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Date: Thu, 26 Mar 2009 13:32:38 -0400
From: Bill Nottingham <notting@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Theodore Tso <tytso@mit.edu>, Ingo Molnar <mingo@elte.hu>,
       Jan Kara <jack@suse.cz>, Andrew Morton <akpm@linux-foundation.org>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Arjan van de Ven <arjan@infradead.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>, Nick Piggin <npiggin@suse.de>,
       Jens Axboe <jens.axboe@oracle.com>, David Rees <drees76@gmail.com>,
       Jesper Krogh <jesper@krogh.cc>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Oleg Nesterov <oleg@redhat.com>, Roland McGrath <roland@redhat.com>
Subject: Re: ext3 IO latency measurements (was: Linux 2.6.29)
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References: <20090325185824.GO32307@mit.edu> <alpine.LFD.2.00.0903251341050.3032@localhost.localdomain> <20090325215137.GQ32307@mit.edu> <alpine.LFD.2.00.0903251613300.3032@localhost.localdomain> <20090325235041.GA11024@duck.suse.cz> <20090326090630.GA9369@elte.hu> <20090326113705.GV32307@mit.edu> <20090326140312.GB14822@elte.hu> <20090326144707.GA6239@mit.edu> <alpine.LFD.2.00.0903260914440.3032@localhost.localdomain>
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Linus Torvalds (torvalds@linux-foundation.org) said: 
> And quite frankly, even if you then _manually_ put 'relatime' in 
> /etc/fstab, the default Fedora install will totally ignore it. Why? 
> Because it mounts the root partition while using initrd, and totally 
> ignores /etc/fstab.

It should honor /etc/fstab changes, if the initramfs is rebuilt
after the change is made. If it doesn't, that's a bug.

Bill