From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264568AbTLVX3d (ORCPT ); Mon, 22 Dec 2003 18:29:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264575AbTLVX3d (ORCPT ); Mon, 22 Dec 2003 18:29:33 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:45218 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S264568AbTLVX3a (ORCPT ); Mon, 22 Dec 2003 18:29:30 -0500 Message-ID: <3FE77E49.4010303@pobox.com> Date: Mon, 22 Dec 2003 18:29:13 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Mike Fedyk CC: Christophe Saout , Andrew Morton , linux-kernel@vger.kernel.org, Fruhwirth Clemens , Joe Thornber Subject: Re: [PATCH 2/2][RFC] Add dm-crypt target References: <1072129379.5570.73.camel@leto.cs.pocnet.net> <20031222215236.GB13103@leto.cs.pocnet.net> <3FE7794D.7000908@pobox.com> <20031222232433.GT6438@matchmail.com> In-Reply-To: <20031222232433.GT6438@matchmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Mike Fedyk wrote: > On Mon, Dec 22, 2003 at 06:07:57PM -0500, Jeff Garzik wrote: > >>would prefer to emphasize their differences. A replacement for >>cryptoloop means you must support cryptoloop's on-disk format. > > > Do you dislike the cryptoloop format? > > What if you wanted to take a disk that was used with dm-crypt, and copy it > to a file on a larger filesystem? Would the data now be inaccessable > because it's not in a format mountable by a loop driver? Remember we are talking about two -totally different- drivers here. I can't take my reiserfs data, copy it to a file on a larger filesystem, and then mount it with ext3. And that's a good thing. dm-crypt should not be constrained by cryptoloop, and vice versa. Jeff