Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758212AbZCZP5f (ORCPT ); Thu, 26 Mar 2009 11:57:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754162AbZCZP51 (ORCPT ); Thu, 26 Mar 2009 11:57:27 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:37771 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753733AbZCZP50 (ORCPT ); Thu, 26 Mar 2009 11:57:26 -0400 Date: Thu, 26 Mar 2009 08:47:33 -0700 From: Andrew Morton To: Frans Pop Cc: mingo@elte.hu, tytso@mit.edu, jack@suse.cz, torvalds@linux-foundation.org, alan@lxorguk.ukuu.org.uk, arjan@infradead.org, a.p.zijlstra@chello.nl, npiggin@suse.de, jens.axboe@oracle.com, drees76@gmail.com, jesper@krogh.cc, linux-kernel@vger.kernel.org, oleg@redhat.com, roland@redhat.com Subject: Re: relatime: update once per day patches (was: ext3 IO latency measurements) Message-Id: <20090326084733.156c4910.akpm@linux-foundation.org> In-Reply-To: <200903261632.42439.elendil@planet.nl> References: <20090325123744.GK23439@duck.suse.cz> <20090325150041.GM32307@mit.edu> <20090325185824.GO32307@mit.edu> <20090325215137.GQ32307@mit.edu> <20090325235041.GA11024@duck.suse.cz> <20090326090630.GA9369@elte.hu> <20090326113705.GV32307@mit.edu> <20090326140312.GB14822@elte.hu> <20090326140312.GB14822@elte.hu> <20090326073013.2fa83178.akpm@linux-foundation.org> <200903261632.42439.elendil@planet.nl> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1345 Lines: 33 On Thu, 26 Mar 2009 16:32:38 +0100 Frans Pop wrote: > Andrew Morton wrote: > > On Thu, 26 Mar 2009 15:03:12 +0100 Ingo Molnar wrote: > >> Why arent the relatime patches upstream? > > > > They have been for ages. > > I assume Ingo means the patches to make relatime update atime at least > once per day to ensure better compatibility with apps that do use or rely > on access times. > These patches are already being included by several distros and, FWIW, > Debian would like to see them upstream as well because we feel . > > They were last submitted by Matthew Garrett: > http://lkml.org/lkml/2008/11/27/234 > http://lkml.org/lkml/2008/11/27/235 > > Loads of people seem to want this, but even though it's been submitted at > least twice and discussed even more often, it never gets anywhere. > Hard-wiring a 24-hour interval into the core VFS for all mounted filesystems is dumb. I (and others) pointed out that it would be better to implement this as a mount option. That suggestion was met with varying sillinesses and that is where things stand. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/