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    Subject[PATCH v2 09/12] KVM: MMU: remove unnecessary kvm_mmu_free_some_pages
    In kvm_mmu_pte_write, we do not need to alloc shadow page, so calling
    kvm_mmu_free_some_pages is really unnecessary

    Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
    ---
    arch/x86/kvm/mmu.c | 1 -
    1 files changed, 0 insertions(+), 1 deletions(-)
    diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
    index 5517115..9d0acdf 100644
    --- a/arch/x86/kvm/mmu.c
    +++ b/arch/x86/kvm/mmu.c
    @@ -3585,7 +3585,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
    */
    mmu_topup_memory_caches(vcpu);
    spin_lock(&vcpu->kvm->mmu_lock);
    - kvm_mmu_free_some_pages(vcpu);
    ++vcpu->kvm->stat.mmu_pte_write;
    trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
    if (gfn == vcpu->arch.last_pt_write_gfn
    --
    1.7.5.4


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