commit 7ba3485947ee7bc89a17f86250fe9b692a615dff
author Hugh Dickins <hugh@veritas.com> Fri Jan 05 16:37:03 2007 -0800
committer Linus Torvalds <torvalds@woody.osdl.org> Fri Jan 05 23:55:29 2007 -0800
tree 77fce78136f040d9382f1b27687478bbcbec051a
parent c8af57eb76fbd70c7f5b421b065fd55d096e2bff

[PATCH] fix OOM killing of swapoff

These days, if you swapoff when there isn't enough memory, OOM killer gives
"BUG: scheduling while atomic" and the machine hangs: badness() needs to do
its PF_SWAPOFF return after the task_unlock (tasklist_lock is also held
here, so p isn't going to be freed: PF_SWAPOFF might get turned off at any
moment, but that doesn't really matter).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>