From: Eric Sandeen Subject: Re: [PATCH 1/2] ext2: speed up file creates by optimizing rec_len functions Date: Fri, 10 Dec 2010 18:24:56 -0600 Message-ID: <4D02C4D8.3040704@redhat.com> References: <4CFE7347.8030807@redhat.com> <4CFE7409.9090609@redhat.com> <20101207130708.71c894e9.akpm@linux-foundation.org> <4CFEA5AF.2000702@redhat.com> <20101207133308.eb2144da.akpm@linux-foundation.org> <63DB7A38-7D0F-406E-8ACD-9CE5DB977DD9@dilger.ca> <4CFFF394.1020303@redhat.com> <4D002B91.7020409@redhat.com> <20101210175549.GC3059@thunk.org> <68AB6BC2-4F3F-46E6-AF17-E26FCB03EE9D@dilger.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "Ted Ts'o" , Ric Wheeler , Andrew Morton , ext4 development , Jan Kara To: Andreas Dilger Return-path: Received: from mx1.redhat.com ([209.132.183.28]:18171 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757334Ab0LKAZG (ORCPT ); Fri, 10 Dec 2010 19:25:06 -0500 In-Reply-To: <68AB6BC2-4F3F-46E6-AF17-E26FCB03EE9D@dilger.ca> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 12/10/10 5:40 PM, Andreas Dilger wrote: > On 2010-12-10, at 10:55, Ted Ts'o wrote: >> On Wed, Dec 08, 2010 at 08:06:25PM -0500, Ric Wheeler wrote: >>> If we could get rid of ext2 (and eventually ext3), it would actually >>> help reduce the testing matrix and possibly let us invest even more >>> in testing ext4. Having to maintain three very similar code bases >>> and test them all for correctness and performance is a real pain :) >> >> A distribution can do that at any time, just by unconfiguring >> CONFIG_EXT2 and/or CONFIG_EXT3 and configuring >> CONFIG_EXT4_USE_FOR_EXT23. :-) > > That doesn't get rid of the maintenance efforts, however. There are a > constant stream of "patch for ext[234] needs to be ported to ext[342]". Agreed.... our 3-way fork is getting cumbersome. > Cheers, Andreas