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-rw-r--r--mm/memory_hotplug.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b8467faf2f69..04f01fabc150 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -829,6 +829,16 @@ struct zone * zone_for_pfn_range(int online_type, int nid, unsigned start_pfn,
return default_zone_for_pfn(nid, start_pfn, nr_pages);
}
+static void adjust_present_page_count(struct zone *zone, long nr_pages)
+{
+ unsigned long flags;
+
+ zone->present_pages += nr_pages;
+ pgdat_resize_lock(zone->zone_pgdat, &flags);
+ zone->zone_pgdat->node_present_pages += nr_pages;
+ pgdat_resize_unlock(zone->zone_pgdat, &flags);
+}
+
int __ref online_pages(unsigned long pfn, unsigned long nr_pages,
int online_type, int nid)
{
@@ -884,11 +894,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages,
}
online_pages_range(pfn, nr_pages);
- zone->present_pages += nr_pages;
-
- pgdat_resize_lock(zone->zone_pgdat, &flags);
- zone->zone_pgdat->node_present_pages += nr_pages;
- pgdat_resize_unlock(zone->zone_pgdat, &flags);
+ adjust_present_page_count(zone, nr_pages);
node_states_set_node(nid, &arg);
if (need_zonelists_rebuild)
@@ -1706,11 +1712,7 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages)
/* removal success */
adjust_managed_page_count(pfn_to_page(start_pfn), -nr_pages);
- zone->present_pages -= nr_pages;
-
- pgdat_resize_lock(zone->zone_pgdat, &flags);
- zone->zone_pgdat->node_present_pages -= nr_pages;
- pgdat_resize_unlock(zone->zone_pgdat, &flags);
+ adjust_present_page_count(zone, -nr_pages);
init_per_zone_wmark_min();