From 47cfcd0922454e49f4923b1e2d31a5bf199237c3 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Sun, 7 Apr 2013 09:29:51 -0700
Subject: [PATCH] cgroup: kill cgroup_[un]lock()

Now that locking interface is unexported, there's no reason to keep
around these thin wrappers.  Kill them and use mutex operations
directly.

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