From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Date: Mon, 17 Aug 2015 03:19:00 +0000 Subject: [Patch V3 3/9] sgi-xp: Replace cpu_to_node() with cpu_to_mem() to support memoryless node Message-Id: <1439781546-7217-4-git-send-email-jiang.liu@linux.intel.com> List-Id: References: <1439781546-7217-1-git-send-email-jiang.liu@linux.intel.com> In-Reply-To: <1439781546-7217-1-git-send-email-jiang.liu@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andrew Morton , Mel Gorman , David Rientjes , Mike Galbraith , Peter Zijlstra , "Rafael J . Wysocki" , Tang Chen , Tejun Heo , Cliff Whickman , Robin Holt Cc: Jiang Liu , Tony Luck , linux-mm@kvack.org, linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org Function xpc_create_gru_mq_uv() allocates memory with __GFP_THISNODE flag set, which may cause permanent memory allocation failure on memoryless node. So replace cpu_to_node() with cpu_to_mem() to better support memoryless node. For node with memory, cpu_to_mem() is the same as cpu_to_node(). Signed-off-by: Jiang Liu --- drivers/misc/sgi-xp/xpc_uv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 95c894482fdd..9210981c0d5b 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -238,7 +238,7 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name, mq->mmr_blade = uv_cpu_to_blade_id(cpu); - nid = cpu_to_node(cpu); + nid = cpu_to_mem(cpu); page = alloc_pages_exact_node(nid, GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, pg_order); -- 1.7.10.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by kanga.kvack.org (Postfix) with ESMTP id 5D637280244 for ; Sun, 16 Aug 2015 23:16:07 -0400 (EDT) Received: by pabyb7 with SMTP id yb7so98426307pab.0 for ; Sun, 16 Aug 2015 20:16:07 -0700 (PDT) Received: from mga11.intel.com (mga11.intel.com. [192.55.52.93]) by mx.google.com with ESMTP id dn2si22343750pdb.103.2015.08.16.20.16.06 for ; Sun, 16 Aug 2015 20:16:06 -0700 (PDT) From: Jiang Liu Subject: [Patch V3 3/9] sgi-xp: Replace cpu_to_node() with cpu_to_mem() to support memoryless node Date: Mon, 17 Aug 2015 11:19:00 +0800 Message-Id: <1439781546-7217-4-git-send-email-jiang.liu@linux.intel.com> In-Reply-To: <1439781546-7217-1-git-send-email-jiang.liu@linux.intel.com> References: <1439781546-7217-1-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" , Tang Chen , Tejun Heo , Cliff Whickman , Robin Holt Cc: Jiang Liu , Tony Luck , linux-mm@kvack.org, linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org Function xpc_create_gru_mq_uv() allocates memory with __GFP_THISNODE flag set, which may cause permanent memory allocation failure on memoryless node. So replace cpu_to_node() with cpu_to_mem() to better support memoryless node. For node with memory, cpu_to_mem() is the same as cpu_to_node(). Signed-off-by: Jiang Liu --- drivers/misc/sgi-xp/xpc_uv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 95c894482fdd..9210981c0d5b 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -238,7 +238,7 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name, mq->mmr_blade = uv_cpu_to_blade_id(cpu); - nid = cpu_to_node(cpu); + nid = cpu_to_mem(cpu); page = alloc_pages_exact_node(nid, GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, pg_order); -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751990AbbHQDQa (ORCPT ); Sun, 16 Aug 2015 23:16:30 -0400 Received: from mga09.intel.com ([134.134.136.24]:11175 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751325AbbHQDQG (ORCPT ); Sun, 16 Aug 2015 23:16:06 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,692,1432623600"; d="scan'208";a="543143401" From: Jiang Liu To: Andrew Morton , Mel Gorman , David Rientjes , Mike Galbraith , Peter Zijlstra , "Rafael J . Wysocki" , Tang Chen , Tejun Heo , Cliff Whickman , Robin Holt Cc: Jiang Liu , Tony Luck , linux-mm@kvack.org, linux-hotplug@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org Subject: [Patch V3 3/9] sgi-xp: Replace cpu_to_node() with cpu_to_mem() to support memoryless node Date: Mon, 17 Aug 2015 11:19:00 +0800 Message-Id: <1439781546-7217-4-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1439781546-7217-1-git-send-email-jiang.liu@linux.intel.com> References: <1439781546-7217-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Function xpc_create_gru_mq_uv() allocates memory with __GFP_THISNODE flag set, which may cause permanent memory allocation failure on memoryless node. So replace cpu_to_node() with cpu_to_mem() to better support memoryless node. For node with memory, cpu_to_mem() is the same as cpu_to_node(). Signed-off-by: Jiang Liu --- drivers/misc/sgi-xp/xpc_uv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 95c894482fdd..9210981c0d5b 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -238,7 +238,7 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name, mq->mmr_blade = uv_cpu_to_blade_id(cpu); - nid = cpu_to_node(cpu); + nid = cpu_to_mem(cpu); page = alloc_pages_exact_node(nid, GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, pg_order); -- 1.7.10.4