From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by kanga.kvack.org (Postfix) with ESMTP id 3882982A8B for ; Fri, 11 Jul 2014 03:36:48 -0400 (EDT) Received: by mail-pd0-f169.google.com with SMTP id ft15so945473pdb.14 for ; Fri, 11 Jul 2014 00:36:47 -0700 (PDT) Received: from mga02.intel.com (mga02.intel.com. [134.134.136.20]) by mx.google.com with ESMTP id cf5si1579350pbc.10.2014.07.11.00.36.46 for ; Fri, 11 Jul 2014 00:36:47 -0700 (PDT) From: Jiang Liu Subject: [RFC Patch V1 20/30] mm, fcoe: Use cpu_to_mem()/numa_mem_id() to support memoryless node Date: Fri, 11 Jul 2014 15:37:37 +0800 Message-Id: <1405064267-11678-21-git-send-email-jiang.liu@linux.intel.com> 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> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton , Mel Gorman , David Rientjes , Mike Galbraith , Peter Zijlstra , "Rafael J . Wysocki" , Robert Love , "James E.J. Bottomley" Cc: Jiang Liu , Tony Luck , linux-mm@kvack.org, linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org, fcoe-devel@open-fcoe.org, linux-scsi@vger.kernel.org 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 --- drivers/scsi/fcoe/fcoe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 00ee0ed642aa..779a7af0e410 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -1257,7 +1257,7 @@ static void fcoe_percpu_thread_create(unsigned int cpu) p = &per_cpu(fcoe_percpu, cpu); thread = kthread_create_on_node(fcoe_percpu_receive_thread, - (void *)p, cpu_to_node(cpu), + (void *)p, cpu_to_mem(cpu), "fcoethread/%d", cpu); if (likely(!IS_ERR(thread))) { -- 1.7.10.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org