[Patch] Fix calculation of grow_pgdat_span() in mm/memory_hotplug.c
From: Yasunori Goto
Date: Tue Dec 13 2005 - 08:21:24 EST
Dave-san.
CC: Andrew-san.
I realized 2.6.15-rc5 still has a bug for memory hotplug.
The calculation for node_spanned_pages at grow_pgdat_span() is
clearly wrong. This is patch for it.
(Please see grow_zone_span() to compare. It is correct.)
Thanks.
Signed-off-by: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
Index: zone_reclaim/mm/memory_hotplug.c
===================================================================
--- zone_reclaim.orig/mm/memory_hotplug.c 2005-12-13 21:38:16.000000000 +0900
+++ zone_reclaim/mm/memory_hotplug.c 2005-12-13 21:39:14.000000000 +0900
@@ -104,7 +104,7 @@ static void grow_pgdat_span(struct pglis
pgdat->node_start_pfn = start_pfn;
if (end_pfn > old_pgdat_end_pfn)
- pgdat->node_spanned_pages = end_pfn - pgdat->node_spanned_pages;
+ pgdat->node_spanned_pages = end_pfn - pgdat->node_start_pfn;
}
int online_pages(unsigned long pfn, unsigned long nr_pages)
--
Yasunori Goto
-
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