Commit d0ec4230 authored by Tejun Heo's avatar Tejun Heo

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: default avatarTejun Heo <tj@kernel.org>
Acked-by: default avatarLi Zefan <lizefan@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
parent 6abc8ca1
...@@ -145,6 +145,7 @@ static const char *cgroup_subsys_name[] = { ...@@ -145,6 +145,7 @@ static const char *cgroup_subsys_name[] = {
* part of that cgroup. * part of that cgroup.
*/ */
struct cgroup_root cgrp_dfl_root; struct cgroup_root cgrp_dfl_root;
EXPORT_SYMBOL_GPL(cgrp_dfl_root);
/* /*
* The default hierarchy always exists but is hidden until mounted for the * The default hierarchy always exists but is hidden until mounted for the
......
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