[PATCH] Fix calculation of grow_pgdat_span() in mm/memory_hotplug.c
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.)
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 431a64f..f6d4af8 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -104,7 +104,7 @@
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)
