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Message-ID: <ZBQqYNKeHIHLGRLR@yzhao56-desk.sh.intel.com>
Date:   Fri, 17 Mar 2023 16:52:48 +0800
From:   Yan Zhao <yan.y.zhao@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>
CC:     Paolo Bonzini <pbonzini@...hat.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Zhi Wang <zhi.a.wang@...el.com>, <kvm@...r.kernel.org>,
        <intel-gvt-dev@...ts.freedesktop.org>,
        <intel-gfx@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        Ben Gardon <bgardon@...gle.com>
Subject: Re: [PATCH v2 26/27] KVM: x86/mmu: Handle KVM bookkeeping in
 page-track APIs, not callers

Reviewed-by: Yan Zhao <yan.y.zhao@...el.com>

On Fri, Mar 10, 2023 at 04:22:57PM -0800, Sean Christopherson wrote:
> Get/put references to KVM when a page-track notifier is (un)registered
> instead of relying on the caller to do so.  Forcing the caller to do the
> bookkeeping is unnecessary and adds one more thing for users to get
> wrong, e.g. see commit 9ed1fdee9ee3 ("drm/i915/gvt: Get reference to KVM
> iff attachment to VM is successful").
Just realized that "iff" stands for "if and only if" :) 

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