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    SubjectRe: [PATCH 20/28] KVM: x86/mmu: Use common TDP MMU zap helper for MMU notifier unmap hook
    On Fri, Nov 19, 2021 at 8:51 PM Sean Christopherson <seanjc@google.com> wrote:
    >
    > Use the common TDP MMU zap helper when hanlding an MMU notifier unmap
    > event, the two flows are semantically identical.
    >
    > No functional change intended.
    >
    > Signed-off-by: Sean Christopherson <seanjc@google.com>

    Reviewed-by: Ben Gardon <bgardon@google.com>

    > ---
    > arch/x86/kvm/mmu/tdp_mmu.c | 9 ++-------
    > 1 file changed, 2 insertions(+), 7 deletions(-)
    >
    > diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
    > index ea6651e735c2..9449cb5baf0b 100644
    > --- a/arch/x86/kvm/mmu/tdp_mmu.c
    > +++ b/arch/x86/kvm/mmu/tdp_mmu.c
    > @@ -1112,13 +1112,8 @@ int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
    > bool kvm_tdp_mmu_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range,
    > bool flush)
    > {
    > - struct kvm_mmu_page *root;
    > -
    > - for_each_tdp_mmu_root_yield_safe(kvm, root, range->slot->as_id, false)
    > - flush = zap_gfn_range(kvm, root, range->start, range->end,
    > - range->may_block, flush, false);
    > -
    > - return flush;
    > + return __kvm_tdp_mmu_zap_gfn_range(kvm, range->slot->as_id, range->start,
    > + range->end, range->may_block, flush);
    > }
    >
    > typedef bool (*tdp_handler_t)(struct kvm *kvm, struct tdp_iter *iter,
    > --
    > 2.34.0.rc2.393.gf8c9666880-goog
    >

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