linux-kernel - Re: [PATCH v4 11/19] KVM: x86: Free arrays for old memslot when moving memslot's base gfn

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Message-ID: <20191217224802.GA26669@xz-x1>
Date:   Tue, 17 Dec 2019 17:48:02 -0500
From:   Peter Xu <peterx@...hat.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     James Hogan <jhogan@...nel.org>,
        Paul Mackerras <paulus@...abs.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Marc Zyngier <maz@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Wanpeng Li <wanpengli@...cent.com>,
        Philippe Mathieu-Daudé <f4bug@...at.org>,
        kvm@...r.kernel.org, David Hildenbrand <david@...hat.com>,
        Joerg Roedel <joro@...tes.org>,
        Cornelia Huck <cohuck@...hat.com>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm-ppc@...r.kernel.org,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        kvmarm@...ts.cs.columbia.edu, Jim Mattson <jmattson@...gle.com>
Subject: Re: [PATCH v4 11/19] KVM: x86: Free arrays for old memslot when
 moving memslot's base gfn

On Tue, Dec 17, 2019 at 12:40:33PM -0800, Sean Christopherson wrote:
> Explicitly free the metadata arrays (stored in slot->arch) in the old
> memslot structure when moving the memslot's base gfn is committed.  This
> eliminates x86's dependency on kvm_free_memslot() being called when a
> memlsot move is committed, and paves the way for removing the funky code
> in kvm_free_memslot() that conditionally frees structures based on its
> @dont param.
> 
> Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>

Reviewed-by: Peter Xu <peterx@...hat.com>

-- 
Peter Xu