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

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Message-Id: <1166605978.10372.195.camel@twins>
Date:	Wed, 20 Dec 2006 10:12:58 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Andrei Popa <andrei.popa@...eo.ro>, Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Hugh Dickins <hugh@...itas.com>,
	Florian Weimer <fw@...eb.enyo.de>,
	Marc Haber <mh+linux-kernel@...schlus.de>,
	Martin Michlmayr <tbm@...ius.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>
Subject: Re: 2.6.19 file content corruption on ext3

On Wed, 2006-12-20 at 10:01 +0100, Peter Zijlstra wrote:

> I will try, but I had a look around the different architectures
> implementation of ptep_clear_flush_dirty() and saw that not all do the
> actual flush. So if we go down this road perhaps we should introduce
> another per arch function that does the potential flush. like
> flush_tlb_on_clear_dirty() or something like that.

never mind, we do need an unconditional flush for changing the
protection too.


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