commit 3e92041d68b40c47faa34c7dc08fc650a6c36adc
author Michal Hocko <mhocko@suse.cz> Tue Jul 26 16:08:29 2011 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Tue Jul 26 16:49:43 2011 -0700
tree 29eab5bcd1bbf333cb25ed140a245645f9d7e0c4
parent d38144b7a5f8d0a5e05d549177191374c6911009

memcg: add mem_cgroup_same_or_subtree() helper

We are checking whether a given two groups are same or at least in the
same subtree of a hierarchy at several places.  Let's make a helper for
it to make code easier to read.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>