cpuset: cleanup guarantee_online_{cpus|mems}()

- We never pass a NULL @cs to these functions.
- The top cpuset always has some online cpus/mems.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Li Zefan 2013-06-05 17:15:23 +08:00 • committed by Tejun Heo
commit 40df2deb50