651 	int		dfd;  member
660 static void __set_nameidata(struct nameidata *p, int dfd, struct filename *name)  in __set_nameidata()  argument
665 	p->dfd = dfd;  in __set_nameidata()
675 static inline void set_nameidata(struct nameidata *p, int dfd, struct filename *name,  in set_nameidata()  argument
678 	__set_nameidata(p, dfd, name);  in set_nameidata()
2541 	/* Absolute pathname -- fetch the root (LOOKUP_IN_ROOT uses nd->dfd). */  in path_init()
2550 	if (nd->dfd == AT_FDCWD) {  in path_init()
2567 		CLASS(fd_raw, f)(nd->dfd);  in path_init()
2657 int filename_lookup(int dfd, struct filename *name, unsigned flags,  in filename_lookup()  argument
2664 	set_nameidata(&nd, dfd, name, root);  in filename_lookup()
2696 static int __filename_parentat(int dfd, struct filename *name,  in __filename_parentat()  argument
2706 	set_nameidata(&nd, dfd, name, root);  in __filename_parentat()
2721 static int filename_parentat(int dfd, struct filename *name,  in filename_parentat()  argument
2725 	return __filename_parentat(dfd, name, flags, parent, last, type, NULL);  in filename_parentat()
2729 static struct dentry *__kern_path_locked(int dfd, struct filename *name, struct path *path)  in __kern_path_locked()  argument
2735 	error = filename_parentat(dfd, name, 0, path, &last, &type);  in __kern_path_locked()
2760 struct dentry *user_path_locked_at(int dfd, const char __user *name, struct path *path)  in user_path_locked_at()  argument
2763 	struct dentry *res = __kern_path_locked(dfd, filename, path);  in user_path_locked_at()
3068 int user_path_at(int dfd, const char __user *name, unsigned flags,  in user_path_at()  argument
3072 	int ret = filename_lookup(dfd, filename, flags, path, NULL);  in user_path_at()
4008 struct file *do_filp_open(int dfd, struct filename *pathname,  in do_filp_open()  argument
4015 	set_nameidata(&nd, dfd, pathname, NULL);  in do_filp_open()
4051 static struct dentry *filename_create(int dfd, struct filename *name,  in filename_create()  argument
4063 	error = filename_parentat(dfd, name, reval_flag, path, &last, &type);  in filename_create()
4119 struct dentry *kern_path_create(int dfd, const char *pathname,  in kern_path_create()  argument
4123 	struct dentry *res = filename_create(dfd, filename, path, lookup_flags);  in kern_path_create()
4139 inline struct dentry *user_path_create(int dfd, const char __user *pathname,  in user_path_create()  argument
4143 	struct dentry *res = filename_create(dfd, filename, path, lookup_flags);  in user_path_create()
4215 static int do_mknodat(int dfd, struct filename *name, umode_t mode,  in do_mknodat()  argument
4228 	dentry = filename_create(dfd, name, &path, lookup_flags);  in do_mknodat()
4266 SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,  in SYSCALL_DEFINE4()  argument
4269 	return do_mknodat(dfd, getname(filename), mode, dev);  in SYSCALL_DEFINE4()
4320 int do_mkdirat(int dfd, struct filename *name, umode_t mode)  in do_mkdirat()  argument
4328 	dentry = filename_create(dfd, name, &path, lookup_flags);  in do_mkdirat()
4349 SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)  in SYSCALL_DEFINE3()  argument
4351 	return do_mkdirat(dfd, getname(pathname), mode);  in SYSCALL_DEFINE3()
4414 int do_rmdir(int dfd, struct filename *name)  in do_rmdir()  argument
4423 	error = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);  in do_rmdir()
4553 int do_unlinkat(int dfd, struct filename *name)  in do_unlinkat()  argument
4564 	error = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);  in do_unlinkat()
4625 SYSCALL_DEFINE3(unlinkat, int, dfd, const char __user *, pathname, int, flag)  in SYSCALL_DEFINE3()  argument
4631 		return do_rmdir(dfd, getname(pathname));  in SYSCALL_DEFINE3()
4632 	return do_unlinkat(dfd, getname(pathname));  in SYSCALL_DEFINE3()
4835 	 * that the open-time creds of the dfd matches current.  in do_linkat()