Commit-ID: 5caecb9432428241d0c641897f07ff4003f1b55f
Gitweb: http://git.kernel.org/tip/5caecb9432428241d0c641897f07ff4003f1b55f
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
AuthorDate: Fri, 20 Feb 2009 23:01:26 -0800
Committer: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
CommitDate: Sun, 29 Mar 2009 23:47:00 -0700
xen: disable preempt for leave_lazy_mmu
xen_mc_flush() requires preemption to be disabled for its own sanity,
so disable it while we're flushing.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/mmu.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3f2d0fe..0e57238 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1812,8 +1812,10 @@ __init void xen_post_allocator_init(void)
static void xen_leave_lazy_mmu(void)
{
+ preempt_disable();
xen_mc_flush();
paravirt_leave_lazy_mmu();
+ preempt_enable();
}
const struct pv_mmu_ops xen_mmu_ops __initdata = {
--
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