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1198c8b9af
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 the issue fixed, so let's use it. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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.. | ||
boards | ||
boot | ||
cchips | ||
configs | ||
drivers | ||
include | ||
kernel | ||
lib | ||
lib64 | ||
math-emu | ||
mm | ||
oprofile | ||
tools | ||
Kconfig | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Makefile |