From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 29 Oct 2008 21:00:51 +0000 (-0700)
Subject: freezer_cg: fix improper BUG_ON() causing oops
X-Git-Tag: v2.6.28-rc3~81
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ccb97437bcc818d0ba6067513475f6ee8177a15;p=pandora-kernel.git

freezer_cg: fix improper BUG_ON() causing oops

The BUG_ON() should be protected by freezer->lock, otherwise it can be
triggered easily when a task has been unfreezed but the corresponding
cgroup hasn't been changed to FROZEN state.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cedric Le Goater <clg@fr.ibm.com>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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