From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Mon, 17 Nov 2008 17:35:00 +0000 (-0800)
Subject: xen: fix scrub_page()
X-Git-Tag: v2.6.28-rc6~14^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26a3e99160cfb06a0a33e25b9fb0d516e2cc680d;p=pandora-kernel.git

xen: fix scrub_page()

Impact: fix guest kernel crash with CONFIG_XEN_SCRUB_PAGES=y

Jens noticed that scrub_page() has a buggy unmap of the wrong
thing. (virtual address instead of page)

Linus pointed out that the whole scrub_page() code is an unnecessary
reimplementation of clear_highpage() to begin with.

Just use clear_highpage() rather than reimplementing it poorly.

Reported-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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