tree 335439bc9d13da86a7b6955907a92ddab03ceb57
parent 305f3c8b20ba1ca94829329acdbf22e689304dba
author Li Zefan <lizf@cn.fujitsu.com> 1324967155 +0800
committer Tejun Heo <tj@kernel.org> 1325786386 -0800

cgroup: fix to allow mounting a hierarchy by name

If we mount a hierarchy with a specified name, the name is unique,
and we can use it to mount the hierarchy without specifying its
set of subsystem names. This feature is documented is
Documentation/cgroups/cgroups.txt section 2.3

Here's an example:

	# mount -t cgroup -o cpuset,name=myhier xxx /cgroup1
	# mount -t cgroup -o name=myhier xxx /cgroup2

But it was broken by commit 32a8cf235e2f192eb002755076994525cdbaa35a
(cgroup: make the mount options parsing more accurate)

This fixes the regression.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org