Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759129AbZDCGbV (ORCPT ); Fri, 3 Apr 2009 02:31:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753360AbZDCGbH (ORCPT ); Fri, 3 Apr 2009 02:31:07 -0400 Received: from thunk.org ([69.25.196.29]:60760 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751590AbZDCGbG (ORCPT ); Fri, 3 Apr 2009 02:31:06 -0400 Date: Fri, 3 Apr 2009 02:30:59 -0400 From: Theodore Tso To: "Trenton D. Adams" Cc: David Rees , Christian Kujau , Artem Bityutskiy , Linux Kernel Mailing List Subject: Re: EXT4-ish "fixes" in UBIFS Message-ID: <20090403063059.GO9870@mit.edu> Mail-Followup-To: Theodore Tso , "Trenton D. Adams" , David Rees , Christian Kujau , Artem Bityutskiy , Linux Kernel Mailing List References: <9b1675090904021724t2fb0a671uc10d8e7bcba0bc5c@mail.gmail.com> <9b1675090904021728y35776377u327f2266d06e2f29@mail.gmail.com> <72dbd3150904021855v440f46a7oc21a7ed28fbfcb13@mail.gmail.com> <9b1675090904021905o7e0cec64lfe4a5372777908b6@mail.gmail.com> <72dbd3150904021919g5405ee40p100eacb085024941@mail.gmail.com> <9b1675090904021928k5a9948f9l8d93b6cbd5531720@mail.gmail.com> <72dbd3150904021958q7795dc62keb54d1fbfaa6abc7@mail.gmail.com> <20090403050246.GM9870@mit.edu> <9b1675090904022215u612a3c06g98c3dcf3e74571a2@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9b1675090904022215u612a3c06g98c3dcf3e74571a2@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@mit.edu X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 784 Lines: 24 On Thu, Apr 02, 2009 at 11:15:29PM -0600, Trenton D. Adams wrote: > > tdamac ~ # mount -t ext3 -o data=writeback,remount,rw /dev/s/sys / > mount: / not mounted already, or bad option > > Does it have to be done on initial mount? Yes, which means you have to use the rootflags boot command-line option. It's a pain that we can't switch data= modes on the fly. I believe the problematic transiations are between data=journal and data=!journal. Transitions between data=ordered and data=writeback should be easy to add. - Ted -- 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/