From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752542Ab1IVIyx (ORCPT ); Thu, 22 Sep 2011 04:54:53 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:61423 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752006Ab1IVIyu (ORCPT ); Thu, 22 Sep 2011 04:54:50 -0400 Message-ID: <4E7AF85A.4050102@cn.fujitsu.com> Date: Thu, 22 Sep 2011 16:56:58 +0800 From: Xiao Guangrong User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc15 Thunderbird/3.1.10 MIME-Version: 1.0 To: Avi Kivity CC: Marcelo Tosatti , LKML , KVM Subject: [PATCH v4 08/11] KVM: MMU: remove unnecessary kvm_mmu_free_some_pages References: <4E7AF758.7060900@cn.fujitsu.com> In-Reply-To: <4E7AF758.7060900@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2011-09-22 16:53:24, Serialize by Router on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2011-09-22 16:53:24, Serialize complete at 2011-09-22 16:53:24 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 4128aba..7b22f3a 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3589,7 +3589,6 @@ 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