cgroup: implement cgroup_rightmost_descendant()
authorTejun Heo <tj@kernel.org>
Mon, 7 Jan 2013 16:49:33 +0000 (08:49 -0800)
committerTejun Heo <tj@kernel.org>
Mon, 7 Jan 2013 16:50:28 +0000 (08:50 -0800)
commit12a9d2fef1d35770d3cdc2cd1faabb83c45bc0fa
treea7c50e81a638a156ce8d4f41dcab273397e6e474
parentd5b1fe68baa7213f198e5be8cd1a1037258ab2c8
cgroup: implement cgroup_rightmost_descendant()

Implement cgroup_rightmost_descendant() which returns the right most
descendant of the specified cgroup.  This can be used to skip the
cgroup's subtree while iterating with
cgroup_for_each_descendant_pre().

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Li Zefan <lizefan@huawei.com>
include/linux/cgroup.h
kernel/cgroup.c