net/altq/altq_rmclass.c

107  * but when the borrowed class is overloaded (advidle is close to minidle),
1265 	rm_class_t	*cl, *borrowed;
1276 	borrowed = ifd->borrowed_[ifd->qo_];
1277 	borrows = borrowed;
1397 	if (borrowed && (ifd->cutoff_ >= borrowed->depth_)) {
1399 		if ((qlen(cl->q_) <= 0) || TV_LT(nowp, &borrowed->undertime_)) {
1403 			ifd->cutoff_ = borrowed->depth_;
1404 			CBQTRACE(rmc_update_class_util, 'ffob', borrowed->depth_);
1407 		if ((qlen(cl->q_) <= 1) || TV_LT(&now, &borrowed->undertime_)) {
1414 			ifd->cutoff_ = borrowed->depth_;
1415 			CBQTRACE(rmc_update_class_util, 'ffob', borrowed->depth_);