Am 24.03.2012 11:31, schrieb Anton Vorontsov: > kill_off_processes() might miss a valid process, this is because > checking for process->mm is not enough. Process' main thread may > exit or detach its mm via use_mm(), but other threads may still > have a valid mm. > > To catch this we use find_lock_task_mm(), which walks up all > threads and returns an appropriate task (with task lock held). > > Suggested-by: Oleg Nesterov <oleg@xxxxxxxxxx> > Signed-off-by: Anton Vorontsov <anton.vorontsov@xxxxxxxxxx> Acked-by: Richard Weinberger <richard@xxxxxx> Thanks, //richard
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