| commit | a9746d8da786bc79b3b4ae1baa0fbbc4b795c1b7 | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Tue May 13 12:19:22 2014 -0400 |
| committer | Tejun Heo <tj@kernel.org> | Tue May 13 12:19:22 2014 -0400 |
| tree | 4bc006ff8f7df66d8df51f51cd0e285797712ae9 | |
| parent | cfc79d5bec04cdf26cd207d3e73d8bd59fd780a8 [diff] |
cgroup: factor out cgroup_kn_lock_live() and cgroup_kn_unlock() cgroup_mkdir(), cgroup_rmdir() and cgroup_subtree_control_write() share the logic to break active protection so that they can grab cgroup_tree_mutex which nests above active protection and/or remove self. Factor out this logic into cgroup_kn_lock_live() and cgroup_kn_unlock(). This patch doesn't introduce any functional changes. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>