From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761124Ab2D0SU0 (ORCPT ); Fri, 27 Apr 2012 14:20:26 -0400 Received: from mail-pz0-f51.google.com ([209.85.210.51]:38171 "EHLO mail-pz0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760796Ab2D0SUX (ORCPT ); Fri, 27 Apr 2012 14:20:23 -0400 Date: Fri, 27 Apr 2012 11:20:18 -0700 From: Tejun Heo To: KAMEZAWA Hiroyuki Cc: Linux Kernel , "linux-mm@kvack.org" , "cgroups@vger.kernel.org" , Michal Hocko , Johannes Weiner , Frederic Weisbecker , Glauber Costa , Han Ying , "Aneesh Kumar K.V" , Andrew Morton , kamezawa.hiroyuki@gmail.com Subject: Re: [RFC][PATCH 4/7 v2] memcg: use res_counter_uncharge_until in move_parent Message-ID: <20120427182018.GI26595@google.com> References: <4F9A327A.6050409@jp.fujitsu.com> <4F9A34B2.8080103@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4F9A34B2.8080103@jp.fujitsu.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 27, 2012 at 02:54:58PM +0900, KAMEZAWA Hiroyuki wrote: > By using res_counter_uncharge_until(), we can avoid > unnecessary charging. > > Signed-off-by: KAMEZAWA Hiroyuki > --- > mm/memcontrol.c | 63 ++++++++++++++++++++++++++++++++++++------------------ > 1 files changed, 42 insertions(+), 21 deletions(-) > > diff --git a/mm/memcontrol.c b/mm/memcontrol.c > index 613bb15..ed53d64 100644 > --- a/mm/memcontrol.c > +++ b/mm/memcontrol.c > @@ -2420,6 +2420,24 @@ static void __mem_cgroup_cancel_charge(struct mem_cgroup *memcg, > } > > /* > + * Cancel chages in this cgroup....doesn't propagates to parent cgroup. ^typo ^ unnecessary s -- tejun