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OpenCloudOS-Kernel
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KVM: rearrange injection cancelling code 

Each time we need to cancel injection we invoke same code
(cancel_injection callback).  Move it towards the end of function using
the familiar goto on error pattern.

Will make it easier to do more cleanups for PV EOI.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2012-06-24 19:25:00 +03:00 committed by Avi Kivity
parent 5cfb1d5a65
commit d905c06935
1 changed files with 6 additions and 4 deletions
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10
arch/x86/kvm/x86.c
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@ -5296,8 +5296,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
r = kvm_mmu_reload(vcpu);
if (unlikely(r)) {
kvm_x86_ops->cancel_injection(vcpu);
goto out;
goto cancel_injection;
}
preempt_disable();
@ -5322,9 +5321,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
smp_wmb();
local_irq_enable();
preempt_enable();
kvm_x86_ops->cancel_injection(vcpu);
r = 1;
goto out;
goto cancel_injection;
}
srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
@ -5392,6 +5390,10 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
kvm_lapic_sync_from_vapic(vcpu);
r = kvm_x86_ops->handle_exit(vcpu);
return r;
cancel_injection:
kvm_x86_ops->cancel_injection(vcpu);
out:
return r;
}