diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index a020eb2..7e9698e 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -19,6 +19,7 @@
 /* Flags for get_mem_policy */
 #define MPOL_F_NODE	(1<<0)	/* return next IL mode instead of node mask */
 #define MPOL_F_ADDR	(1<<1)	/* look up vma using address */
+#define MPOL_F_MEMS_ALLOWED (1<<2) /* return allowed memories */
 
 /* Flags for mbind */
 #define MPOL_MF_STRICT	(1<<0)	/* Verify existing pages in the mapping */