linux-kernel - Re: [PATCH] Fix preemptible lazy mode bug

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Message-ID: <46DFCEE3.8010903@goop.org>
Date:	Thu, 06 Sep 2007 10:56:51 +0100
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Andi Kleen <ak@...e.de>
CC:	Zachary Amsden <zach@...are.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linus Torvalds <torvalds@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>,
	Chris Wright <chrisw@...s-sol.org>, stable@...nel.org,
	Virtualization Mailing List <virtualization@...ts.osdl.org>
Subject: Re: [PATCH] Fix preemptible lazy mode bug

Andi Kleen wrote:
>> ; it does
>> seem perfectly acceptable though for the mm code to use kmap or vmap
>> (not kmap_atomic) internally somewhere in the pagetable code.
>>     
>
> i386 does it all the time for highmem pagetables in fact.
>   

Yes, it uses kmap_atomic(_pte) all the time.  Is that what you meant?

    J
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