Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933310AbXHDTpJ (ORCPT ); Sat, 4 Aug 2007 15:45:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1765372AbXHDTo5 (ORCPT ); Sat, 4 Aug 2007 15:44:57 -0400 Received: from mail.enyo.de ([212.9.189.167]:2692 "EHLO mail.enyo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765548AbXHDTo5 (ORCPT ); Sat, 4 Aug 2007 15:44:57 -0400 X-Greylist: delayed 1668 seconds by postgrey-1.27 at vger.kernel.org; Sat, 04 Aug 2007 15:44:56 EDT From: Florian Weimer To: Andrew Morton Cc: Linus Torvalds , Ingo Molnar , Peter Zijlstra , linux-mm@kvack.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, neilb@suse.de, dgc@sgi.com, tomoki.sekiyama.qu@hitachi.com, nikita@clusterfs.com, trond.myklebust@fys.uio.no, yingchao.zhou@gmail.com, richard@rsk.demon.co.uk Subject: Re: [PATCH 00/23] per device dirty throttling -v8 References: <20070803123712.987126000@chello.nl> <20070804063217.GA25069@elte.hu> <20070804070737.GA940@elte.hu> <20070804103347.GA1956@elte.hu> <20070804094119.81d8e533.akpm@linux-foundation.org> Date: Sat, 04 Aug 2007 21:16:35 +0200 In-Reply-To: <20070804094119.81d8e533.akpm@linux-foundation.org> (Andrew Morton's message of "Sat, 4 Aug 2007 09:41:19 -0700") Message-ID: <87wswbjejw.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 698 Lines: 16 * Andrew Morton: > The easy preventive is to mount with data=writeback. Maybe that should > have been the default. The documentation I could find suggests that this may lead to a security weakness (old data in blocks of a file that was grown just before the crash leaks to a different user). XFS overwrites that data with zeros upon reboot, which tends to irritate users when it happens. >From this point of view, data=ordered doesn't seem too bad. - 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/