446 static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)  in tiocgpgrp()  argument
454 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgpgrp()
456 	pid = tty_get_pgrp(real_tty);  in tiocgpgrp()
473 static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)  in tiocspgrp()  argument
477 	int retval = tty_check_change(real_tty);  in tiocspgrp()
489 	spin_lock_irq(&real_tty->ctrl_lock);  in tiocspgrp()
491 	    (current->signal->tty != real_tty) ||  in tiocspgrp()
492 	    (real_tty->session != task_session(current))) {  in tiocspgrp()
505 	put_pid(real_tty->pgrp);  in tiocspgrp()
506 	real_tty->pgrp = get_pid(pgrp);  in tiocspgrp()
510 	spin_unlock_irq(&real_tty->ctrl_lock);  in tiocspgrp()
523 static int tiocgsid(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)  in tiocgsid()  argument
532 	if (tty == real_tty && current->signal->tty != real_tty)  in tiocgsid()
535 	spin_lock_irqsave(&real_tty->ctrl_lock, flags);  in tiocgsid()
536 	if (!real_tty->session)  in tiocgsid()
538 	sid = pid_vnr(real_tty->session);  in tiocgsid()
539 	spin_unlock_irqrestore(&real_tty->ctrl_lock, flags);  in tiocgsid()
544 	spin_unlock_irqrestore(&real_tty->ctrl_lock, flags);  in tiocgsid()
552 long tty_jobctrl_ioctl(struct tty_struct *tty, struct tty_struct *real_tty,  in tty_jobctrl_ioctl()  argument
564 		return tiocsctty(real_tty, file, arg);  in tty_jobctrl_ioctl()
566 		return tiocgpgrp(tty, real_tty, p);  in tty_jobctrl_ioctl()
568 		return tiocspgrp(tty, real_tty, p);  in tty_jobctrl_ioctl()
570 		return tiocgsid(tty, real_tty, p);  in tty_jobctrl_ioctl()