Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755810Ab2HFJZq (ORCPT ); Mon, 6 Aug 2012 05:25:46 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:42441 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755757Ab2HFJYI (ORCPT ); Mon, 6 Aug 2012 05:24:08 -0400 X-IronPort-AV: E=Sophos;i="4.77,719,1336320000"; d="scan'208";a="5560153" From: Lai Jiangshan To: Mel Gorman , linux-kernel@vger.kernel.org Cc: Yasuaki Ishimatsu , Lai Jiangshan , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Andrew Morton , Rusty Russell , Bjorn Helgaas Subject: [RFC V3 PATCH 21/25] x86: get pg_data_t's memory from other node Date: Mon, 6 Aug 2012 17:23:15 +0800 Message-Id: <1344244999-5081-22-git-send-email-laijs@cn.fujitsu.com> X-Mailer: git-send-email 1.7.4.4 In-Reply-To: <1344244999-5081-1-git-send-email-laijs@cn.fujitsu.com> References: <1343887288-8866-1-git-send-email-laijs@cn.fujitsu.com> <1344244999-5081-1-git-send-email-laijs@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/06 17:24:31, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/06 17:24:32, Serialize complete at 2012/08/06 17:24:32 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1427 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 files 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); -- 1.7.4.4 -- 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/