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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 D2D1CCA9EC5 for ; Wed, 30 Oct 2019 15:42:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A8EE1205C9 for ; Wed, 30 Oct 2019 15:42:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727345AbfJ3PmT (ORCPT ); Wed, 30 Oct 2019 11:42:19 -0400 Received: from foss.arm.com ([217.140.110.172]:36638 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726175AbfJ3PmS (ORCPT ); Wed, 30 Oct 2019 11:42:18 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3E2034F5; Wed, 30 Oct 2019 08:42:18 -0700 (PDT) Received: from e107158-lin.cambridge.arm.com (e107158-lin.cambridge.arm.com [10.1.195.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3AF103F6C4; Wed, 30 Oct 2019 08:42:17 -0700 (PDT) From: Qais Yousef To: Thomas Gleixner , Greg Kroah-Hartman Cc: Qais Yousef , Tony Luck , Fenghua Yu , linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 04/12] ia64: Replace cpu_down with freeze_secondary_cpus Date: Wed, 30 Oct 2019 15:38:29 +0000 Message-Id: <20191030153837.18107-5-qais.yousef@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191030153837.18107-1-qais.yousef@arm.com> References: <20191030153837.18107-1-qais.yousef@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use freeze_secondary_cpus() instead of open coding using cpu_down() directly. This also prepares to make cpu_up/down a private interface for anything but the cpu subsystem. Signed-off-by: Qais Yousef CC: Tony Luck CC: Fenghua Yu CC: linux-ia64@vger.kernel.org CC: linux-kernel@vger.kernel.org --- arch/ia64/kernel/process.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 968b5f33e725..70b433eafa5c 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -647,12 +647,8 @@ cpu_halt (void) void machine_shutdown(void) { #ifdef CONFIG_HOTPLUG_CPU - int cpu; - - for_each_online_cpu(cpu) { - if (cpu != smp_processor_id()) - cpu_down(cpu); - } + /* TODO: Can we use disable_nonboot_cpus()? */ + freeze_secondary_cpus(smp_processor_id()); #endif #ifdef CONFIG_KEXEC kexec_disable_iosapic(); -- 2.17.1