linux-kernel - Re: [PATCH v2] kvm_host: unify VM_STAT and VCPU

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Date:   Wed, 15 Apr 2020 18:20:37 +0200
From:   Cornelia Huck <cohuck@...hat.com>
To:     Emanuele Giuseppe Esposito <eesposit@...hat.com>
Cc:     kvm@...r.kernel.org,
        Philippe Mathieu-Daudé <f4bug@...at.org>,
        Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Paul Mackerras <paulus@...abs.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        David Hildenbrand <david@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        kvm-ppc@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH v2] kvm_host: unify VM_STAT and VCPU_STAT definitions in
 a single place

On Tue, 14 Apr 2020 17:56:25 +0200
Emanuele Giuseppe Esposito <eesposit@...hat.com> wrote:

> The macros VM_STAT and VCPU_STAT are redundantly implemented in multiple
> files, each used by a different architecure to initialize the debugfs
> entries for statistics. Since they all have the same purpose, they can be
> unified in a single common definition in include/linux/kvm_host.h
> 
> Signed-off-by: Emanuele Giuseppe Esposito <eesposit@...hat.com>
> ---
>  arch/arm64/kvm/guest.c    |  23 ++---
>  arch/mips/kvm/mips.c      |  61 ++++++------
>  arch/powerpc/kvm/book3s.c |  61 ++++++------
>  arch/powerpc/kvm/booke.c  |  41 ++++----
>  arch/s390/kvm/kvm-s390.c  | 203 +++++++++++++++++++-------------------
>  arch/x86/kvm/x86.c        |  80 +++++++--------
>  include/linux/kvm_host.h  |   5 +
>  7 files changed, 231 insertions(+), 243 deletions(-)

Adds a bit of churn, but the end result does look nicer. Looks sane,
but did not review in detail.

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