cgroup: grab cgroup_mutex in drop_parsed_module_refcounts()
authorTejun Heo <tj@kernel.org>
Wed, 26 Jun 2013 01:05:21 +0000 (18:05 -0700)
committerTejun Heo <tj@kernel.org>
Wed, 26 Jun 2013 17:40:10 +0000 (10:40 -0700)
commiteb178d063324d9c30f673db3877b892a48ade21e
treebeb6a51e60b40c07f18cac6d1938aa8730416983
parent1672d040709b789671c0502e7aac9d632c2f9175
cgroup: grab cgroup_mutex in drop_parsed_module_refcounts()

This isn't strictly necessary as all subsystems specified in
@subsys_mask are guaranteed to be pinned; however, it does spuriously
trigger lockdep warning.  Let's grab cgroup_mutex around it.

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