diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 4cd267f..7f47212 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -181,6 +181,7 @@
 	VM_LEGACY_VA_LAYOUT=27, /* legacy/compatibility virtual address space layout */
 	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 */
 };