From patchwork Fri Jul 11 07:37:38 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 4531311 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0A7D89F4F5 for ; Fri, 11 Jul 2014 07:39:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3A4CB201D5 for ; Fri, 11 Jul 2014 07:39:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AE701201B9 for ; Fri, 11 Jul 2014 07:39:29 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X5VON-0006R6-LG; Fri, 11 Jul 2014 07:37:15 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X5VOJ-0006HU-7K for linux-arm-kernel@lists.infradead.org; Fri, 11 Jul 2014 07:37:11 +0000 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 11 Jul 2014 00:36:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,642,1400050800"; d="scan'208";a="571589835" Received: from gerry-dev.bj.intel.com ([10.238.158.74]) by orsmga002.jf.intel.com with ESMTP; 11 Jul 2014 00:36:46 -0700 From: Jiang Liu To: Andrew Morton , Mel Gorman , David Rientjes , Mike Galbraith , Peter Zijlstra , "Rafael J . Wysocki" , Thomas Gleixner , Jason Cooper , Alexander Shiyan Subject: [RFC Patch V1 21/30] mm, irqchip: Use cpu_to_mem()/numa_mem_id() to support memoryless node Date: Fri, 11 Jul 2014 15:37:38 +0800 Message-Id: <1405064267-11678-22-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1405064267-11678-1-git-send-email-jiang.liu@linux.intel.com> References: <1405064267-11678-1-git-send-email-jiang.liu@linux.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140711_003711_300933_24498985 X-CRM114-Status: GOOD ( 14.46 ) X-Spam-Score: -5.7 (-----) Cc: Tony Luck , linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jiang Liu , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,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 When CONFIG_HAVE_MEMORYLESS_NODES is enabled, cpu_to_node()/numa_node_id() may return a node without memory, and later cause system failure/panic when calling kmalloc_node() and friends with returned node id. So use cpu_to_mem()/numa_mem_id() instead to get the nearest node with memory for the/current cpu. If CONFIG_HAVE_MEMORYLESS_NODES is disabled, cpu_to_mem()/numa_mem_id() is the same as cpu_to_node()/numa_node_id(). Signed-off-by: Jiang Liu Acked-by: Jason Cooper --- drivers/irqchip/irq-clps711x.c | 2 +- drivers/irqchip/irq-gic.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-clps711x.c b/drivers/irqchip/irq-clps711x.c index 33340dc97d1d..b0acf8b32a1a 100644 --- a/drivers/irqchip/irq-clps711x.c +++ b/drivers/irqchip/irq-clps711x.c @@ -186,7 +186,7 @@ static int __init _clps711x_intc_init(struct device_node *np, writel_relaxed(0, clps711x_intc->intmr[1]); writel_relaxed(0, clps711x_intc->intmr[2]); - err = irq_alloc_descs(-1, 0, ARRAY_SIZE(clps711x_irqs), numa_node_id()); + err = irq_alloc_descs(-1, 0, ARRAY_SIZE(clps711x_irqs), numa_mem_id()); if (IS_ERR_VALUE(err)) goto out_iounmap; diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 7e11c9d6ae8c..a7e6c043d823 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -1005,7 +1005,7 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start, if (of_property_read_u32(node, "arm,routable-irqs", &nr_routable_irqs)) { irq_base = irq_alloc_descs(irq_start, 16, gic_irqs, - numa_node_id()); + numa_mem_id()); if (IS_ERR_VALUE(irq_base)) { WARN(1, "Cannot allocate irq_descs @ IRQ%d, assuming pre-allocated\n", irq_start);