524 	int		dfd;  member
529 static void set_nameidata(struct nameidata *p, int dfd, struct filename *name)  in set_nameidata()  argument
533 	p->dfd = dfd;  in set_nameidata()
661 	 * for these lookups (nd->dfd is the root, not the filesystem root).  in legitimize_root()
2335 	/* Absolute pathname -- fetch the root (LOOKUP_IN_ROOT uses nd->dfd). */  in path_init()
2344 	if (nd->dfd == AT_FDCWD) {  in path_init()
2361 		struct fd f = fdget_raw(nd->dfd);  in path_init()
2448 int filename_lookup(int dfd, struct filename *name, unsigned flags,  in filename_lookup()  argument
2459 	set_nameidata(&nd, dfd, name);  in filename_lookup()
2491 static struct filename *filename_parentat(int dfd, struct filename *name,  in filename_parentat()  argument
2500 	set_nameidata(&nd, dfd, name);  in filename_parentat()
2737 int user_path_at_empty(int dfd, const char __user *name, unsigned flags,  in user_path_at_empty()  argument
2740 	return filename_lookup(dfd, getname_flags(name, flags, empty),  in user_path_at_empty()
3479 struct file *do_filp_open(int dfd, struct filename *pathname,  in do_filp_open()  argument
3486 	set_nameidata(&nd, dfd, pathname);  in do_filp_open()
3525 static struct dentry *filename_create(int dfd, struct filename *name,  in filename_create()  argument
3541 	name = filename_parentat(dfd, name, lookup_flags, path, &last, &type);  in filename_create()
3596 struct dentry *kern_path_create(int dfd, const char *pathname,  in kern_path_create()  argument
3599 	return filename_create(dfd, getname_kernel(pathname),  in kern_path_create()
3613 inline struct dentry *user_path_create(int dfd, const char __user *pathname,  in user_path_create()  argument
3616 	return filename_create(dfd, getname(pathname), path, lookup_flags);  in user_path_create()
3667 static long do_mknodat(int dfd, const char __user *filename, umode_t mode,  in do_mknodat()  argument
3679 	dentry = user_path_create(dfd, filename, &path, lookup_flags);  in do_mknodat()
3711 SYSCALL_DEFINE4(mknodat, int, dfd, const char __user *, filename, umode_t, mode,  in SYSCALL_DEFINE4()  argument
3714 	return do_mknodat(dfd, filename, mode, dev);  in SYSCALL_DEFINE4()
3748 static long do_mkdirat(int dfd, const char __user *pathname, umode_t mode)  in do_mkdirat()  argument
3756 	dentry = user_path_create(dfd, pathname, &path, lookup_flags);  in do_mkdirat()
3773 SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode)  in SYSCALL_DEFINE3()  argument
3775 	return do_mkdirat(dfd, pathname, mode);  in SYSCALL_DEFINE3()
3822 long do_rmdir(int dfd, struct filename *name)  in do_rmdir()  argument
3831 	name = filename_parentat(dfd, name, lookup_flags,  in do_rmdir()
3951 long do_unlinkat(int dfd, struct filename *name)  in do_unlinkat()  argument
3962 	name = filename_parentat(dfd, name, lookup_flags, &path, &last, &type);  in do_unlinkat()
4022 SYSCALL_DEFINE3(unlinkat, int, dfd, const char __user *, pathname, int, flag)  in SYSCALL_DEFINE3()  argument
4028 		return do_rmdir(dfd, getname(pathname));  in SYSCALL_DEFINE3()
4029 	return do_unlinkat(dfd, getname(pathname));  in SYSCALL_DEFINE3()