490 struct nameidata {  struct
507 	struct nameidata *saved;  argument
513 static void set_nameidata(struct nameidata *p, int dfd, struct filename *name)  in set_nameidata()  argument
515 	struct nameidata *old = current->nameidata;  in set_nameidata()
521 	current->nameidata = p;  in set_nameidata()
526 	struct nameidata *now = current->nameidata, *old = now->saved;  in restore_nameidata()
528 	current->nameidata = old;  in restore_nameidata()
535 static int __nd_alloc_stack(struct nameidata *nd)  in __nd_alloc_stack()
574 static inline int nd_alloc_stack(struct nameidata *nd)  in nd_alloc_stack()
583 static void drop_links(struct nameidata *nd)  in drop_links()
593 static void terminate_walk(struct nameidata *nd)  in terminate_walk()
615 static bool legitimize_path(struct nameidata *nd,  in legitimize_path()
632 static bool legitimize_links(struct nameidata *nd)  in legitimize_links()
668 static int unlazy_walk(struct nameidata *nd)  in unlazy_walk()
711 static int unlazy_child(struct nameidata *nd, struct dentry *dentry, unsigned seq)  in unlazy_child()
782 static int complete_walk(struct nameidata *nd)  in complete_walk()
810 static void set_root(struct nameidata *nd)  in set_root()
827 static void path_put_conditional(struct path *path, struct nameidata *nd)  in path_put_conditional()
835 					struct nameidata *nd)  in path_to_nameidata()
846 static int nd_jump_root(struct nameidata *nd)  in nd_jump_root()
872 	struct nameidata *nd = current->nameidata;  in nd_jump_link()
880 static inline void put_link(struct nameidata *nd)  in put_link()
908 static inline int may_follow_link(struct nameidata *nd)  in may_follow_link()
1048 const char *get_link(struct nameidata *nd)  in get_link()
1140 static int follow_automount(struct path *path, struct nameidata *nd,  in follow_automount()
1220 static int follow_managed(struct path *path, struct nameidata *nd)  in follow_managed()
1311 static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,  in __follow_mount_rcu()
1351 static int follow_dotdot_rcu(struct nameidata *nd)  in follow_dotdot_rcu()
1481 static int follow_dotdot(struct nameidata *nd)  in follow_dotdot()
1554 static int lookup_fast(struct nameidata *nd,  in lookup_fast()
1693 static inline int may_lookup(struct nameidata *nd)  in may_lookup()
1705 static inline int handle_dots(struct nameidata *nd, int type)  in handle_dots()
1718 static int pick_link(struct nameidata *nd, struct path *link,  in pick_link()
1768 static inline int step_into(struct nameidata *nd, struct path *path,  in step_into()
1789 static int walk_component(struct nameidata *nd, int flags)  in walk_component()
2068 static int link_path_walk(const char *name, struct nameidata *nd)  in link_path_walk()
2172 static const char *path_init(struct nameidata *nd, unsigned flags)  in path_init()
2255 static const char *trailing_symlink(struct nameidata *nd)  in trailing_symlink()
2267 static inline int lookup_last(struct nameidata *nd)  in lookup_last()
2276 static int handle_lookup_down(struct nameidata *nd)  in handle_lookup_down()
2306 static int path_lookupat(struct nameidata *nd, unsigned flags, struct path *path)  in path_lookupat()
2340 	struct nameidata nd;  in filename_lookup()
2362 static int path_parentat(struct nameidata *nd, unsigned flags,  in path_parentat()
2383 	struct nameidata nd;  in filename_parentat()
2637 mountpoint_last(struct nameidata *nd)  in mountpoint_last()
2689 path_mountpoint(struct nameidata *nd, unsigned flags, struct path *path)  in path_mountpoint()
2712 	struct nameidata nd;  in filename_mountpoint()
3055 static int atomic_open(struct nameidata *nd, struct dentry *dentry,  in atomic_open()
3127 static int lookup_open(struct nameidata *nd, struct path *path,  in lookup_open()
3257 static int do_last(struct nameidata *nd,  in do_last()
3473 static int do_tmpfile(struct nameidata *nd, unsigned flags,  in do_tmpfile()
3505 static int do_o_path(struct nameidata *nd, unsigned flags, struct file *file)  in do_o_path()
3517 static struct file *path_openat(struct nameidata *nd,  in path_openat()
3559 	struct nameidata nd;  in do_filp_open()
3576 	struct nameidata nd;  in do_file_open_root()