From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Thu, 5 Mar 2009 01:36:57 +0000 (-0800)
Subject: xen/mmu: weaken flush_tlb_other test
X-Git-Tag: v2.6.31-rc1~410^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8de07bbdede03598801cf33ab23dcbcd28a918d2;p=pandora-kernel.git

xen/mmu: weaken flush_tlb_other test

Impact: fixes crashing bug

There's no particular problem with getting an empty cpu mask,
so just shortcut-return if we get one.

Avoids crash reported by Christophe Saout <christophe@saout.de>

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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