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Date: Fri, 17 Feb 2017 15:59:21 +0100 From: Radim Krčmář <rkrcmar@...hat.com> To: Andrew Jones <drjones@...hat.com> Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>, Marc Zyngier <marc.zyngier@....com>, Christian Borntraeger <borntraeger@...ibm.com>, Cornelia Huck <cornelia.huck@...ibm.com>, James Hogan <james.hogan@...tec.com>, Paul Mackerras <paulus@...abs.org>, Christoffer Dall <christoffer.dall@...aro.org> Subject: Re: [PATCH 5/5] KVM: add kvm_request_pending 2017-02-17 10:51+0100, Andrew Jones: > On Thu, Feb 16, 2017 at 05:04:49PM +0100, Radim Krčmář wrote: > ... >> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h >> index 2cc438685af8..563cf964dc5c 100644 >> --- a/include/linux/kvm_host.h >> +++ b/include/linux/kvm_host.h >> @@ -1101,6 +1101,11 @@ static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) >> * should contain kvm_vcpu_kick(). >> */ >> >> +static inline bool kvm_request_pending(struct kvm_vcpu *vcpu) >> +{ >> + return vcpu->requests; > > How about wrapping this with READ_ONCE for good measure? Sounds good; I don't think that callers would want stale values, thanks.
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