linux-kernel - Re: [patch 20/20] Add apply_to_page_range() which applies a function to a pte range.

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Message-ID: <4627E131.5070801@goop.org>
Date:	Thu, 19 Apr 2007 14:37:53 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Matt Mackall <mpm@...enic.com>
CC:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	virtualization@...ts.osdl.org, lkml <linux-kernel@...r.kernel.org>,
	Ian Pratt <ian.pratt@...source.com>,
	Christian Limpach <Christian.Limpach@...cam.ac.uk>,
	Chris Wright <chrisw@...s-sol.org>,
	Christoph Lameter <clameter@....com>,
	Matt Mackall <mpm@...te.org>, Ingo Molnar <mingo@...e.hu>
Subject: Re: [patch 20/20] Add apply_to_page_range() which applies a function
 to a pte range.

Matt Mackall wrote:
> Haven't thought a huge amount about that. Perhaps it's best done with
> the level 3 callback?
>   

Level 2, I think, assuming you count the pte pages as level 1.  I think
it can be dealt with, so long as it correctly skips level 1 callbacks
for superpages, and does the test after the level 2 callback has returned.

    J
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