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KVM: s390: Use kvm_vcpu_wake_up in kvm_s390_vcpu_wakeup

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Use kvm_vcpu_wake_up() in kvm_s390_vcpu_wakeup().

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wanpeng Li 2019-07-18 19:39:07 +08:00 committed by Paolo Bonzini
parent d73eb57b80
commit d984740944
1 changed files with 3 additions and 20 deletions
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23
arch/s390/kvm/interrupt.c
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@ -1224,28 +1224,11 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
{
/*
* We cannot move this into the if, as the CPU might be already
* in kvm_vcpu_block without having the waitqueue set (polling)
*/
vcpu->valid_wakeup = true;
kvm_vcpu_wake_up(vcpu);
/*
* This is mostly to document, that the read in swait_active could
* be moved before other stores, leading to subtle races.
* All current users do not store or use an atomic like update
*/
smp_mb__after_atomic();
if (swait_active(&vcpu->wq)) {
/*
* The vcpu gave up the cpu voluntarily, mark it as a good
* yield-candidate.
*/
vcpu->ready = true;
swake_up_one(&vcpu->wq);
vcpu->stat.halt_wakeup++;
}
/*
* The VCPU might not be sleeping but is executing the VSIE. Let's
* The VCPU might not be sleeping but rather executing VSIE. Let's
* kick it, so it leaves the SIE to process the request.
*/
kvm_s390_vsie_kick(vcpu);