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| author | Tejun Heo <tj@kernel.org> | 2014-02-08 16:37:01 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-02-08 16:37:01 +0100 |
| commit | 3417ae1f5f59bbf36c3defbbf2a76c5ca498db2a (patch) | |
| tree | d5b03fc5ec2b71b4fde60ca6337ad45e1fd0ab45 /arch | |
| parent | cgroup: update locking in cgroup_show_options() (diff) | |
| download | linux-3417ae1f5f59bbf36c3defbbf2a76c5ca498db2a.tar.xz linux-3417ae1f5f59bbf36c3defbbf2a76c5ca498db2a.zip | |
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>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions