From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264144AbTLUWSU (ORCPT ); Sun, 21 Dec 2003 17:18:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264145AbTLUWSU (ORCPT ); Sun, 21 Dec 2003 17:18:20 -0500 Received: from websrv.werbeagentur-aufwind.de ([213.239.197.241]:44434 "EHLO mail.werbeagentur-aufwind.de") by vger.kernel.org with ESMTP id S264144AbTLUWST (ORCPT ); Sun, 21 Dec 2003 17:18:19 -0500 Subject: Re: [PATCH] loop.c patches, take two From: Christophe Saout To: Mika =?ISO-8859-1?Q?Penttil=E4?= Cc: Ben Slusky , linux-kernel@vger.kernel.org, Andrew Morton , jariruusu@users.sourceforge.net In-Reply-To: <3FE6076B.3090908@kolumbus.fi> References: <20031030134137.GD12147@fukurou.paranoiacs.org> <3FA15506.B9B76A5D@users.sourceforge.net> <20031030133000.6a04febf.akpm@osdl.org> <20031031005246.GE12147@fukurou.paranoiacs.org> <20031031015500.44a94f88.akpm@osdl.org> <20031101002650.GA7397@fukurou.paranoiacs.org> <20031102204624.GA5740@fukurou.paranoiacs.org> <20031221195534.GA4721@fukurou.paranoiacs.org> <3FE6076B.3090908@kolumbus.fi> Content-Type: text/plain; charset=ISO-8859-15 Message-Id: <1072044101.18969.3.camel@leto.cs.pocnet.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Sun, 21 Dec 2003 23:01:41 +0100 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Am So, den 21.12.2003 schrieb Mika Penttilä um 21:49: > Yet another Big Loop Patch... :) > > It's not obvious which parts are bug fixes, and which performance > improvements. What exactly breaks loops on journalling filesystems, and > how do you solve it? What about dropping block device backed support for the loop driver altogether? We now have a nice device mapper in the 2.6 kernel. I don't like the schizophrenic way the loop driver handles these things (and you'll always run into similar trouble when trying to fix or resolve this issue). I know this is kind of radical... but everyone loves radical ideas. ;) There also a new device mapper target dm-crypt I've written some time ago, which does basically the same cryptoloop is doing (or tries to do, whatever ;)) and which seems to work quite well. I've never had any feedback from the kernel maintainers about including it into the main kernel. Andrew? -- Christophe Saout Please avoid sending me Word or PowerPoint attachments. See http://www.fsf.org/philosophy/no-word-attachments.html