diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 70ea0dfc3a5..f8cf37d350f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -466,6 +466,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages)
 
 	zone->present_pages += onlined_pages;
 	zone->zone_pgdat->node_present_pages += onlined_pages;
+	drain_all_pages();
 	if (need_zonelists_rebuild)
 		build_all_zonelists(zone);
 	else