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Commit f2937be5 authored by Yasunori Goto's avatar Yasunori Goto Committed by Linus Torvalds
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[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: default avatarYasunori Goto <y-goto@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 57c432b5

mm/memory_hotplug.c

+1 −0
Original line number Diff line number Diff line
@@ -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();