From 23958e729e7029678e746bf8f4094c8863a79c3d Mon Sep 17 00:00:00 2001
From: Greg KH <gregkh@linuxfoundation.org>
Date: Fri, 3 May 2013 16:26:59 -0700
Subject: [PATCH] cgroup.h: remove some functions that are now gone

cgroup_lock() and cgroup_unlock() are now no longer exported, so fix
cgroup.h to not declare them if CONFIG_CGROUPS is not enabled.

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