| commit | ae37feb2542fde928bc4143a535ed316ac40ad29 | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Wed Jan 29 16:42:03 2014 -0500 |
| committer | Tejun Heo <tj@kernel.org> | Wed Jan 29 16:42:03 2014 -0500 |
| tree | 131b91ac521d10c1d574850e749da3bd75032d4b | |
| parent | adcde8fbf89625cf57a30c0b712b907f00892c79 [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>