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-rw-r--r--arch/x86/kvm/lapic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 180ba7316da..73f43de69f6 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -945,8 +945,8 @@ static int __apic_timer_fn(struct kvm_lapic *apic)
int result = 0;
wait_queue_head_t *q = &apic->vcpu->wq;
- atomic_inc(&apic->timer.pending);
- set_bit(KVM_REQ_PENDING_TIMER, &apic->vcpu->requests);
+ if(!atomic_inc_and_test(&apic->timer.pending))
+ set_bit(KVM_REQ_PENDING_TIMER, &apic->vcpu->requests);
if (waitqueue_active(q)) {
apic->vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
wake_up_interruptible(q);