linux-kernel - Re: 2.6.19 file content corruption on ext3

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Date:	Mon, 18 Dec 2006 18:30:08 +1100
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Linus Torvalds <torvalds@...l.org>
CC:	Andrew Morton <akpm@...l.org>, andrei.popa@...eo.ro,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Hugh Dickins <hugh@...itas.com>,
	Florian Weimer <fw@...eb.enyo.de>,
	Marc Haber <mh+linux-kernel@...schlus.de>,
	Martin Michlmayr <tbm@...ius.com>
Subject: Re: 2.6.19 file content corruption on ext3

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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