From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261626AbVGUFXV (ORCPT ); Thu, 21 Jul 2005 01:23:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261631AbVGUFXV (ORCPT ); Thu, 21 Jul 2005 01:23:21 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:4298 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S261626AbVGUFWa (ORCPT ); Thu, 21 Jul 2005 01:22:30 -0400 Date: Thu, 21 Jul 2005 07:22:31 +0200 From: Pavel Machek To: Paulo Marques Cc: Hiroyuki Machida , linux-kernel@vger.kernel.org Subject: Re: [RFD] FAT robustness Message-ID: <20050721052231.GA7835@elf.ucw.cz> References: <42D9FDAC.3010109@sm.sony.co.jp> <42DB9911.9010106@grupopie.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42DB9911.9010106@grupopie.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > >[...] > > Q3 : I'm not sure JBD can be used for FAT improvements. Do you > >have any comments ? > > I might not be the best person to answer this, but this just seems so > obvious: > > If you plan to let a recently hot-unplugged device to be used in another > OS that doesn't understand your journaling extensions, your disk will be > corrupted. It will only be corrupted if you unplug it without unmounting, and it will only be corrupted as much as non-journalling disk is. Plus, you might intentionaly damage superblock signature on mount (an fix it on clean umount) so that you force user to plug it back to journalling system.... Pavel -- teflon -- maybe it is a trademark, but it should not be.