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Subject: Re: [PATCH v5 01/13] KVM: x86: Cache total page count to avoid
 traversing the memslot array
To:     Sean Christopherson <seanjc@google.com>
Cc:     Paolo Bonzini <pbonzini@redhat.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Igor Mammedov <imammedo@redhat.com>,
        Marc Zyngier <maz@kernel.org>,
        James Morse <james.morse@arm.com>,
        Julien Thierry <julien.thierry.kdev@gmail.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Huacai Chen <chenhuacai@kernel.org>,
        Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
        Paul Mackerras <paulus@ozlabs.org>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Janosch Frank <frankja@linux.ibm.com>,
        David Hildenbrand <david@redhat.com>,
        Cornelia Huck <cohuck@redhat.com>,
        Claudio Imbrenda <imbrenda@linux.ibm.com>,
        Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org
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From:   "Maciej S. Szmigiero" <mail@maciej.szmigiero.name>
Message-ID: <27ba659b-137e-863f-7892-b8968fd14e59@maciej.szmigiero.name>
Date:   Wed, 3 Nov 2021 16:38:10 +0100
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On 03.11.2021 15:47, Sean Christopherson wrote:
> On Wed, Nov 03, 2021, Maciej S. Szmigiero wrote:
>> Capping total n_memslots_pages makes sense to me to avoid the (existing)
>> nr_mmu_pages wraparound issue, will update the next patchset version
>> accordingly.
> 
> No need to do it yourself.  I have a reworked version of the series with a bunch
> of cleanups before and after the meat of your series, as well non-functional changes
> (hopefully) to the "Resolve memslot ID via a hash table" and "Keep memslots in
> tree-based structures" to avoid all the swap() behavior and to provide better
> continuity between the aforementioned patches.  Unless something goes sideways in
> the last few touchups, I'll get it posted today.
> 

Thanks.