Commit 0ae26f1b authored Jun 23, 2006 by Andrew Morton Committed by Linus Torvalds Jun 23, 2006

[PATCH] mmput() might sleep



exit_aio() and exit_mmap() can sleep.  But it's easy to accidentally call
mmput() from inside locks.

Cc: Dave Peterson <dsp@llnl.gov>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 32797f97

kernel/fork.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -368,6 +368,8 @@ void fastcall __mmdrop(struct mm_struct *mm)
		*/
		void mmput(struct mm_struct *mm)
		{
		might_sleep();

		if (atomic_dec_and_test(&mm->mm_users)) {
		exit_aio(mm);
		exit_mmap(mm);