tree fcda8e91609e1a74f629c1a7b0e95c3e76cab75e
parent 4e1c2b284461fd8aa8d7b295a1e911fc4390755b
author Johannes Weiner <hannes@cmpxchg.org> 1335291753 +0200
committer Linus Torvalds <torvalds@linux-foundation.org> 1335414155 -0700

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>