diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1127a46..59f953b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1454,6 +1454,7 @@
 
 #define TNF_MIGRATED	0x01
 #define TNF_NO_GROUP	0x02
+#define TNF_SHARED	0x04
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, int flags);