From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753508Ab1EIQTk (ORCPT ); Mon, 9 May 2011 12:19:40 -0400 Received: from mx1.redhat.com ([209.132.183.28]:65490 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752610Ab1EIQTi (ORCPT ); Mon, 9 May 2011 12:19:38 -0400 Message-ID: <4DC813CB.2040103@redhat.com> Date: Mon, 09 May 2011 12:18:19 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/3.1.9-0.38.b3pre.fc13 Lightning/1.0b3pre Thunderbird/3.1.9 MIME-Version: 1.0 To: Jan Kara CC: Wu Fengguang , Andrew Morton , LKML , Dave Chinner , Mel Gorman , Christoph Hellwig , linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 06/17] writeback: sync expired inodes first in background writeback References: <20110506030821.523093711@intel.com> <20110506031612.539339712@intel.com> <20110509160827.GS4122@quack.suse.cz> In-Reply-To: <20110509160827.GS4122@quack.suse.cz> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/09/2011 12:08 PM, Jan Kara wrote: > The age of pages in LRU is not necessarily related with the > i_dirtied_when time stamp so I'm not sure how much this will help after all Not necessarily, but given that the inactive file list is a FIFO list, I expect there will be decent correlation. > but it makes some sense from the data integrity point of view at least. You > can add: > Acked-by: Jan Kara Good point on the data integrity. -- All rights reversed