Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935289Ab2JaJRG (ORCPT ); Wed, 31 Oct 2012 05:17:06 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:65222 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S935097Ab2JaJQB (ORCPT ); Wed, 31 Oct 2012 05:16:01 -0400 X-IronPort-AV: E=Sophos;i="4.80,687,1344182400"; d="scan'208";a="6107687" From: Wen Congyang To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org Cc: Rob Landley , Andrew Morton , Yasuaki Ishimatsu , Lai Jiangshan , Jiang Liu , KOSAKI Motohiro , Minchan Kim , Mel Gorman , David Rientjes , Yinghai Lu , "rusty@rustcorp.com.au" Subject: [PART5 Patch 2/5] x86: get pg_data_t's memory from other node Date: Wed, 31 Oct 2012 17:21:40 +0800 Message-Id: <1351675303-11786-3-git-send-email-wency@cn.fujitsu.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1351675303-11786-1-git-send-email-wency@cn.fujitsu.com> References: <1351675303-11786-1-git-send-email-wency@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/31 17:15:14, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/10/31 17:15:15, Serialize complete at 2012/10/31 17:15:15 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1421 Lines: 42 From: Yasuaki Ishimatsu If system can create movable node which all memory of the node is allocated as ZONE_MOVABLE, setup_node_data() cannot allocate memory for the node's pg_data_t. So when memblock_alloc_nid() fails, setup_node_data() retries memblock_alloc(). Signed-off-by: Yasuaki Ishimatsu Signed-off-by: Lai Jiangshan --- arch/x86/mm/numa.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 2d125be..a86e315 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -223,9 +223,13 @@ static void __init setup_node_data(int nid, u64 start, u64 end) remapped = true; } else { nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid); - if (!nd_pa) { - pr_err("Cannot find %zu bytes in node %d\n", + if (!nd_pa) + printk(KERN_WARNING "Cannot find %zu bytes in node %d\n", nd_size, nid); + nd_pa = memblock_alloc(nd_size, SMP_CACHE_BYTES); + if (!nd_pa) { + pr_err("Cannot find %zu bytes in other node\n", + nd_size); return; } nd = __va(nd_pa); -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/