- Incremental development for the Langwell (Atom SoC),
Xilinx, ICH and RCAR drivers.
- Cleanups from Jingoo Han, Axel Lin, Wei Jongjun,
Wolfram Sang, Tushar Behera, Sachin Kamat and Yijing Wang.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.13 (GNU/Linux)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=5JfC
-----END PGP SIGNATURE-----
Merge tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"Here is a batch of GPIO changes for v3.11. I have agreed with Grant
to take care of the pull requests for this development cycle.
No special things are happening in the GPIO tree this time (nice with
some calm) and I have been extra careful to do regression builds and
it's well boiled in -next.
GPIO changes for the v3.11 development cycle:
- Incremental development for the Langwell (Atom SoC), Xilinx, ICH
and RCAR drivers.
- Cleanups from Jingoo Han, Axel Lin, Wei Jongjun, Wolfram Sang,
Tushar Behera, Sachin Kamat and Yijing Wang"
* tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (35 commits)
Gpio/trivial: replace numeric with standard PM state macros
gpiolib: remove warnning of allocations with IRQs disabled
gpio: grgpio: Staticize local symbols
gpio-langwell: remove Withney point support
gpio: ich: add GPO_BLINK support
gpio-sta2x11: Convert to use devm_ioremap_resource
gpio_msm: Convert to use devm_ioremap_resource
gpio-rcar: Use OUTDT when reading GPIOs configured as output
gpio-sta2x11: Fix potential NULL pointer dereference
gpio/omap: omap_gpio_init_context stub must be inline
gpio: msm-v1: Remove errant __devinit to fix compile
gpio: devres: make comments proper
GPIO: xilinx: Enable driver for Xilinx zynq
DT: Add documentation for gpio-xilinx
GPIO: xilinx: Use BIT macro
GPIO: xilinx: Use __raw_readl/__raw_writel IO functions
GPIO: xilinx: Add support for dual channel
GPIO: xilinx: Simplify driver probe function
gpio: sx150x: convert to use devm_* functions
MAINTAINERS: add linux-gpio mailing list
...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=Dm06
-----END PGP SIGNATURE-----
Merge tag 'please-pull-mce-therm' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull thermal power-limit update from Tony Luck:
"Thermal limit warnings are too scary and cause unnecessary concern"
* tag 'please-pull-mce-therm' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
x86 thermal: Disable power limit notification interrupt by default
x86 thermal: Delete power-limit-notification console messages
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=Xcer
-----END PGP SIGNATURE-----
Merge tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull pstore update from Tony Luck:
"Fixes for pstore for 3.11 merge window"
* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
efivars: If pstore_register fails, free unneeded pstore buffer
acpi: Eliminate console msg if pstore.backend excludes ERST
pstore: Return unique error if backend registration excluded by kernel param
pstore: Fail to unlink if a driver has not defined pstore_erase
pstore/ram: remove the power of buffer size limitation
pstore/ram: avoid atomic accesses for ioremapped regions
efi, pstore: Cocci spatch "memdup.spatch"
Pull "exotic" arch fixes from Geert Uytterhoeven:
"This is a collection of several exotic architecture fixes, and a few
other fixes for issues that were detected while doing the former"
* 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits)
lib: Move fonts from drivers/video/console/ to lib/fonts/
console/font: Refactor font support code selection logic
Revert "staging/solo6x10: depend on CONFIG_FONTS"
input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP
score: Wire up asm-generic/xor.h
score: Remove unneeded <asm/dma-mapping.h>
openrisc: Wire up asm-generic/xor.h
h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]"
h8300: Mark H83002 and H83048 CPU support broken
h8300: Switch h8300 to drivers/Kconfig
h8300: Limit timer channel ranges in Kconfig
h8300: Wire up asm-generic/xor.h
h8300: Fill the system call table using a CALL() macro
h8300: Fix <asm/tlb.h>
h8300: Hardcode symbol prefixes in asm sources
h8300: add missing definition for read_barries_depends()
frv: head.S - Remove commented-out initialization code
cris: Wire up asm-generic/vga.h
parport: disable PC-style parallel port support on cris
console: Disable VGA text console support on cris
...
Pull m68k updates from Geert Uytterhoeven.
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/q40: Enable PC parallel port in defconfig
m68k/q40: Undefine insl/outsl before redefining them
m68k/uaccess: Fix asm constraints for userspace access
swim: Release memory region after incorrect return/goto
m68k/irq: Vector ints need a valid interrupt handler
m68k/math-emu: unsigned issue, 'unsigned long' will never be less than zero
m68k: remove CONFIG_EARLY_PRINTK dependency on CONFIG_EMBEDDED, default to n
m68k/sun3: remove inline marking of EXPORT_SYMBOL functions
[SCSI] a3000: use module_platform_driver_probe()
[SCSI] a4000t: use module_platform_driver_probe()
m68k: Remove inline strcpy() and strcat() implementations
Highlights of changes:
-Continuation of ARC MM changes from 3.10 including
zero page optimization;
Setting pagecache pages dirty by default;
Non executable stack by default;
Reducing dcache flushes for aliasing VIPT config
-Long overdue rework of pt_regs machinery - removing the unused word gutters
and adding ECR register to baseline (helps cleanup lot of low level code)
-Support for ARC gcc 4.8
-Few other preventive fixes, cosmetics, usage of Kconfig helper..
The diffstat is larger than normal primarily because of arcregs.h header split
as well as beautification of macros in entry.h
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)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=65Fq
-----END PGP SIGNATURE-----
Merge tag 'arc-v3.11-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull first batch of ARC changes from Vineet Gupta:
"There's a second bunch to follow next week - which depends on commits
on other trees (irq/net). I'd have preferred the accompanying ARC
change via respective trees, but it didn't workout somehow.
Highlights of changes:
- Continuation of ARC MM changes from 3.10 including
zero page optimization
Setting pagecache pages dirty by default
Non executable stack by default
Reducing dcache flushes for aliasing VIPT config
- Long overdue rework of pt_regs machinery - removing the unused word
gutters and adding ECR register to baseline (helps cleanup lot of
low level code)
- Support for ARC gcc 4.8
- Few other preventive fixes, cosmetics, usage of Kconfig helper..
The diffstat is larger than normal primarily because of arcregs.h
header split as well as beautification of macros in entry.h"
* tag 'arc-v3.11-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (32 commits)
ARC: warn on improper stack unwind FDE entries
arc: delete __cpuinit usage from all arc files
ARC: [tlb-miss] Fix bug with CONFIG_ARC_DBG_TLB_MISS_COUNT
ARC: [tlb-miss] Extraneous PTE bit testing/setting
ARC: Adjustments for gcc 4.8
ARC: Setup Vector Table Base in early boot
ARC: Remove explicit passing around of ECR
ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth values
ARC: stop using pt_regs->orig_r8
ARC: pt_regs update #4: r25 saved/restored unconditionally
ARC: K/U SP saved from one location in stack switching macro
ARC: Entry Handler tweaks: Simplify branch for in-kernel preemption
ARC: Entry Handler tweaks: Avoid hardcoded LIMMS for ECR values
ARC: Increase readability of entry handlers
ARC: pt_regs update #3: Remove unused gutter at start of callee_regs
ARC: pt_regs update #2: Remove unused gutter at start of pt_regs
ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page
ARC: pt_regs update #0: remove kernel stack canary
ARC: [mm] Remove @write argument to do_page_fault()
ARC: [mm] Make stack/heap Non-executable by default
...
Pull s390 updates from Martin Schwidefsky:
"This is the bulk of the s390 patches for the 3.11 merge window.
Notable enhancements are: the block timeout patches for dasd from
Hannes, and more work on the PCI support front. In addition some
cleanup and the usual bug fixing."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set
s390/dasd: Add 'timeout' attribute
block: check for timeout function in blk_rq_timed_out()
block/dasd: detailed I/O errors
s390/dasd: Reduce amount of messages for specific errors
s390/dasd: Implement block timeout handling
s390/dasd: process all requests in the device tasklet
s390/dasd: make number of retries configurable
s390/dasd: Clarify comment
s390/hwsampler: Updated misleading member names in hws_data_entry
s390/appldata_net_sum: do not use static data
s390/appldata_mem: do not use static data
s390/vmwatchdog: do not use static data
s390/airq: simplify adapter interrupt code
s390/pci: remove per device debug attribute
s390/dma: remove gratuitous brackets
s390/facility: decompose test_facility()
s390/sclp: remove duplicated include from sclp_ctl.c
s390/irq: store interrupt information in pt_regs
s390/drivers: Cocci spatch "ptr_ret.spatch"
...
- KVM and Xen ports to AArch64
- Hugetlbfs and transparent huge pages support for arm64
- Applied Micro X-Gene Kconfig entry and dts file
- Cache flushing improvements
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)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=PZ/e
-----END PGP SIGNATURE-----
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64
Pull ARM64 updates from Catalin Marinas:
"Main features:
- KVM and Xen ports to AArch64
- Hugetlbfs and transparent huge pages support for arm64
- Applied Micro X-Gene Kconfig entry and dts file
- Cache flushing improvements
For arm64 huge pages support, there are x86 changes moving part of
arch/x86/mm/hugetlbpage.c into mm/hugetlb.c to be re-used by arm64"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (66 commits)
arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board
arm64: Add defines for APM ARMv8 implementation
arm64: Enable APM X-Gene SOC family in the defconfig
arm64: Add Kconfig option for APM X-Gene SOC family
arm64/Makefile: provide vdso_install target
ARM64: mm: THP support.
ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.
ARM64: mm: HugeTLB support.
ARM64: mm: Move PTE_PROT_NONE bit.
ARM64: mm: Make PAGE_NONE pages read only and no-execute.
ARM64: mm: Restore memblock limit when map_mem finished.
mm: thp: Correct the HPAGE_PMD_ORDER check.
x86: mm: Remove general hugetlb code from x86.
mm: hugetlb: Copy general hugetlb code from x86 to mm.
x86: mm: Remove x86 version of huge_pmd_share.
mm: hugetlb: Copy huge_pmd_share from x86 to mm.
arm64: KVM: document kernel object mappings in HYP
arm64: KVM: MAINTAINERS update
arm64: KVM: userspace API documentation
arm64: KVM: enable initialization of a 32bit vcpu
...
Pull ARM updates from Russell King:
"This contains the usual updates from other people (listed below) and
the usual random muddle of miscellaneous ARM updates which cover some
low priority bug fixes and performance improvements.
I've started to put the pull request wording into the merge commits,
which are:
- NoMMU stuff:
This includes the following series sent earlier to the list:
- nommu-fixes
- R7 Support
- MPU support
I've left out the ARCH_MULTIPLATFORM/!MMU stuff that Arnd and I
were discussing today until we've reached a conclusion/that's had
some more review.
This is rebased (and re-tested) on your devel-stable branch because
otherwise there were going to be conflicts with Uwe's V7M work now
that you've merged that. I've included the fix for limiting MPU to
CPU_V7.
- Huge page support
These changes bring both HugeTLB support and Transparent HugePage
(THP) support to ARM. Only long descriptors (LPAE) are supported
in this series.
The code has been tested on an Arndale board (Exynos 5250).
- LPAE updates
Please pull these miscellaneous LPAE fixes I've been collecting for
a while now for 3.11. They've been tested and reviewed by quite a
few people, and most of the patches are pretty trivial. -- Will Deacon.
- arch_timer cleanups
Please pull these arch_timer cleanups I've been holding onto for a
while. They're the same as my last posting, but have been rebased
to v3.10-rc3.
- mpidr linearisation (multiprocessor id register - identifies which
CPU number we are in the system)
This patch series that implements MPIDR linearization through a
simple hashing algorithm and updates current cpu_{suspend}/{resume}
code to use the newly created hash structures to retrieve context
pointers. It represents a stepping stone for the implementation of
power management code on forthcoming multi-cluster ARM systems.
It has been tested on TC2 (dual cluster A15xA7 system), iMX6q,
OMAP4 and Tegra, with processors hitting low-power states requiring
warm-boot resume through the cpu_resume code path"
* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
ARM: 7775/1: mm: Remove do_sect_fault from LPAE code
ARM: 7777/1: Avoid extra calls to the C compiler
ARM: 7774/1: Fix dtb dependency to use order-only prerequisites
ARM: 7770/1: remove residual ARMv2 support from decompressor
ARM: 7769/1: Cortex-A15: fix erratum 798181 implementation
ARM: 7768/1: prevent risks of out-of-bound access in ASID allocator
ARM: 7767/1: let the ASID allocator handle suspended animation
ARM: 7766/1: versatile: don't mark pen as __INIT
ARM: 7765/1: perf: Record the user-mode PC in the call chain.
ARM: 7735/2: Preserve the user r/w register TPIDRURW on context switch and fork
ARM: kernel: implement stack pointer save array through MPIDR hashing
ARM: kernel: build MPIDR hash function data structure
ARM: mpu: Ensure that MPU depends on CPU_V7
ARM: mpu: protect the vectors page with an MPU region
ARM: mpu: Allow enabling of the MPU via kconfig
ARM: 7758/1: introduce config HAS_BANDGAP
ARM: 7757/1: mm: don't flush icache in switch_mm with hardware broadcasting
ARM: 7751/1: zImage: don't overwrite ourself with a page table
ARM: 7749/1: spinlock: retry trylock operation if strex fails on free lock
ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
...
Pull second set of VFS changes from Al Viro:
"Assorted f_pos race fixes, making do_splice_direct() safe to call with
i_mutex on parent, O_TMPFILE support, Jeff's locks.c series,
->d_hash/->d_compare calling conventions changes from Linus, misc
stuff all over the place."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
Document ->tmpfile()
ext4: ->tmpfile() support
vfs: export lseek_execute() to modules
lseek_execute() doesn't need an inode passed to it
block_dev: switch to fixed_size_llseek()
cpqphp_sysfs: switch to fixed_size_llseek()
tile-srom: switch to fixed_size_llseek()
proc_powerpc: switch to fixed_size_llseek()
ubi/cdev: switch to fixed_size_llseek()
pci/proc: switch to fixed_size_llseek()
isapnp: switch to fixed_size_llseek()
lpfc: switch to fixed_size_llseek()
locks: give the blocked_hash its own spinlock
locks: add a new "lm_owner_key" lock operation
locks: turn the blocked_list into a hashtable
locks: convert fl_link to a hlist_node
locks: avoid taking global lock if possible when waking up blocked waiters
locks: protect most of the file_lock handling with i_lock
locks: encapsulate the fl_link list handling
locks: make "added" in __posix_lock_file a bool
...
When a task exits, we perform a caching of the remaining cputime delta
before expiring of its timers.
This is done from the following places:
* When the task is reaped. We iterate through its list of
posix cpu timers and store the remaining timer delta to
the timer struct instead of the absolute value.
(See posix_cpu_timers_exit() / posix_cpu_timers_exit_group() )
* When we call posix_cpu_timer_get() or posix_cpu_timer_schedule().
If the timer's task is considered dying when watched from these
places, the same conversion from absolute to relative expiry time
is performed. Then the given task's reference is released.
(See clear_dead_task() ).
The relevance of this caching is questionable but this is another
and deeper debate.
The big issue here is that these two sources of caching don't mix
up very well together.
More specifically, the caching can easily be done twice, resulting
in a wrong delta as it gets spuriously substracted a second time by
the elapsed clock. This can happen in the following scenario:
1) The task exits and gets reaped: we call posix_cpu_timers_exit()
and the absolute timer expiry values are converted to a relative
delta.
2) timer_gettime() -> posix_cpu_timer_get() is called and relies on
clear_dead_task() because tsk->exit_state == EXIT_DEAD.
The delta gets substracted again by the elapsed clock and we return
a wrong result.
To fix this, just remove the caching done on task reaping time. It
doesn't bring much value on its own. The caching done from
posix_cpu_timer_get/schedule is enough.
And it would also be hard to get it really right: we could make it put and
clear the target task in the timer struct so that readers know if they are
dealing with a relative cached of absolute value. But it would be racy.
The only safe way to do it would be to lock the itimer->it_lock so that we
know nobody reads the cputime expiry value while we modify it and its
target task reference. Doing so would involve some funny workarounds to
avoid circular lock against the sighand lock. There is just no reason to
maintain this.
The user visible effect of this patch can be observed by running the
following code: it creates a subthread that launches a posix cputimer
which expires after 10 seconds. But then the subthread only busy loops for 2
seconds and exits. The parent reaps the subthread and read the timer value.
Its expected value should the be the initial timer's expiration value
minus the cputime elapsed in the subthread. Roughly 10 - 2 = 8 seconds:
#include <sys/time.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <pthread.h>
static timer_t id;
static struct itimerspec val = { .it_value.tv_sec = 10, }, new;
static void *thread(void *unused)
{
int err;
struct timeval start, end, diff;
timer_create(CLOCK_THREAD_CPUTIME_ID, NULL, &id);
if (err < 0) {
perror("Can't create timer\n");
return NULL;
}
/* Arm 10 sec timer */
err = timer_settime(id, 0, &val, NULL);
if (err < 0) {
perror("Can't set timer\n");
return NULL;
}
/* Exit after 2 seconds of execution */
gettimeofday(&start, NULL);
do {
gettimeofday(&end, NULL);
timersub(&end, &start, &diff);
} while (diff.tv_sec < 2);
return NULL;
}
int main(int argc, char **argv)
{
pthread_t pthread;
int err;
err = pthread_create(&pthread, NULL, thread, NULL);
if (err) {
perror("Can't create thread\n");
return -1;
}
pthread_join(pthread, NULL);
/* Just wait a little bit to make sure the child got reaped */
sleep(1);
err = timer_gettime(id, &new);
if (err)
perror("Can't get timer value\n");
printf("%d %ld\n", new.it_value.tv_sec, new.it_value.tv_nsec);
return 0;
}
Before the patch:
$ ./posix_cpu_timers
6 2278074
After the patch:
$ ./posix_cpu_timers
8 1158766
Before the patch, the elapsed time got two more seconds spuriously accounted.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
In order to re-arm a timer after it fired, we take a sample of the current
process or thread cputime.
If the task is dying though, we don't arm anything but we cache the
remaining timer expiration delta for further reads.
Something similar is performed in posix_cpu_timer_get() but here we forget
to take the process wide cputime sample before caching it.
As a result we are storing random stack content, leading every further
reads of that timer to return junk values.
Fix this by taking the appropriate sample in the case of process wide
timers.
This probably doesn't matter much in practice because, at this stage, the
thread is the last one in the group and we reached exit_notify(). This
implies that we called exit_itimers() and there should be no more timers
to handle for that task.
So this is likely dead code anyway but let's fix the current logic
and the warning that came along:
kernel/posix-cpu-timers.c: In function 'posix_cpu_timer_schedule':
kernel/posix-cpu-timers.c:1127: warning: 'now' may be used uninitialized in this function
Then we can start to think further about cleaning up that code.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Chen Gang <gang.chen@asianux.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add some initial basic tests on a few posix timers interface such as
setitimer() and timer_settime().
These simply check that expiration happens in a reasonable timeframe after
expected elapsed clock time (user time, user + system time, real time,
...).
This is helpful for finding basic breakages while hacking
on this subsystem.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Consolidate the common code amongst per thread and per process timers list
on tick time.
List traversal, expiry check and subsequent updates can be shared in a
common helper.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cleaning up the posix cpu timers on task exit shares some common code
among timer list types, most notably the list traversal and expiry time
update.
Unify this in a common helper.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The posix cpu timer expiry time is stored in a union of two types: a 64
bits field if we rely on scheduler precise accounting, or a cputime_t if
we rely on jiffies.
This results in quite some duplicate code and special cases to handle the
two types.
Just unify this into a single 64 bits field. cputime_t can always fit
into it.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
For those file systems(btrfs/ext4/ocfs2/tmpfs) that support
SEEK_DATA/SEEK_HOLE functions, we end up handling the similar
matter in lseek_execute() to update the current file offset
to the desired offset if it is valid, ceph also does the
simliar things at ceph_llseek().
To reduce the duplications, this patch make lseek_execute()
public accessible so that we can call it directly from the
underlying file systems.
Thanks Dave Chinner for this suggestion.
[AV: call it vfs_setpos(), don't bring the removed 'inode' argument back]
v2->v1:
- Add kernel-doc comments for lseek_execute()
- Call lseek_execute() in ceph->llseek()
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chris Mason <chris.mason@fusionio.com>
Cc: Josef Bacik <jbacik@fusionio.com>
Cc: Ben Myers <bpm@sgi.com>
Cc: Ted Tso <tytso@mit.edu>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Sage Weil <sage@inktank.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The commit [1ca2f2ec: ALSA: vmaster: Add snd_ctl_sync_vmaster() helper
function] changed master_put() function and the check for the required
vmaster hook call is wrongly performed now, which results in the
missing hook call upon "Master Playback Switch" value changes.
This patch corrects the check logic.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Since the driver was converted to polled device infrastructure we need
to make sure it is enabled.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The June 2013 Macbook Air (13'') has a new trackpad protocol; four new
values are inserted in the header, and the mode switch is no longer
needed. This patch adds support for the new devices.
Cc: stable@vger.kernel.org
Reported-and-tested-by: Brad Ford <plymouthffl@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds keyboard support for MacbookAir6,2 as WELLSPRING8
(0x0291, 0x0292, 0x0293). The touchpad is handled in a separate
bcm5974 patch, as usual.
Cc: stable@vger.kernel.org
Reported-and-tested-by: Brad Ford <plymouthffl@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
We leak "cd" if the cd->xfer_buf allocation fails. It was weird to
"goto error_gpio_irq" so I changed the label name. (Label names should
reflect the label location not the goto location otherwise you get an
"all roads lead to Rome problem").
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
If "cd" were NULL then we would dereference it when we print the error
message. Fortunately enough, it can't ever be NULL so we can remove
those lines.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
"*max" is a size_t (long) type but "1" is an int so static checkers
complain that the shift could wrap.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull cpuset changes from Tejun Heo:
"cpuset has always been rather odd about its configurations - a cgroup
right after creation didn't allow any task executions before
configuration, changing configuration in the parent modifies the
descendants irreversibly and so on. These behaviors are inherently
nasty and almost hostile against sharing the hierarchy with other
controllers making it very difficult to use in unified hierarchy.
Li is currently in the process of updating the behaviors for
__DEVEL__sane_behavior which is the bulk of changes in this pull
request. It isn't complete yet and the behaviors will change further
but all changes are gated behind sane_behavior. In the process, the
rather hairy work-item punting which was used to work around the
limitations of cgroup descendant iterator was simplified."
* 'for-3.11-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: rename @cont to @cgrp
cpuset: fix to migrate mm correctly in a corner case
cpuset: allow to move tasks to empty cpusets
cpuset: allow to keep tasks in empty cpusets
cpuset: introduce effective_{cpumask|nodemask}_cpuset()
cpuset: record old_mems_allowed in struct cpuset
cpuset: remove async hotplug propagation work
cpuset: let hotplug propagation work wait for task attaching
cpuset: re-structure update_cpumask() a bit
cpuset: remove cpuset_test_cpumask()
cpuset: remove unnecessary variable in cpuset_attach()
cpuset: cleanup guarantee_online_{cpus|mems}()
cpuset: remove redundant check in cpuset_cpus_allowed_fallback()
Pull cgroup changes from Tejun Heo:
"This pull request contains the following changes.
- cgroup_subsys_state (css) reference counting has been converted to
percpu-ref. css is what each resource controller embeds into its
own control structure and perform reference count against. It may
be used in hot paths of various subsystems and is similar to module
refcnt in that aspect. For example, block-cgroup's css refcnting
was showing up a lot in Mikulaus's device-mapper scalability work
and this should alleviate it.
- cgroup subtree iterator has been updated so that RCU read lock can
be released after grabbing reference. This allows simplifying its
users which requires blocking which used to build iteration list
under RCU read lock and then traverse it outside. This pull
request contains simplification of cgroup core and device-cgroup.
A separate pull request will update cpuset.
- Fixes for various bugs including corner race conditions and RCU
usage bugs.
- A lot of cleanups and some prepartory work for the planned unified
hierarchy support."
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (48 commits)
cgroup: CGRP_ROOT_SUBSYS_BOUND should also be ignored when mounting an existing hierarchy
cgroup: CGRP_ROOT_SUBSYS_BOUND should be ignored when comparing mount options
cgroup: fix deadlock on cgroup_mutex via drop_parsed_module_refcounts()
cgroup: always use RCU accessors for protected accesses
cgroup: fix RCU accesses around task->cgroups
cgroup: fix RCU accesses to task->cgroups
cgroup: grab cgroup_mutex in drop_parsed_module_refcounts()
cgroup: fix cgroupfs_root early destruction path
cgroup: reserve ID 0 for dummy_root and 1 for unified hierarchy
cgroup: implement for_each_[builtin_]subsys()
cgroup: move init_css_set initialization inside cgroup_mutex
cgroup: s/for_each_subsys()/for_each_root_subsys()/
cgroup: clean up find_css_set() and friends
cgroup: remove cgroup->actual_subsys_mask
cgroup: prefix global variables with "cgroup_"
cgroup: convert CFTYPE_* flags to enums
cgroup: rename cont to cgrp
cgroup: clean up cgroup_serial_nr_cursor
cgroup: convert cgroup_cft_commit() to use cgroup_for_each_descendant_pre()
cgroup: make serial_nr_cursor available throughout cgroup.c
...
libata/for-3.10-fixes never got submitted during v3.10 cycle. Merge
it into for-3.11 so that it can be routed together with other changes
scheduled for v3.11.
Three trivial conflicts in drivers/ata/sata_rcar.c. All are caused by
1b20f6a9ad ("sata_rcar: add 'base' local variable to some functions")
conflicting with logic updates in for-3.10-fixes. The offending
commit simply adds local variable @base on functions which
dereferences sata_rcar_priv->base multiple times. The resolutions are
trivial - applying s/priv->base/base/ in the conflicting logic
updates.
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull workqueue changes from Tejun Heo:
"Surprisingly, Lai and I didn't break too many things implementing
custom pools and stuff last time around and there aren't any follow-up
changes necessary at this point.
The only change in this pull request is Viresh's patches to make some
per-cpu workqueues to behave as unbound workqueues dependent on a boot
param whose default can be configured via a config option. This leads
to higher processing overhead / lower bandwidth as more work items are
bounced across CPUs; however, it can lead to noticeable powersave in
certain configurations - ~10% w/ idlish constant workload on a
big.LITTLE configuration according to Viresh.
This is because per-cpu workqueues interfere with how the scheduler
perceives whether or not each CPU is idle by forcing pinned tasks on
them, which makes the scheduler's power-aware scheduling decisions
less effective.
Its effectiveness is likely less pronounced on homogenous
configurations and this type of optimization can probably be made
automatic; however, the changes are pretty minimal and the affected
workqueues are clearly marked, so it's an easy gain for some
configurations for the time being with pretty unintrusive changes."
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
fbcon: queue work on power efficient wq
block: queue work on power efficient wq
PHYLIB: queue work on system_power_efficient_wq
workqueue: Add system wide power_efficient workqueues
workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues
Pull per-cpu changes from Tejun Heo:
"This pull request contains Kent's per-cpu reference counter. It has
gone through several iterations since the last time and the dynamic
allocation is gone.
The usual usage is relatively straight-forward although async kill
confirm interface, which is not used int most cases, is somewhat icky.
There also are some interface concerns - e.g. I'm not sure about
passing in @relesae callback during init as that becomes funny when we
later implement synchronous kill_and_drain - but nothing too serious
and it's quite useable now.
cgroup_subsys_state refcnting has already been converted and we should
convert module refcnt (Kent?)"
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu-refcount: use RCU-sched insted of normal RCU
percpu-refcount: implement percpu_tryget() along with percpu_ref_kill_and_confirm()
percpu-refcount: implement percpu_ref_cancel_init()
percpu-refcount: add __must_check to percpu_ref_init() and don't use ACCESS_ONCE() in percpu_ref_kill_rcu()
percpu-refcount: cosmetic updates
percpu-refcount: consistently use plain (non-sched) RCU
percpu-refcount: Don't use silly cmpxchg()
percpu: implement generic percpu refcounting
1/ If a RAID10 is being reshaped to a fewer number of devices
and is stopped while this is ongoing, then when the array is
reassembled the 'mirrors' array will be allocated too small.
This will lead to an access error or memory corruption.
2/ A sanity test for a reshaping RAID10 array is restarted
is slightly incorrect.
Due to the first bug, this is suitable for any -stable
kernel since 3.5 where this code was introduced.
Cc: stable@vger.kernel.org (v3.5+)
Signed-off-by: NeilBrown <neilb@suse.de>
After last md.txt edits for sync_min/max, sync_max description became
doubled. Removing 1st copy, merging details into common
sync_min/sync_max section.
Signed-off-by: Roman Ovchinnikov <coolthecold@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Pull x86 UV update from Ingo Molnar:
"There's a single commit in this tree, which adds support for a new SGI
UV GRU (Global Reference Unit - fast NUMA messaging ASIC) hardware
feature to scale up and beyond: an optional distributed mode that will
allow per-node address mapping of local GRU space, as opposed to
mapping all GRU hardware to the same contiguous high space"
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/UV: Add GRU distributed mode mappings
Pull x86 tracing updates from Ingo Molnar:
"This tree adds IRQ vector tracepoints that are named after the handler
and which output the vector #, based on a zero-overhead approach that
relies on changing the IDT entries, by Seiji Aguchi.
The new tracepoints look like this:
# perf list | grep -i irq_vector
irq_vectors:local_timer_entry [Tracepoint event]
irq_vectors:local_timer_exit [Tracepoint event]
irq_vectors:reschedule_entry [Tracepoint event]
irq_vectors:reschedule_exit [Tracepoint event]
irq_vectors:spurious_apic_entry [Tracepoint event]
irq_vectors:spurious_apic_exit [Tracepoint event]
irq_vectors:error_apic_entry [Tracepoint event]
irq_vectors:error_apic_exit [Tracepoint event]
[...]"
* 'x86-tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tracing: Add config option checking to the definitions of mce handlers
trace,x86: Do not call local_irq_save() in load_current_idt()
trace,x86: Move creation of irq tracepoints from apic.c to irq.c
x86, trace: Add irq vector tracepoints
x86: Rename variables for debugging
x86, trace: Introduce entering/exiting_irq()
tracing: Add DEFINE_EVENT_FN() macro
Pull x86 RAS update from Ingo Molnar:
"The changes in this tree are:
- ACPI APEI (ACPI Platform Error Interface) improvements, by Chen
Gong
- misc MCE fixes/cleanups"
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Update MCE severity condition check
mce: acpi/apei: Add comments to clarify usage of the various bitfields in the MCA subsystem
ACPI/APEI: Update einj documentation for param1/param2
ACPI/APEI: Add parameter check before error injection
ACPI, APEI, EINJ: Fix error return code in einj_init()
x86, mce: Fix "braodcast" typo
Pull x86 platform updates from Ingo Molnar:
"Two changes:
- A Kconfig dependency fix/cleanup
- Introduce the 'make kvmconfig' KVM configuration helper utility
that turns the current .config into a KVM-bootable config. Useful
for debugging specific native kernel configs that have no KVM
config options enabled on VM setups."
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform: Make X86_GOLDFISH depend on X86_EXTENDED_PLATFORM
x86/platform: Add kvmconfig to the phony targets
x86, platform, kvm, kconfig: Turn existing .config's into KVM-capable configs
Pull x86 mm changes from Ingo Molnar:
"Misc improvements:
- Fix /proc/mtrr reporting
- Fix ioremap printout
- Remove the unused pvclock fixmap entry on 32-bit
- misc cleanups"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioremap: Correct function name output
x86: Fix /proc/mtrr with base/size more than 44bits
ix86: Don't waste fixmap entries
x86/mm: Drop unneeded include <asm/*pgtable, page*_types.h>
x86_64: Correct phys_addr in cleanup_highmap comment
Pull x86 microcode loading update from Ingo Molnar:
"Two main changes that improve microcode loading on AMD CPUs:
- Add support for all-in-one binary microcode files that concatenate
the microcode images of multiple processor families, by Jacob Shin
- Add early microcode loading (embedded in the initrd) support, also
by Jacob Shin"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode, amd: Another early loading fixup
x86, microcode, amd: Allow multiple families' bin files appended together
x86, microcode, amd: Make find_ucode_in_initrd() __init
x86, microcode, amd: Fix warnings and errors on with CONFIG_MICROCODE=m
x86, microcode, amd: Early microcode patch loading support for AMD
x86, microcode, amd: Refactor functions to prepare for early loading
x86, microcode: Vendor abstract out save_microcode_in_initrd()
x86, microcode, intel: Correct typo in printk
Pull x86 FPU changes from Ingo Molnar:
"There are two bigger changes in this tree:
- Add an [early-use-]safe static_cpu_has() variant and other
robustness improvements, including the new X86_DEBUG_STATIC_CPU_HAS
configurable debugging facility, motivated by recent obscure FPU
code bugs, by Borislav Petkov
- Reimplement FPU detection code in C and drop the old asm code, by
Peter Anvin."
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, fpu: Use static_cpu_has_safe before alternatives
x86: Add a static_cpu_has_safe variant
x86: Sanity-check static_cpu_has usage
x86, cpu: Add a synthetic, always true, cpu feature
x86: Get rid of ->hard_math and all the FPU asm fu
Pull x86 EFI changes from Ingo Molnar:
"Two fixes that should in principle increase robustness of our
interaction with the EFI firmware, and a cleanup"
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, efi: retry ExitBootServices() on failure
efi: Convert runtime services function ptrs
UEFI: Don't pass boot services regions to SetVirtualAddressMap()
Pull x86 debug update from Ingo Molnar:
"Misc debuggability improvements:
- Optimize the x86 CPU register printout a bit
- Expose the tboot TXT log via debugfs
- Small do_debug() cleanup"
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tboot: Provide debugfs interfaces to access TXT log
x86: Remove weird PTR_ERR() in do_debug
x86/debug: Only print out DR registers if they are not power-on defaults
Pull x86 cpu updates from Ingo Molnar:
"Two changes:
- Extend 32-bit double fault debugging aid to 64-bit
- Fix a build warning"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel/cacheinfo: Shut up last long-standing warning
x86: Extend #DF debugging aid to 64-bit
Pull x86 cleanups from Ingo Molnar:
"Misc x86 cleanups"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, reloc: Use xorl instead of xorq in relocate_kernel_64.S
x86, cleanups: Remove extra tab in __flush_tlb_one()
x86/mce: Remove check for CONFIG_X86_MCE_P4THERMAL
Pull x86 boot build fix from Ingo Molnar:
"Small fixlet for the build process"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Close opened file descriptor
Pull asm/x86 changes from Ingo Molnar:
"Misc changes, with a bigger processor-flags cleanup/reorganization by
Peter Anvin"
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, asm, cleanup: Replace open-coded control register values with symbolic
x86, processor-flags: Fix the datatypes and add bit number defines
x86: Rename X86_CR4_RDWRGSFS to X86_CR4_FSGSBASE
x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED
linux/const.h: Add _BITUL() and _BITULL()
x86/vdso: Convert use of typedef ctl_table to struct ctl_table
x86: __force_order doesn't need to be an actual variable
Pull voluntary preemption fixes from Ingo Molnar:
"This tree contains a speedup which is achieved through better
might_sleep()/might_fault() preemption point annotations for uaccess
functions, by Michael S Tsirkin:
1. The only reason uaccess routines might sleep is if they fault.
Make this explicit for all architectures.
2. A voluntary preemption point in uaccess functions means compiler
can't inline them efficiently, this breaks assumptions that they
are very fast and small that e.g. net code seems to make. Remove
this preemption point so behaviour matches with what callers
assume.
3. Accesses (e.g through socket ops) to kernel memory with KERNEL_DS
like net/sunrpc does will never sleep. Remove an unconditinal
might_sleep() in the might_fault() inline in kernel.h (used when
PROVE_LOCKING is not set).
4. Accesses with pagefault_disable() return EFAULT but won't cause
caller to sleep. Check for that and thus avoid might_sleep() when
PROVE_LOCKING is set.
These changes offer a nice speedup for CONFIG_PREEMPT_VOLUNTARY=y
kernels, here's a network bandwidth measurement between a virtual
machine and the host:
before:
incoming: 7122.77 Mb/s
outgoing: 8480.37 Mb/s
after:
incoming: 8619.24 Mb/s [ +21.0% ]
outgoing: 9455.42 Mb/s [ +11.5% ]
I kept these changes in a separate tree, separate from scheduler
changes, because it's a mixed MM and scheduler topic"
* 'sched-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mm, sched: Allow uaccess in atomic with pagefault_disable()
mm, sched: Drop voluntary schedule from might_fault()
x86: uaccess s/might_sleep/might_fault/
tile: uaccess s/might_sleep/might_fault/
powerpc: uaccess s/might_sleep/might_fault/
mn10300: uaccess s/might_sleep/might_fault/
microblaze: uaccess s/might_sleep/might_fault/
m32r: uaccess s/might_sleep/might_fault/
frv: uaccess s/might_sleep/might_fault/
arm64: uaccess s/might_sleep/might_fault/
asm-generic: uaccess s/might_sleep/might_fault/
