memcg: fix numa scan information update to be triggered by memory event
authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Fri, 8 Jul 2011 22:39:43 +0000 (15:39 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 9 Jul 2011 04:14:44 +0000 (21:14 -0700)
commit453a9bf347f1e22a5bb3605ced43b2366921221d
treedfe355892b8ace86f74f6b8a34ad86da159f697d
parent4d0c066d29f030d47d19678f8008933e67dd3b72
memcg: fix numa scan information update to be triggered by memory event

commit 889976dbcb12 ("memcg: reclaim memory from nodes in round-robin
order") adds an numa node round-robin for memcg.  But the information is
updated once per 10sec.

This patch changes the update trigger from jiffies to memcg's event count.
 After this patch, numa scan information will be updated when we see 1024
events of pagein/pageout under a memcg.

[akpm@linux-foundation.org: attempt to repair code layout]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Ying Han <yinghan@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
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