From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx190.postini.com [74.125.245.190]) by kanga.kvack.org (Postfix) with SMTP id 3588F6B0073 for ; Mon, 19 Nov 2012 10:49:35 -0500 (EST) From: Tang Chen Subject: [PATCH 1/5] x86: Get pg_data_t's memory from other node Date: Mon, 19 Nov 2012 22:27:22 +0800 Message-Id: <1353335246-9127-2-git-send-email-tangchen@cn.fujitsu.com> In-Reply-To: <1353335246-9127-1-git-send-email-tangchen@cn.fujitsu.com> References: <1353335246-9127-1-git-send-email-tangchen@cn.fujitsu.com> Sender: owner-linux-mm@kvack.org List-ID: To: tangchen@cn.fujitsu.com, wency@cn.fujitsu.com, linfeng@cn.fujitsu.com, rob@landley.net, akpm@linux-foundation.org, isimatu.yasuaki@jp.fujitsu.com, laijs@cn.fujitsu.com, jiang.liu@huawei.com, kosaki.motohiro@jp.fujitsu.com, minchan.kim@gmail.com, mgorman@suse.de, rientjes@google.com, yinghai@kernel.org, rusty@rustcorp.com.au Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org 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 Signed-off-by: Tang Chen Reviewed-by: Wen Congyang Tested-by: Lin Feng --- arch/x86/mm/numa.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 2d125be..ae2e76e 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -224,9 +224,14 @@ static void __init setup_node_data(int nid, u64 start, u64 end) } 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", + printk(KERN_WARNING "Cannot find %zu bytes in node %d\n", nd_size, nid); - return; + 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); } -- 1.7.1 -- 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