69 	restart = buf->head->commit != buf->head->read;  in tty_buffer_unlock_exclusive()
121 	while ((p = buf->head) != NULL) {  in tty_buffer_free_all()
122 		buf->head = p->next;  in tty_buffer_free_all()
131 	buf->head = &buf->sentinel;  in tty_buffer_free_all()
225 	while ((next = smp_load_acquire(&buf->head->next)) != NULL) {  in tty_buffer_flush()
226 		tty_buffer_free(port, buf->head);  in tty_buffer_flush()
227 		buf->head = next;  in tty_buffer_flush()
229 	buf->head->read = buf->head->commit;  in tty_buffer_flush()
466 receive_buf(struct tty_ldisc *ld, struct tty_buffer *head, int count)  in receive_buf()  argument
468 	unsigned char *p = char_buf_ptr(head, head->read);  in receive_buf()
471 	if (~head->flags & TTYB_NORMAL)  in receive_buf()
472 		f = flag_buf_ptr(head, head->read);  in receive_buf()
508 		struct tty_buffer *head = buf->head;  in flush_to_ldisc()  local
520 		next = smp_load_acquire(&head->next);  in flush_to_ldisc()
524 		count = smp_load_acquire(&head->commit) - head->read;  in flush_to_ldisc()
528 			buf->head = next;  in flush_to_ldisc()
529 			tty_buffer_free(port, head);  in flush_to_ldisc()
533 		count = receive_buf(disc, head, count);  in flush_to_ldisc()
536 		head->read += count;  in flush_to_ldisc()
575 	buf->head = &buf->sentinel;  in tty_buffer_init()