From: Eric Sandeen Subject: Re: [PATCH] ext4: Remove "extents" mount option Date: Wed, 07 Jan 2009 09:47:40 -0600 Message-ID: <4964CE9C.2050505@redhat.com> References: <1231267777-18831-1-git-send-email-tytso@mit.edu> <20090107053250.GA9617@skywalker> <20090107144502.GC17110@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: "Aneesh Kumar K.V" , Ext4 Developers List To: Theodore Tso Return-path: Received: from mx2.redhat.com ([66.187.237.31]:33022 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755693AbZAGPsI (ORCPT ); Wed, 7 Jan 2009 10:48:08 -0500 In-Reply-To: <20090107144502.GC17110@mit.edu> Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Tso wrote: > What's the scenario you're thinking about here? When would it be > useful for users to be able to downgrade extent-based files to > indirect block files by copying files around? > > - Ted We have said in the past that this is a path back out of ext4 if you regret your decision to migrate. And if you have simply tune2fs -O extent'd your old ext3 fs, then the above *is* a (cumbersome) way back out in most cases I think... -Eric