diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 2d2f015..489c881 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -267,8 +267,9 @@
 		struct fsnotify_vfsmount_mark m;
 	};
 	struct list_head free_g_list;	/* tmp list used when freeing this mark */
-#define FSNOTIFY_MARK_FLAG_INODE	0x01
-#define FSNOTIFY_MARK_FLAG_VFSMOUNT	0x02
+#define FSNOTIFY_MARK_FLAG_INODE		0x01
+#define FSNOTIFY_MARK_FLAG_VFSMOUNT		0x02
+#define FSNOTIFY_MARK_FLAG_OBJECT_PINNED	0x04
 	unsigned int flags;		/* vfsmount or inode mark? */
 	void (*free_mark)(struct fsnotify_mark *mark); /* called on final put+free */
 };
@@ -372,6 +373,8 @@
 extern struct fsnotify_mark *fsnotify_find_vfsmount_mark(struct fsnotify_group *group, struct vfsmount *mnt);
 /* copy the values from old into new */
 extern void fsnotify_duplicate_mark(struct fsnotify_mark *new, struct fsnotify_mark *old);
+/* set the mask of a mark (might pin the object into memory */
+extern void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask);
 /* attach the mark to both the group and the inode */
 extern int fsnotify_add_mark(struct fsnotify_mark *mark, struct fsnotify_group *group,
 			     struct inode *inode, struct vfsmount *mnt, int allow_dups);