]> git.baikalelectronics.ru Git - kernel.git/commit
cgroup: don't print subsystems for the default hierarchy
authorTejun Heo <tj@kernel.org>
Tue, 18 Aug 2015 20:58:16 +0000 (13:58 -0700)
committerTejun Heo <tj@kernel.org>
Tue, 18 Aug 2015 20:58:16 +0000 (13:58 -0700)
commit1ddde536c5c3607172e9487bdf06e7617e7ef5bf
treea71076ebe528096084a1290d823c0251691e9172
parent85af518f724d797e4122854d2c4773c77e133d48
cgroup: don't print subsystems for the default hierarchy

It doesn't make sense to print subsystems on mount option or
/proc/PID/cgroup for the default hierarchy.

* cgroup.controllers file at the root of the default hierarchy lists
  the currently attached controllers.

* The default hierarchy is catch-all for unmounted subsystems.

* The default hierarchy doesn't accept any mount options.

Suppress subsystem printing on mount options and /proc/PID/cgroup for
the default hierarchy.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: cgroups@vger.kernel.org
kernel/cgroup.c