mm/oom_kill.c: fix task_will_free_mem() comment
Attempt to demystify the task_will_free_mem() loop. Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -803,8 +803,9 @@ static bool task_will_free_mem(struct task_struct *task)
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return true;
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/*
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* This is really pessimistic but we do not have any reliable way
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* to check that external processes share with our mm
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* Make sure that all tasks which share the mm with the given tasks
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* are dying as well to make sure that a) nobody pins its mm and
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* b) the task is also reapable by the oom reaper.
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*/
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rcu_read_lock();
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for_each_process(p) {
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