xen: fix scrub_page()
authorJeremy Fitzhardinge <jeremy@goop.org>
Mon, 17 Nov 2008 17:35:00 +0000 (09:35 -0800)
committerIngo Molnar <mingo@elte.hu>
Mon, 17 Nov 2008 18:11:26 +0000 (19:11 +0100)
commit26a3e99160cfb06a0a33e25b9fb0d516e2cc680d
tree83cec2de720c3ce23a612b4d1bf37c36bf28f0ec
parentd3c6aa1e69f705ac3ab64584101b1d38435b1353
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>
drivers/xen/balloon.c