tree 22fd4f923fc2cc1ed1d7c4aa94039452ce6123e5
parent 03583f1a631c0511dfd2f16e716d5b40f675de5a
author Johannes Weiner <hannes@cmpxchg.org> 1396910263 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1396913756 -0700

memcg: get_mem_cgroup_from_mm()

Instead of returning NULL from try_get_mem_cgroup_from_mm() when the mm
owner is exiting, just return root_mem_cgroup.  This makes sense for all
callsites and gets rid of some of them having to fallback manually.

[fengguang.wu@intel.com: fix warnings]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>