio];
+ struct rb_node **p, *parent;
+ struct cfq_queue *cfqq = NULL;
+
+ parent = NULL;
+ p = &root->rb_node;
+ while (*p) {
+ struct rb_node **n;
+
+ parent = *p;
+ cfqq = rb_entry(parent, struct cfq_queue, p_node);
+
+ /*
+ * Sort strictly based on sector. Smallest to the left,
+ * largest to the right.
+ */
+ if (sector > cfqq->next_rq->sector)
+ n = &(*p)->rb_right;
+ else if (sector < cfqq->next_rq->sector)
+ n = &(*p)->rb_left;
+ else
+ break;
+ p = n;
+ }
+
+ *ret_parent = parent;
+ if (rb_link)
+ *rb_link = p;
+ return NULL;
+}
+
+static void cfq_prio_tree_add(struct cfq_data *cfqd, struct cfq_queue *cfqq)
+{
+ struct rb_root *root = &cfqd->prio_trees[cfqq->ioprio];
+ struct rb_node **p, *parent;
+ struct cfq_queue *__cfqq;
+
+ if (!RB_EMPTY_NODE(&cfqq->p_node))
+ rb_erase_init(&cfqq->p_node, root);
+
+ if (cfq_class_idle(cfqq))
+ return;
+ if (!cfqq->next_rq)
+ return;
+
+ __cfqq = cfq_prio_tree_lookup(cfqd, cfqq->ioprio, cfqq->next_rq->sector,
+ &parent, &p);
+ BUG_ON(__cfqq);
+
+ rb_link_node(&cfqq->p_node, parent, p);
+ rb_insert_color(&cfqq->p_node, root);
+}
+
/*
* Update cfqq's position in the service tree.
*/
@@ -552,8 +622,10 @@
/*
* Resorting requires the cfqq to be on the RR list already.
*/
- if (cfq_cfqq_on_rr(cfqq))
+ if (cfq_cfqq_on_rr(cfqq)) {
cfq_service_tree_add(cfqd, cfqq, 0);
+ cfq_prio_tree_add(cfqd, cfqq);
+ }
}
/*
@@ -584,6 +656,8 @@
if (!RB_EMPTY_NODE(&cfqq->rb_node))
cfq_rb_erase(&cfqq->rb_node, &cfqd->service_tree);
+ if (!RB_EMPTY_NODE(&cfqq->p_node))
+ rb_erase_init(&cfqq->p_node, &cfqd->prio_trees[cfqq->ioprio]);
BUG_ON(!cfqd->busy_queues);
cfqd->busy_queues--;
@@ -613,7 +687,7 @@
{
struct cfq_queue *cfqq = RQ_CFQQ(rq);
struct cfq_data *cfqd = cfqq->cfqd;
- struct request *__alias;
+ struct request *__alias, *prev;
cfqq->queued[rq_is_sync(rq)]++;
@@ -630,7 +704,15 @@
/*
* check if this request is a better next-serve candidate
*/
+ prev = cfqq->next_rq;
cfqq->next_rq = cfq_choose_req(cfqd, cfqq->next_rq, rq);
+
+ /*
+ * adjust priority tree position, if ->next_rq changes
+ */
+ if (prev != cfqq->next_rq)
+ cfq_prio_tree_add(cfqd, cfqq);
+
BUG_ON(!cfqq->next_rq);
}
@@ -843,11 +925,15 @@
/*
* Get and set a new active queue for service.
*/
-static struct cfq_queue *cfq_set_active_queue(struct cfq_data *cfqd)
+static struct cfq_queue *cfq_set_active_queue(struct cfq_data *cfqd,
+ struct cfq_queue *cfqq)
{
- struct cfq_queue *cfqq;
+ if (!cfqq) {
+ cfqq = cfq_get_next_queue(cfqd);
+ if (cfqq)
+ cfq_clear_cfqq_coop(cfqq);
+ }
- cfqq = cfq_get_next_queue(cfqd);
__cfq_set_active_queue(cfqd, cfqq);
return cfqq;
}
@@ -871,17 +957,89 @@
return cfq_dist_from_last(cfqd, rq) <= cic->seek_mean;
}
-static int cfq_close_cooperator(struct cfq_data *cfq_data,
- struct cfq_queue *cfqq)
+static struct cfq_queue *cfqq_close(struct cfq_data *cfqd,
+ struct cfq_queue *cur_cfqq)
{
+ struct rb_root *root = &cfqd->prio_trees[cur_cfqq->ioprio];
+ struct rb_node *parent, *node;
+ struct cfq_queue *__cfqq;
+ sector_t sector = cfqd->last_position;
+
+ if (RB_EMPTY_ROOT(root))
+ return NULL;
+
+ /*
+ * First, if we find a request starting at the end of the last
+ * request, choose it.
+ */
+ __cfqq = cfq_prio_tree_lookup(cfqd, cur_cfqq->ioprio,
+ sector, &parent, NULL);
+ if (__cfqq)
+ return __cfqq;
+
+ /*
+ * If the exact sector wasn't found, the parent of the NULL leaf
+ * will contain the closest sector.
+ */
+ __cfqq = rb_entry(parent, struct cfq_queue, p_node);
+ if (cfq_rq_close(cfqd, __cfqq->next_rq))
+ return __cfqq;
+
+ if (__cfqq->next_rq->sector < sector)
+ node = rb_next(&__cfqq->p_node);
+ else
+ node = rb_prev(&__cfqq->p_node);
+ if (!node)
+ return NULL;
+
+ __cfqq = rb_entry(node, struct cfq_queue, p_node);
+ if (cfq_rq_close(cfqd, __cfqq->next_rq))
+ return __cfqq;
+
+ return NULL;
+}
+
+/*
+ * cfqd - obvious
+ * cur_cfqq - passed in so that we don't decide that the current queue is
+ * closely cooperating with itself.
+ *
+ * So, basically we're assuming that that cur_cfqq has dispatched at least
+ * one request, and that cfqd->last_position reflects a position on the disk
+ * associated with the I/O issued by cur_cfqq. I'm not sure this is a valid
+ * assumption.
+ */
+static struct cfq_queue *cfq_close_cooperator(struct cfq_data *cfqd,
+ struct cfq_queue *cur_cfqq,
+ int probe)
+{
+ struct cfq_queue *cfqq;
+
+ /*
+ * A valid cfq_io_context is necessary to compare requests against
+ * the seek_mean of the current cfqq.
+ */
+ if (!cfqd->active_cic)
+ return NULL;
+
/*
* We should notice if some of the queues are cooperating, eg
* working closely on the same area of the disk. In that case,
* we can group them together and don't waste time idling.
*/
- return 0;
+ cfqq = cfqq_close(cfqd, cur_cfqq);
+ if (!cfqq)
+ return NULL;
+
+ if (cfq_cfqq_coop(cfqq))
+ return NULL;
+
+ if (!probe)
+ cfq_mark_cfqq_coop(cfqq);
+ return cfqq;
}
+
#define CIC_SEEKY(cic) ((cic)->seek_mean > (8 * 1024))
static void cfq_arm_slice_timer(struct cfq_data *cfqd)
@@ -920,13 +1078,6 @@
if (!cic || !atomic_read(&cic->ioc->nr_tasks))
return;
- /*
- * See if this prio level has a good candidate
- */
- if (cfq_close_cooperator(cfqd, cfqq) &&
- (sample_valid(cic->ttime_samples) && cic->ttime_mean > 2))
- return;
-
cfq_mark_cfqq_wait_request(cfqq);
/*
@@ -939,7 +1090,7 @@
sl = min(sl, msecs_to_jiffies(CFQ_MIN_TT));
mod_timer(&cfqd->idle_slice_timer, jiffies + sl);
- cfq_log(cfqd, "arm_idle: %lu", sl);
+ cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu", sl);
}
/*
@@ -1003,7 +1154,7 @@
*/
static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd)
{
- struct cfq_queue *cfqq;
+ struct cfq_queue *cfqq, *new_cfqq = NULL;
cfqq = cfqd->active_queue;
if (!cfqq)
@@ -1037,6 +1188,16 @@
goto keep_queue;
/*
+ * If another queue has a request waiting within our mean seek
+ * distance, let it run. The expire code will check for close
+ * cooperators and put the close queue at the front of the service
+ * tree.
+ */
+ new_cfqq = cfq_close_cooperator(cfqd, cfqq, 0);
+ if (new_cfqq)
+ goto expire;
+
+ /*
* No requests pending. If the active queue still has requests in
* flight or is idling for a new request, allow either of these
* conditions to happen (or time out) before selecting a new queue.
@@ -1050,7 +1211,7 @@
expire:
cfq_slice_expired(cfqd, 0);
new_queue:
- cfqq = cfq_set_active_queue(cfqd);
+ cfqq = cfq_set_active_queue(cfqd, new_cfqq);
keep_queue:
return cfqq;
}
@@ -1333,14 +1494,14 @@
if (ioc->ioc_data == cic)
rcu_assign_pointer(ioc->ioc_data, NULL);
- if (cic->cfqq[ASYNC]) {
- cfq_exit_cfqq(cfqd, cic->cfqq[ASYNC]);
- cic->cfqq[ASYNC] = NULL;
+ if (cic->cfqq[BLK_RW_ASYNC]) {
+ cfq_exit_cfqq(cfqd, cic->cfqq[BLK_RW_ASYNC]);
+ cic->cfqq[BLK_RW_ASYNC] = NULL;
}
- if (cic->cfqq[SYNC]) {
- cfq_exit_cfqq(cfqd, cic->cfqq[SYNC]);
- cic->cfqq[SYNC] = NULL;
+ if (cic->cfqq[BLK_RW_SYNC]) {
+ cfq_exit_cfqq(cfqd, cic->cfqq[BLK_RW_SYNC]);
+ cic->cfqq[BLK_RW_SYNC] = NULL;
}
}
@@ -1449,17 +1610,18 @@
spin_lock_irqsave(cfqd->queue->queue_lock, flags);
- cfqq = cic->cfqq[ASYNC];
+ cfqq = cic->cfqq[BLK_RW_ASYNC];
if (cfqq) {
struct cfq_queue *new_cfqq;
- new_cfqq = cfq_get_queue(cfqd, ASYNC, cic->ioc, GFP_ATOMIC);
+ new_cfqq = cfq_get_queue(cfqd, BLK_RW_ASYNC, cic->ioc,
+ GFP_ATOMIC);
if (new_cfqq) {
- cic->cfqq[ASYNC] = new_cfqq;
+ cic->cfqq[BLK_RW_ASYNC] = new_cfqq;
cfq_put_queue(cfqq);
}
}
- cfqq = cic->cfqq[SYNC];
+ cfqq = cic->cfqq[BLK_RW_SYNC];
if (cfqq)
cfq_mark_cfqq_prio_changed(cfqq);
@@ -1510,6 +1672,7 @@
}
RB_CLEAR_NODE(&cfqq->rb_node);
+ RB_CLEAR_NODE(&cfqq->p_node);
INIT_LIST_HEAD(&cfqq->fifo);
atomic_set(&cfqq->ref, 0);
@@ -1905,10 +2068,20 @@
* Remember that we saw a request from this process, but
* don't start queuing just yet. Otherwise we risk seeing lots
* of tiny requests, because we disrupt the normal plugging
- * and merging.
+ * and merging. If the request is already larger than a single
+ * page, let it rip immediately. For that case we assume that
+ * merging is already done. Ditto for a busy system that
+ * has other work pending, don't risk delaying until the
+ * idle timer unplug to continue working.
*/
- if (cfq_cfqq_wait_request(cfqq))
+ if (cfq_cfqq_wait_request(cfqq)) {
+ if (blk_rq_bytes(rq) > PAGE_CACHE_SIZE ||
+ cfqd->busy_queues > 1) {
+ del_timer(&cfqd->idle_slice_timer);
+ blk_start_queueing(cfqd->queue);
+ }
cfq_mark_cfqq_must_dispatch(cfqq);
+ }
} else if (cfq_should_preempt(cfqd, cfqq, rq)) {
/*
* not the active queue - expire current slice if it is
@@ -1992,16 +2165,24 @@
* or if we want to idle in case it has no pending requests.
*/
if (cfqd->active_queue == cfqq) {
+ const bool cfqq_empty = RB_EMPTY_ROOT(&cfqq->sort_list);
+
if (cfq_cfqq_slice_new(cfqq)) {
cfq_set_prio_slice(cfqd, cfqq);
cfq_clear_cfqq_slice_new(cfqq);
}
+ /*
+ * If there are no requests waiting in this queue, and
+ * there are other queues ready to issue requests, AND
+ * those other queues are issuing requests within our
+ * mean seek distance, give them a chance to run instead
+ * of idling.
+ */
if (cfq_slice_used(cfqq) || cfq_class_idle(cfqq))
cfq_slice_expired(cfqd, 1);
- else if (sync && !rq_noidle(rq) &&
- RB_EMPTY_ROOT(&cfqq->sort_list)) {
+ else if (cfqq_empty && !cfq_close_cooperator(cfqd, cfqq, 1) &&
+ sync && !rq_noidle(rq))
cfq_arm_slice_timer(cfqd);
- }
}
if (!cfqd->rq_in_driver)
@@ -2062,7 +2243,7 @@
if (!cic)
return ELV_MQUEUE_MAY;
- cfqq = cic_to_cfqq(cic, rw & REQ_RW_SYNC);
+ cfqq = cic_to_cfqq(cic, rw_is_sync(rw));
if (cfqq) {
cfq_init_prio_data(cfqq, cic->ioc);
cfq_prio_boost(cfqq);
@@ -2152,11 +2333,10 @@
struct cfq_data *cfqd =
container_of(work, struct cfq_data, unplug_work);
struct request_queue *q = cfqd->queue;
- unsigned long flags;
- spin_lock_irqsave(q->queue_lock, flags);
+ spin_lock_irq(q->queue_lock);
blk_start_queueing(q);
- spin_unlock_irqrestore(q->queue_lock, flags);
+ spin_unlock_irq(q->queue_lock);
}
/*
diff --git a/block/elevator.c b/block/elevator.c
index fb81bcc..7073a90 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -590,7 +590,7 @@
/*
* Call with queue lock held, interrupts disabled
*/
-void elv_quisce_start(struct request_queue *q)
+void elv_quiesce_start(struct request_queue *q)
{
queue_flag_set(QUEUE_FLAG_ELVSWITCH, q);
@@ -607,7 +607,7 @@
}
}
-void elv_quisce_end(struct request_queue *q)
+void elv_quiesce_end(struct request_queue *q)
{
queue_flag_clear(QUEUE_FLAG_ELVSWITCH, q);
}
@@ -1126,7 +1126,7 @@
* Turn on BYPASS and drain all requests w/ elevator private data
*/
spin_lock_irq(q->queue_lock);
- elv_quisce_start(q);
+ elv_quiesce_start(q);
/*
* Remember old elevator.
@@ -1150,7 +1150,7 @@
*/
elevator_exit(old_elevator);
spin_lock_irq(q->queue_lock);
- elv_quisce_end(q);
+ elv_quiesce_end(q);
spin_unlock_irq(q->queue_lock);
blk_add_trace_msg(q, "elv switch: %s", e->elevator_type->elevator_name);
diff --git a/block/ioctl.c b/block/ioctl.c
index 0f22e62..ad474d4 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -146,8 +146,6 @@
struct bio *bio;
bio = bio_alloc(GFP_KERNEL, 0);
- if (!bio)
- return -ENOMEM;
bio->bi_end_io = blk_ioc_discard_endio;
bio->bi_bdev = bdev;
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 626ee27..84b7f87 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -217,7 +217,7 @@
static int blk_complete_sghdr_rq(struct request *rq, struct sg_io_hdr *hdr,
struct bio *bio)
{
- int ret = 0;
+ int r, ret = 0;
/*
* fill in all the output members
@@ -242,7 +242,9 @@
ret = -EFAULT;
}
- blk_rq_unmap_user(bio);
+ r = blk_rq_unmap_user(bio);
+ if (!ret)
+ ret = r;
blk_put_request(rq);
return ret;
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bdd4f5f..5f7e64b 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -275,8 +275,10 @@
if (rw == READ) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
- } else
+ } else {
+ flush_dcache_page(page);
copy_to_brd(brd, mem + off, sector, len);
+ }
kunmap_atomic(mem, KM_USER0);
out:
@@ -436,6 +438,7 @@
if (!brd->brd_queue)
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
+ blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
blk_queue_max_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3750d80..473a8f7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -446,6 +446,9 @@
uint32_t tiling_mode;
uint32_t stride;
+ /** Record of address bit 17 of each page at last unbind. */
+ long *bit_17;
+
/** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
uint32_t agp_type;
@@ -635,9 +638,13 @@
void i915_gem_detach_phys_object(struct drm_device *dev,
struct drm_gem_object *obj);
void i915_gem_free_all_phys_object(struct drm_device *dev);
+int i915_gem_object_get_pages(struct drm_gem_object *obj);
+void i915_gem_object_put_pages(struct drm_gem_object *obj);
/* i915_gem_tiling.c */
void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
+void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
+void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
/* i915_gem_debug.c */
void i915_gem_dump_object(struct drm_gem_object *obj, int len,
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 1449b45..4642115 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -43,8 +43,6 @@
uint64_t offset,
uint64_t size);
static void i915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *obj);
-static int i915_gem_object_get_pages(struct drm_gem_object *obj);
-static void i915_gem_object_put_pages(struct drm_gem_object *obj);
static int i915_gem_object_wait_rendering(struct drm_gem_object *obj);
static int i915_gem_object_bind_to_gtt(struct drm_gem_object *obj,
unsigned alignment);
@@ -143,15 +141,27 @@
int length)
{
char __iomem *vaddr;
- int ret;
+ int unwritten;
vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT], KM_USER0);
if (vaddr == NULL)
return -ENOMEM;
- ret = __copy_to_user_inatomic(data, vaddr + page_offset, length);
+ unwritten = __copy_to_user_inatomic(data, vaddr + page_offset, length);
kunmap_atomic(vaddr, KM_USER0);
- return ret;
+ if (unwritten)
+ return -EFAULT;
+
+ return 0;
+}
+
+static int i915_gem_object_needs_bit17_swizzle(struct drm_gem_object *obj)
+{
+ drm_i915_private_t *dev_priv = obj->dev->dev_private;
+ struct drm_i915_gem_object *obj_priv = obj->driver_private;
+
+ return dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
+ obj_priv->tiling_mode != I915_TILING_NONE;
}
static inline int
@@ -181,6 +191,64 @@
return 0;
}
+static inline int
+slow_shmem_bit17_copy(struct page *gpu_page,
+ int gpu_offset,
+ struct page *cpu_page,
+ int cpu_offset,
+ int length,
+ int is_read)
+{
+ char *gpu_vaddr, *cpu_vaddr;
+
+ /* Use the unswizzled path if this page isn't affected. */
+ if ((page_to_phys(gpu_page) & (1 << 17)) == 0) {
+ if (is_read)
+ return slow_shmem_copy(cpu_page, cpu_offset,
+ gpu_page, gpu_offset, length);
+ else
+ return slow_shmem_copy(gpu_page, gpu_offset,
+ cpu_page, cpu_offset, length);
+ }
+
+ gpu_vaddr = kmap_atomic(gpu_page, KM_USER0);
+ if (gpu_vaddr == NULL)
+ return -ENOMEM;
+
+ cpu_vaddr = kmap_atomic(cpu_page, KM_USER1);
+ if (cpu_vaddr == NULL) {
+ kunmap_atomic(gpu_vaddr, KM_USER0);
+ return -ENOMEM;
+ }
+
+ /* Copy the data, XORing A6 with A17 (1). The user already knows he's
+ * XORing with the other bits (A9 for Y, A9 and A10 for X)
+ */
+ while (length > 0) {
+ int cacheline_end = ALIGN(gpu_offset + 1, 64);
+ int this_length = min(cacheline_end - gpu_offset, length);
+ int swizzled_gpu_offset = gpu_offset ^ 64;
+
+ if (is_read) {
+ memcpy(cpu_vaddr + cpu_offset,
+ gpu_vaddr + swizzled_gpu_offset,
+ this_length);
+ } else {
+ memcpy(gpu_vaddr + swizzled_gpu_offset,
+ cpu_vaddr + cpu_offset,
+ this_length);
+ }
+ cpu_offset += this_length;
+ gpu_offset += this_length;
+ length -= this_length;
+ }
+
+ kunmap_atomic(cpu_vaddr, KM_USER1);
+ kunmap_atomic(gpu_vaddr, KM_USER0);
+
+ return 0;
+}
+
/**
* This is the fast shmem pread path, which attempts to copy_from_user directly
* from the backing pages of the object to the user's address space. On a
@@ -269,6 +337,7 @@
int page_length;
int ret;
uint64_t data_ptr = args->data_ptr;
+ int do_bit17_swizzling;
remain = args->size;
@@ -286,13 +355,15 @@
down_read(&mm->mmap_sem);
pinned_pages = get_user_pages(current, mm, (uintptr_t)args->data_ptr,
- num_pages, 0, 0, user_pages, NULL);
+ num_pages, 1, 0, user_pages, NULL);
up_read(&mm->mmap_sem);
if (pinned_pages < num_pages) {
ret = -EFAULT;
goto fail_put_user_pages;
}
+ do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj);
+
mutex_lock(&dev->struct_mutex);
ret = i915_gem_object_get_pages(obj);
@@ -327,11 +398,20 @@
if ((data_page_offset + page_length) > PAGE_SIZE)
page_length = PAGE_SIZE - data_page_offset;
- ret = slow_shmem_copy(user_pages[data_page_index],
- data_page_offset,
- obj_priv->pages[shmem_page_index],
- shmem_page_offset,
- page_length);
+ if (do_bit17_swizzling) {
+ ret = slow_shmem_bit17_copy(obj_priv->pages[shmem_page_index],
+ shmem_page_offset,
+ user_pages[data_page_index],
+ data_page_offset,
+ page_length,
+ 1);
+ } else {
+ ret = slow_shmem_copy(user_pages[data_page_index],
+ data_page_offset,
+ obj_priv->pages[shmem_page_index],
+ shmem_page_offset,
+ page_length);
+ }
if (ret)
goto fail_put_pages;
@@ -383,9 +463,14 @@
return -EINVAL;
}
- ret = i915_gem_shmem_pread_fast(dev, obj, args, file_priv);
- if (ret != 0)
+ if (i915_gem_object_needs_bit17_swizzle(obj)) {
ret = i915_gem_shmem_pread_slow(dev, obj, args, file_priv);
+ } else {
+ ret = i915_gem_shmem_pread_fast(dev, obj, args, file_priv);
+ if (ret != 0)
+ ret = i915_gem_shmem_pread_slow(dev, obj, args,
+ file_priv);
+ }
drm_gem_object_unreference(obj);
@@ -727,6 +812,7 @@
int page_length;
int ret;
uint64_t data_ptr = args->data_ptr;
+ int do_bit17_swizzling;
remain = args->size;
@@ -751,6 +837,8 @@
goto fail_put_user_pages;
}
+ do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj);
+
mutex_lock(&dev->struct_mutex);
ret = i915_gem_object_get_pages(obj);
@@ -785,11 +873,20 @@
if ((data_page_offset + page_length) > PAGE_SIZE)
page_length = PAGE_SIZE - data_page_offset;
- ret = slow_shmem_copy(obj_priv->pages[shmem_page_index],
- shmem_page_offset,
- user_pages[data_page_index],
- data_page_offset,
- page_length);
+ if (do_bit17_swizzling) {
+ ret = slow_shmem_bit17_copy(obj_priv->pages[shmem_page_index],
+ shmem_page_offset,
+ user_pages[data_page_index],
+ data_page_offset,
+ page_length,
+ 0);
+ } else {
+ ret = slow_shmem_copy(obj_priv->pages[shmem_page_index],
+ shmem_page_offset,
+ user_pages[data_page_index],
+ data_page_offset,
+ page_length);
+ }
if (ret)
goto fail_put_pages;
@@ -854,6 +951,8 @@
ret = i915_gem_gtt_pwrite_slow(dev, obj, args,
file_priv);
}
+ } else if (i915_gem_object_needs_bit17_swizzle(obj)) {
+ ret = i915_gem_shmem_pwrite_slow(dev, obj, args, file_priv);
} else {
ret = i915_gem_shmem_pwrite_fast(dev, obj, args, file_priv);
if (ret == -EFAULT) {
@@ -1285,7 +1384,7 @@
return 0;
}
-static void
+void
i915_gem_object_put_pages(struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = obj->driver_private;
@@ -1297,6 +1396,9 @@
if (--obj_priv->pages_refcount != 0)
return;
+ if (obj_priv->tiling_mode != I915_TILING_NONE)
+ i915_gem_object_save_bit_17_swizzle(obj);
+
for (i = 0; i < page_count; i++)
if (obj_priv->pages[i] != NULL) {
if (obj_priv->dirty)
@@ -1494,8 +1596,19 @@
if (obj->write_domain != 0)
i915_gem_object_move_to_flushing(obj);
- else
+ else {
+ /* Take a reference on the object so it won't be
+ * freed while the spinlock is held. The list
+ * protection for this spinlock is safe when breaking
+ * the lock like this since the next thing we do
+ * is just get the head of the list again.
+ */
+ drm_gem_object_reference(obj);
i915_gem_object_move_to_inactive(obj);
+ spin_unlock(&dev_priv->mm.active_list_lock);
+ drm_gem_object_unreference(obj);
+ spin_lock(&dev_priv->mm.active_list_lock);
+ }
}
out:
spin_unlock(&dev_priv->mm.active_list_lock);
@@ -1884,7 +1997,7 @@
return ret;
}
-static int
+int
i915_gem_object_get_pages(struct drm_gem_object *obj)
{
struct drm_i915_gem_object *obj_priv = obj->driver_private;
@@ -1922,6 +2035,10 @@
}
obj_priv->pages[i] = page;
}
+
+ if (obj_priv->tiling_mode != I915_TILING_NONE)
+ i915_gem_object_do_bit_17_swizzle(obj);
+
return 0;
}
@@ -3002,13 +3119,13 @@
drm_free(*relocs, reloc_count * sizeof(**relocs),
DRM_MEM_DRIVER);
*relocs = NULL;
- return ret;
+ return -EFAULT;
}
reloc_index += exec_list[i].relocation_count;
}
- return ret;
+ return 0;
}
static int
@@ -3017,23 +3134,28 @@
struct drm_i915_gem_relocation_entry *relocs)
{
uint32_t reloc_count = 0, i;
- int ret;
+ int ret = 0;
for (i = 0; i < buffer_count; i++) {
struct drm_i915_gem_relocation_entry __user *user_relocs;
+ int unwritten;
user_relocs = (void __user *)(uintptr_t)exec_list[i].relocs_ptr;
- if (ret == 0) {
- ret = copy_to_user(user_relocs,
- &relocs[reloc_count],
- exec_list[i].relocation_count *
- sizeof(*relocs));
+ unwritten = copy_to_user(user_relocs,
+ &relocs[reloc_count],
+ exec_list[i].relocation_count *
+ sizeof(*relocs));
+
+ if (unwritten) {
+ ret = -EFAULT;
+ goto err;
}
reloc_count += exec_list[i].relocation_count;
}
+err:
drm_free(relocs, reloc_count * sizeof(*relocs), DRM_MEM_DRIVER);
return ret;
@@ -3243,7 +3365,7 @@
exec_offset = exec_list[args->buffer_count - 1].offset;
#if WATCH_EXEC
- i915_gem_dump_object(object_list[args->buffer_count - 1],
+ i915_gem_dump_object(batch_obj,
args->batch_len,
__func__,
~0);
@@ -3308,10 +3430,12 @@
(uintptr_t) args->buffers_ptr,
exec_list,
sizeof(*exec_list) * args->buffer_count);
- if (ret)
+ if (ret) {
+ ret = -EFAULT;
DRM_ERROR("failed to copy %d exec entries "
"back to user (%d)\n",
args->buffer_count, ret);
+ }
}
/* Copy the updated relocations out regardless of current error
@@ -3593,6 +3717,7 @@
i915_gem_free_mmap_offset(obj);
drm_free(obj_priv->page_cpu_valid, 1, DRM_MEM_DRIVER);
+ kfree(obj_priv->bit_17);
drm_free(obj->driver_private, 1, DRM_MEM_DRIVER);
}
diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
index a1ac0c5..986f108 100644
--- a/drivers/gpu/drm/i915/i915_gem_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -234,6 +234,96 @@
return 0;
}
+static void i915_dump_pages(struct seq_file *m, struct page **pages, int page_count)
+{
+ int page, i;
+ uint32_t *mem;
+
+ for (page = 0; page < page_count; page++) {
+ mem = kmap(pages[page]);
+ for (i = 0; i < PAGE_SIZE; i += 4)
+ seq_printf(m, "%08x : %08x\n", i, mem[i / 4]);
+ kunmap(pages[page]);
+ }
+}
+
+static int i915_batchbuffer_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj_priv;
+ int ret;
+
+ spin_lock(&dev_priv->mm.active_list_lock);
+
+ list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) {
+ obj = obj_priv->obj;
+ if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) {
+ ret = i915_gem_object_get_pages(obj);
+ if (ret) {
+ DRM_ERROR("Failed to get pages: %d\n", ret);
+ spin_unlock(&dev_priv->mm.active_list_lock);
+ return ret;
+ }
+
+ seq_printf(m, "--- gtt_offset = 0x%08x\n", obj_priv->gtt_offset);
+ i915_dump_pages(m, obj_priv->pages, obj->size / PAGE_SIZE);
+
+ i915_gem_object_put_pages(obj);
+ }
+ }
+
+ spin_unlock(&dev_priv->mm.active_list_lock);
+
+ return 0;
+}
+
+static int i915_ringbuffer_data(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ u8 *virt;
+ uint32_t *ptr, off;
+
+ if (!dev_priv->ring.ring_obj) {
+ seq_printf(m, "No ringbuffer setup\n");
+ return 0;
+ }
+
+ virt = dev_priv->ring.virtual_start;
+
+ for (off = 0; off < dev_priv->ring.Size; off += 4) {
+ ptr = (uint32_t *)(virt + off);
+ seq_printf(m, "%08x : %08x\n", off, *ptr);
+ }
+
+ return 0;
+}
+
+static int i915_ringbuffer_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ unsigned int head, tail, mask;
+
+ head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
+ tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
+ mask = dev_priv->ring.tail_mask;
+
+ seq_printf(m, "RingHead : %08x\n", head);
+ seq_printf(m, "RingTail : %08x\n", tail);
+ seq_printf(m, "RingMask : %08x\n", mask);
+ seq_printf(m, "RingSize : %08lx\n", dev_priv->ring.Size);
+ seq_printf(m, "Acthd : %08x\n", I915_READ(IS_I965G(dev) ? ACTHD_I965 : ACTHD));
+
+ return 0;
+}
+
+
static struct drm_info_list i915_gem_debugfs_list[] = {
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
{"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
@@ -243,6 +333,9 @@
{"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
{"i915_gem_interrupt", i915_interrupt_info, 0},
{"i915_gem_hws", i915_hws_info, 0},
+ {"i915_ringbuffer_data", i915_ringbuffer_data, 0},
+ {"i915_ringbuffer_info", i915_ringbuffer_info, 0},
+ {"i915_batchbuffers", i915_batchbuffer_info, 0},
};
#define I915_GEM_DEBUGFS_ENTRIES ARRAY_SIZE(i915_gem_debugfs_list)
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 6be3f92..f27e523 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -25,6 +25,8 @@
*
*/
+#include "linux/string.h"
+#include "linux/bitops.h"
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
@@ -127,8 +129,8 @@
swizzle_y = I915_BIT_6_SWIZZLE_9_11;
} else {
/* Bit 17 swizzling by the CPU in addition. */
- swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
- swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
+ swizzle_x = I915_BIT_6_SWIZZLE_9_10_17;
+ swizzle_y = I915_BIT_6_SWIZZLE_9_17;
}
break;
}
@@ -288,6 +290,19 @@
args->swizzle_mode = dev_priv->mm.bit_6_swizzle_x;
else
args->swizzle_mode = dev_priv->mm.bit_6_swizzle_y;
+
+ /* Hide bit 17 swizzling from the user. This prevents old Mesa
+ * from aborting the application on sw fallbacks to bit 17,
+ * and we use the pread/pwrite bit17 paths to swizzle for it.
+ * If there was a user that was relying on the swizzle
+ * information for drm_intel_bo_map()ed reads/writes this would
+ * break it, but we don't have any of those.
+ */
+ if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_17)
+ args->swizzle_mode = I915_BIT_6_SWIZZLE_9;
+ if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_10_17)
+ args->swizzle_mode = I915_BIT_6_SWIZZLE_9_10;
+
/* If we can't handle the swizzling, make it untiled. */
if (args->swizzle_mode == I915_BIT_6_SWIZZLE_UNKNOWN) {
args->tiling_mode = I915_TILING_NONE;
@@ -354,8 +369,100 @@
DRM_ERROR("unknown tiling mode\n");
}
+ /* Hide bit 17 from the user -- see comment in i915_gem_set_tiling */
+ if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_17)
+ args->swizzle_mode = I915_BIT_6_SWIZZLE_9;
+ if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_10_17)
+ args->swizzle_mode = I915_BIT_6_SWIZZLE_9_10;
+
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
return 0;
}
+
+/**
+ * Swap every 64 bytes of this page around, to account for it having a new
+ * bit 17 of its physical address and therefore being interpreted differently
+ * by the GPU.
+ */
+static int
+i915_gem_swizzle_page(struct page *page)
+{
+ char *vaddr;
+ int i;
+ char temp[64];
+
+ vaddr = kmap(page);
+ if (vaddr == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i < PAGE_SIZE; i += 128) {
+ memcpy(temp, &vaddr[i], 64);
+ memcpy(&vaddr[i], &vaddr[i + 64], 64);
+ memcpy(&vaddr[i + 64], temp, 64);
+ }
+
+ kunmap(page);
+
+ return 0;
+}
+
+void
+i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj_priv = obj->driver_private;
+ int page_count = obj->size >> PAGE_SHIFT;
+ int i;
+
+ if (dev_priv->mm.bit_6_swizzle_x != I915_BIT_6_SWIZZLE_9_10_17)
+ return;
+
+ if (obj_priv->bit_17 == NULL)
+ return;
+
+ for (i = 0; i < page_count; i++) {
+ char new_bit_17 = page_to_phys(obj_priv->pages[i]) >> 17;
+ if ((new_bit_17 & 0x1) !=
+ (test_bit(i, obj_priv->bit_17) != 0)) {
+ int ret = i915_gem_swizzle_page(obj_priv->pages[i]);
+ if (ret != 0) {
+ DRM_ERROR("Failed to swizzle page\n");
+ return;
+ }
+ set_page_dirty(obj_priv->pages[i]);
+ }
+ }
+}
+
+void
+i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj)
+{
+ struct drm_device *dev = obj->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj_priv = obj->driver_private;
+ int page_count = obj->size >> PAGE_SHIFT;
+ int i;
+
+ if (dev_priv->mm.bit_6_swizzle_x != I915_BIT_6_SWIZZLE_9_10_17)
+ return;
+
+ if (obj_priv->bit_17 == NULL) {
+ obj_priv->bit_17 = kmalloc(BITS_TO_LONGS(page_count) *
+ sizeof(long), GFP_KERNEL);
+ if (obj_priv->bit_17 == NULL) {
+ DRM_ERROR("Failed to allocate memory for bit 17 "
+ "record\n");
+ return;
+ }
+ }
+
+ for (i = 0; i < page_count; i++) {
+ if (page_to_phys(obj_priv->pages[i]) & (1 << 17))
+ __set_bit(i, obj_priv->bit_17);
+ else
+ __clear_bit(i, obj_priv->bit_17);
+ }
+}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 64773ce..c2c8e95 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -367,6 +367,7 @@
.p1 = { .min = I9XX_P1_MIN, .max = I9XX_P1_MAX },
.p2 = { .dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
.p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast = I9XX_P2_SDVO_DAC_FAST },
+ .find_pll = intel_find_best_PLL,
},
{ /* INTEL_LIMIT_IGD_LVDS */
.dot = { .min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX },
@@ -380,6 +381,7 @@
/* IGD only supports single-channel mode. */
.p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
.p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_SLOW },
+ .find_pll = intel_find_best_PLL,
},
};
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index b7f0ebe..3e094be 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -864,8 +864,8 @@
static struct sysrq_key_op sysrq_intelfb_restore_op = {
.handler = intelfb_sysrq,
- .help_msg = "force fb",
- .action_msg = "force restore of fb console",
+ .help_msg = "force-fb(G)",
+ .action_msg = "Restore framebuffer console",
};
int intelfb_probe(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index b06a4a3..5503742 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -38,7 +38,7 @@
struct intel_hdmi_priv {
u32 sdvox_reg;
u32 save_SDVOX;
- int has_hdmi_sink;
+ bool has_hdmi_sink;
};
static void intel_hdmi_mode_set(struct drm_encoder *encoder,
@@ -128,6 +128,22 @@
return true;
}
+static void
+intel_hdmi_sink_detect(struct drm_connector *connector)
+{
+ struct intel_output *intel_output = to_intel_output(connector);
+ struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
+ struct edid *edid = NULL;
+
+ edid = drm_get_edid(&intel_output->base,
+ &intel_output->ddc_bus->adapter);
+ if (edid != NULL) {
+ hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
+ kfree(edid);
+ intel_output->base.display_info.raw_edid = NULL;
+ }
+}
+
static enum drm_connector_status
intel_hdmi_detect(struct drm_connector *connector)
{
@@ -158,9 +174,10 @@
return connector_status_unknown;
}
- if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0)
+ if ((I915_READ(PORT_HOTPLUG_STAT) & bit) != 0) {
+ intel_hdmi_sink_detect(connector);
return connector_status_connected;
- else
+ } else
return connector_status_disconnected;
}
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 7b31f55..9913651 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1357,6 +1357,23 @@
intel_sdvo_read_response(intel_output, &response, 2);
}
+static void
+intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
+{
+ struct intel_output *intel_output = to_intel_output(connector);
+ struct intel_sdvo_priv *sdvo_priv = intel_output->dev_priv;
+ struct edid *edid = NULL;
+
+ intel_sdvo_set_control_bus_switch(intel_output, sdvo_priv->ddc_bus);
+ edid = drm_get_edid(&intel_output->base,
+ &intel_output->ddc_bus->adapter);
+ if (edid != NULL) {
+ sdvo_priv->is_hdmi = drm_detect_hdmi_monitor(edid);
+ kfree(edid);
+ intel_output->base.display_info.raw_edid = NULL;
+ }
+}
+
static enum drm_connector_status intel_sdvo_detect(struct drm_connector *connector)
{
u8 response[2];
@@ -1371,9 +1388,10 @@
if (status != SDVO_CMD_STATUS_SUCCESS)
return connector_status_unknown;
- if ((response[0] != 0) || (response[1] != 0))
+ if ((response[0] != 0) || (response[1] != 0)) {
+ intel_sdvo_hdmi_sink_detect(connector);
return connector_status_connected;
- else
+ } else
return connector_status_disconnected;
}
diff --git a/drivers/md/dm-bio-list.h b/drivers/md/dm-bio-list.h
deleted file mode 100644
index 345098b..0000000
--- a/drivers/md/dm-bio-list.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2004 Red Hat UK Ltd.
- *
- * This file is released under the GPL.
- */
-
-#ifndef DM_BIO_LIST_H
-#define DM_BIO_LIST_H
-
-#include <linux/bio.h>
-
-#ifdef CONFIG_BLOCK
-
-struct bio_list {
- struct bio *head;
- struct bio *tail;
-};
-
-static inline int bio_list_empty(const struct bio_list *bl)
-{
- return bl->head == NULL;
-}
-
-static inline void bio_list_init(struct bio_list *bl)
-{
- bl->head = bl->tail = NULL;
-}
-
-#define bio_list_for_each(bio, bl) \
- for (bio = (bl)->head; bio; bio = bio->bi_next)
-
-static inline unsigned bio_list_size(const struct bio_list *bl)
-{
- unsigned sz = 0;
- struct bio *bio;
-
- bio_list_for_each(bio, bl)
- sz++;
-
- return sz;
-}
-
-static inline void bio_list_add(struct bio_list *bl, struct bio *bio)
-{
- bio->bi_next = NULL;
-
- if (bl->tail)
- bl->tail->bi_next = bio;
- else
- bl->head = bio;
-
- bl->tail = bio;
-}
-
-static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)
-{
- bio->bi_next = bl->head;
-
- bl->head = bio;
-
- if (!bl->tail)
- bl->tail = bio;
-}
-
-static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)
-{
- if (!bl2->head)
- return;
-
- if (bl->tail)
- bl->tail->bi_next = bl2->head;
- else
- bl->head = bl2->head;
-
- bl->tail = bl2->tail;
-}
-
-static inline void bio_list_merge_head(struct bio_list *bl,
- struct bio_list *bl2)
-{
- if (!bl2->head)
- return;
-
- if (bl->head)
- bl2->tail->bi_next = bl->head;
- else
- bl->tail = bl2->tail;
-
- bl->head = bl2->head;
-}
-
-static inline struct bio *bio_list_pop(struct bio_list *bl)
-{
- struct bio *bio = bl->head;
-
- if (bio) {
- bl->head = bl->head->bi_next;
- if (!bl->head)
- bl->tail = NULL;
-
- bio->bi_next = NULL;
- }
-
- return bio;
-}
-
-static inline struct bio *bio_list_get(struct bio_list *bl)
-{
- struct bio *bio = bl->head;
-
- bl->head = bl->tail = NULL;
-
- return bio;
-}
-
-#endif /* CONFIG_BLOCK */
-#endif
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 59ee1b0..559dbb5 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -15,8 +15,6 @@
#include <linux/device-mapper.h>
-#include "dm-bio-list.h"
-
#define DM_MSG_PREFIX "delay"
struct delay_c {
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 095f77b..6a386ab 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -8,7 +8,6 @@
#include <linux/device-mapper.h>
#include "dm-path-selector.h"
-#include "dm-bio-list.h"
#include "dm-bio-record.h"
#include "dm-uevent.h"
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 536ef0b..076fbb4 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -5,7 +5,6 @@
* This file is released under the GPL.
*/
-#include "dm-bio-list.h"
#include "dm-bio-record.h"
#include <linux/init.h>
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 59f8d9d..7b899be 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -14,7 +14,6 @@
#include <linux/vmalloc.h>
#include "dm.h"
-#include "dm-bio-list.h"
#define DM_MSG_PREFIX "region hash"
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 981a041..d73f17f 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -22,7 +22,6 @@
#include <linux/workqueue.h>
#include "dm-exception-store.h"
-#include "dm-bio-list.h"
#define DM_MSG_PREFIX "snapshots"
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8a994be..424f7b0 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -6,7 +6,6 @@
*/
#include "dm.h"
-#include "dm-bio-list.h"
#include "dm-uevent.h"
#include <linux/init.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 274b491..36df910 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -35,7 +35,6 @@
#include <linux/blkdev.h>
#include <linux/seq_file.h>
#include "md.h"
-#include "dm-bio-list.h"
#include "raid1.h"
#include "bitmap.h"
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e293d92..81a54f1 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -22,7 +22,6 @@
#include <linux/blkdev.h>
#include <linux/seq_file.h>
#include "md.h"
-#include "dm-bio-list.h"
#include "raid10.h"
#include "bitmap.h"
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 4fa3bb2..33e5ade 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -434,7 +434,8 @@
0 /*base_hi*/,
PAR_IRQ,
PARPORT_DMA_NONE /* dma */,
- NULL /*struct pci_dev* */) )
+ NULL /*struct pci_dev* */),
+ 0 /* shared irq flags */ )
printk(KERN_WARNING PFX "Probing parallel port failed.\n");
#endif /* CONFIG_PARPORT_PC */
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b1bd3fc..36fd2e7 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1394,7 +1394,7 @@
*/
cmd->sense_buffer[8] = 0; /* Information */
cmd->sense_buffer[9] = 0xa; /* Add. length */
- do_div(bghm, cmd->device->sector_size);
+ bghm /= cmd->device->sector_size;
failing_sector = scsi_get_lba(cmd);
failing_sector += bghm;
diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index 7fb9b5c..12d13d9 100644
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -44,6 +44,7 @@
struct intc_desc_int {
struct list_head list;
struct sys_device sysdev;
+ pm_message_t state;
unsigned long *reg;
#ifdef CONFIG_SMP
unsigned long *smp;
@@ -786,18 +787,44 @@
/* get intc controller associated with this sysdev */
d = container_of(dev, struct intc_desc_int, sysdev);
- /* enable wakeup irqs belonging to this intc controller */
- for_each_irq_desc(irq, desc) {
- if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
- intc_enable(irq);
+ switch (state.event) {
+ case PM_EVENT_ON:
+ if (d->state.event != PM_EVENT_FREEZE)
+ break;
+ for_each_irq_desc(irq, desc) {
+ if (desc->chip != &d->chip)
+ continue;
+ if (desc->status & IRQ_DISABLED)
+ intc_disable(irq);
+ else
+ intc_enable(irq);
+ }
+ break;
+ case PM_EVENT_FREEZE:
+ /* nothing has to be done */
+ break;
+ case PM_EVENT_SUSPEND:
+ /* enable wakeup irqs belonging to this intc controller */
+ for_each_irq_desc(irq, desc) {
+ if ((desc->status & IRQ_WAKEUP) && (desc->chip == &d->chip))
+ intc_enable(irq);
+ }
+ break;
}
+ d->state = state;
return 0;
}
+static int intc_resume(struct sys_device *dev)
+{
+ return intc_suspend(dev, PMSG_ON);
+}
+
static struct sysdev_class intc_sysdev_class = {
.name = "intc",
.suspend = intc_suspend,
+ .resume = intc_resume,
};
/* register this intc as sysdev to allow suspend/resume */
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 869d47c..0a69c09 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -546,10 +546,6 @@
tty->driver_data = acm;
acm->tty = tty;
- /* force low_latency on so that our tty_push actually forces the data through,
- otherwise it is scheduled, and with high data rates data can get lost. */
- tty->low_latency = 1;
-
if (usb_autopm_get_interface(acm->control) < 0)
goto early_bail;
else
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 2620bf6..9c4c700 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1215,20 +1215,22 @@
}
tty = tty_port_tty_get(&port->port);
- if (tty && urb->actual_length) {
- usb_serial_debug_data(debug, dev, __func__,
- urb->actual_length, urb->transfer_buffer);
+ if (tty) {
+ if (urb->actual_length) {
+ usb_serial_debug_data(debug, dev, __func__,
+ urb->actual_length, urb->transfer_buffer);
- if (!tport->tp_is_open)
- dbg("%s - port closed, dropping data", __func__);
- else
- ti_recv(&urb->dev->dev, tty,
+ if (!tport->tp_is_open)
+ dbg("%s - port closed, dropping data",
+ __func__);
+ else
+ ti_recv(&urb->dev->dev, tty,
urb->transfer_buffer,
urb->actual_length);
-
- spin_lock(&tport->tp_lock);
- tport->tp_icount.rx += urb->actual_length;
- spin_unlock(&tport->tp_lock);
+ spin_lock(&tport->tp_lock);
+ tport->tp_icount.rx += urb->actual_length;
+ spin_unlock(&tport->tp_lock);
+ }
tty_kref_put(tty);
}
diff --git a/fs/bio.c b/fs/bio.c
index e0c9e54..cd42bb8 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -348,6 +348,24 @@
return NULL;
}
+/**
+ * bio_alloc - allocate a bio for I/O
+ * @gfp_mask: the GFP_ mask given to the slab allocator
+ * @nr_iovecs: number of iovecs to pre-allocate
+ *
+ * Description:
+ * bio_alloc will allocate a bio and associated bio_vec array that can hold
+ * at least @nr_iovecs entries. Allocations will be done from the
+ * fs_bio_set. Also see @bio_alloc_bioset.
+ *
+ * If %__GFP_WAIT is set, then bio_alloc will always be able to allocate
+ * a bio. This is due to the mempool guarantees. To make this work, callers
+ * must never allocate more than 1 bio at the time from this pool. Callers
+ * that need to allocate more than 1 bio must always submit the previously
+ * allocate bio for IO before attempting to allocate a new one. Failure to
+ * do so can cause livelocks under memory pressure.
+ *
+ **/
struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
{
struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
diff --git a/fs/buffer.c b/fs/buffer.c
index 13edf7a..ff8bb1f 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -547,7 +547,7 @@
return err;
}
-void do_thaw_all(unsigned long unused)
+void do_thaw_all(struct work_struct *work)
{
struct super_block *sb;
char b[BDEVNAME_SIZE];
@@ -567,6 +567,7 @@
goto restart;
}
spin_unlock(&sb_lock);
+ kfree(work);
printk(KERN_WARNING "Emergency Thaw complete\n");
}
@@ -577,7 +578,13 @@
*/
void emergency_thaw_all(void)
{
- pdflush_operation(do_thaw_all, 0);
+ struct work_struct *work;
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
+ if (work) {
+ INIT_WORK(work, do_thaw_all);
+ schedule_work(work);
+ }
}
/**
diff --git a/fs/direct-io.c b/fs/direct-io.c
index da258e7..05763bb 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -307,8 +307,6 @@
struct bio *bio;
bio = bio_alloc(GFP_KERNEL, nr_vecs);
- if (bio == NULL)
- return -ENOMEM;
bio->bi_bdev = bdev;
bio->bi_sector = first_sector;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 6132353..2a1cb09 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2416,8 +2416,6 @@
len = ee_len;
bio = bio_alloc(GFP_NOIO, len);
- if (!bio)
- return -ENOMEM;
bio->bi_sector = ee_pblock;
bio->bi_bdev = inode->i_sb->s_bdev;
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 2b25133..06f30e9 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -938,9 +938,9 @@
}
static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf,
- unsigned *nbytesp, int write)
+ size_t *nbytesp, int write)
{
- unsigned nbytes = *nbytesp;
+ size_t nbytes = *nbytesp;
unsigned long user_addr = (unsigned long) buf;
unsigned offset = user_addr & ~PAGE_MASK;
int npages;
@@ -955,7 +955,7 @@
return 0;
}
- nbytes = min(nbytes, (unsigned) FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT);
+ nbytes = min_t(size_t, nbytes, FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT);
npages = (nbytes + offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
npages = clamp(npages, 1, FUSE_MAX_PAGES_PER_REQ);
down_read(¤t->mm->mmap_sem);
@@ -1298,6 +1298,8 @@
if (vma->vm_flags & VM_MAYSHARE)
return -ENODEV;
+ invalidate_inode_pages2(file->f_mapping);
+
return generic_file_mmap(file, vma);
}
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 3984e47..1afd9f2 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -597,7 +597,6 @@
GLOCK_BUG_ON(gl, test_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags));
- down_read(&gfs2_umount_flush_sem);
if (test_bit(GLF_DEMOTE, &gl->gl_flags) &&
gl->gl_demote_state != gl->gl_state) {
if (find_first_holder(gl))
@@ -614,15 +613,14 @@
if (ret == 0)
goto out_unlock;
if (ret == 2)
- goto out_sem;
+ goto out;
gh = find_first_waiter(gl);
gl->gl_target = gh->gh_state;
if (!(gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
do_error(gl, 0); /* Fail queued try locks */
}
do_xmote(gl, gh, gl->gl_target);
-out_sem:
- up_read(&gfs2_umount_flush_sem);
+out:
return;
out_sched:
@@ -631,7 +629,7 @@
gfs2_glock_put(gl);
out_unlock:
clear_bit(GLF_LOCK, &gl->gl_flags);
- goto out_sem;
+ goto out;
}
static void glock_work_func(struct work_struct *work)
@@ -641,6 +639,7 @@
if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags))
finish_xmote(gl, gl->gl_reply);
+ down_read(&gfs2_umount_flush_sem);
spin_lock(&gl->gl_spin);
if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
gl->gl_state != LM_ST_UNLOCKED &&
@@ -653,6 +652,7 @@
}
run_queue(gl, 0);
spin_unlock(&gl->gl_spin);
+ up_read(&gfs2_umount_flush_sem);
if (!delay ||
queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
gfs2_glock_put(gl);
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 7b277d44..5a31d42 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -137,15 +137,15 @@
if (S_ISREG(mode)) {
inode->i_op = &gfs2_file_iops;
if (gfs2_localflocks(sdp))
- inode->i_fop = gfs2_file_fops_nolock;
+ inode->i_fop = &gfs2_file_fops_nolock;
else
- inode->i_fop = gfs2_file_fops;
+ inode->i_fop = &gfs2_file_fops;
} else if (S_ISDIR(mode)) {
inode->i_op = &gfs2_dir_iops;
if (gfs2_localflocks(sdp))
- inode->i_fop = gfs2_dir_fops_nolock;
+ inode->i_fop = &gfs2_dir_fops_nolock;
else
- inode->i_fop = gfs2_dir_fops;
+ inode->i_fop = &gfs2_dir_fops;
} else if (S_ISLNK(mode)) {
inode->i_op = &gfs2_symlink_iops;
} else {
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index dca4fee..c30be2b 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -101,21 +101,23 @@
extern const struct inode_operations gfs2_file_iops;
extern const struct inode_operations gfs2_dir_iops;
extern const struct inode_operations gfs2_symlink_iops;
-extern const struct file_operations *gfs2_file_fops_nolock;
-extern const struct file_operations *gfs2_dir_fops_nolock;
+extern const struct file_operations gfs2_file_fops_nolock;
+extern const struct file_operations gfs2_dir_fops_nolock;
extern void gfs2_set_inode_flags(struct inode *inode);
#ifdef CONFIG_GFS2_FS_LOCKING_DLM
-extern const struct file_operations *gfs2_file_fops;
-extern const struct file_operations *gfs2_dir_fops;
+extern const struct file_operations gfs2_file_fops;
+extern const struct file_operations gfs2_dir_fops;
+
static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
{
return sdp->sd_args.ar_localflocks;
}
#else /* Single node only */
-#define gfs2_file_fops NULL
-#define gfs2_dir_fops NULL
+#define gfs2_file_fops gfs2_file_fops_nolock
+#define gfs2_dir_fops gfs2_dir_fops_nolock
+
static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
{
return 1;
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 70b9b85..101caf3 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -705,7 +705,7 @@
}
}
-const struct file_operations *gfs2_file_fops = &(const struct file_operations){
+const struct file_operations gfs2_file_fops = {
.llseek = gfs2_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
@@ -723,7 +723,7 @@
.setlease = gfs2_setlease,
};
-const struct file_operations *gfs2_dir_fops = &(const struct file_operations){
+const struct file_operations gfs2_dir_fops = {
.readdir = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
@@ -735,7 +735,7 @@
#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
-const struct file_operations *gfs2_file_fops_nolock = &(const struct file_operations){
+const struct file_operations gfs2_file_fops_nolock = {
.llseek = gfs2_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
@@ -751,7 +751,7 @@
.setlease = generic_setlease,
};
-const struct file_operations *gfs2_dir_fops_nolock = &(const struct file_operations){
+const struct file_operations gfs2_dir_fops_nolock = {
.readdir = gfs2_readdir,
.unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 51883b3..650a730 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -272,11 +272,6 @@
lock_page(page);
bio = bio_alloc(GFP_NOFS, 1);
- if (unlikely(!bio)) {
- __free_page(page);
- return -ENOBUFS;
- }
-
bio->bi_sector = sector * (sb->s_blocksize >> 9);
bio->bi_bdev = sb->s_bdev;
bio_add_page(bio, page, PAGE_SIZE, 0);
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index abd5429..1c70fa5 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -371,6 +371,7 @@
ip = ghs[1].gh_gl->gl_object;
ip->i_disksize = size;
+ i_size_write(inode, size);
error = gfs2_meta_inode_buffer(ip, &dibh);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 8d53f66..152e6c4 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -81,7 +81,7 @@
static LIST_HEAD(qd_lru_list);
static atomic_t qd_lru_count = ATOMIC_INIT(0);
-static spinlock_t qd_lru_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(qd_lru_lock);
int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask)
{
@@ -1364,7 +1364,7 @@
refrigerator();
t = min(quotad_timeo, statfs_timeo);
- prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_UNINTERRUPTIBLE);
+ prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_INTERRUPTIBLE);
spin_lock(&sdp->sd_trunc_lock);
empty = list_empty(&sdp->sd_trunc_list);
spin_unlock(&sdp->sd_trunc_lock);
diff --git a/fs/inode.c b/fs/inode.c
index d06d6d2..6ad14a1 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1470,42 +1470,6 @@
spin_lock(&inode_lock);
}
-/*
- * We rarely want to lock two inodes that do not have a parent/child
- * relationship (such as directory, child inode) simultaneously. The
- * vast majority of file systems should be able to get along fine
- * without this. Do not use these functions except as a last resort.
- */
-void inode_double_lock(struct inode *inode1, struct inode *inode2)
-{
- if (inode1 == NULL || inode2 == NULL || inode1 == inode2) {
- if (inode1)
- mutex_lock(&inode1->i_mutex);
- else if (inode2)
- mutex_lock(&inode2->i_mutex);
- return;
- }
-
- if (inode1 < inode2) {
- mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
- mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
- } else {
- mutex_lock_nested(&inode2->i_mutex, I_MUTEX_PARENT);
- mutex_lock_nested(&inode1->i_mutex, I_MUTEX_CHILD);
- }
-}
-EXPORT_SYMBOL(inode_double_lock);
-
-void inode_double_unlock(struct inode *inode1, struct inode *inode2)
-{
- if (inode1)
- mutex_unlock(&inode1->i_mutex);
-
- if (inode2 && inode2 != inode1)
- mutex_unlock(&inode2->i_mutex);
-}
-EXPORT_SYMBOL(inode_double_unlock);
-
static __initdata unsigned long ihash_entries;
static int __init set_ihash_entries(char *str)
{
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 24638e0..064279e 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -688,6 +688,8 @@
.bpop_translate = NULL,
};
+static struct lock_class_key nilfs_bmap_dat_lock_key;
+
/**
* nilfs_bmap_read - read a bmap from an inode
* @bmap: bmap
@@ -715,6 +717,7 @@
bmap->b_pops = &nilfs_bmap_ptr_ops_p;
bmap->b_last_allocated_key = 0; /* XXX: use macro */
bmap->b_last_allocated_ptr = NILFS_BMAP_NEW_PTR_INIT;
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
break;
case NILFS_CPFILE_INO:
case NILFS_SUFILE_INO:
@@ -772,6 +775,7 @@
{
memcpy(gcbmap, bmap, sizeof(union nilfs_bmap_union));
init_rwsem(&gcbmap->b_sem);
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
gcbmap->b_inode = &NILFS_BMAP_I(gcbmap)->vfs_inode;
}
@@ -779,5 +783,6 @@
{
memcpy(bmap, gcbmap, sizeof(union nilfs_bmap_union));
init_rwsem(&bmap->b_sem);
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
bmap->b_inode = &NILFS_BMAP_I(bmap)->vfs_inode;
}
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 7558c97..3d0c18a 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -35,11 +35,6 @@
#include "bmap_union.h"
/*
- * NILFS filesystem version
- */
-#define NILFS_VERSION "2.0.5"
-
-/*
* nilfs inode data in memory
*/
struct nilfs_inode_info {
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 6ade096..4fc081e 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -413,7 +413,6 @@
struct nilfs_segment_entry *ent, *n;
struct inode *sufile = nilfs->ns_sufile;
__u64 segnum[4];
- time_t mtime;
int err;
int i;
@@ -442,24 +441,13 @@
* Collecting segments written after the latest super root.
* These are marked dirty to avoid being reallocated in the next write.
*/
- mtime = get_seconds();
list_for_each_entry_safe(ent, n, head, list) {
- if (ent->segnum == segnum[0]) {
- list_del(&ent->list);
- nilfs_free_segment_entry(ent);
- continue;
- }
- err = nilfs_open_segment_entry(ent, sufile);
- if (unlikely(err))
- goto failed;
- if (!nilfs_segment_usage_dirty(ent->raw_su)) {
- /* make the segment garbage */
- ent->raw_su->su_nblocks = cpu_to_le32(0);
- ent->raw_su->su_lastmod = cpu_to_le32(mtime);
- nilfs_segment_usage_set_dirty(ent->raw_su);
+ if (ent->segnum != segnum[0]) {
+ err = nilfs_sufile_scrap(sufile, ent->segnum);
+ if (unlikely(err))
+ goto failed;
}
list_del(&ent->list);
- nilfs_close_segment_entry(ent, sufile);
nilfs_free_segment_entry(ent);
}
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index c774cf3..98e6867 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -93,6 +93,52 @@
create, NULL, bhp);
}
+static void nilfs_sufile_mod_counter(struct buffer_head *header_bh,
+ u64 ncleanadd, u64 ndirtyadd)
+{
+ struct nilfs_sufile_header *header;
+ void *kaddr;
+
+ kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ header = kaddr + bh_offset(header_bh);
+ le64_add_cpu(&header->sh_ncleansegs, ncleanadd);
+ le64_add_cpu(&header->sh_ndirtysegs, ndirtyadd);
+ kunmap_atomic(kaddr, KM_USER0);
+
+ nilfs_mdt_mark_buffer_dirty(header_bh);
+}
+
+int nilfs_sufile_update(struct inode *sufile, __u64 segnum, int create,
+ void (*dofunc)(struct inode *, __u64,
+ struct buffer_head *,
+ struct buffer_head *))
+{
+ struct buffer_head *header_bh, *bh;
+ int ret;
+
+ if (unlikely(segnum >= nilfs_sufile_get_nsegments(sufile))) {
+ printk(KERN_WARNING "%s: invalid segment number: %llu\n",
+ __func__, (unsigned long long)segnum);
+ return -EINVAL;
+ }
+ down_write(&NILFS_MDT(sufile)->mi_sem);
+
+ ret = nilfs_sufile_get_header_block(sufile, &header_bh);
+ if (ret < 0)
+ goto out_sem;
+
+ ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, create, &bh);
+ if (!ret) {
+ dofunc(sufile, segnum, header_bh, bh);
+ brelse(bh);
+ }
+ brelse(header_bh);
+
+ out_sem:
+ up_write(&NILFS_MDT(sufile)->mi_sem);
+ return ret;
+}
+
/**
* nilfs_sufile_alloc - allocate a segment
* @sufile: inode of segment usage file
@@ -113,7 +159,6 @@
int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
{
struct buffer_head *header_bh, *su_bh;
- struct the_nilfs *nilfs;
struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
size_t susz = NILFS_MDT(sufile)->mi_entry_size;
@@ -124,8 +169,6 @@
down_write(&NILFS_MDT(sufile)->mi_sem);
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
ret = nilfs_sufile_get_header_block(sufile, &header_bh);
if (ret < 0)
goto out_sem;
@@ -192,165 +235,84 @@
return ret;
}
-/**
- * nilfs_sufile_cancel_free -
- * @sufile: inode of segment usage file
- * @segnum: segment number
- *
- * Description:
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- */
-int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
+void nilfs_sufile_do_cancel_free(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, *su_bh;
- struct the_nilfs *nilfs;
- struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
void *kaddr;
- int ret;
-
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_sem;
-
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &su_bh);
- if (ret < 0)
- goto out_header;
kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
- su = nilfs_sufile_block_get_segment_usage(
- sufile, segnum, su_bh, kaddr);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (unlikely(!nilfs_segment_usage_clean(su))) {
printk(KERN_WARNING "%s: segment %llu must be clean\n",
__func__, (unsigned long long)segnum);
kunmap_atomic(kaddr, KM_USER0);
- goto out_su_bh;
+ return;
}
nilfs_segment_usage_set_dirty(su);
kunmap_atomic(kaddr, KM_USER0);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ncleansegs, -1);
- le64_add_cpu(&header->sh_ndirtysegs, 1);
- kunmap_atomic(kaddr, KM_USER0);
-
- nilfs_mdt_mark_buffer_dirty(header_bh);
+ nilfs_sufile_mod_counter(header_bh, -1, 1);
nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
-
- out_su_bh:
- brelse(su_bh);
- out_header:
- brelse(header_bh);
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
}
-/**
- * nilfs_sufile_freev - free segments
- * @sufile: inode of segment usage file
- * @segnum: array of segment numbers
- * @nsegs: number of segments
- *
- * Description: nilfs_sufile_freev() frees segments specified by @segnum and
- * @nsegs, which must have been returned by a previous call to
- * nilfs_sufile_alloc().
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- */
-#define NILFS_SUFILE_FREEV_PREALLOC 16
-int nilfs_sufile_freev(struct inode *sufile, __u64 *segnum, size_t nsegs)
+void nilfs_sufile_do_scrap(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, **su_bh,
- *su_bh_prealloc[NILFS_SUFILE_FREEV_PREALLOC];
- struct the_nilfs *nilfs;
- struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
void *kaddr;
- int ret, i;
+ int clean, dirty;
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
- /* prepare resources */
- if (nsegs <= NILFS_SUFILE_FREEV_PREALLOC)
- su_bh = su_bh_prealloc;
- else {
- su_bh = kmalloc(sizeof(*su_bh) * nsegs, GFP_NOFS);
- if (su_bh == NULL) {
- ret = -ENOMEM;
- goto out_sem;
- }
- }
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_su_bh;
- for (i = 0; i < nsegs; i++) {
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum[i],
- 0, &su_bh[i]);
- if (ret < 0)
- goto out_bh;
- }
-
- /* free segments */
- for (i = 0; i < nsegs; i++) {
- kaddr = kmap_atomic(su_bh[i]->b_page, KM_USER0);
- su = nilfs_sufile_block_get_segment_usage(
- sufile, segnum[i], su_bh[i], kaddr);
- WARN_ON(nilfs_segment_usage_error(su));
- nilfs_segment_usage_set_clean(su);
+ kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
+ if (su->su_flags == cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY) &&
+ su->su_nblocks == cpu_to_le32(0)) {
kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(su_bh[i]);
+ return;
}
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ncleansegs, nsegs);
- le64_add_cpu(&header->sh_ndirtysegs, -(u64)nsegs);
+ clean = nilfs_segment_usage_clean(su);
+ dirty = nilfs_segment_usage_dirty(su);
+
+ /* make the segment garbage */
+ su->su_lastmod = cpu_to_le64(0);
+ su->su_nblocks = cpu_to_le32(0);
+ su->su_flags = cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY);
kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(header_bh);
+
+ nilfs_sufile_mod_counter(header_bh, clean ? (u64)-1 : 0, dirty ? 0 : 1);
+ nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
-
- out_bh:
- for (i--; i >= 0; i--)
- brelse(su_bh[i]);
- brelse(header_bh);
-
- out_su_bh:
- if (su_bh != su_bh_prealloc)
- kfree(su_bh);
-
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
}
-/**
- * nilfs_sufile_free -
- * @sufile:
- * @segnum:
- */
-int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
+void nilfs_sufile_do_free(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- return nilfs_sufile_freev(sufile, &segnum, 1);
+ struct nilfs_segment_usage *su;
+ void *kaddr;
+ int sudirty;
+
+ kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
+ if (nilfs_segment_usage_clean(su)) {
+ printk(KERN_WARNING "%s: segment %llu is already clean\n",
+ __func__, (unsigned long long)segnum);
+ kunmap_atomic(kaddr, KM_USER0);
+ return;
+ }
+ WARN_ON(nilfs_segment_usage_error(su));
+ WARN_ON(!nilfs_segment_usage_dirty(su));
+
+ sudirty = nilfs_segment_usage_dirty(su);
+ nilfs_segment_usage_set_clean(su);
+ kunmap_atomic(kaddr, KM_USER0);
+ nilfs_mdt_mark_buffer_dirty(su_bh);
+
+ nilfs_sufile_mod_counter(header_bh, 1, sudirty ? (u64)-1 : 0);
+ nilfs_mdt_mark_dirty(sufile);
}
/**
@@ -500,72 +462,28 @@
return ret;
}
-/**
- * nilfs_sufile_set_error - mark a segment as erroneous
- * @sufile: inode of segment usage file
- * @segnum: segment number
- *
- * Description: nilfs_sufile_set_error() marks the segment specified by
- * @segnum as erroneous. The error segment will never be used again.
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- *
- * %-EINVAL - Invalid segment usage number.
- */
-int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum)
+void nilfs_sufile_do_set_error(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, *su_bh;
struct nilfs_segment_usage *su;
- struct nilfs_sufile_header *header;
void *kaddr;
- int ret;
-
- if (unlikely(segnum >= nilfs_sufile_get_nsegments(sufile))) {
- printk(KERN_WARNING "%s: invalid segment number: %llu\n",
- __func__, (unsigned long long)segnum);
- return -EINVAL;
- }
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_sem;
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &su_bh);
- if (ret < 0)
- goto out_header;
+ int suclean;
kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_error(su)) {
kunmap_atomic(kaddr, KM_USER0);
- brelse(su_bh);
- goto out_header;
+ return;
}
-
+ suclean = nilfs_segment_usage_clean(su);
nilfs_segment_usage_set_error(su);
kunmap_atomic(kaddr, KM_USER0);
- brelse(su_bh);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ndirtysegs, -1);
- kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(header_bh);
+ if (suclean)
+ nilfs_sufile_mod_counter(header_bh, -1, 0);
nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
- brelse(su_bh);
-
- out_header:
- brelse(header_bh);
-
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
}
/**
@@ -625,7 +543,7 @@
si[i + j].sui_nblocks = le32_to_cpu(su->su_nblocks);
si[i + j].sui_flags = le32_to_cpu(su->su_flags) &
~(1UL << NILFS_SEGMENT_USAGE_ACTIVE);
- if (nilfs_segment_is_active(nilfs, segnum + i + j))
+ if (nilfs_segment_is_active(nilfs, segnum + j))
si[i + j].sui_flags |=
(1UL << NILFS_SEGMENT_USAGE_ACTIVE);
}
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index d595f33..a2e2efd 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -36,9 +36,6 @@
}
int nilfs_sufile_alloc(struct inode *, __u64 *);
-int nilfs_sufile_cancel_free(struct inode *, __u64);
-int nilfs_sufile_freev(struct inode *, __u64 *, size_t);
-int nilfs_sufile_free(struct inode *, __u64);
int nilfs_sufile_get_segment_usage(struct inode *, __u64,
struct nilfs_segment_usage **,
struct buffer_head **);
@@ -46,9 +43,83 @@
struct buffer_head *);
int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *);
-int nilfs_sufile_set_error(struct inode *, __u64);
ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
size_t);
+int nilfs_sufile_update(struct inode *, __u64, int,
+ void (*dofunc)(struct inode *, __u64,
+ struct buffer_head *,
+ struct buffer_head *));
+void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_scrap(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_free(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+
+/**
+ * nilfs_sufile_cancel_free -
+ * @sufile: inode of segment usage file
+ * @segnum: segment number
+ *
+ * Description:
+ *
+ * Return Value: On success, 0 is returned. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ */
+static inline int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0,
+ nilfs_sufile_do_cancel_free);
+}
+
+/**
+ * nilfs_sufile_scrap - make a segment garbage
+ * @sufile: inode of segment usage file
+ * @segnum: segment number to be freed
+ */
+static inline int nilfs_sufile_scrap(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 1, nilfs_sufile_do_scrap);
+}
+
+/**
+ * nilfs_sufile_free - free segment
+ * @sufile: inode of segment usage file
+ * @segnum: segment number to be freed
+ */
+static inline int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0, nilfs_sufile_do_free);
+}
+
+/**
+ * nilfs_sufile_set_error - mark a segment as erroneous
+ * @sufile: inode of segment usage file
+ * @segnum: segment number
+ *
+ * Description: nilfs_sufile_set_error() marks the segment specified by
+ * @segnum as erroneous. The error segment will never be used again.
+ *
+ * Return Value: On success, 0 is returned. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ *
+ * %-EINVAL - Invalid segment usage number.
+ */
+static inline int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0,
+ nilfs_sufile_do_set_error);
+}
#endif /* _NILFS_SUFILE_H */
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index e117e1e..6989b03 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -63,7 +63,6 @@
MODULE_AUTHOR("NTT Corp.");
MODULE_DESCRIPTION("A New Implementation of the Log-structured Filesystem "
"(NILFS)");
-MODULE_VERSION(NILFS_VERSION);
MODULE_LICENSE("GPL");
static int nilfs_remount(struct super_block *sb, int *flags, char *data);
@@ -476,11 +475,12 @@
{
struct super_block *sb = dentry->d_sb;
struct nilfs_sb_info *sbi = NILFS_SB(sb);
+ struct the_nilfs *nilfs = sbi->s_nilfs;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
unsigned long long blocks;
unsigned long overhead;
unsigned long nrsvblocks;
sector_t nfreeblocks;
- struct the_nilfs *nilfs = sbi->s_nilfs;
int err;
/*
@@ -514,6 +514,9 @@
buf->f_files = atomic_read(&sbi->s_inodes_count);
buf->f_ffree = 0; /* nilfs_count_free_inodes(sb); */
buf->f_namelen = NILFS_NAME_LEN;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
+
return 0;
}
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 33400cf..7f65b3b 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -115,6 +115,7 @@
static int nilfs_load_super_root(struct the_nilfs *nilfs,
struct nilfs_sb_info *sbi, sector_t sr_block)
{
+ static struct lock_class_key dat_lock_key;
struct buffer_head *bh_sr;
struct nilfs_super_root *raw_sr;
struct nilfs_super_block **sbp = nilfs->ns_sbp;
@@ -163,6 +164,9 @@
if (unlikely(err))
goto failed_sufile;
+ lockdep_set_class(&NILFS_MDT(nilfs->ns_dat)->mi_sem, &dat_lock_key);
+ lockdep_set_class(&NILFS_MDT(nilfs->ns_gc_dat)->mi_sem, &dat_lock_key);
+
nilfs_mdt_set_shadow(nilfs->ns_dat, nilfs->ns_gc_dat);
nilfs_mdt_set_entry_size(nilfs->ns_cpfile, checkpoint_size,
sizeof(struct nilfs_cpfile_header));
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8672b95..c2a87c8 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1912,6 +1912,22 @@
return written ? written : ret;
}
+static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,
+ struct file *out,
+ struct splice_desc *sd)
+{
+ int ret;
+
+ ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, &sd->pos,
+ sd->total_len, 0, NULL);
+ if (ret < 0) {
+ mlog_errno(ret);
+ return ret;
+ }
+
+ return splice_from_pipe_feed(pipe, sd, pipe_to_file);
+}
+
static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
struct file *out,
loff_t *ppos,
@@ -1919,38 +1935,76 @@
unsigned int flags)
{
int ret;
- struct inode *inode = out->f_path.dentry->d_inode;
+ struct address_space *mapping = out->f_mapping;
+ struct inode *inode = mapping->host;
+ struct splice_desc sd = {
+ .total_len = len,
+ .flags = flags,
+ .pos = *ppos,
+ .u.file = out,
+ };
mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", out, pipe,
(unsigned int)len,
out->f_path.dentry->d_name.len,
out->f_path.dentry->d_name.name);
- mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
-
- ret = ocfs2_rw_lock(inode, 1);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, ppos, len, 0,
- NULL);
- if (ret < 0) {
- mlog_errno(ret);
- goto out_unlock;
- }
-
if (pipe->inode)
- mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
- ret = generic_file_splice_write_nolock(pipe, out, ppos, len, flags);
+ mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_PARENT);
+
+ splice_from_pipe_begin(&sd);
+ do {
+ ret = splice_from_pipe_next(pipe, &sd);
+ if (ret <= 0)
+ break;
+
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
+ ret = ocfs2_rw_lock(inode, 1);
+ if (ret < 0)
+ mlog_errno(ret);
+ else {
+ ret = ocfs2_splice_to_file(pipe, out, &sd);
+ ocfs2_rw_unlock(inode, 1);
+ }
+ mutex_unlock(&inode->i_mutex);
+ } while (ret > 0);
+ splice_from_pipe_end(pipe, &sd);
+
if (pipe->inode)
mutex_unlock(&pipe->inode->i_mutex);
-out_unlock:
- ocfs2_rw_unlock(inode, 1);
-out:
- mutex_unlock(&inode->i_mutex);
+ if (sd.num_spliced)
+ ret = sd.num_spliced;
+
+ if (ret > 0) {
+ unsigned long nr_pages;
+
+ *ppos += ret;
+ nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+
+ /*
+ * If file or inode is SYNC and we actually wrote some data,
+ * sync it.
+ */
+ if (unlikely((out->f_flags & O_SYNC) || IS_SYNC(inode))) {
+ int err;
+
+ mutex_lock(&inode->i_mutex);
+ err = ocfs2_rw_lock(inode, 1);
+ if (err < 0) {
+ mlog_errno(err);
+ } else {
+ err = generic_osync_inode(inode, mapping,
+ OSYNC_METADATA|OSYNC_DATA);
+ ocfs2_rw_unlock(inode, 1);
+ }
+ mutex_unlock(&inode->i_mutex);
+
+ if (err)
+ ret = err;
+ }
+ balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
+ }
mlog_exit(ret);
return ret;
diff --git a/fs/pipe.c b/fs/pipe.c
index 4af7aa5..13414ec 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -37,6 +37,42 @@
* -- Manfred Spraul <manfred@colorfullife.com> 2002-05-09
*/
+static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
+{
+ if (pipe->inode)
+ mutex_lock_nested(&pipe->inode->i_mutex, subclass);
+}
+
+void pipe_lock(struct pipe_inode_info *pipe)
+{
+ /*
+ * pipe_lock() nests non-pipe inode locks (for writing to a file)
+ */
+ pipe_lock_nested(pipe, I_MUTEX_PARENT);
+}
+EXPORT_SYMBOL(pipe_lock);
+
+void pipe_unlock(struct pipe_inode_info *pipe)
+{
+ if (pipe->inode)
+ mutex_unlock(&pipe->inode->i_mutex);
+}
+EXPORT_SYMBOL(pipe_unlock);
+
+void pipe_double_lock(struct pipe_inode_info *pipe1,
+ struct pipe_inode_info *pipe2)
+{
+ BUG_ON(pipe1 == pipe2);
+
+ if (pipe1 < pipe2) {
+ pipe_lock_nested(pipe1, I_MUTEX_PARENT);
+ pipe_lock_nested(pipe2, I_MUTEX_CHILD);
+ } else {
+ pipe_lock_nested(pipe2, I_MUTEX_CHILD);
+ pipe_lock_nested(pipe1, I_MUTEX_PARENT);
+ }
+}
+
/* Drop the inode semaphore and wait for a pipe event, atomically */
void pipe_wait(struct pipe_inode_info *pipe)
{
@@ -47,12 +83,10 @@
* is considered a noninteractive wait:
*/
prepare_to_wait(&pipe->wait, &wait, TASK_INTERRUPTIBLE);
- if (pipe->inode)
- mutex_unlock(&pipe->inode->i_mutex);
+ pipe_unlock(pipe);
schedule();
finish_wait(&pipe->wait, &wait);
- if (pipe->inode)
- mutex_lock(&pipe->inode->i_mutex);
+ pipe_lock(pipe);
}
static int
diff --git a/fs/splice.c b/fs/splice.c
index c18aa7e..5384a90 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -182,8 +182,7 @@
do_wakeup = 0;
page_nr = 0;
- if (pipe->inode)
- mutex_lock(&pipe->inode->i_mutex);
+ pipe_lock(pipe);
for (;;) {
if (!pipe->readers) {
@@ -245,15 +244,13 @@
pipe->waiting_writers--;
}
- if (pipe->inode) {
- mutex_unlock(&pipe->inode->i_mutex);
+ pipe_unlock(pipe);
- if (do_wakeup) {
- smp_mb();
- if (waitqueue_active(&pipe->wait))
- wake_up_interruptible(&pipe->wait);
- kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
- }
+ if (do_wakeup) {
+ smp_mb();
+ if (waitqueue_active(&pipe->wait))
+ wake_up_interruptible(&pipe->wait);
+ kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
}
while (page_nr < spd_pages)
@@ -555,8 +552,8 @@
* SPLICE_F_MOVE isn't set, or we cannot move the page, we simply create
* a new page in the output file page cache and fill/dirty that.
*/
-static int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
- struct splice_desc *sd)
+int pipe_to_file(struct pipe_inode_info *pipe, struct pipe_buffer *buf,
+ struct splice_desc *sd)
{
struct file *file = sd->u.file;
struct address_space *mapping = file->f_mapping;
@@ -600,6 +597,150 @@
out:
return ret;
}
+EXPORT_SYMBOL(pipe_to_file);
+
+static void wakeup_pipe_writers(struct pipe_inode_info *pipe)
+{
+ smp_mb();
+ if (waitqueue_active(&pipe->wait))
+ wake_up_interruptible(&pipe->wait);
+ kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
+}
+
+/**
+ * splice_from_pipe_feed - feed available data from a pipe to a file
+ * @pipe: pipe to splice from
+ * @sd: information to @actor
+ * @actor: handler that splices the data
+ *
+ * Description:
+
+ * This function loops over the pipe and calls @actor to do the
+ * actual moving of a single struct pipe_buffer to the desired
+ * destination. It returns when there's no more buffers left in
+ * the pipe or if the requested number of bytes (@sd->total_len)
+ * have been copied. It returns a positive number (one) if the
+ * pipe needs to be filled with more data, zero if the required
+ * number of bytes have been copied and -errno on error.
+ *
+ * This, together with splice_from_pipe_{begin,end,next}, may be
+ * used to implement the functionality of __splice_from_pipe() when
+ * locking is required around copying the pipe buffers to the
+ * destination.
+ */
+int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_desc *sd,
+ splice_actor *actor)
+{
+ int ret;
+
+ while (pipe->nrbufs) {
+ struct pipe_buffer *buf = pipe->bufs + pipe->curbuf;
+ const struct pipe_buf_operations *ops = buf->ops;
+
+ sd->len = buf->len;
+ if (sd->len > sd->total_len)
+ sd->len = sd->total_len;
+
+ ret = actor(pipe, buf, sd);
+ if (ret <= 0) {
+ if (ret == -ENODATA)
+ ret = 0;
+ return ret;
+ }
+ buf->offset += ret;
+ buf->len -= ret;
+
+ sd->num_spliced += ret;
+ sd->len -= ret;
+ sd->pos += ret;
+ sd->total_len -= ret;
+
+ if (!buf->len) {
+ buf->ops = NULL;
+ ops->release(pipe, buf);
+ pipe->curbuf = (pipe->curbuf + 1) & (PIPE_BUFFERS - 1);
+ pipe->nrbufs--;
+ if (pipe->inode)
+ sd->need_wakeup = true;
+ }
+
+ if (!sd->total_len)
+ return 0;
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(splice_from_pipe_feed);
+
+/**
+ * splice_from_pipe_next - wait for some data to splice from
+ * @pipe: pipe to splice from
+ * @sd: information about the splice operation
+ *
+ * Description:
+ * This function will wait for some data and return a positive
+ * value (one) if pipe buffers are available. It will return zero
+ * or -errno if no more data needs to be spliced.
+ */
+int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
+{
+ while (!pipe->nrbufs) {
+ if (!pipe->writers)
+ return 0;
+
+ if (!pipe->waiting_writers && sd->num_spliced)
+ return 0;
+
+ if (sd->flags & SPLICE_F_NONBLOCK)
+ return -EAGAIN;
+
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+ if (sd->need_wakeup) {
+ wakeup_pipe_writers(pipe);
+ sd->need_wakeup = false;
+ }
+
+ pipe_wait(pipe);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(splice_from_pipe_next);
+
+/**
+ * splice_from_pipe_begin - start splicing from pipe
+ * @pipe: pipe to splice from
+ *
+ * Description:
+ * This function should be called before a loop containing
+ * splice_from_pipe_next() and splice_from_pipe_feed() to
+ * initialize the necessary fields of @sd.
+ */
+void splice_from_pipe_begin(struct splice_desc *sd)
+{
+ sd->num_spliced = 0;
+ sd->need_wakeup = false;
+}
+EXPORT_SYMBOL(splice_from_pipe_begin);
+
+/**
+ * splice_from_pipe_end - finish splicing from pipe
+ * @pipe: pipe to splice from
+ * @sd: information about the splice operation
+ *
+ * Description:
+ * This function will wake up pipe writers if necessary. It should
+ * be called after a loop containing splice_from_pipe_next() and
+ * splice_from_pipe_feed().
+ */
+void splice_from_pipe_end(struct pipe_inode_info *pipe, struct splice_desc *sd)
+{
+ if (sd->need_wakeup)
+ wakeup_pipe_writers(pipe);
+}
+EXPORT_SYMBOL(splice_from_pipe_end);
/**
* __splice_from_pipe - splice data from a pipe to given actor
@@ -617,91 +758,17 @@
ssize_t __splice_from_pipe(struct pipe_inode_info *pipe, struct splice_desc *sd,
splice_actor *actor)
{
- int ret, do_wakeup, err;
+ int ret;
- ret = 0;
- do_wakeup = 0;
+ splice_from_pipe_begin(sd);
+ do {
+ ret = splice_from_pipe_next(pipe, sd);
+ if (ret > 0)
+ ret = splice_from_pipe_feed(pipe, sd, actor);
+ } while (ret > 0);
+ splice_from_pipe_end(pipe, sd);
- for (;;) {
- if (pipe->nrbufs) {
- struct pipe_buffer *buf = pipe->bufs + pipe->curbuf;
- const struct pipe_buf_operations *ops = buf->ops;
-
- sd->len = buf->len;
- if (sd->len > sd->total_len)
- sd->len = sd->total_len;
-
- err = actor(pipe, buf, sd);
- if (err <= 0) {
- if (!ret && err != -ENODATA)
- ret = err;
-
- break;
- }
-
- ret += err;
- buf->offset += err;
- buf->len -= err;
-
- sd->len -= err;
- sd->pos += err;
- sd->total_len -= err;
- if (sd->len)
- continue;
-
- if (!buf->len) {
- buf->ops = NULL;
- ops->release(pipe, buf);
- pipe->curbuf = (pipe->curbuf + 1) & (PIPE_BUFFERS - 1);
- pipe->nrbufs--;
- if (pipe->inode)
- do_wakeup = 1;
- }
-
- if (!sd->total_len)
- break;
- }
-
- if (pipe->nrbufs)
- continue;
- if (!pipe->writers)
- break;
- if (!pipe->waiting_writers) {
- if (ret)
- break;
- }
-
- if (sd->flags & SPLICE_F_NONBLOCK) {
- if (!ret)
- ret = -EAGAIN;
- break;
- }
-
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- break;
- }
-
- if (do_wakeup) {
- smp_mb();
- if (waitqueue_active(&pipe->wait))
- wake_up_interruptible_sync(&pipe->wait);
- kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
- do_wakeup = 0;
- }
-
- pipe_wait(pipe);
- }
-
- if (do_wakeup) {
- smp_mb();
- if (waitqueue_active(&pipe->wait))
- wake_up_interruptible(&pipe->wait);
- kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
- }
-
- return ret;
+ return sd->num_spliced ? sd->num_spliced : ret;
}
EXPORT_SYMBOL(__splice_from_pipe);
@@ -715,7 +782,7 @@
* @actor: handler that splices the data
*
* Description:
- * See __splice_from_pipe. This function locks the input and output inodes,
+ * See __splice_from_pipe. This function locks the pipe inode,
* otherwise it's identical to __splice_from_pipe().
*
*/
@@ -724,7 +791,6 @@
splice_actor *actor)
{
ssize_t ret;
- struct inode *inode = out->f_mapping->host;
struct splice_desc sd = {
.total_len = len,
.flags = flags,
@@ -732,88 +798,14 @@
.u.file = out,
};
- /*
- * The actor worker might be calling ->write_begin and
- * ->write_end. Most of the time, these expect i_mutex to
- * be held. Since this may result in an ABBA deadlock with
- * pipe->inode, we have to order lock acquiry here.
- *
- * Outer lock must be inode->i_mutex, as pipe_wait() will
- * release and reacquire pipe->inode->i_mutex, AND inode must
- * never be a pipe.
- */
- WARN_ON(S_ISFIFO(inode->i_mode));
- mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
- if (pipe->inode)
- mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
+ pipe_lock(pipe);
ret = __splice_from_pipe(pipe, &sd, actor);
- if (pipe->inode)
- mutex_unlock(&pipe->inode->i_mutex);
- mutex_unlock(&inode->i_mutex);
+ pipe_unlock(pipe);
return ret;
}
/**
- * generic_file_splice_write_nolock - generic_file_splice_write without mutexes
- * @pipe: pipe info
- * @out: file to write to
- * @ppos: position in @out
- * @len: number of bytes to splice
- * @flags: splice modifier flags
- *
- * Description:
- * Will either move or copy pages (determined by @flags options) from
- * the given pipe inode to the given file. The caller is responsible
- * for acquiring i_mutex on both inodes.
- *
- */
-ssize_t
-generic_file_splice_write_nolock(struct pipe_inode_info *pipe, struct file *out,
- loff_t *ppos, size_t len, unsigned int flags)
-{
- struct address_space *mapping = out->f_mapping;
- struct inode *inode = mapping->host;
- struct splice_desc sd = {
- .total_len = len,
- .flags = flags,
- .pos = *ppos,
- .u.file = out,
- };
- ssize_t ret;
- int err;
-
- err = file_remove_suid(out);
- if (unlikely(err))
- return err;
-
- ret = __splice_from_pipe(pipe, &sd, pipe_to_file);
- if (ret > 0) {
- unsigned long nr_pages;
-
- *ppos += ret;
- nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
- /*
- * If file or inode is SYNC and we actually wrote some data,
- * sync it.
- */
- if (unlikely((out->f_flags & O_SYNC) || IS_SYNC(inode))) {
- err = generic_osync_inode(inode, mapping,
- OSYNC_METADATA|OSYNC_DATA);
-
- if (err)
- ret = err;
- }
- balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
- }
-
- return ret;
-}
-
-EXPORT_SYMBOL(generic_file_splice_write_nolock);
-
-/**
* generic_file_splice_write - splice data from a pipe to a file
* @pipe: pipe info
* @out: file to write to
@@ -840,17 +832,27 @@
};
ssize_t ret;
- WARN_ON(S_ISFIFO(inode->i_mode));
- mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
- ret = file_remove_suid(out);
- if (likely(!ret)) {
- if (pipe->inode)
- mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
- ret = __splice_from_pipe(pipe, &sd, pipe_to_file);
- if (pipe->inode)
- mutex_unlock(&pipe->inode->i_mutex);
- }
- mutex_unlock(&inode->i_mutex);
+ pipe_lock(pipe);
+
+ splice_from_pipe_begin(&sd);
+ do {
+ ret = splice_from_pipe_next(pipe, &sd);
+ if (ret <= 0)
+ break;
+
+ mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
+ ret = file_remove_suid(out);
+ if (!ret)
+ ret = splice_from_pipe_feed(pipe, &sd, pipe_to_file);
+ mutex_unlock(&inode->i_mutex);
+ } while (ret > 0);
+ splice_from_pipe_end(pipe, &sd);
+
+ pipe_unlock(pipe);
+
+ if (sd.num_spliced)
+ ret = sd.num_spliced;
+
if (ret > 0) {
unsigned long nr_pages;
@@ -1339,8 +1341,7 @@
if (!pipe)
return -EBADF;
- if (pipe->inode)
- mutex_lock(&pipe->inode->i_mutex);
+ pipe_lock(pipe);
error = ret = 0;
while (nr_segs) {
@@ -1395,8 +1396,7 @@
iov++;
}
- if (pipe->inode)
- mutex_unlock(&pipe->inode->i_mutex);
+ pipe_unlock(pipe);
if (!ret)
ret = error;
@@ -1524,7 +1524,7 @@
return 0;
ret = 0;
- mutex_lock(&pipe->inode->i_mutex);
+ pipe_lock(pipe);
while (!pipe->nrbufs) {
if (signal_pending(current)) {
@@ -1542,7 +1542,7 @@
pipe_wait(pipe);
}
- mutex_unlock(&pipe->inode->i_mutex);
+ pipe_unlock(pipe);
return ret;
}
@@ -1562,7 +1562,7 @@
return 0;
ret = 0;
- mutex_lock(&pipe->inode->i_mutex);
+ pipe_lock(pipe);
while (pipe->nrbufs >= PIPE_BUFFERS) {
if (!pipe->readers) {
@@ -1583,7 +1583,7 @@
pipe->waiting_writers--;
}
- mutex_unlock(&pipe->inode->i_mutex);
+ pipe_unlock(pipe);
return ret;
}
@@ -1599,10 +1599,10 @@
/*
* Potential ABBA deadlock, work around it by ordering lock
- * grabbing by inode address. Otherwise two different processes
+ * grabbing by pipe info address. Otherwise two different processes
* could deadlock (one doing tee from A -> B, the other from B -> A).
*/
- inode_double_lock(ipipe->inode, opipe->inode);
+ pipe_double_lock(ipipe, opipe);
do {
if (!opipe->readers) {
@@ -1653,7 +1653,8 @@
if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
ret = -EAGAIN;
- inode_double_unlock(ipipe->inode, opipe->inode);
+ pipe_unlock(ipipe);
+ pipe_unlock(opipe);
/*
* If we put data in the output pipe, wakeup any potential readers.
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 67e3353..95962fa 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -594,6 +594,9 @@
#define I915_BIT_6_SWIZZLE_9_10_11 4
/* Not seen by userland */
#define I915_BIT_6_SWIZZLE_UNKNOWN 5
+/* Seen by userland. */
+#define I915_BIT_6_SWIZZLE_9_17 6
+#define I915_BIT_6_SWIZZLE_9_10_17 7
struct drm_i915_gem_set_tiling {
/** Handle of the buffer to have its tiling state updated */
diff --git a/include/linux/bio.h b/include/linux/bio.h
index b900d2c6..b89cf2d 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -504,6 +504,115 @@
return bio && bio->bi_io_vec != NULL;
}
+/*
+ * BIO list managment for use by remapping drivers (e.g. DM or MD).
+ *
+ * A bio_list anchors a singly-linked list of bios chained through the bi_next
+ * member of the bio. The bio_list also caches the last list member to allow
+ * fast access to the tail.
+ */
+struct bio_list {
+ struct bio *head;
+ struct bio *tail;
+};
+
+static inline int bio_list_empty(const struct bio_list *bl)
+{
+ return bl->head == NULL;
+}
+
+static inline void bio_list_init(struct bio_list *bl)
+{
+ bl->head = bl->tail = NULL;
+}
+
+#define bio_list_for_each(bio, bl) \
+ for (bio = (bl)->head; bio; bio = bio->bi_next)
+
+static inline unsigned bio_list_size(const struct bio_list *bl)
+{
+ unsigned sz = 0;
+ struct bio *bio;
+
+ bio_list_for_each(bio, bl)
+ sz++;
+
+ return sz;
+}
+
+static inline void bio_list_add(struct bio_list *bl, struct bio *bio)
+{
+ bio->bi_next = NULL;
+
+ if (bl->tail)
+ bl->tail->bi_next = bio;
+ else
+ bl->head = bio;
+
+ bl->tail = bio;
+}
+
+static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)
+{
+ bio->bi_next = bl->head;
+
+ bl->head = bio;
+
+ if (!bl->tail)
+ bl->tail = bio;
+}
+
+static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)
+{
+ if (!bl2->head)
+ return;
+
+ if (bl->tail)
+ bl->tail->bi_next = bl2->head;
+ else
+ bl->head = bl2->head;
+
+ bl->tail = bl2->tail;
+}
+
+static inline void bio_list_merge_head(struct bio_list *bl,
+ struct bio_list *bl2)
+{
+ if (!bl2->head)
+ return;
+
+ if (bl->head)
+ bl2->tail->bi_next = bl->head;
+ else
+ bl->tail = bl2->tail;
+
+ bl->head = bl2->head;
+}
+
+static inline struct bio *bio_list_pop(struct bio_list *bl)
+{
+ struct bio *bio = bl->head;
+
+ if (bio) {
+ bl->head = bl->head->bi_next;
+ if (!bl->head)
+ bl->tail = NULL;
+
+ bio->bi_next = NULL;
+ }
+
+ return bio;
+}
+
+static inline struct bio *bio_list_get(struct bio_list *bl)
+{
+ struct bio *bio = bl->head;
+
+ bl->head = bl->tail = NULL;
+
+ return bio;
+}
+
#if defined(CONFIG_BLK_DEV_INTEGRITY)
#define bip_vec_idx(bip, idx) (&(bip->bip_vec[(idx)]))
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 493dedb..29b3ce3 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <asm/atomic.h>
+#include <asm/system.h>
struct task_struct;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 562d285..e766be0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -87,6 +87,60 @@
*/
#define FMODE_NOCMTIME ((__force fmode_t)2048)
+/*
+ * The below are the various read and write types that we support. Some of
+ * them include behavioral modifiers that send information down to the
+ * block layer and IO scheduler. Terminology:
+ *
+ * The block layer uses device plugging to defer IO a little bit, in
+ * the hope that we will see more IO very shortly. This increases
+ * coalescing of adjacent IO and thus reduces the number of IOs we
+ * have to send to the device. It also allows for better queuing,
+ * if the IO isn't mergeable. If the caller is going to be waiting
+ * for the IO, then he must ensure that the device is unplugged so
+ * that the IO is dispatched to the driver.
+ *
+ * All IO is handled async in Linux. This is fine for background
+ * writes, but for reads or writes that someone waits for completion
+ * on, we want to notify the block layer and IO scheduler so that they
+ * know about it. That allows them to make better scheduling
+ * decisions. So when the below references 'sync' and 'async', it
+ * is referencing this priority hint.
+ *
+ * With that in mind, the available types are:
+ *
+ * READ A normal read operation. Device will be plugged.
+ * READ_SYNC A synchronous read. Device is not plugged, caller can
+ * immediately wait on this read without caring about
+ * unplugging.
+ * READA Used for read-ahead operations. Lower priority, and the
+ * block layer could (in theory) choose to ignore this
+ * request if it runs into resource problems.
+ * WRITE A normal async write. Device will be plugged.
+ * SWRITE Like WRITE, but a special case for ll_rw_block() that
+ * tells it to lock the buffer first. Normally a buffer
+ * must be locked before doing IO.
+ * WRITE_SYNC_PLUG Synchronous write. Identical to WRITE, but passes down
+ * the hint that someone will be waiting on this IO
+ * shortly. The device must still be unplugged explicitly,
+ * WRITE_SYNC_PLUG does not do this as we could be
+ * submitting more writes before we actually wait on any
+ * of them.
+ * WRITE_SYNC Like WRITE_SYNC_PLUG, but also unplugs the device
+ * immediately after submission. The write equivalent
+ * of READ_SYNC.
+ * WRITE_ODIRECT Special case write for O_DIRECT only.
+ * SWRITE_SYNC
+ * SWRITE_SYNC_PLUG Like WRITE_SYNC/WRITE_SYNC_PLUG, but locks the buffer.
+ * See SWRITE.
+ * WRITE_BARRIER Like WRITE, but tells the block layer that all
+ * previously submitted writes must be safely on storage
+ * before this one is started. Also guarantees that when
+ * this write is complete, it itself is also safely on
+ * storage. Prevents reordering of writes on both sides
+ * of this IO.
+ *
+ */
#define RW_MASK 1
#define RWA_MASK 2
#define READ 0
@@ -102,6 +156,11 @@
(SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
#define SWRITE_SYNC (SWRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
#define WRITE_BARRIER (WRITE | (1 << BIO_RW_BARRIER))
+
+/*
+ * These aren't really reads or writes, they pass down information about
+ * parts of device that are now unused by the file system.
+ */
#define DISCARD_NOBARRIER (1 << BIO_RW_DISCARD)
#define DISCARD_BARRIER ((1 << BIO_RW_DISCARD) | (1 << BIO_RW_BARRIER))
@@ -738,9 +797,6 @@
I_MUTEX_QUOTA
};
-extern void inode_double_lock(struct inode *inode1, struct inode *inode2);
-extern void inode_double_unlock(struct inode *inode1, struct inode *inode2);
-
/*
* NOTE: in a 32bit arch with a preemptable kernel and
* an UP compile the i_size_read/write must be atomic
@@ -2150,8 +2206,6 @@
struct pipe_inode_info *, size_t, unsigned int);
extern ssize_t generic_file_splice_write(struct pipe_inode_info *,
struct file *, loff_t *, size_t, unsigned int);
-extern ssize_t generic_file_splice_write_nolock(struct pipe_inode_info *,
- struct file *, loff_t *, size_t, unsigned int);
extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe,
struct file *out, loff_t *, size_t len, unsigned int flags);
extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index f2a78b5..43fc95d 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -43,10 +43,6 @@
*
*/
-/* Flags related to I2C device features */
-#define FSL_I2C_DEV_SEPARATE_DFSRR 0x00000001
-#define FSL_I2C_DEV_CLOCK_5200 0x00000002
-
enum fsl_usb2_operating_modes {
FSL_USB2_MPH_HOST,
FSL_USB2_DR_HOST,
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 8e41202..c8f0385 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -134,6 +134,11 @@
memory allocation, whereas PIPE_BUF makes atomicity guarantees. */
#define PIPE_SIZE PAGE_SIZE
+/* Pipe lock and unlock operations */
+void pipe_lock(struct pipe_inode_info *);
+void pipe_unlock(struct pipe_inode_info *);
+void pipe_double_lock(struct pipe_inode_info *, struct pipe_inode_info *);
+
/* Drop the inode semaphore and wait for a pipe event, atomically */
void pipe_wait(struct pipe_inode_info *pipe);
diff --git a/include/linux/splice.h b/include/linux/splice.h
index 528dcb9..5f3faa9 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -36,6 +36,8 @@
void *data; /* cookie */
} u;
loff_t pos; /* file position */
+ size_t num_spliced; /* number of bytes already spliced */
+ bool need_wakeup; /* need to wake up writer */
};
struct partial_page {
@@ -66,6 +68,16 @@
splice_actor *);
extern ssize_t __splice_from_pipe(struct pipe_inode_info *,
struct splice_desc *, splice_actor *);
+extern int splice_from_pipe_feed(struct pipe_inode_info *, struct splice_desc *,
+ splice_actor *);
+extern int splice_from_pipe_next(struct pipe_inode_info *,
+ struct splice_desc *);
+extern void splice_from_pipe_begin(struct splice_desc *);
+extern void splice_from_pipe_end(struct pipe_inode_info *,
+ struct splice_desc *);
+extern int pipe_to_file(struct pipe_inode_info *, struct pipe_buffer *,
+ struct splice_desc *);
+
extern ssize_t splice_to_pipe(struct pipe_inode_info *,
struct splice_pipe_desc *);
extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *,
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index b958425..625e9e4 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -29,7 +29,7 @@
/**
* usb_serial_port: structure for the specific ports of a device.
* @serial: pointer back to the struct usb_serial owner of this port.
- * @tty: pointer to the corresponding tty for this port.
+ * @port: pointer to the corresponding tty_port for this port.
* @lock: spinlock to grab when updating portions of this structure.
* @mutex: mutex used to synchronize serial_open() and serial_close()
* access for this port.
@@ -44,19 +44,22 @@
* @interrupt_out_endpointAddress: endpoint address for the interrupt out pipe
* for this port.
* @bulk_in_buffer: pointer to the bulk in buffer for this port.
+ * @bulk_in_size: the size of the bulk_in_buffer, in bytes.
* @read_urb: pointer to the bulk in struct urb for this port.
* @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
* port.
* @bulk_out_buffer: pointer to the bulk out buffer for this port.
* @bulk_out_size: the size of the bulk_out_buffer, in bytes.
* @write_urb: pointer to the bulk out struct urb for this port.
+ * @write_urb_busy: port`s writing status
* @bulk_out_endpointAddress: endpoint address for the bulk out pipe for this
* port.
* @write_wait: a wait_queue_head_t used by the port.
* @work: work queue entry for the line discipline waking up.
- * @open_count: number of times this port has been opened.
* @throttled: nonzero if the read urb is inactive to throttle the device
* @throttle_req: nonzero if the tty wants to throttle us
+ * @console: attached usb serial console
+ * @dev: pointer to the serial device
*
* This structure is used by the usb-serial core and drivers for the specific
* ports of a device.
diff --git a/include/sound/jack.h b/include/sound/jack.h
index 6b013c6..f236e42 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -50,6 +50,8 @@
int type;
const char *id;
char name[100];
+ void *private_data;
+ void (*private_free)(struct snd_jack *);
};
#ifdef CONFIG_SND_JACK
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 8904b19..c172968 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -268,7 +268,8 @@
int overrange;
snd_pcm_uframes_t avail_max;
snd_pcm_uframes_t hw_ptr_base; /* Position at buffer restart */
- snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time*/
+ snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */
+ unsigned long hw_ptr_jiffies; /* Time when hw_ptr is updated */
/* -- HW params -- */
snd_pcm_access_t access; /* access mode */
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 505f319..8ba052c 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -64,8 +64,6 @@
struct bio *bio;
bio = bio_alloc(__GFP_WAIT | __GFP_HIGH, 1);
- if (!bio)
- return -ENOMEM;
bio->bi_sector = page_off * (PAGE_SIZE >> 9);
bio->bi_bdev = resume_bdev;
bio->bi_end_io = end_swap_bio_read;
diff --git a/sound/core/control.c b/sound/core/control.c
index 4b20fa2..17b8d47 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -723,14 +723,11 @@
{
struct snd_ctl_elem_value *control;
int result;
-
- control = kmalloc(sizeof(*control), GFP_KERNEL);
- if (control == NULL)
- return -ENOMEM;
- if (copy_from_user(control, _control, sizeof(*control))) {
- kfree(control);
- return -EFAULT;
- }
+
+ control = memdup_user(_control, sizeof(*control));
+ if (IS_ERR(control))
+ return PTR_ERR(control);
+
snd_power_lock(card);
result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
if (result >= 0)
@@ -784,13 +781,10 @@
struct snd_card *card;
int result;
- control = kmalloc(sizeof(*control), GFP_KERNEL);
- if (control == NULL)
- return -ENOMEM;
- if (copy_from_user(control, _control, sizeof(*control))) {
- kfree(control);
- return -EFAULT;
- }
+ control = memdup_user(_control, sizeof(*control));
+ if (IS_ERR(control))
+ return PTR_ERR(control);
+
card = file->card;
snd_power_lock(card);
result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
@@ -916,13 +910,10 @@
if (op_flag > 0) {
if (size > 1024 * 128) /* sane value */
return -EINVAL;
- new_data = kmalloc(size, GFP_KERNEL);
- if (new_data == NULL)
- return -ENOMEM;
- if (copy_from_user(new_data, tlv, size)) {
- kfree(new_data);
- return -EFAULT;
- }
+
+ new_data = memdup_user(tlv, size);
+ if (IS_ERR(new_data))
+ return PTR_ERR(new_data);
change = ue->tlv_data_size != size;
if (!change)
change = memcmp(ue->tlv_data, new_data, size);
diff --git a/sound/core/jack.c b/sound/core/jack.c
index c8254c6..d54d1a0 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -35,6 +35,9 @@
{
struct snd_jack *jack = device->device_data;
+ if (jack->private_free)
+ jack->private_free(jack);
+
/* If the input device is registered with the input subsystem
* then we need to use a different deallocator. */
if (jack->registered)
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 36d7a59..08bfed5 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -232,14 +232,11 @@
if (! (runtime = substream->runtime))
return -ENOTTY;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
- if (data == NULL)
- return -ENOMEM;
/* only fifo_size is different, so just copy all */
- if (copy_from_user(data, data32, sizeof(*data32))) {
- err = -EFAULT;
- goto error;
- }
+ data = memdup_user(data32, sizeof(*data32));
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
if (refine)
err = snd_pcm_hw_refine(substream, data);
else
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index fbb2e39..63d088f 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -209,9 +209,11 @@
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t pos;
- snd_pcm_uframes_t new_hw_ptr, hw_ptr_interrupt, hw_base;
- snd_pcm_sframes_t delta;
+ snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_ptr_interrupt, hw_base;
+ snd_pcm_sframes_t hdelta, delta;
+ unsigned long jdelta;
+ old_hw_ptr = runtime->status->hw_ptr;
pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
if (pos == SNDRV_PCM_POS_XRUN) {
xrun(substream);
@@ -247,7 +249,30 @@
new_hw_ptr = hw_base + pos;
}
}
- if (delta > runtime->period_size) {
+ hdelta = new_hw_ptr - old_hw_ptr;
+ jdelta = jiffies - runtime->hw_ptr_jiffies;
+ if (((hdelta * HZ) / runtime->rate) > jdelta + HZ/100) {
+ delta = jdelta /
+ (((runtime->period_size * HZ) / runtime->rate)
+ + HZ/100);
+ hw_ptr_error(substream,
+ "hw_ptr skipping! [Q] "
+ "(pos=%ld, delta=%ld, period=%ld, "
+ "jdelta=%lu/%lu/%lu)\n",
+ (long)pos, (long)hdelta,
+ (long)runtime->period_size, jdelta,
+ ((hdelta * HZ) / runtime->rate), delta);
+ hw_ptr_interrupt = runtime->hw_ptr_interrupt +
+ runtime->period_size * delta;
+ if (hw_ptr_interrupt >= runtime->boundary)
+ hw_ptr_interrupt -= runtime->boundary;
+ /* rebase to interrupt position */
+ hw_base = new_hw_ptr = hw_ptr_interrupt;
+ /* align hw_base to buffer_size */
+ hw_base -= hw_base % runtime->buffer_size;
+ delta = 0;
+ }
+ if (delta > runtime->period_size + runtime->period_size / 2) {
hw_ptr_error(substream,
"Lost interrupts? "
"(stream=%i, delta=%ld, intr_ptr=%ld)\n",
@@ -263,6 +288,7 @@
runtime->hw_ptr_base = hw_base;
runtime->status->hw_ptr = new_hw_ptr;
+ runtime->hw_ptr_jiffies = jiffies;
runtime->hw_ptr_interrupt = hw_ptr_interrupt;
return snd_pcm_update_hw_ptr_post(substream, runtime);
@@ -275,6 +301,7 @@
snd_pcm_uframes_t pos;
snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_base;
snd_pcm_sframes_t delta;
+ unsigned long jdelta;
old_hw_ptr = runtime->status->hw_ptr;
pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
@@ -286,14 +313,15 @@
new_hw_ptr = hw_base + pos;
delta = new_hw_ptr - old_hw_ptr;
+ jdelta = jiffies - runtime->hw_ptr_jiffies;
if (delta < 0) {
delta += runtime->buffer_size;
if (delta < 0) {
hw_ptr_error(substream,
"Unexpected hw_pointer value [2] "
- "(stream=%i, pos=%ld, old_ptr=%ld)\n",
+ "(stream=%i, pos=%ld, old_ptr=%ld, jdelta=%li)\n",
substream->stream, (long)pos,
- (long)old_hw_ptr);
+ (long)old_hw_ptr, jdelta);
return 0;
}
hw_base += runtime->buffer_size;
@@ -301,12 +329,13 @@
hw_base = 0;
new_hw_ptr = hw_base + pos;
}
- if (delta > runtime->period_size && runtime->periods > 1) {
+ if (((delta * HZ) / runtime->rate) > jdelta + HZ/100) {
hw_ptr_error(substream,
"hw_ptr skipping! "
- "(pos=%ld, delta=%ld, period=%ld)\n",
+ "(pos=%ld, delta=%ld, period=%ld, jdelta=%lu/%lu)\n",
(long)pos, (long)delta,
- (long)runtime->period_size);
+ (long)runtime->period_size, jdelta,
+ ((delta * HZ) / runtime->rate));
return 0;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
@@ -315,6 +344,7 @@
runtime->hw_ptr_base = hw_base;
runtime->status->hw_ptr = new_hw_ptr;
+ runtime->hw_ptr_jiffies = jiffies;
return snd_pcm_update_hw_ptr_post(substream, runtime);
}
@@ -1441,6 +1471,7 @@
runtime->status->hw_ptr %= runtime->buffer_size;
else
runtime->status->hw_ptr = 0;
+ runtime->hw_ptr_jiffies = jiffies;
snd_pcm_stream_unlock_irqrestore(substream, flags);
return 0;
}
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index a151fb0..fc6f98e 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -327,21 +327,16 @@
struct snd_pcm_hw_params *params;
int err;
- params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(params, _params, sizeof(*params))) {
- err = -EFAULT;
- goto out;
- }
+ params = memdup_user(_params, sizeof(*params));
+ if (IS_ERR(params))
+ return PTR_ERR(params);
+
err = snd_pcm_hw_refine(substream, params);
if (copy_to_user(_params, params, sizeof(*params))) {
if (!err)
err = -EFAULT;
}
-out:
+
kfree(params);
return err;
}
@@ -465,21 +460,16 @@
struct snd_pcm_hw_params *params;
int err;
- params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(params, _params, sizeof(*params))) {
- err = -EFAULT;
- goto out;
- }
+ params = memdup_user(_params, sizeof(*params));
+ if (IS_ERR(params))
+ return PTR_ERR(params);
+
err = snd_pcm_hw_params(substream, params);
if (copy_to_user(_params, params, sizeof(*params))) {
if (!err)
err = -EFAULT;
}
-out:
+
kfree(params);
return err;
}
@@ -2593,13 +2583,11 @@
return -EFAULT;
if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
return -EFAULT;
- bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
- if (bufs == NULL)
- return -ENOMEM;
- if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
- kfree(bufs);
- return -EFAULT;
- }
+
+ bufs = memdup_user(xfern.bufs,
+ sizeof(void *) * runtime->channels);
+ if (IS_ERR(bufs))
+ return PTR_ERR(bufs);
result = snd_pcm_lib_writev(substream, bufs, xfern.frames);
kfree(bufs);
__put_user(result, &_xfern->result);
@@ -2675,13 +2663,11 @@
return -EFAULT;
if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
return -EFAULT;
- bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
- if (bufs == NULL)
- return -ENOMEM;
- if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
- kfree(bufs);
- return -EFAULT;
- }
+
+ bufs = memdup_user(xfern.bufs,
+ sizeof(void *) * runtime->channels);
+ if (IS_ERR(bufs))
+ return PTR_ERR(bufs);
result = snd_pcm_lib_readv(substream, bufs, xfern.frames);
kfree(bufs);
__put_user(result, &_xfern->result);
@@ -3312,18 +3298,12 @@
int err;
params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
- if (!oparams) {
- err = -ENOMEM;
- goto out;
- }
+ if (!params)
+ return -ENOMEM;
- if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
- err = -EFAULT;
+ oparams = memdup_user(_oparams, sizeof(*oparams));
+ if (IS_ERR(oparams)) {
+ err = PTR_ERR(oparams);
goto out;
}
snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3333,9 +3313,10 @@
if (!err)
err = -EFAULT;
}
+
+ kfree(oparams);
out:
kfree(params);
- kfree(oparams);
return err;
}
@@ -3347,17 +3328,12 @@
int err;
params = kmalloc(sizeof(*params), GFP_KERNEL);
- if (!params) {
- err = -ENOMEM;
- goto out;
- }
- oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
- if (!oparams) {
- err = -ENOMEM;
- goto out;
- }
- if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
- err = -EFAULT;
+ if (!params)
+ return -ENOMEM;
+
+ oparams = memdup_user(_oparams, sizeof(*oparams));
+ if (IS_ERR(oparams)) {
+ err = PTR_ERR(oparams);
goto out;
}
snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3367,9 +3343,10 @@
if (!err)
err = -EFAULT;
}
+
+ kfree(oparams);
out:
kfree(params);
- kfree(oparams);
return err;
}
#endif /* CONFIG_SND_SUPPORT_OLD_API */
diff --git a/sound/core/seq/seq_compat.c b/sound/core/seq/seq_compat.c
index 38693f4..c956fe4 100644
--- a/sound/core/seq/seq_compat.c
+++ b/sound/core/seq/seq_compat.c
@@ -48,12 +48,11 @@
struct snd_seq_port_info *data;
mm_segment_t fs;
- data = kmalloc(sizeof(*data), GFP_KERNEL);
- if (! data)
- return -ENOMEM;
+ data = memdup_user(data32, sizeof(*data32));
+ if (IS_ERR(data))
+ return PTR_ERR(data);
- if (copy_from_user(data, data32, sizeof(*data32)) ||
- get_user(data->flags, &data32->flags) ||
+ if (get_user(data->flags, &data32->flags) ||
get_user(data->time_queue, &data32->time_queue))
goto error;
data->kernel = NULL;
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 3f0050d..8f8b17a 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1395,13 +1395,10 @@
struct list_head *p;
int err = 0;
- ginfo = kmalloc(sizeof(*ginfo), GFP_KERNEL);
- if (! ginfo)
- return -ENOMEM;
- if (copy_from_user(ginfo, _ginfo, sizeof(*ginfo))) {
- kfree(ginfo);
- return -EFAULT;
- }
+ ginfo = memdup_user(_ginfo, sizeof(*ginfo));
+ if (IS_ERR(ginfo))
+ return PTR_ERR(ginfo);
+
tid = ginfo->tid;
memset(ginfo, 0, sizeof(*ginfo));
ginfo->tid = tid;
diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c
index 49037d0..bdc8dde 100644
--- a/sound/isa/sb/sb16_csp.c
+++ b/sound/isa/sb/sb16_csp.c
@@ -684,15 +684,16 @@
static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
{
- int err = -ENOMEM;
- unsigned char *kbuf = kmalloc(size, GFP_KERNEL);
- if (kbuf) {
- if (copy_from_user(kbuf, buf, size))
- err = -EFAULT;
- else
- err = snd_sb_csp_load(p, kbuf, size, load_flags);
- kfree(kbuf);
- }
+ int err;
+ unsigned char *kbuf;
+
+ kbuf = memdup_user(buf, size);
+ if (IS_ERR(kbuf))
+ return PTR_ERR(kbuf);
+
+ err = snd_sb_csp_load(p, kbuf, size, load_flags);
+
+ kfree(kbuf);
return err;
}
diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c
index a4345fc..2bb1cee 100644
--- a/sound/isa/wavefront/wavefront_fx.c
+++ b/sound/isa/wavefront/wavefront_fx.c
@@ -202,15 +202,11 @@
"> 512 bytes to FX\n");
return -EIO;
}
- page_data = kmalloc(r.data[2] * sizeof(short), GFP_KERNEL);
- if (!page_data)
- return -ENOMEM;
- if (copy_from_user (page_data,
- (unsigned char __user *) r.data[3],
- r.data[2] * sizeof(short))) {
- kfree(page_data);
- return -EFAULT;
- }
+ page_data = memdup_user((unsigned char __user *)
+ r.data[3],
+ r.data[2] * sizeof(short));
+ if (IS_ERR(page_data))
+ return PTR_ERR(page_data);
pd = page_data;
}
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index beb312c..5d4ff48 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1664,12 +1664,11 @@
break;
case WFCTL_WFCMD:
- wc = kmalloc(sizeof(*wc), GFP_KERNEL);
- if (! wc)
- return -ENOMEM;
- if (copy_from_user (wc, argp, sizeof (*wc)))
- err = -EFAULT;
- else if (wavefront_synth_control (acard, wc) < 0)
+ wc = memdup_user(argp, sizeof(*wc));
+ if (IS_ERR(wc))
+ return PTR_ERR(wc);
+
+ if (wavefront_synth_control (acard, wc) < 0)
err = -EIO;
else if (copy_to_user (argp, wc, sizeof (*wc)))
err = -EFAULT;
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 191e1cd..4b302d8 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -2493,24 +2493,17 @@
case SNDRV_EMU10K1_IOCTL_CODE_POKE:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- icode = kmalloc(sizeof(*icode), GFP_KERNEL);
- if (icode == NULL)
- return -ENOMEM;
- if (copy_from_user(icode, argp, sizeof(*icode))) {
- kfree(icode);
- return -EFAULT;
- }
+
+ icode = memdup_user(argp, sizeof(*icode));
+ if (IS_ERR(icode))
+ return PTR_ERR(icode);
res = snd_emu10k1_icode_poke(emu, icode);
kfree(icode);
return res;
case SNDRV_EMU10K1_IOCTL_CODE_PEEK:
- icode = kmalloc(sizeof(*icode), GFP_KERNEL);
- if (icode == NULL)
- return -ENOMEM;
- if (copy_from_user(icode, argp, sizeof(*icode))) {
- kfree(icode);
- return -EFAULT;
- }
+ icode = memdup_user(argp, sizeof(*icode));
+ if (IS_ERR(icode))
+ return PTR_ERR(icode);
res = snd_emu10k1_icode_peek(emu, icode);
if (res == 0 && copy_to_user(argp, icode, sizeof(*icode))) {
kfree(icode);
@@ -2519,24 +2512,16 @@
kfree(icode);
return res;
case SNDRV_EMU10K1_IOCTL_PCM_POKE:
- ipcm = kmalloc(sizeof(*ipcm), GFP_KERNEL);
- if (ipcm == NULL)
- return -ENOMEM;
- if (copy_from_user(ipcm, argp, sizeof(*ipcm))) {
- kfree(ipcm);
- return -EFAULT;
- }
+ ipcm = memdup_user(argp, sizeof(*ipcm));
+ if (IS_ERR(ipcm))
+ return PTR_ERR(ipcm);
res = snd_emu10k1_ipcm_poke(emu, ipcm);
kfree(ipcm);
return res;
case SNDRV_EMU10K1_IOCTL_PCM_PEEK:
- ipcm = kzalloc(sizeof(*ipcm), GFP_KERNEL);
- if (ipcm == NULL)
- return -ENOMEM;
- if (copy_from_user(ipcm, argp, sizeof(*ipcm))) {
- kfree(ipcm);
- return -EFAULT;
- }
+ ipcm = memdup_user(argp, sizeof(*ipcm));
+ if (IS_ERR(ipcm))
+ return PTR_ERR(ipcm);
res = snd_emu10k1_ipcm_peek(emu, ipcm);
if (res == 0 && copy_to_user(argp, ipcm, sizeof(*ipcm))) {
kfree(ipcm);
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index a4e5e59..fd6e6f3 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2250,7 +2250,11 @@
err = bus->ops.command(bus, res);
if (!err) {
struct hda_cache_head *c;
- u32 key = build_cmd_cache_key(nid, verb);
+ u32 key;
+ /* parm may contain the verb stuff for get/set amp */
+ verb = verb | (parm >> 8);
+ parm &= 0xff;
+ key = build_cmd_cache_key(nid, verb);
c = get_alloc_hash(&codec->cmd_cache, key);
if (c)
c->val = parm;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 7ba8db5..bc882f8 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -312,6 +312,9 @@
unsigned int period_bytes; /* size of the period in bytes */
unsigned int frags; /* number for period in the play buffer */
unsigned int fifo_size; /* FIFO size */
+ unsigned int start_flag: 1; /* stream full start flag */
+ unsigned long start_jiffies; /* start + minimum jiffies */
+ unsigned long min_jiffies; /* minimum jiffies before position is valid */
void __iomem *sd_addr; /* stream descriptor pointer */
@@ -330,7 +333,6 @@
unsigned int opened :1;
unsigned int running :1;
unsigned int irq_pending :1;
- unsigned int irq_ignore :1;
/*
* For VIA:
* A flag to ensure DMA position is 0
@@ -975,7 +977,7 @@
struct azx *chip = dev_id;
struct azx_dev *azx_dev;
u32 status;
- int i;
+ int i, ok;
spin_lock(&chip->reg_lock);
@@ -991,18 +993,14 @@
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
if (!azx_dev->substream || !azx_dev->running)
continue;
- /* ignore the first dummy IRQ (due to pos_adj) */
- if (azx_dev->irq_ignore) {
- azx_dev->irq_ignore = 0;
- continue;
- }
/* check whether this IRQ is really acceptable */
- if (azx_position_ok(chip, azx_dev)) {
+ ok = azx_position_ok(chip, azx_dev);
+ if (ok == 1) {
azx_dev->irq_pending = 0;
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(azx_dev->substream);
spin_lock(&chip->reg_lock);
- } else if (chip->bus && chip->bus->workq) {
+ } else if (ok == 0 && chip->bus && chip->bus->workq) {
/* bogus IRQ, process it later */
azx_dev->irq_pending = 1;
queue_work(chip->bus->workq,
@@ -1088,7 +1086,6 @@
bdl = (u32 *)azx_dev->bdl.area;
ofs = 0;
azx_dev->frags = 0;
- azx_dev->irq_ignore = 0;
pos_adj = bdl_pos_adj[chip->dev_index];
if (pos_adj > 0) {
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -1109,7 +1106,6 @@
&bdl, ofs, pos_adj, 1);
if (ofs < 0)
goto error;
- azx_dev->irq_ignore = 1;
}
} else
pos_adj = 0;
@@ -1155,6 +1151,9 @@
while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
--timeout)
;
+
+ /* reset first position - may not be synced with hw at this time */
+ *azx_dev->posbuf = 0;
}
/*
@@ -1409,7 +1408,6 @@
snd_pcm_set_sync(substream);
mutex_unlock(&chip->open_mutex);
- azx_stream_reset(chip, azx_dev);
return 0;
}
@@ -1474,6 +1472,7 @@
unsigned int bufsize, period_bytes, format_val;
int err;
+ azx_stream_reset(chip, azx_dev);
format_val = snd_hda_calc_stream_format(runtime->rate,
runtime->channels,
runtime->format,
@@ -1502,6 +1501,8 @@
return err;
}
+ azx_dev->min_jiffies = (runtime->period_size * HZ) /
+ (runtime->rate * 2);
azx_setup_controller(chip, azx_dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
@@ -1518,13 +1519,14 @@
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev;
struct snd_pcm_substream *s;
- int start, nsync = 0, sbits = 0;
+ int rstart = 0, start, nsync = 0, sbits = 0;
int nwait, timeout;
switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ rstart = 1;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_START:
start = 1;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
@@ -1554,6 +1556,10 @@
if (s->pcm->card != substream->pcm->card)
continue;
azx_dev = get_azx_dev(s);
+ if (rstart) {
+ azx_dev->start_flag = 1;
+ azx_dev->start_jiffies = jiffies + azx_dev->min_jiffies;
+ }
if (start)
azx_stream_start(chip, azx_dev);
else
@@ -1703,6 +1709,11 @@
{
unsigned int pos;
+ if (azx_dev->start_flag &&
+ time_before_eq(jiffies, azx_dev->start_jiffies))
+ return -1; /* bogus (too early) interrupt */
+ azx_dev->start_flag = 0;
+
pos = azx_get_position(chip, azx_dev);
if (chip->position_fix == POS_FIX_AUTO) {
if (!pos) {
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 1f2ad76..56ce19e 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -350,12 +350,20 @@
}
#ifdef CONFIG_SND_JACK
+static void conexant_free_jack_priv(struct snd_jack *jack)
+{
+ struct conexant_jack *jacks = jack->private_data;
+ jacks->nid = 0;
+ jacks->jack = NULL;
+}
+
static int conexant_add_jack(struct hda_codec *codec,
hda_nid_t nid, int type)
{
struct conexant_spec *spec;
struct conexant_jack *jack;
const char *name;
+ int err;
spec = codec->spec;
snd_array_init(&spec->jacks, sizeof(*jack), 32);
@@ -368,7 +376,12 @@
jack->nid = nid;
jack->type = type;
- return snd_jack_new(codec->bus->card, name, type, &jack->jack);
+ err = snd_jack_new(codec->bus->card, name, type, &jack->jack);
+ if (err < 0)
+ return err;
+ jack->jack->private_data = jack;
+ jack->jack->private_free = conexant_free_jack_priv;
+ return 0;
}
static void conexant_report_jack(struct hda_codec *codec, hda_nid_t nid)
@@ -455,8 +468,10 @@
if (spec->jacks.list) {
struct conexant_jack *jacks = spec->jacks.list;
int i;
- for (i = 0; i < spec->jacks.used; i++)
- snd_device_free(codec->bus->card, &jacks[i].jack);
+ for (i = 0; i < spec->jacks.used; i++, jacks++) {
+ if (jacks->jack)
+ snd_device_free(codec->bus->card, jacks->jack);
+ }
snd_array_free(&spec->jacks);
}
#endif
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f35e58a..6ed787e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8742,10 +8742,9 @@
SND_PCI_QUIRK_VENDOR(0x1558, "Clevo laptop", ALC883_LAPTOP_EAPD),
SND_PCI_QUIRK(0x15d9, 0x8780, "Supermicro PDSBA", ALC883_3ST_6ch),
SND_PCI_QUIRK(0x161f, 0x2054, "Medion laptop", ALC883_MEDION),
- SND_PCI_QUIRK(0x1734, 0x1107, "FSC AMILO Xi2550",
+ SND_PCI_QUIRK_MASK(0x1734, 0xfff0, 0x1100, "FSC AMILO Xi/Pi25xx",
ALC883_FUJITSU_PI2515),
- SND_PCI_QUIRK(0x1734, 0x1108, "Fujitsu AMILO Pi2515", ALC883_FUJITSU_PI2515),
- SND_PCI_QUIRK(0x1734, 0x113d, "Fujitsu AMILO Xa3530",
+ SND_PCI_QUIRK_MASK(0x1734, 0xfff0, 0x1130, "Fujitsu AMILO Xa35xx",
ALC888_FUJITSU_XA3530),
SND_PCI_QUIRK(0x17aa, 0x101e, "Lenovo 101e", ALC883_LENOVO_101E_2ch),
SND_PCI_QUIRK(0x17aa, 0x2085, "Lenovo NB0763", ALC883_LENOVO_NB0763),
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 61996a2..ce30b45 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3851,6 +3851,15 @@
AC_VERB_SET_GPIO_DATA, gpiostate); /* sync */
}
+#ifdef CONFIG_SND_JACK
+static void stac92xx_free_jack_priv(struct snd_jack *jack)
+{
+ struct sigmatel_jack *jacks = jack->private_data;
+ jacks->nid = 0;
+ jacks->jack = NULL;
+}
+#endif
+
static int stac92xx_add_jack(struct hda_codec *codec,
hda_nid_t nid, int type)
{
@@ -3860,6 +3869,7 @@
int def_conf = snd_hda_codec_get_pincfg(codec, nid);
int connectivity = get_defcfg_connect(def_conf);
char name[32];
+ int err;
if (connectivity && connectivity != AC_JACK_PORT_FIXED)
return 0;
@@ -3876,10 +3886,15 @@
snd_hda_get_jack_connectivity(def_conf),
snd_hda_get_jack_location(def_conf));
- return snd_jack_new(codec->bus->card, name, type, &jack->jack);
-#else
- return 0;
+ err = snd_jack_new(codec->bus->card, name, type, &jack->jack);
+ if (err < 0) {
+ jack->nid = 0;
+ return err;
+ }
+ jack->jack->private_data = jack;
+ jack->jack->private_free = stac92xx_free_jack_priv;
#endif
+ return 0;
}
static int stac_add_event(struct sigmatel_spec *spec, hda_nid_t nid,
@@ -4138,8 +4153,10 @@
if (!codec->bus->shutdown && spec->jacks.list) {
struct sigmatel_jack *jacks = spec->jacks.list;
int i;
- for (i = 0; i < spec->jacks.used; i++)
- snd_device_free(codec->bus->card, &jacks[i].jack);
+ for (i = 0; i < spec->jacks.used; i++, jacks++) {
+ if (jacks->jack)
+ snd_device_free(codec->bus->card, jacks->jack);
+ }
}
snd_array_free(&spec->jacks);
#endif
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 5764881..5dced5b 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -355,6 +355,9 @@
unsigned int fragsize1;
unsigned int position;
unsigned int pos_shift;
+ unsigned int last_pos;
+ unsigned long last_pos_jiffies;
+ unsigned int jiffy_to_bytes;
int frags;
int lvi;
int lvi_frag;
@@ -838,7 +841,10 @@
ichdev->suspended = 0;
/* fallthru */
case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
val = ICH_IOCE | ICH_STARTBM;
+ ichdev->last_pos = ichdev->position;
+ ichdev->last_pos_jiffies = jiffies;
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
ichdev->suspended = 1;
@@ -849,9 +855,6 @@
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
val = ICH_IOCE;
break;
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- val = ICH_IOCE | ICH_STARTBM;
- break;
default:
return -EINVAL;
}
@@ -1045,6 +1048,7 @@
ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
}
snd_intel8x0_setup_periods(chip, ichdev);
+ ichdev->jiffy_to_bytes = (runtime->rate * 4 * ichdev->pos_shift) / HZ;
return 0;
}
@@ -1053,7 +1057,7 @@
struct intel8x0 *chip = snd_pcm_substream_chip(substream);
struct ichdev *ichdev = get_ichdev(substream);
size_t ptr1, ptr;
- int civ, timeout = 100;
+ int civ, timeout = 10;
unsigned int position;
spin_lock(&chip->reg_lock);
@@ -1069,9 +1073,19 @@
ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
break;
} while (timeout--);
- ptr1 <<= ichdev->pos_shift;
- ptr = ichdev->fragsize1 - ptr1;
- ptr += position;
+ if (ptr1 != 0) {
+ ptr1 <<= ichdev->pos_shift;
+ ptr = ichdev->fragsize1 - ptr1;
+ ptr += position;
+ ichdev->last_pos = ptr;
+ ichdev->last_pos_jiffies = jiffies;
+ } else {
+ ptr1 = jiffies - ichdev->last_pos_jiffies;
+ if (ptr1)
+ ptr1 -= 1;
+ ptr = ichdev->last_pos + ptr1 * ichdev->jiffy_to_bytes;
+ ptr %= ichdev->size;
+ }
spin_unlock(&chip->reg_lock);
if (ptr >= ichdev->size)
return 0;
@@ -2661,12 +2675,14 @@
struct snd_pcm_substream *subs;
struct ichdev *ichdev;
unsigned long port;
- unsigned long pos, t;
- struct timeval start_time, stop_time;
+ unsigned long pos, pos1, t;
+ int civ, timeout = 1000, attempt = 1;
+ struct timespec start_time, stop_time;
if (chip->ac97_bus->clock != 48000)
return; /* specified in module option */
+ __again:
subs = chip->pcm[0]->streams[0].substream;
if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
@@ -2674,7 +2690,7 @@
}
ichdev = &chip->ichd[ICHD_PCMOUT];
ichdev->physbuf = subs->dma_buffer.addr;
- ichdev->size = chip->ichd[ICHD_PCMOUT].fragsize = INTEL8X0_TESTBUF_SIZE;
+ ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
ichdev->substream = NULL; /* don't process interrupts */
/* set rate */
@@ -2693,16 +2709,31 @@
iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
}
- do_gettimeofday(&start_time);
+ do_posix_clock_monotonic_gettime(&start_time);
spin_unlock_irq(&chip->reg_lock);
msleep(50);
spin_lock_irq(&chip->reg_lock);
/* check the position */
- pos = ichdev->fragsize1;
- pos -= igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << ichdev->pos_shift;
- pos += ichdev->position;
+ do {
+ civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
+ pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
+ if (pos1 == 0) {
+ udelay(10);
+ continue;
+ }
+ if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
+ pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
+ break;
+ } while (timeout--);
+ if (pos1 == 0) { /* oops, this value is not reliable */
+ pos = 0;
+ } else {
+ pos = ichdev->fragsize1;
+ pos -= pos1 << ichdev->pos_shift;
+ pos += ichdev->position;
+ }
chip->in_measurement = 0;
- do_gettimeofday(&stop_time);
+ do_posix_clock_monotonic_gettime(&stop_time);
/* stop */
if (chip->device_type == DEVICE_ALI) {
iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
@@ -2717,19 +2748,37 @@
iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
spin_unlock_irq(&chip->reg_lock);
- t = stop_time.tv_sec - start_time.tv_sec;
- t *= 1000000;
- t += stop_time.tv_usec - start_time.tv_usec;
- printk(KERN_INFO "%s: measured %lu usecs\n", __func__, t);
- if (t == 0) {
- snd_printk(KERN_ERR "?? calculation error..\n");
+ if (pos == 0) {
+ snd_printk(KERN_ERR "intel8x0: measure - unreliable DMA position..\n");
+ __retry:
+ if (attempt < 2) {
+ attempt++;
+ goto __again;
+ }
return;
}
- pos = (pos / 4) * 1000;
+
+ pos /= 4;
+ t = stop_time.tv_sec - start_time.tv_sec;
+ t *= 1000000;
+ t += (stop_time.tv_nsec - start_time.tv_nsec) / 1000;
+ printk(KERN_INFO "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
+ if (t == 0) {
+ snd_printk(KERN_ERR "intel8x0: ?? calculation error..\n");
+ goto __retry;
+ }
+ pos *= 1000;
pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
- if (pos < 40000 || pos >= 60000)
+ if (pos < 40000 || pos >= 60000) {
/* abnormal value. hw problem? */
printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
+ goto __retry;
+ } else if (pos > 40500 && pos < 41500)
+ /* first exception - 41000Hz reference clock */
+ chip->ac97_bus->clock = 41000;
+ else if (pos > 43600 && pos < 44600)
+ /* second exception - 44100HZ reference clock */
+ chip->ac97_bus->clock = 44100;
else if (pos < 47500 || pos > 48500)
/* not 48000Hz, tuning the clock.. */
chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index f7c4544..0625c34 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -27,8 +27,6 @@
#include <sound/soc.h>
#include <sound/soc-dapm.h>
-#include <mach/pxa-regs.h>
-#include <mach/hardware.h>
#include <mach/magician.h>
#include <asm/mach-types.h>
#include "../codecs/uda1380.h"
diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
index 2f3a21e..df494d1 100644
--- a/sound/soc/s3c24xx/Kconfig
+++ b/sound/soc/s3c24xx/Kconfig
@@ -1,10 +1,10 @@
config SND_S3C24XX_SOC
tristate "SoC Audio for the Samsung S3CXXXX chips"
- depends on ARCH_S3C2410 || ARCH_S3C64XX
+ depends on ARCH_S3C2410
help
Say Y or M if you want to add support for codecs attached to
- the S3C24XX and S3C64XX AC97, I2S or SSP interface. You will
- also need to select the audio interfaces to support below.
+ the S3C24XX AC97 or I2S interfaces. You will also need to
+ select the audio interfaces to support below.
config SND_S3C24XX_SOC_I2S
tristate
diff --git a/sound/usb/caiaq/Makefile b/sound/usb/caiaq/Makefile
index 23dadd5..3889996 100644
--- a/sound/usb/caiaq/Makefile
+++ b/sound/usb/caiaq/Makefile
@@ -1,4 +1,4 @@
-snd-usb-caiaq-y := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-control.o
-snd-usb-caiaq-$(CONFIG_SND_USB_CAIAQ_INPUT) += caiaq-input.o
+snd-usb-caiaq-y := device.o audio.o midi.o control.o
+snd-usb-caiaq-$(CONFIG_SND_USB_CAIAQ_INPUT) += input.o
obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o
diff --git a/sound/usb/caiaq/caiaq-audio.c b/sound/usb/caiaq/audio.c
similarity index 98%
rename from sound/usb/caiaq/caiaq-audio.c
rename to sound/usb/caiaq/audio.c
index 08d51e0..3f45c0f 100644
--- a/sound/usb/caiaq/caiaq-audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -16,20 +16,14 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/interrupt.h>
-#include <linux/usb.h>
#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/usb.h>
#include <sound/core.h>
-#include <sound/initval.h>
#include <sound/pcm.h>
-#include <sound/rawmidi.h>
-#include <linux/input.h>
-#include "caiaq-device.h"
-#include "caiaq-audio.h"
+#include "device.h"
+#include "audio.h"
#define N_URBS 32
#define CLOCK_DRIFT_TOLERANCE 5
diff --git a/sound/usb/caiaq/caiaq-audio.h b/sound/usb/caiaq/audio.h
similarity index 100%
rename from sound/usb/caiaq/caiaq-audio.h
rename to sound/usb/caiaq/audio.h
diff --git a/sound/usb/caiaq/caiaq-control.c b/sound/usb/caiaq/control.c
similarity index 98%
rename from sound/usb/caiaq/caiaq-control.c
rename to sound/usb/caiaq/control.c
index e92c2bb..537102b 100644
--- a/sound/usb/caiaq/caiaq-control.c
+++ b/sound/usb/caiaq/control.c
@@ -18,17 +18,13 @@
*/
#include <linux/init.h>
-#include <linux/interrupt.h>
#include <linux/usb.h>
-#include <sound/core.h>
-#include <sound/initval.h>
-#include <sound/pcm.h>
-#include <sound/rawmidi.h>
#include <sound/control.h>
-#include <linux/input.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
-#include "caiaq-device.h"
-#include "caiaq-control.h"
+#include "device.h"
+#include "control.h"
#define CNT_INTVAL 0x10000
diff --git a/sound/usb/caiaq/caiaq-control.h b/sound/usb/caiaq/control.h
similarity index 100%
rename from sound/usb/caiaq/caiaq-control.h
rename to sound/usb/caiaq/control.h
diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/device.c
similarity index 97%
rename from sound/usb/caiaq/caiaq-device.c
rename to sound/usb/caiaq/device.c
index cf573a9..6d51770 100644
--- a/sound/usb/caiaq/caiaq-device.c
+++ b/sound/usb/caiaq/device.c
@@ -19,27 +19,20 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/init.h>
-#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/init.h>
#include <linux/usb.h>
-#include <linux/input.h>
-#include <linux/spinlock.h>
-#include <sound/core.h>
#include <sound/initval.h>
+#include <sound/core.h>
#include <sound/pcm.h>
-#include <sound/rawmidi.h>
-#include <sound/control.h>
-#include "caiaq-device.h"
-#include "caiaq-audio.h"
-#include "caiaq-midi.h"
-#include "caiaq-control.h"
-
-#ifdef CONFIG_SND_USB_CAIAQ_INPUT
-#include "caiaq-input.h"
-#endif
+#include "device.h"
+#include "audio.h"
+#include "midi.h"
+#include "control.h"
+#include "input.h"
MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
MODULE_DESCRIPTION("caiaq USB audio, version 1.3.13");
diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/device.h
similarity index 100%
rename from sound/usb/caiaq/caiaq-device.h
rename to sound/usb/caiaq/device.h
diff --git a/sound/usb/caiaq/caiaq-input.c b/sound/usb/caiaq/input.c
similarity index 97%
rename from sound/usb/caiaq/caiaq-input.c
rename to sound/usb/caiaq/input.c
index f743847..a48d309 100644
--- a/sound/usb/caiaq/caiaq-input.c
+++ b/sound/usb/caiaq/input.c
@@ -17,17 +17,12 @@
*/
#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/input.h>
#include <linux/usb.h>
#include <linux/usb/input.h>
-#include <linux/spinlock.h>
-#include <sound/core.h>
-#include <sound/rawmidi.h>
#include <sound/pcm.h>
-#include "caiaq-device.h"
-#include "caiaq-input.h"
+
+#include "device.h"
+#include "input.h"
static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
diff --git a/sound/usb/caiaq/caiaq-input.h b/sound/usb/caiaq/input.h
similarity index 100%
rename from sound/usb/caiaq/caiaq-input.h
rename to sound/usb/caiaq/input.h
diff --git a/sound/usb/caiaq/caiaq-midi.c b/sound/usb/caiaq/midi.c
similarity index 95%
rename from sound/usb/caiaq/caiaq-midi.c
rename to sound/usb/caiaq/midi.c
index f19fd36..8fa8cd8 100644
--- a/sound/usb/caiaq/caiaq-midi.c
+++ b/sound/usb/caiaq/midi.c
@@ -16,20 +16,13 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/interrupt.h>
#include <linux/usb.h>
-#include <linux/input.h>
-#include <linux/spinlock.h>
-#include <sound/core.h>
#include <sound/rawmidi.h>
+#include <sound/core.h>
#include <sound/pcm.h>
-#include "caiaq-device.h"
-#include "caiaq-midi.h"
-
+#include "device.h"
+#include "midi.h"
static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream)
{
diff --git a/sound/usb/caiaq/caiaq-midi.h b/sound/usb/caiaq/midi.h
similarity index 100%
rename from sound/usb/caiaq/caiaq-midi.h
rename to sound/usb/caiaq/midi.h
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index 98276aa..012ff1f 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -349,14 +349,10 @@
if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
return -ENOTTY;
- cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
- if (!cfg)
- return -ENOMEM;
+ cfg = memdup_user((void *)arg, sizeof(*cfg));
+ if (IS_ERR(cfg))
+ return PTR_ERR(cfg);
- if (copy_from_user(cfg, (void *)arg, sizeof(*cfg))) {
- err = -EFAULT;
- goto free;
- }
if (cfg->version != USB_STREAM_INTERFACE_VERSION) {
err = -ENXIO;
goto free;
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 4af8740..f3d8f71 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -203,13 +203,12 @@
if (access_ok(VERIFY_READ, dsp->image, dsp->length)) {
struct usb_device* dev = priv->chip.dev;
- char *buf = kmalloc(dsp->length, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- if (copy_from_user(buf, dsp->image, dsp->length)) {
- kfree(buf);
- return -EFAULT;
- }
+ char *buf;
+
+ buf = memdup_user(dsp->image, dsp->length);
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
err = usb_set_interface(dev, 0, 1);
if (err)
snd_printk(KERN_ERR "usb_set_interface error \n");