From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933724AbZHWMAz (ORCPT ); Sun, 23 Aug 2009 08:00:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933697AbZHWMA2 (ORCPT ); Sun, 23 Aug 2009 08:00:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:11057 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933545AbZHWL4u (ORCPT ); Sun, 23 Aug 2009 07:56:50 -0400 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 35/46] KVM: Drop obsolete cpu_get/put in make_all_cpus_request Date: Sun, 23 Aug 2009 14:56:34 +0300 Message-Id: <1251028605-31977-36-git-send-email-avi@redhat.com> In-Reply-To: <1251028605-31977-1-git-send-email-avi@redhat.com> References: <1251028605-31977-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jan Kiszka spin_lock disables preemption, so we can simply read the current cpu. Signed-off-by: Jan Kiszka Signed-off-by: Marcelo Tosatti --- virt/kvm/kvm_main.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 532af9b..646cf2a 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -741,8 +741,8 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned int req) if (alloc_cpumask_var(&cpus, GFP_ATOMIC)) cpumask_clear(cpus); - me = get_cpu(); spin_lock(&kvm->requests_lock); + me = smp_processor_id(); kvm_for_each_vcpu(i, vcpu, kvm) { if (test_and_set_bit(req, &vcpu->requests)) continue; @@ -757,7 +757,6 @@ static bool make_all_cpus_request(struct kvm *kvm, unsigned int req) else called = false; spin_unlock(&kvm->requests_lock); - put_cpu(); free_cpumask_var(cpus); return called; } -- 1.6.4.1