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: <4627C6B9.7000605@goop.org>
Date:	Thu, 19 Apr 2007 12:44:57 -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:
> I think adding a flags field and an allocate flag to my callback
> struct would be sufficient here.
>   

Yes, probably.

What about something that wants to shatter superpages?

> The syntax is horrible, but I don't think we end up using the
> resultant type enough to justify the namespace pollution.
>   

Don't know that that's a huge concern.  The typedef namespace (*_t) is
pretty empty, and its not like we're talking about something that's
visible outside the kernel.  And the syntax is *really* ugly.

    J
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