xen/mmu: weaken flush_tlb_other test
authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Thu, 5 Mar 2009 01:36:57 +0000 (17:36 -0800)
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Mon, 30 Mar 2009 16:25:34 +0000 (09:25 -0700)
commit8de07bbdede03598801cf33ab23dcbcd28a918d2
tree9caf7228d87561b411e0057c0a4b9107fc416ee2
parent4185f35404dc96f8525298c7c548aee419f3b3f4
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>
arch/x86/xen/mmu.c