1 files changed, 8 insertions, 7 deletions

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b8731040b9f9..597d371329d3 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -512,19 +512,20 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages)
 
         zone->present_pages += onlined_pages;
         zone->zone_pgdat->node_present_pages += onlined_pages;
-        if (need_zonelists_rebuild)
-                build_all_zonelists(NULL, zone);
-        else
-                zone_pcp_update(zone);
+        if (onlined_pages) {
+                node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
+                if (need_zonelists_rebuild)
+                        build_all_zonelists(NULL, zone);
+                else
+                        zone_pcp_update(zone);
+        }
 
         mutex_unlock(&zonelists_mutex);
 
         init_per_zone_wmark_min();
 
-        if (onlined_pages) {
+        if (onlined_pages)
                 kswapd_run(zone_to_nid(zone));
-                node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
-        }
 
         vm_total_pages = nr_free_pagecache_pages();