From: Li Zefan <lizefan@huawei.com>
Date: Tue, 12 Mar 2013 02:28:39 +0000 (+0800)
Subject: cpuset: fix RCU lockdep splat in cpuset_print_task_mems_allowed()
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~124^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cfb5966bef85412dab9c93553db10b3e99ac32e8;p=pandora-kernel.git

cpuset: fix RCU lockdep splat in cpuset_print_task_mems_allowed()

Sasha reported a lockdep warning when OOM was triggered. The reason
is cgroup_name() should be called with rcu_read_lock() held.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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