551 int ipflog_read(unit, uio, ifs)  in ipflog_read()  argument
552 minor_t unit;  in ipflog_read()
565 	if (IPL_LOGMAX < unit)
580 	while (ifs->ifs_iplt[unit] == NULL) {
607 		l = get_sleep_lock(&ifs->ifs_iplh[unit]);
608 		error = sleep(&ifs->ifs_iplh[unit], PZERO+1);
612 		error = mpsleep(&ifs->ifs_iplh[unit], PSUSP|PCATCH,  "iplread", 0,
617 		error = SLEEP(&ifs->ifs_iplh[unit], "ipl sleep");
631 	for (copied = 0; ((ipl = ifs->ifs_iplt[unit]) != NULL); copied += dlen) {
638 		ifs->ifs_iplt[unit] = ipl->ipl_next;
639 		ifs->ifs_iplused[unit] -= dlen;
640 		if (ifs->ifs_iplt[unit] == NULL) {
641 			ifs->ifs_iplh[unit] = &ifs->ifs_iplt[unit];
642 			ifs->ifs_ipll[unit] = NULL;
650 			ifs->ifs_iplused[unit] += dlen;
651 			ipl->ipl_next = ifs->ifs_iplt[unit];
652 			ifs->ifs_iplt[unit] = ipl;
653 			ifs->ifs_ipll[unit] = ipl;
654 			if (ifs->ifs_iplh[unit] == &ifs->ifs_iplt[unit]) {
655 				*ifs->ifs_iplh[unit] = ipl;
656 				ifs->ifs_iplh[unit] = &ipl->ipl_next;
678 int ipflog_clear(unit, ifs)  in ipflog_clear()  argument
679 minor_t unit;  in ipflog_clear()
688 	while ((ipl = ifs->ifs_iplt[unit]) != NULL) {
689 		ifs->ifs_iplt[unit] = ipl->ipl_next;
692 	ifs->ifs_iplh[unit] = &ifs->ifs_iplt[unit];
693 	ifs->ifs_ipll[unit] = NULL;
694 	used = ifs->ifs_iplused[unit];
695 	ifs->ifs_iplused[unit] = 0;
696 	bzero((char *)&ifs->ifs_iplcrc[unit], FI_CSIZE);