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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
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boot arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
common Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-05-25 09:18:59 -07:00
configs rtc: rename CONFIG_RTC_MXC to CONFIG_RTC_DRV_MXC 2012-05-29 16:22:33 -07:00
include/asm arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
kernel arm: use clear_tasks_mm_cpumask() 2012-05-31 17:49:29 -07:00
lib
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mach-at91 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-05-25 09:31:59 -07:00
mach-bcmring
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mach-clps711x ARM: clps711x: Cleanup IRQ handling 2012-05-15 21:20:59 +02:00
mach-cns3xxx ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-davinci arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-dove arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
mach-ebsa110
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mach-ep93xx arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-exynos arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-footbridge ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-gemini
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mach-h720x
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mach-highbank
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mach-imx arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-integrator Merge branches 'amba', 'devel-stable', 'fixes', 'mach-types', 'mmci', 'pci' and 'versatile' into for-linus 2012-05-21 15:15:10 +01:00
mach-iop13xx ARM: PCI: get rid of pci_std_swizzle() 2012-05-13 17:12:16 +01:00
mach-iop32x ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-iop33x ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-ixp4xx Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-05-21 16:01:50 -07:00
mach-kirkwood arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
mach-ks8695 ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-l7200/include/mach
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mach-lpc32xx GPIO driver changes for v3.5 merge window 2012-05-24 14:01:46 -07:00
mach-mmp arm-soc: board specific changes 2012-05-22 13:32:53 -07:00
mach-msm arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-mv78xx0 arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
mach-mxs arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
mach-netx
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mach-nomadik ARM: nomadik: enable PINCTRL_NOMADIK where needed 2012-05-15 14:42:57 +02:00
mach-omap1 arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-omap2 arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-orion5x arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
mach-picoxcell
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mach-pnx4008 arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-prima2 arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-pxa arm-soc: board specific changes 2012-05-22 13:32:53 -07:00
mach-realview
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mach-rpc
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mach-s3c24xx arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
mach-s3c64xx arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-s3c2410
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mach-s3c2412
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mach-s3c2440
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mach-s5p64x0 ARM: S5P64X0: Use common macro to define resources on dev-audio.c 2012-05-12 16:12:30 +09:00
mach-s5pc100 ARM: S5PC100: Use common macro to define resources on dev-audio.c 2012-05-12 16:12:30 +09:00
mach-s5pv210 USB 3.5-rc1 pull request 2012-05-22 15:50:46 -07:00
mach-sa1100 arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-shark ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
mach-shmobile arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-spear3xx arm-soc: soc-specific pinctrl changes 2012-05-22 09:39:42 -07:00
mach-spear6xx arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
mach-spear13xx pinctrl: Add SPEAr13xx pinctrl drivers 2012-05-14 17:34:07 +02:00
mach-tegra arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
mach-u300
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mach-ux500 MFD changes for 3.5 2012-05-29 11:53:11 -07:00
mach-versatile Merge branches 'amba', 'devel-stable', 'fixes', 'mach-types', 'mmci', 'pci' and 'versatile' into for-linus 2012-05-21 15:15:10 +01:00
mach-vexpress
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mach-vt8500
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mach-w90x900
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mach-zynq
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mm Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-05-25 09:18:59 -07:00
net
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nwfpe
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oprofile
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plat-iop ARM: PCI: provide a default bus scan implementation 2012-05-13 17:12:17 +01:00
plat-mxc arm-soc: sweeping late_initcall cleanup 2012-05-26 13:14:01 -07:00
plat-nomadik ARM: nomadik: enable PINCTRL_NOMADIK where needed 2012-05-15 14:42:57 +02:00
plat-omap arm-soc: cleanups, part 2 2012-05-26 12:31:49 -07:00
plat-orion arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
plat-pxa
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plat-s3c24xx ARM: S3C24XX: move common clock init into common.c 2012-05-12 16:22:18 +09:00
plat-samsung arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
plat-spear arm-soc: soc-specific pinctrl changes 2012-05-22 09:39:42 -07:00
plat-versatile
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tools
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vfp Merge branch 'misc' into for-linus 2012-05-21 15:15:24 +01:00
Kconfig arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
Kconfig-nommu
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Kconfig.debug arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
Makefile arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00