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SubjectSPARC64: Fix __get_cpu_var in preemption-enabled area.
-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: David S. Miller <davem@davemloft.net>

Upstream commit: 69072f6e8e4bd4799d2a54e4ff8771d0657512c1

Reported by Mariusz Kozlowski.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---
arch/sparc64/mm/tlb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/sparc64/mm/tlb.c
+++ b/arch/sparc64/mm/tlb.c
@@ -23,10 +23,11 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_ga

void flush_tlb_pending(void)
{
- struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
+ struct mmu_gather *mp;

preempt_disable();

+ mp = &__get_cpu_var(mmu_gathers);
if (mp->tlb_nr) {
flush_tsb_user(mp);

--


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