memcg: remove MEMCG_NR_FILE_MAPPED
authorSha Zhengju <handai.szj@taobao.com>
Thu, 12 Sep 2013 22:13:50 +0000 (15:13 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 12 Sep 2013 22:38:02 +0000 (15:38 -0700)
commit68b4876d996e8749142b2895bc2e251448996363
treebd21b2e160d48dc38b11869c1bef5d38100ddd98
parent1a36e59d4833de19120dc7482c61ef69e228c73c
memcg: remove MEMCG_NR_FILE_MAPPED

While accounting memcg page stat, it's not worth to use
MEMCG_NR_FILE_MAPPED as an extra layer of indirection because of the
complexity and presumed performance overhead.  We can use
MEM_CGROUP_STAT_FILE_MAPPED directly.

Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/memcontrol.h
mm/memcontrol.c
mm/rmap.c