From f2937be5895dbae23ff66767a2fc17793e63159c Mon Sep 17 00:00:00 2001
From: Yasunori Goto <y-goto@jp.fujitsu.com>
Date: Thu, 9 Mar 2006 17:33:51 -0800
Subject: [PATCH] memory hotadd: pgdat->node_present_pages fix

When pages are onlined, not only zone->present_pages but also
pgdat->node_present_pages should be refreshed.

This parameter is used to show information at
/sys/device/system/node/nodeX/meminfo via si_meminfo_node().

So, it shows strange value for MemUsed which is calculated
(node_present_pages - all zones free pages).

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/memory_hotplug.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'mm')

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index a918f77f02f..1fe76d963ac 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -130,6 +130,7 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
 		onlined_pages++;
 	}
 	zone->present_pages += onlined_pages;
+	zone->zone_pgdat->node_present_pages += onlined_pages;
 
 	setup_per_zone_pages_min();
 
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