linux-kernel - Re: [PATCH v2] KVM: Optimize kvm_arch_vcpu_ioctl

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Message-ID: <20200416101047.1cb9693c.cohuck@redhat.com>
Date:   Thu, 16 Apr 2020 10:10:47 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Cc:     pbonzini@...hat.com, tsbogend@...ha.franken.de, paulus@...abs.org,
        mpe@...erman.id.au, benh@...nel.crashing.org,
        borntraeger@...ibm.com, frankja@...ux.ibm.com, david@...hat.com,
        heiko.carstens@...ibm.com, gor@...ux.ibm.com,
        sean.j.christopherson@...el.com, vkuznets@...hat.com,
        wanpengli@...cent.com, jmattson@...gle.com, joro@...tes.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, x86@...nel.org,
        hpa@...or.com, maz@...nel.org, james.morse@....com,
        julien.thierry.kdev@...il.com, suzuki.poulose@....com,
        christoffer.dall@....com, peterx@...hat.com, thuth@...hat.com,
        kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kvmarm@...ts.cs.columbia.edu, linux-mips@...r.kernel.org,
        kvm-ppc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] KVM: Optimize kvm_arch_vcpu_ioctl_run function

On Thu, 16 Apr 2020 13:10:57 +0800
Tianjia Zhang <tianjia.zhang@...ux.alibaba.com> wrote:

> In earlier versions of kvm, 'kvm_run' is an independent structure
> and is not included in the vcpu structure. At present, 'kvm_run'
> is already included in the vcpu structure, so the parameter
> 'kvm_run' is redundant.
> 
> This patch simplify the function definition, removes the extra

s/simplify/simplifies/

> 'kvm_run' parameter, and extract it from the 'kvm_vcpu' structure

s/extract/extracts/

> if necessary.
> 
> Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
> ---
> 
> v2 change:
>   remove 'kvm_run' parameter and extract it from 'kvm_vcpu'
> 
>  arch/mips/kvm/mips.c       |  3 ++-
>  arch/powerpc/kvm/powerpc.c |  3 ++-
>  arch/s390/kvm/kvm-s390.c   |  3 ++-
>  arch/x86/kvm/x86.c         | 11 ++++++-----
>  include/linux/kvm_host.h   |  2 +-
>  virt/kvm/arm/arm.c         |  6 +++---
>  virt/kvm/kvm_main.c        |  2 +-
>  7 files changed, 17 insertions(+), 13 deletions(-)
> 

Reviewed-by: Cornelia Huck <cohuck@...hat.com>