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Anton Vorontsov 3eaa73bde2 arm: use clear_tasks_mm_cpumask() 
Checking for process->mm is not enough because process' main thread may
exit or detach its mm via use_mm(), but other threads may still have a
valid mm.

To fix this we would need to use find_lock_task_mm(), which would walk up
all threads and returns an appropriate task (with task lock held).

clear_tasks_mm_cpumask() has this issue fixed, so let's use it.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-31 17:49:29 -07:00
..
.gitignore
[ARM] 5194/1: update .gitignore
2008-08-12 19:54:09 +01:00
arch_timer.c
ARM: architected timers: remove support for non DT platforms
2012-04-27 13:39:25 +01:00
armksyms.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
arthur.c
…
asm-offsets.c
ARM: 7114/1: cache-l2x0: add resume entry for l2 in secure mode
2011-10-17 09:11:51 +01:00
atags.c
clean up atags exporting code
2008-05-30 10:33:49 +02:00
atags.h
…
bios32.c
ARM: PCI: remove per-pci_hw list of buses
2012-05-16 15:24:12 +01:00
calls.S
ARM: wire up process_vm_writev and process_vm_readv syscalls
2011-11-17 16:58:00 +00:00
compat.c
ARM: deprecate support for old way to pass kernel parameters
2010-07-07 16:38:36 +02:00
compat.h
ARM: deprecate support for old way to pass kernel parameters
2010-07-07 16:38:36 +02:00
cpuidle.c
cpuidle: Add common time keeping and irq enabling
2012-03-21 01:59:40 -04:00
crash_dump.c
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
debug.S
ARM: cleanups of io includes
2012-03-29 18:02:10 -07:00
devtree.c
arm: convert core files from module.h to export.h
2011-10-31 19:30:49 -04:00
dma-isa.c
ARM: dma-isa: request cascade channel after registering it
2009-12-24 18:34:08 +00:00
dma.c
locking, ARM: Annotate low level hw locks as raw
2011-09-13 11:12:14 +02:00
early_printk.c
ARM: Add an earlyprintk debug console
2009-12-09 10:02:18 +00:00
elf.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
entry-armv.S
ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs
2012-05-05 05:50:50 +01:00
entry-common.S
ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs
2012-05-05 05:50:50 +01:00
entry-header.S
Merge branch 'devel-stable' into for-next
2011-07-22 23:09:07 +01:00
etm.c
arm: fix implicit module.h users by adding it to arch/arm as required.
2011-10-31 19:30:50 -04:00
fiq.c
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
fiqasm.S
ARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2
2011-05-26 10:31:06 +01:00
ftrace.c
ARM: 7331/1: extract out insn generation code from ftrace
2012-03-24 09:38:55 +00:00
head-common.S
arm/dt: Make __vet_atags also accept a dtb image
2011-05-11 15:12:32 +02:00
head-nommu.S
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
head.S
ARM: 7363/1: DEBUG_LL: limit early mapping to the minimum
2012-05-04 16:56:46 +01:00
hw_breakpoint.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
insn.c
ARM: fix missing bug.h include in arch/arm/kernel/insn.c
2012-03-30 11:51:46 +01:00
insn.h
ARM: 7334/1: add jump label support
2012-03-24 09:38:56 +00:00
io.c
arm: convert core files from module.h to export.h
2011-10-31 19:30:49 -04:00
irq.c
ARM: 7406/1: hotplug: copy the affinity mask when forcefully migrating IRQs
2012-04-28 11:01:31 +01:00
isa.c
sysctl: Drop & in front of every proc_handler.
2009-11-18 08:37:40 -08:00
iwmmxt.S
ARM: pxa: fix logic error in PJ4 iWMMXt handling
2011-08-11 10:10:26 +08:00
jump_label.c
ARM: 7334/1: add jump label support
2012-03-24 09:38:56 +00:00
kgdb.c
kgdb,arm: fix register dump
2010-10-29 13:14:40 -05:00
kprobes-arm.c
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
2011-11-30 23:54:54 +00:00
kprobes-common.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
kprobes-test-arm.c
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
2011-11-30 23:54:54 +00:00
kprobes-test-thumb.c
ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
2011-11-26 21:58:53 +00:00
kprobes-test.c
ARM: 7209/1: Use generic ARM instruction set condition code checks for kprobes.
2011-12-13 08:52:03 +00:00
kprobes-test.h
ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
2011-11-26 21:58:53 +00:00
kprobes-thumb.c
ARM: kprobes: Add exports for test code
2011-09-20 18:17:43 +00:00
kprobes.c
Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
2012-04-02 08:53:24 -07:00
kprobes.h
ARM: kprobes: Add exports for test code
2011-09-20 18:17:43 +00:00
leds.c
arm: leds: convert sysdev_class to a regular subsystem
2011-12-21 15:52:57 -08:00
machine_kexec.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
Makefile
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-05-21 19:43:57 -07:00
module.c
ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_*
2011-08-23 15:30:33 +01:00
opcodes.c
ARM: 7206/1: Add generic ARM instruction set condition code checks.
2011-12-13 08:52:02 +00:00
patch.c
ARM: 7332/1: extract out code patch function from kprobes
2012-03-24 09:38:55 +00:00
patch.h
ARM: 7332/1: extract out code patch function from kprobes
2012-03-24 09:38:55 +00:00
perf_event_v6.c
perf: Pass last sampling period to perf_sample_data_init()
2012-05-09 15:23:12 +02:00
perf_event_v7.c
perf: Pass last sampling period to perf_sample_data_init()
2012-05-09 15:23:12 +02:00
perf_event_xscale.c
perf: Pass last sampling period to perf_sample_data_init()
2012-05-09 15:23:12 +02:00
perf_event.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
pj4-cp0.c
arm: remove several unnecessary module.h include instances
2011-10-31 19:30:48 -04:00
pmu.c
ARM: PMU: re-export release_pmu symbol to modules
2011-11-16 10:06:42 +00:00
process.c
arm: Remove unused cpu_idle_wait()
2012-05-08 12:35:06 +02:00
ptrace.c
Merge branch 'misc' into for-linus
2012-05-21 15:15:24 +01:00
relocate_kernel.S
ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
2011-08-28 10:39:41 +01:00
return_address.c
arm: convert core files from module.h to export.h
2011-10-31 19:30:49 -04:00
sched_clock.c
ARM: sync sched_clock() state on suspend
2012-03-24 09:38:53 +00:00
setup.c
arm-soc: sweeping late_initcall cleanup
2012-05-26 13:14:01 -07:00
signal.c
new helper: sigsuspend()
2012-05-21 23:52:30 -04:00
signal.h
ARM: Fix signal restart issues with NX and OABI compat
2009-10-25 15:39:37 +00:00
sleep.S
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
smp_scu.c
ARM: 7347/1: SCU: use cpu_logical_map for per-CPU low power mode
2012-04-28 17:31:37 +01:00
smp_tlb.c
smp: introduce a generic on_each_cpu_mask() function
2012-03-28 17:14:35 -07:00
smp_twd.c
Revert "ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus"
2012-04-19 19:35:10 +01:00
smp.c
arm: use clear_tasks_mm_cpumask()
2012-05-31 17:49:29 -07:00
stacktrace.c
arm: convert core files from module.h to export.h
2011-10-31 19:30:49 -04:00
suspend.c
ARM: suspend: use idmap_pgd instead of suspend_pgd
2011-12-06 14:04:14 +00:00
swp_emulate.c
ARM: 7208/1: Add condition code checking to SWP emulation handler.
2011-12-13 08:52:03 +00:00
sys_arm.c
ARM: 7410/1: Add extra clobber registers for assembly in kernel_execve
2012-05-05 13:54:01 +01:00
sys_oabi-compat.c
userns: Convert stat to return values mapped from kuids and kgids
2012-05-15 14:08:35 -07:00
tcm.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
tcm.h
ARM: 5580/2: ARM TCM (Tightly-Coupled Memory) support v3
2009-09-15 22:11:05 +01:00
thumbee.c
ARM: 7385/1: ThumbEE: Use cpuid macros to read ID_PFR0 for ThumbEE
2012-04-25 19:49:26 +01:00
time.c
ARM: 7413/1: move read_{boot,persistent}_clock to the architecture level
2012-05-06 11:09:21 +01:00
topology.c
ARM: 7182/1: ARM cpu topology: fix warning
2011-11-30 23:55:21 +00:00
traps.c
ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails
2012-05-02 11:12:49 +01:00
unwind.c
ARM: unwinder: fix bisection to find origin in .idx section
2011-12-15 14:02:19 -08:00
vmlinux.lds.S
ARM: 7320/1: Fix proc_info table alignment
2012-02-09 16:25:37 +00:00
xscale-cp0.c
arm: remove several unnecessary module.h include instances
2011-10-31 19:30:48 -04:00