From: Tejun Heo <tj@kernel.org>
Date: Sun, 14 Apr 2013 18:36:57 +0000 (-0700)
Subject: cgroup: drop hierarchy_id_lock
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~43^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54e7b4eb15fc4354d5ada5469e3db4a220ddb3ed;p=pandora-kernel.git

cgroup: drop hierarchy_id_lock

Now that hierarchy_id alloc / free are protected by the cgroup
mutexes, there's no need for this separate lock.  Drop it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
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