Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752981AbdFTJQH (ORCPT ); Tue, 20 Jun 2017 05:16:07 -0400 Received: from mail-pg0-f68.google.com ([74.125.83.68]:34408 "EHLO mail-pg0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752175AbdFTJQC (ORCPT ); Tue, 20 Jun 2017 05:16:02 -0400 From: guangrong.xiao@gmail.com X-Google-Original-From: xiaoguangrong@tencent.com To: pbonzini@redhat.com, mtosatti@redhat.com, avi.kivity@gmail.com, rkrcmar@redhat.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, qemu-devel@nongnu.org, Xiao Guangrong Subject: [PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock Date: Tue, 20 Jun 2017 17:15:26 +0800 Message-Id: <20170620091526.4287-8-xiaoguangrong@tencent.com> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170620091526.4287-1-xiaoguangrong@tencent.com> References: <20170620091526.4287-1-xiaoguangrong@tencent.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 721 Lines: 25 From: Xiao Guangrong mmu_spte_age() is under the protection of mmu-lock, no reason to use mmu_spte_get_lockless() Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 7711953..dc00c32 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -852,7 +852,7 @@ static u64 restore_acc_track_spte(u64 spte) /* Returns the Accessed status of the PTE and resets it at the same time. */ static bool mmu_spte_age(u64 *sptep) { - u64 spte = mmu_spte_get_lockless(sptep); + u64 spte = *sptep; if (!is_accessed_spte(spte)) return false; -- 2.9.4