AcoSail/kernel_optimize_test
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KVM: Grab pic lock in kvm_pic_clear_isr_ack

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isr_ack is protected by kvm_pic->lock.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2009-06-04 15:08:21 -03:00 committed by Avi Kivity
parent 238adc7705
commit 9f4cc12765
1 changed files with 2 additions and 0 deletions
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arch/x86/kvm/i8259.c
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@ -72,8 +72,10 @@ static void pic_clear_isr(struct kvm_kpic_state *s, int irq)
void kvm_pic_clear_isr_ack(struct kvm *kvm)
{
struct kvm_pic *s = pic_irqchip(kvm);
pic_lock(s);
s->pics[0].isr_ack = 0xff;
s->pics[1].isr_ack = 0xff;
pic_unlock(s);
}
/*