From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92CA8C433DF for ; Mon, 17 Aug 2020 03:38:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77E3F20658 for ; Mon, 17 Aug 2020 03:38:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727122AbgHQDiY (ORCPT ); Sun, 16 Aug 2020 23:38:24 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:43272 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727074AbgHQDiW (ORCPT ); Sun, 16 Aug 2020 23:38:22 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 5A30889994A65CB4171F; Mon, 17 Aug 2020 11:38:18 +0800 (CST) Received: from DESKTOP-5IS4806.china.huawei.com (10.174.187.22) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.487.0; Mon, 17 Aug 2020 11:38:07 +0800 From: Keqian Zhu To: , , , CC: Marc Zyngier , Catalin Marinas , Will Deacon , James Morse , "Suzuki K Poulose" , Steven Price , , Keqian Zhu Subject: [PATCH 3/3] KVM: arm64: Use kvm_write_guest_lock when init stolen time Date: Mon, 17 Aug 2020 11:37:29 +0800 Message-ID: <20200817033729.10848-4-zhukeqian1@huawei.com> X-Mailer: git-send-email 2.8.4.windows.1 In-Reply-To: <20200817033729.10848-1-zhukeqian1@huawei.com> References: <20200817033729.10848-1-zhukeqian1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.174.187.22] X-CFilter-Loop: Reflected Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org There is a lock version kvm_write_guest. Use it to simplify code. Signed-off-by: Keqian Zhu --- arch/arm64/kvm/pvtime.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/arch/arm64/kvm/pvtime.c b/arch/arm64/kvm/pvtime.c index f7b52ce..2b24e7f 100644 --- a/arch/arm64/kvm/pvtime.c +++ b/arch/arm64/kvm/pvtime.c @@ -55,7 +55,6 @@ gpa_t kvm_init_stolen_time(struct kvm_vcpu *vcpu) struct pvclock_vcpu_stolen_time init_values = {}; struct kvm *kvm = vcpu->kvm; u64 base = vcpu->arch.steal.base; - int idx; if (base == GPA_INVALID) return base; @@ -66,10 +65,7 @@ gpa_t kvm_init_stolen_time(struct kvm_vcpu *vcpu) */ vcpu->arch.steal.steal = 0; vcpu->arch.steal.last_steal = current->sched_info.run_delay; - - idx = srcu_read_lock(&kvm->srcu); - kvm_write_guest(kvm, base, &init_values, sizeof(init_values)); - srcu_read_unlock(&kvm->srcu, idx); + kvm_write_guest_lock(kvm, base, &init_values, sizeof(init_values)); return base; } -- 1.8.3.1