memcg: optimize per-cpu statistics
authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Sun, 19 Oct 2008 03:28:10 +0000 (20:28 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 20 Oct 2008 15:52:39 +0000 (08:52 -0700)
commitaddb9efebb2ee2202d324e75b593b39868528f68
tree0d0a6b3c4ce3e3b668adab9f463957e506e9b733
parent5b4e655e948d8b6e9b0d001616d4c9d7e7ffe924
memcg: optimize per-cpu statistics

Some obvious optimization to memcg.

I found mem_cgroup_charge_statistics() is a little big (in object) and
does unnecessary address calclation.  This patch is for optimization to
reduce the size of this function.

And res_counter_charge() is 'likely' to succeed.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memcontrol.c