From: Johannes Weiner <hannes@cmpxchg.org>
Date: Tue, 24 Apr 2012 18:22:33 +0000 (+0200)
Subject: mm: memcg: move pc lookup point to commit_charge()
X-Git-Tag: v3.4-rc5~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce587e65e8c669eec61df7fb1c515720302e3cc0;p=pandora-kernel.git

mm: memcg: move pc lookup point to commit_charge()

None of the callsites actually need the page_cgroup descriptor
themselves, so just pass the page and do the look up in there.

We already had two bugs (6568d4a 'mm: memcg: update the correct soft
limit tree during migration' and 'memcg: fix Bad page state after
replace_page_cache') where the passed page and pc were not referring
to the same page frame.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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