KVM: x86: inline kvm_ioapic_handles_vector()

An overhead from function call is not appropriate for its size and
frequency of execution.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index a2e9d96..24f0f17 100644 (file)
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -473,13 +473,6 @@ static void __kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu,
        }
 }
 
-bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector)
-{
-       struct kvm_ioapic *ioapic = kvm->arch.vioapic;
-       smp_rmb();
-       return test_bit(vector, ioapic->handled_vectors);
-}
-
 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector, int trigger_mode)
 {
        struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic;

diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
index 38d8402..6e265cf 100644 (file)
--- a/arch/x86/kvm/ioapic.h
+++ b/arch/x86/kvm/ioapic.h
@@ -98,13 +98,19 @@ static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
        return kvm->arch.vioapic;
 }
 
+static inline bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector)
+{
+       struct kvm_ioapic *ioapic = kvm->arch.vioapic;
+       smp_rmb();
+       return test_bit(vector, ioapic->handled_vectors);
+}
+
 void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu);
 bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
                int short_hand, unsigned int dest, int dest_mode);
 int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector,
                        int trigger_mode);
-bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector);
 int kvm_ioapic_init(struct kvm *kvm);
 void kvm_ioapic_destroy(struct kvm *kvm);
 int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id,