From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [RFC 0/13] extents and 48bit ext3 Date: Fri, 09 Jun 2006 21:44:04 +0100 Message-ID: <1149885844.22124.83.camel@localhost.localdomain> References: <1149816055.4066.60.camel@dyn9047017069.beaverton.ibm.com> <4488E1A4.20305@garzik.org> <20060609083523.GQ5964@schatzie.adilger.int> <44898EE3.6080903@garzik.org> <448992EB.5070405@garzik.org> <20060609181020.GB5964@schatzie.adilger.int> <4489C0B8.7050400@garzik.org> <20060609115936.2fdda6d0.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Jeff Garzik , ext2-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, torvalds@osdl.org, cmm@us.ibm.com, linux-fsdevel@vger.kernel.org, alex@clusterfs.com, adilger@clusterfs.com Return-path: To: Andrew Morton In-Reply-To: <20060609115936.2fdda6d0.akpm@osdl.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ext2-devel-bounces@lists.sourceforge.net Errors-To: ext2-devel-bounces@lists.sourceforge.net List-Id: linux-fsdevel.vger.kernel.org Ar Gwe, 2006-06-09 am 11:59 -0700, ysgrifennodd Andrew Morton: > Today's ext3 is, afaik, 100% on-disk compatible with ext3 from five years > ago, and probably with RH's 2.2-based implementation. If your files are under 2GB long, you've not used any attributes, SELinux labels or various other things maybe. In the practical real world case it isn't. I doubt many Fedora/Red Hat users have a single FS from RHEL4/FC1 onwards that is readable by 2.2 ext3 (or most 2.4 ext3) OTOH the number of complaints about this is minimal, people want to go forwards in a controlled manner not backwards. Alan