linux-kernel - [Bug fix PATCH 2/2] acpi, movablemem_map: Set numa_nodes

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Date:	Tue, 19 Feb 2013 21:01:44 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	akpm@...ux-foundation.org, jiang.liu@...wei.com,
	wujianguo@...wei.com, hpa@...or.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, linfeng@...fujitsu.com, yinghai@...nel.org,
	isimatu.yasuaki@...fujitsu.com, rob@...dley.net,
	kosaki.motohiro@...fujitsu.com, minchan.kim@...il.com,
	mgorman@...e.de, rientjes@...gle.com, guz.fnst@...fujitsu.com,
	rusty@...tcorp.com.au, lliubbo@...il.com, jaegeuk.hanse@...il.com,
	tony.luck@...el.com, glommer@...allels.com
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [Bug fix PATCH 2/2] acpi, movablemem_map: Set numa_nodes_hotplug nodemask when using SRAT info.

We should also set movablemem_map.numa_nodes_hotplug nodemask when we
insert a hot-pluggable range in SRAT into movablemem_map.map[].

Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
---
 arch/x86/mm/srat.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index b20b5b7..62ba97b 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -164,6 +164,12 @@ handle_movablemem(int node, u64 start, u64 end, u32 hotpluggable)
 	 */
 	if (hotpluggable && movablemem_map.acpi) {
 		insert_movablemem_map(start_pfn, end_pfn);
+
+		/*
+		 * numa_nodes_hotplug nodemask represents which nodes are put
+		 * into movablemem_map.map[].
+		 */
+		node_set(node, movablemem_map.numa_nodes_hotplug);
 		goto out;
 	}
 
-- 
1.7.1

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