diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 8352a7c..32a4139 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -182,7 +182,8 @@
 	VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
 	VM_DROP_PAGECACHE=29,	/* int: nuke lots of pagecache */
 	VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
-	VM_ZONE_RECLAIM_MODE=31,/* reclaim local zone memory before going off node */
+	VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
+	VM_ZONE_RECLAIM_INTERVAL=32, /* time period to wait after reclaim failure */
 };