linux-kernel - Re: [PATCH v2 2/4] KVM: X86: implement the logic for spinlock optimization

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Date:   Tue, 8 Aug 2017 09:30:12 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     "Longpeng(Mike)" <longpeng2@...wei.com>, rkrcmar@...hat.com
Cc:     agraf@...e.com, borntraeger@...ibm.com, cohuck@...hat.com,
        christoffer.dall@...aro.org, marc.zyngier@....com,
        james.hogan@...tec.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, weidong.huang@...wei.com,
        arei.gonglei@...wei.com, wangxinxin.wang@...wei.com,
        longpeng.mike@...il.com, david@...hat.com
Subject: Re: [PATCH v2 2/4] KVM: X86: implement the logic for spinlock
 optimization

On 08/08/2017 06:05, Longpeng(Mike) wrote:
> diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
> index cd0e6e6..dec5e8a 100644
> --- a/arch/x86/kvm/hyperv.c
> +++ b/arch/x86/kvm/hyperv.c
> @@ -1268,7 +1268,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
>  
>  	switch (code) {
>  	case HVCALL_NOTIFY_LONG_SPIN_WAIT:
> -		kvm_vcpu_on_spin(vcpu, kvm_arch_vcpu_in_kernel(vcpu));
> +		kvm_vcpu_on_spin(vcpu, kvm_x86_ops->spin_in_kernel(vcpu));
>  		break;
>  	case HVCALL_POST_MESSAGE:
>  	case HVCALL_SIGNAL_EVENT:

This can be true as well.  I can change this on commit.

Paolo