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KVM: s390: drop out early in kvm_s390_has_irq()
Let's get rid of the local variable and exit directly if we found any pending interrupt. This is not only faster, but also better readable. Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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1 changed files with 9 additions and 11 deletions
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@ -808,23 +808,21 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
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int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
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{
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int rc;
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if (deliverable_irqs(vcpu))
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return 1;
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rc = !!deliverable_irqs(vcpu);
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if (!rc && kvm_cpu_has_pending_timer(vcpu))
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rc = 1;
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if (kvm_cpu_has_pending_timer(vcpu))
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return 1;
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/* external call pending and deliverable */
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if (!rc && kvm_s390_ext_call_pending(vcpu) &&
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if (kvm_s390_ext_call_pending(vcpu) &&
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!psw_extint_disabled(vcpu) &&
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(vcpu->arch.sie_block->gcr[0] & 0x2000ul))
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rc = 1;
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return 1;
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if (!rc && !exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
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rc = 1;
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return rc;
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if (!exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
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return 1;
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return 0;
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}
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int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
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