Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754023AbbIAAXJ (ORCPT ); Mon, 31 Aug 2015 20:23:09 -0400 Received: from mail-pa0-f50.google.com ([209.85.220.50]:33153 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752935AbbIAAXH convert rfc822-to-8bit (ORCPT ); Mon, 31 Aug 2015 20:23:07 -0400 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2104\)) Subject: Re: [GIT PULL] Ext3 removal, quota & udf fixes From: Andreas Dilger In-Reply-To: Date: Mon, 31 Aug 2015 18:23:01 -0600 Cc: Jan Kara , LKML , "linux-ext4@vger.kernel.org" , linux-fsdevel Content-Transfer-Encoding: 8BIT Message-Id: <4D95B36D-5AB6-4CF6-8BCA-03E0562F3ED3@dilger.ca> References: <20150831061920.GA2751@quack.suse.cz> To: Linus Torvalds X-Mailer: Apple Mail (2.2104) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1244 Lines: 33 On Aug 31, 2015, at 3:37 PM, Linus Torvalds wrote: > > On Sun, Aug 30, 2015 at 11:19 PM, Jan Kara wrote: >> >> The biggest change in the pull is the removal of ext3 filesystem driver >> (~28k lines removed). > > I really am not ready to just remove ext3 without a lot of good > arguments. There might well be people who this use ext3 as ext3, and > don't want to update. I want more a rationale for removal than "ext4 > can read old ext3 filesystems". The ext4 code can read and write ext3 filesystems without any compatibility issues (i.e. none of the ext4-specific features are enabled automatically) and have been doing so for all RHEL and SLES users for the past several years via the CONFIG_EXT4_USE_FOR_EXT23 option (added in commit 24b58424 in 2009). It looks like the same for Ubuntu since early 2014 also. The ext4-specific features either need to be enabled specifically via tune2fs (if possible) or at mkfs time. Cheers, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/