mm/memory_hotplug: use pgdat_end_pfn() instead of open coding the same.

Replace open coded pgdat_end_pfn() with helper function.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 7f7ca1ae2e010e225de36c01dd7e52bf02adcf21..db68c02893e94220bb9dc7473a3d64be66529052 100644 (file)
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -218,7 +218,7 @@ void register_page_bootmem_info_node(struct pglist_data *pgdat)
        }
 
        pfn = pgdat->node_start_pfn;
-       end_pfn = pfn + pgdat->node_spanned_pages;
+       end_pfn = pgdat_end_pfn(pgdat);
 
        /* register_section info */
        for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) {