diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/i8254.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index ab5318727579..7d694ac7f4a4 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -236,19 +236,9 @@ static void kvm_pit_ack_irq(struct kvm_irq_ack_notifier *kian) { struct kvm_kpit_state *ps = container_of(kian, struct kvm_kpit_state, irq_ack_notifier); - int value; spin_lock(&ps->inject_lock); - value = atomic_dec_return(&ps->pending); - if (value < 0) - /* spurious acks can be generated if, for example, the - * PIC is being reset. Handle it gracefully here - */ - atomic_inc(&ps->pending); - else if (value > 0 && ps->reinject) - /* in this case, we had multiple outstanding pit interrupts - * that we needed to inject. Reinject - */ + if (atomic_dec_if_positive(&ps->pending) > 0 && ps->reinject) queue_kthread_work(&ps->pit->worker, &ps->pit->expired); ps->irq_ack = 1; spin_unlock(&ps->inject_lock); |