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Commit cc1b4680 authored by Davidlohr Bueso's avatar Davidlohr Bueso Committed by Paolo Bonzini
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kvm,lapic: Justify use of swait_active() 



A comment might serve future readers.

Signed-off-by: default avatarDavidlohr Bueso <dbueso@suse.de>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent b9f67a42

arch/x86/kvm/lapic.c

+4 −0
Original line number Diff line number Diff line
@@ -1324,6 +1324,10 @@ static void apic_timer_expired(struct kvm_lapic *apic) 
	atomic_inc(&apic->lapic_timer.pending);

	kvm_set_pending_timer(vcpu);



	/*

	 * For x86, the atomic_inc() is serialized, thus

	 * using swait_active() is safe.

	 */

	if (swait_active(q))

		swake_up(q);