Re: [PATCH 3/5] KVM: s390: Use kvm_get_vcpu() instead of open-coded access

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On Fri,  5 Nov 2021 19:20:59 +0000
Marc Zyngier <maz@xxxxxxxxxx> wrote:

> As we are about to change the way vcpus are allocated, mandate
> the use of kvm_get_vcpu() instead of open-coding the access.
> 
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>

makes sense

Reviewed-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>

> ---
>  arch/s390/kvm/kvm-s390.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
> index 7af53b8788fa..4a0f62b03964 100644
> --- a/arch/s390/kvm/kvm-s390.c
> +++ b/arch/s390/kvm/kvm-s390.c
> @@ -4572,7 +4572,7 @@ int kvm_s390_vcpu_start(struct kvm_vcpu *vcpu)
>  	}
>  
>  	for (i = 0; i < online_vcpus; i++) {
> -		if (!is_vcpu_stopped(vcpu->kvm->vcpus[i]))
> +		if (!is_vcpu_stopped(kvm_get_vcpu(vcpu->kvm, i)))
>  			started_vcpus++;
>  	}
>  
> @@ -4634,9 +4634,11 @@ int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu)
>  	__disable_ibs_on_vcpu(vcpu);
>  
>  	for (i = 0; i < online_vcpus; i++) {
> -		if (!is_vcpu_stopped(vcpu->kvm->vcpus[i])) {
> +		struct kvm_vcpu *tmp = kvm_get_vcpu(vcpu->kvm, i);
> +
> +		if (!is_vcpu_stopped(tmp)) {
>  			started_vcpus++;
> -			started_vcpu = vcpu->kvm->vcpus[i];
> +			started_vcpu = tmp;
>  		}
>  	}
>  

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