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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2013-06-12 13:54:55 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-06-17 17:09:17 +0200 |
| commit | d0321a24bf10e2299a997c4747b924f79f70a232 (patch) | |
| tree | e10307eb964122b951ea0ca56d756092143605bd /arch/s390/kvm/kvm-s390.c | |
| parent | b110feaf4d0bbc31802589ea6b956389afdabcee (diff) | |
| download | lwn-d0321a24bf10e2299a997c4747b924f79f70a232.tar.gz lwn-d0321a24bf10e2299a997c4747b924f79f70a232.zip | |
KVM: s390: Use common waitqueue
Lets use the common waitqueue for kvm cpus on s390. By itself it is
just a cleanup, but it should also improve the accuracy of diag 0x44
which is implemented via kvm_vcpu_on_spin. kvm_vcpu_on_spin has
an explicit check for waiting on the waitqueue to optimize the
yielding.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index a3183651ff45..ba694d2ba51e 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -438,7 +438,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, vcpu->arch.local_int.float_int = &kvm->arch.float_int; spin_lock(&kvm->arch.float_int.lock); kvm->arch.float_int.local_int[id] = &vcpu->arch.local_int; - init_waitqueue_head(&vcpu->arch.local_int.wq); + vcpu->arch.local_int.wq = &vcpu->wq; vcpu->arch.local_int.cpuflags = &vcpu->arch.sie_block->cpuflags; spin_unlock(&kvm->arch.float_int.lock); |