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memcg: add mem_cgroup_same_or_subtree() helper
authorMichal Hocko <mhocko@suse.cz>
Tue, 26 Jul 2011 23:08:29 +0000 (16:08 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 26 Jul 2011 23:49:43 +0000 (16:49 -0700)
commit3e92041d68b40c47faa34c7dc08fc650a6c36adc
tree29eab5bcd1bbf333cb25ed140a245645f9d7e0c4tree | snapshot (tar.gz zip)
parentd38144b7a5f8d0a5e05d549177191374c6911009commit | diff
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>
mm/memcontrol.c diff | blob | blame | history