[PULL 1/3] KVM: arm/arm64: disable preemption when calling smp_call_function_many

[Christoffer Dall]

From: Eric Auger <eric.auger at linaro.org>

Preemption must be disabled when calling smp_call_function_many

Reported-by: bartosz.wawrzyniak at tieto.com
Signed-off-by: Eric Auger <eric.auger at linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall at linaro.org>
---
 arch/arm/kvm/arm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 3e0fb66..6accd66 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -373,7 +373,9 @@ static void exit_vm_noop(void *info)
 
 void force_vm_exit(const cpumask_t *mask)
 {
+	preempt_disable();
 	smp_call_function_many(mask, exit_vm_noop, NULL, true);
+	preempt_enable();
 }
 
 /**
-- 
2.1.2.330.g565301e.dirty