From: Tejun Heo <tj@kernel.org>
Date: Mon, 19 Nov 2012 16:13:36 +0000 (-0800)
Subject: cgroup: lock cgroup_mutex in cgroup_init_subsys()
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~57^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=648bb56d076bde31113f09a7d24d95bc8d4155ac;p=pandora-kernel.git

cgroup: lock cgroup_mutex in cgroup_init_subsys()

Make cgroup_init_subsys() grab cgroup_mutex while initializing a
subsystem so that all helpers and callbacks are called under the
context they expect.  This isn't strictly necessary as
cgroup_init_subsys() doesn't race with anybody but will allow adding
lockdep assertions.

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

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