linux-kernel - Re: [PATCH 00 of 10] x86: unify asm/pgtable.h

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Date:	Wed, 9 Jan 2008 01:59:15 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Andi Kleen <ak@...e.de>,
	Glauber de Oliveira Costa <glommer@...il.com>,
	Jan Beulich <jbeulich@...ell.com>
Subject: Re: [PATCH 00 of 10] x86: unify asm/pgtable.h


* Jeremy Fitzhardinge <jeremy@...p.org> wrote:

> In other words, prot and ref_prot can never be equal, so this path is 
> always taken, and the other branch which tests pte_huge() is never 
> run.
>
> Andi?  Jan?  Is this code just buggy, or is there something else going 
> on here?

this code is plain buggy but fixing it triggered driver bugs in the past 
so we've been procrastinating it forever ...

	Ingo
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