631 struct nameidata {  struct
649 	struct nameidata *saved;  argument
660 static void __set_nameidata(struct nameidata *p, int dfd, struct filename *name)  in __set_nameidata()  argument
662 	struct nameidata *old = current->nameidata;  in __set_nameidata()
672 	current->nameidata = p;  in __set_nameidata()
675 static inline void set_nameidata(struct nameidata *p, int dfd, struct filename *name,  in set_nameidata()
688 	struct nameidata *now = current->nameidata, *old = now->saved;  in restore_nameidata()
690 	current->nameidata = old;  in restore_nameidata()
697 static bool nd_alloc_stack(struct nameidata *nd)  in nd_alloc_stack()
729 static void drop_links(struct nameidata *nd)  in drop_links()
739 static void leave_rcu(struct nameidata *nd)  in leave_rcu()
746 static void terminate_walk(struct nameidata *nd)  in terminate_walk()
783 static inline bool legitimize_path(struct nameidata *nd,  in legitimize_path()
789 static bool legitimize_links(struct nameidata *nd)  in legitimize_links()
808 static bool legitimize_root(struct nameidata *nd)  in legitimize_root()
839 static bool try_to_unlazy(struct nameidata *nd)  in try_to_unlazy()
875 static bool try_to_unlazy_next(struct nameidata *nd, struct dentry *dentry)  in try_to_unlazy_next()
943 static int complete_walk(struct nameidata *nd)  in complete_walk()
998 static int set_root(struct nameidata *nd)  in set_root()
1025 static int nd_jump_root(struct nameidata *nd)  in nd_jump_root()
1064 	struct nameidata *nd = current->nameidata;  in nd_jump_link()
1089 static inline void put_link(struct nameidata *nd)  in put_link()
1167 static inline int may_follow_link(struct nameidata *nd, const struct inode *inode)  in may_follow_link()
1303 static int may_create_in_sticky(struct mnt_idmap *idmap, struct nameidata *nd,  in may_create_in_sticky()
1568 static bool __follow_mount_rcu(struct nameidata *nd, struct path *path)  in __follow_mount_rcu()
1612 static inline int handle_mounts(struct nameidata *nd, struct dentry *dentry,  in handle_mounts()
1716 static struct dentry *lookup_fast(struct nameidata *nd)  in lookup_fast()
1816 			     struct nameidata *restrict nd)  in may_lookup()
1839 static int reserve_stack(struct nameidata *nd, struct path *link)  in reserve_stack()
1867 static const char *pick_link(struct nameidata *nd, struct path *link,  in pick_link()
1947 static const char *step_into(struct nameidata *nd, int flags,  in step_into()
1987 static struct dentry *follow_dotdot_rcu(struct nameidata *nd)  in follow_dotdot_rcu()
2027 static struct dentry *follow_dotdot(struct nameidata *nd)  in follow_dotdot()
2059 static const char *handle_dots(struct nameidata *nd, int type)  in handle_dots()
2097 static const char *walk_component(struct nameidata *nd, int flags)  in walk_component()
2278 static inline const char *hash_name(struct nameidata *nd,  in hash_name()
2367 static inline const char *hash_name(struct nameidata *nd, const char *name, unsigned long *lastword)  in hash_name()
2404 static int link_path_walk(const char *name, struct nameidata *nd)  in link_path_walk()
2500 static const char *path_init(struct nameidata *nd, unsigned flags)  in path_init()
2607 static inline const char *lookup_last(struct nameidata *nd)  in lookup_last()
2615 static int handle_lookup_down(struct nameidata *nd)  in handle_lookup_down()
2624 static int path_lookupat(struct nameidata *nd, unsigned flags, struct path *path)  in path_lookupat()
2661 	struct nameidata nd;  in filename_lookup()
2679 static int path_parentat(struct nameidata *nd, unsigned flags,  in path_parentat()
2702 	struct nameidata nd;  in __filename_parentat()
3498 static struct dentry *atomic_open(struct nameidata *nd, struct dentry *dentry,  in atomic_open()
3553 static struct dentry *lookup_open(struct nameidata *nd, struct file *file,  in lookup_open()
3667 static inline bool trailing_slashes(struct nameidata *nd)  in trailing_slashes()
3672 static struct dentry *lookup_fast_for_open(struct nameidata *nd, int open_flag)  in lookup_fast_for_open()
3703 static const char *open_last_lookups(struct nameidata *nd,  in open_last_lookups()
3786 static int do_open(struct nameidata *nd,  in do_open()
3934 static int do_tmpfile(struct nameidata *nd, unsigned flags,  in do_tmpfile()
3957 static int do_o_path(struct nameidata *nd, unsigned flags, struct file *file)  in do_o_path()
3969 static struct file *path_openat(struct nameidata *nd,  in path_openat()
4011 	struct nameidata nd;  in do_filp_open()
4028 	struct nameidata nd;  in do_file_open_root()