Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759324AbZCZWfU (ORCPT ); Thu, 26 Mar 2009 18:35:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754662AbZCZWfG (ORCPT ); Thu, 26 Mar 2009 18:35:06 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:54047 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752414AbZCZWfF (ORCPT ); Thu, 26 Mar 2009 18:35:05 -0400 Date: Thu, 26 Mar 2009 15:24:55 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Bill Nottingham cc: Theodore Tso , Ingo Molnar , Jan Kara , Andrew Morton , Alan Cox , Arjan van de Ven , Peter Zijlstra , Nick Piggin , Jens Axboe , David Rees , Jesper Krogh , Linux Kernel Mailing List , Oleg Nesterov , Roland McGrath Subject: Re: ext3 IO latency measurements (was: Linux 2.6.29) In-Reply-To: <20090326182320.GA9341@nostromo.devel.redhat.com> Message-ID: References: <20090325215137.GQ32307@mit.edu> <20090325235041.GA11024@duck.suse.cz> <20090326090630.GA9369@elte.hu> <20090326113705.GV32307@mit.edu> <20090326140312.GB14822@elte.hu> <20090326144707.GA6239@mit.edu> <20090326173237.GB8465@nostromo.devel.redhat.com> <20090326182320.GA9341@nostromo.devel.redhat.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 23 On Thu, 26 Mar 2009, Bill Nottingham wrote: > > Well, it's got to find the root fs options somewhere. Pulling them > from the modified /etc/fstab in the root fs before you mount it, well... Umm. The _only_ sane thng to do is to mount the root read-only from initramfs, and then re-mount it with the options in the /etc/fstab later when you re-mount it read-write _anyway_ (which may possibly be immediately, of course). Anybody who thinks you should re-write initramfs for something like this really hasn't spent a single second thinking about it. Linus -- 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/