179 static inline struct tty_struct *file_tty(struct file *file)  in file_tty()  function
471 	struct tty_struct *tty = file_tty(file);  in tty_show_fdinfo()
579 	if (redirect && file_tty(redirect) == tty) {  in __tty_hangup()
854 	struct tty_struct *tty = file_tty(file);  in tty_read()
1028 	struct tty_struct *tty = file_tty(file);  in tty_write()
1651 	struct tty_struct *tty = file_tty(filp);  in tty_release()
2102 	struct tty_struct *tty = file_tty(filp);  in tty_poll()
2120 	struct tty_struct *tty = file_tty(filp);  in __tty_fasync()
2155 	struct tty_struct *tty = file_tty(filp);  in tty_fasync()
2537 	struct tty_struct *tty = file_tty(file);  in tty_ioctl()
2753 	struct tty_struct *tty = file_tty(file);  in tty_compat_ioctl()
2865 	return file_tty(file) != t ? 0 : fd + 1;  in this_tty()