tree 0229507c7ffcb1ea79ccd6989e42f2784bb5bbf9
parent 283cb41f426b723a0255702b761b0fc5d1b53a81
author Vladimir Davydov <vdavydov@parallels.com> 1424356486 +0300
committer Tejun Heo <tj@kernel.org> 1425316261 -0500

cgroup: call cgroup_subsys->bind on cgroup subsys initialization

Currently, we call cgroup_subsys->bind only on unmount, remount, and
when creating a new root on mount. Since the default hierarchy root is
created in cgroup_init, we will not call cgroup_subsys->bind if the
default hierarchy is freshly mounted. As a result, some controllers will
behave incorrectly (most notably, the "memory" controller will not
enable hierarchy support). Fix this by calling cgroup_subsys->bind right
after initializing a cgroup subsystem.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Tejun Heo <tj@kernel.org>