cgroup: export cgrp_dfl_root
authorTejun Heo <tj@kernel.org>
Wed, 5 Aug 2015 20:03:19 +0000 (16:03 -0400)
committerTejun Heo <tj@kernel.org>
Wed, 5 Aug 2015 20:03:19 +0000 (16:03 -0400)
commitd0ec4230a077521a984ac604acbd8c15cc12a664
tree83e773cd268eabc429dea1f3d88a87ac726f8057
parent6abc8ca19df0078de17dc38340db3002ed489ce7
cgroup: export cgrp_dfl_root

While cgroup subsystems can't be modules, blkcg supports dynamically
loadable policies which interact with cgroup core.  Export
cgrp_dfl_root so that cgroup_on_dfl() can be used in those modules.

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