From f88ccad5886d5a864b8b0d48c666ee9998dec53f Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Mon, 9 Aug 2010 17:19:36 -0700
Subject: [PATCH] oom: oom_kill_process() needs to check that p is unkillable

When oom_kill_allocating_task is enabled, an argument task of
oom_kill_process is not selected by select_bad_process(), It's just
out_of_memory() caller task.  It mean the task can be unkillable.  check
it first.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
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