From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755755AbZCLLXv (ORCPT ); Thu, 12 Mar 2009 07:23:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753642AbZCLLXm (ORCPT ); Thu, 12 Mar 2009 07:23:42 -0400 Received: from wf-out-1314.google.com ([209.85.200.169]:37676 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752632AbZCLLXl (ORCPT ); Thu, 12 Mar 2009 07:23:41 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=RPIYHJz5IvFhruGbx5595QxiG7lQTKwKysfuZUOAJ1x74FXD0QAed4+rVs8owCmbdM v1FrXyxiOkjzM2+4MGBZ00c8wjo9qLNsGL4M67IjIPD8lqsjPKVjf0rrartODiGjfcb3 irrupQ4zDTLyQee1McpJvymtnyaViTj3eoq/0= MIME-Version: 1.0 In-Reply-To: <20090312094529.GA4335@balbir.in.ibm.com> References: <20090312041414.GG23583@balbir.in.ibm.com> <20090312131739.296785da.kamezawa.hiroyu@jp.fujitsu.com> <20090312164204.43B7.A69D9226@jp.fujitsu.com> <20090312094529.GA4335@balbir.in.ibm.com> Date: Thu, 12 Mar 2009 20:23:39 +0900 X-Google-Sender-Auth: f9d144a92d0d8235 Message-ID: <2f11576a0903120423i56958bbbuc88cdd8cec5c9c17@mail.gmail.com> Subject: Re: [BUGFIX][PATCH 1/5] memcg use correct scan number at reclaim From: KOSAKI Motohiro To: balbir@linux.vnet.ibm.com Cc: KAMEZAWA Hiroyuki , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "nishimura@mxp.nes.nec.co.jp" , "akpm@linux-foundation.org" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> > IIUC, # of pages to be scanned is just determined once, here. >> >> In this case, lockless is right behavior. >> lockless is valuable than precise ZSTAT. end user can't observe this race. >> > > Lockless works fine provided the data is correctly aligned. I need to > check this out more thoroghly. Thanks a lot :)