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.