extern void umount_tree(struct vfsmount *, int, struct list_head *);
extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
extern int finish_automount(struct vfsmount *, struct path *);
-extern int do_add_mount(struct vfsmount *, struct path *, int);
-extern void mnt_clear_expiry(struct vfsmount *);
extern void mnt_make_longterm(struct vfsmount *);
extern void mnt_make_shortterm(struct vfsmount *);