From patchwork Wed Jun 3 03:46:22 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 6531981 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AFE13C0020 for ; Wed, 3 Jun 2015 03:44:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7C2AC2069F for ; Wed, 3 Jun 2015 03:44:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 79B39206A7 for ; Wed, 3 Jun 2015 03:44:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751739AbbFCDoz (ORCPT ); Tue, 2 Jun 2015 23:44:55 -0400 Received: from mga09.intel.com ([134.134.136.24]:30357 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751673AbbFCDoy (ORCPT ); Tue, 2 Jun 2015 23:44:54 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP; 02 Jun 2015 20:44:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,544,1427785200"; d="scan'208";a="719763373" Received: from gerry-dev.bj.intel.com ([10.238.158.61]) by fmsmga001.fm.intel.com with ESMTP; 02 Jun 2015 20:44:47 -0700 From: Jiang Liu To: Thomas Gleixner , Bjorn Helgaas , Benjamin Herrenschmidt , Ingo Molnar , "H. Peter Anvin" , Randy Dunlap , Yinghai Lu , Borislav Petkov , x86@kernel.org, Konrad Rzeszutek Wilk , Boris Ostrovsky , David Vrabel , Jiang Liu , Feng Wu , Rasmus Villemoes , Brian Gerst , Rusty Russell , Juergen Gross Cc: Tony Luck , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, Ingo Molnar , xen-devel@lists.xenproject.org Subject: [Patch v3 27/36] x86, irq: Use access helper irq_data_get_affinity_mask() Date: Wed, 3 Jun 2015 11:46:22 +0800 Message-Id: <1433303201-27625-1-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use access helper irq_data_get_affinity_mask() to hide implementation details of struct irq_desc. Signed-off-by: Jiang Liu --- Hi Thomas, This version changes the patch to correctly support bisecting. Thanks! Gerry --- arch/x86/kernel/apic/io_apic.c | 2 +- arch/x86/kernel/apic/vector.c | 3 ++- arch/x86/kernel/irq.c | 5 +++-- drivers/xen/events/events_base.c | 4 ++-- 4 files changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 845dc0df2002..09921de4210f 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2541,7 +2541,7 @@ void __init setup_ioapic_dest(void) * Honour affinities which have been set in early boot */ if (!irqd_can_balance(idata) || irqd_affinity_was_set(idata)) - mask = idata->affinity; + mask = irq_data_get_affinity_mask(idata); else mask = apic->target_cpus(); diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 9b62f690b0ff..7ad911ea4f56 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -496,7 +496,8 @@ static int apic_set_affinity(struct irq_data *irq_data, if (err) { struct irq_data *top = irq_get_irq_data(irq); - if (assign_irq_vector(irq, data, top->affinity)) + if (assign_irq_vector(irq, data, + irq_data_get_affinity_mask(top))) pr_err("Failed to recover vector for irq %d\n", irq); return err; } diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 7e10c8b4b318..37685e37550c 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -342,7 +342,8 @@ int check_irq_vectors_for_cpu_disable(void) continue; data = irq_desc_get_irq_data(desc); - cpumask_copy(&affinity_new, data->affinity); + cpumask_copy(&affinity_new, + irq_data_get_affinity_mask(data)); cpumask_clear_cpu(this_cpu, &affinity_new); /* Do not count inactive or per-cpu irqs. */ @@ -420,7 +421,7 @@ void fixup_irqs(void) raw_spin_lock(&desc->lock); data = irq_desc_get_irq_data(desc); - affinity = data->affinity; + affinity = irq_data_get_affinity_mask(data); if (!irq_has_action(irq) || irqd_is_per_cpu(data) || cpumask_subset(affinity, cpu_online_mask)) { raw_spin_unlock(&desc->lock); diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 2b8553bd8715..d00e0be8e9ea 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -336,7 +336,7 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu) BUG_ON(irq == -1); #ifdef CONFIG_SMP - cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(cpu)); + cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(cpu)); #endif xen_evtchn_port_bind_to_cpu(info, cpu); @@ -373,7 +373,7 @@ static void xen_irq_init(unsigned irq) struct irq_info *info; #ifdef CONFIG_SMP /* By default all event channels notify CPU#0. */ - cpumask_copy(irq_get_irq_data(irq)->affinity, cpumask_of(0)); + cpumask_copy(irq_get_affinity_mask(irq), cpumask_of(0)); #endif info = kzalloc(sizeof(*info), GFP_KERNEL);