From: Johannes Weiner <hannes@cmpxchg.org>
Date: Mon, 7 Apr 2014 22:37:45 +0000 (-0700)
Subject: memcg: sanitize __mem_cgroup_try_charge() call protocol
X-Git-Tag: v3.15-rc1~57^2~112
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d1fdc48938cd51a3964778d78f27cb26c8eb55d;p=pandora-kernel.git

memcg: sanitize __mem_cgroup_try_charge() call protocol

Some callsites pass a memcg directly, some callsites pass an mm that
then has to be translated to a memcg.  This makes for a terrible
function interface.

Just push the mm-to-memcg translation into the respective callsites and
always pass a memcg to mem_cgroup_try_charge().

[mhocko@suse.cz: add charge mm helper]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
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>
---

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