| commit | 3417ae1f5f59bbf36c3defbbf2a76c5ca498db2a | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Sat Feb 08 10:37:01 2014 -0500 |
| committer | Tejun Heo <tj@kernel.org> | Sat Feb 08 10:37:01 2014 -0500 |
| tree | d5b03fc5ec2b71b4fde60ca6337ad45e1fd0ab45 | |
| parent | 69e943b7d3c2dcca1087e03e556ac6cb0d4433b4 [diff] |
cgroup: remove cgroup_root_mutex cgroup_root_mutex was added to avoid deadlock involving namespace_sem via cgroup_show_options(). It added a lot of overhead for the small purpose of it and, because it's nested under cgroup_mutex, it has very limited usefulness. The previous patch made cgroup_show_options() not use cgroup_root_mutex, so nobody needs it anymore. Remove it. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>