linux-kernel - Re: [PATCH 4/10] I386 pgd clone under lock fix.patch

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Message-ID: <20070410002750.GZ2986@holomorphy.com>
Date:	Mon, 9 Apr 2007 17:27:50 -0700
From:	William Lee Irwin III <wli@...omorphy.com>
To:	Zachary Amsden <zach@...are.com>
Cc:	Andrew Morton <akpm@...l.org>, Andi Kleen <ak@....de>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Chris Wright <chrisw@...s-sol.org>,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/10] I386 pgd clone under lock fix.patch

On Mon, Apr 09, 2007 at 05:06:11PM -0700, Zachary Amsden wrote:
> Copying of the pgd range must happen under the pgd_lock.  This got broken by
> the paravirt changes in the -mm tree.  Badness can result if you copy the pgd
> before being added to the list when splitting or rejoining large pages.
> Signed-off-by: Zachary Amsden <zach@...are.com>

Sorry my review missed this.

Acked-by: William Irwin <wli@...omorphy.com>


-- wli
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