diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 70ea0df..f8cf37d 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -466,6 +466,7 @@
 
 	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