630 	if (tty->pgrp <= 0) {  in tty_check_change()
634 	if (current->pgrp == tty->pgrp)  in tty_check_change()
638 	if (is_orphaned_pgrp(current->pgrp))  in tty_check_change()
640 	(void) kill_pg(current->pgrp,SIGTTOU,1);  in tty_check_change()
828 			if (tty->pgrp > 0)  in do_tty_hangup()
829 				p->tty_old_pgrp = tty->pgrp;  in do_tty_hangup()
838 	tty->pgrp = -1;  in do_tty_hangup()
913 		tty_pgrp = tty->pgrp;  in disassociate_ctty()
931 	tty->pgrp = -1;  in disassociate_ctty()
995 	    (tty->pgrp > 0) &&  in tty_read()
997 	    (tty->pgrp != current->pgrp))  in tty_read()
998 		if (is_ignored(SIGTTIN) || is_orphaned_pgrp(current->pgrp))  in tty_read()
1001 			(void) kill_pg(current->pgrp, SIGTTIN, 1);  in tty_read()
1120 	if (!is_console && L_TOSTOP(tty) && (tty->pgrp > 0) &&  in tty_write()
1121 	    (current->tty == tty) && (tty->pgrp != current->pgrp)) {  in tty_write()
1122 		if (is_orphaned_pgrp(current->pgrp))  in tty_write()
1125 			(void) kill_pg(current->pgrp, SIGTTOU, 1);  in tty_write()
1808 		tty->pgrp = current->pgrp;  in tty_open()
1869 			filp->f_owner.pid = (-tty->pgrp) ? : current->pid;  in tty_fasync()
1911 	if (tty->pgrp > 0)  in tiocswinsz()
1912 		kill_pg(tty->pgrp, SIGWINCH, 1);  in tiocswinsz()
1913 	if ((real_tty->pgrp != tty->pgrp) && (real_tty->pgrp > 0))  in tiocswinsz()
1914 		kill_pg(real_tty->pgrp, SIGWINCH, 1);  in tiocswinsz()
1996 	tty->pgrp = current->pgrp;  in tiocsctty()
2008 	return put_user(real_tty->pgrp, arg);  in tiocgpgrp()
2013 	pid_t pgrp;  in tiocspgrp()  local
2024 	if (get_user(pgrp, (pid_t *) arg))  in tiocspgrp()
2026 	if (pgrp < 0)  in tiocspgrp()
2028 	if (session_of_pgrp(pgrp) != current->session)  in tiocspgrp()
2030 	real_tty->pgrp = pgrp;  in tiocspgrp()
2454 	tty->pgrp = -1;  in initialize_tty_struct()