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Message-ID: <45864380.1010201@yahoo.com.au>
Date: Mon, 18 Dec 2006 18:30:08 +1100
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: Linus Torvalds <torvalds@osdl.org>
CC: Andrew Morton <akpm@osdl.org>, andrei.popa@i-neo.ro,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Hugh Dickins <hugh@veritas.com>, Florian Weimer <fw@deneb.enyo.de>,
       Marc Haber <mh+linux-kernel@zugschlus.de>,
       Martin Michlmayr <tbm@cyrius.com>
Subject: Re: 2.6.19 file content corruption on ext3
References: <1166314399.7018.6.camel@localhost> <20061217040620.91dac272.akpm@osdl.org> <1166362772.8593.2.camel@localhost> <20061217154026.219b294f.akpm@osdl.org> <Pine.LNX.4.64.0612171716510.3479@woody.osdl.org> <Pine.LNX.4.64.0612171725110.3479@woody.osdl.org> <Pine.LNX.4.64.0612171744360.3479@woody.osdl.org> <45861E68.3060403@yahoo.com.au> <Pine.LNX.4.64.0612172145250.3479@woody.osdl.org>
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Linus Torvalds wrote:
> 
> On Mon, 18 Dec 2006, Nick Piggin wrote:
> 
>>I can't see how that's exactly a problem -- so long as the page does not
>>get reclaimed (it won't, because we have a ref on it) then all that matters
>>is that the page eventually gets marked dirty.
> 
> 
> But the point being that "try_to_free_buffers()" marks it clean 
> AFTERWARDS.

For some reason I thought you were suggesting it is a problem on its own :P

Yes I agree there is a pagefault vs ttfb race.

-- 
SUSE Labs, Novell Inc.
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