-#define MNT_SHARED 0x10 /* if the vfsmount is a shared mount */
-#define MNT_PNODE_MASK 0x30 /* propogation flag mask */
+#define MNT_NOATIME 0x08
+#define MNT_NODIRATIME 0x10
+#define MNT_RELATIME 0x20
+
+#define MNT_SHRINKABLE 0x100
+
+#define MNT_SHARED 0x1000 /* if the vfsmount is a shared mount */
+#define MNT_UNBINDABLE 0x2000 /* if the vfsmount is a unbindable mount */
+#define MNT_PNODE_MASK 0x3000 /* propagation flag mask */