807 	unsigned long used = child_length(tn);  in should_inflate()  local
808 	unsigned long threshold = used;  in should_inflate()
812 	used -= tn_info(tn)->empty_children;  in should_inflate()
813 	used += tn_info(tn)->full_children;  in should_inflate()
817 	return (used > 1) && tn->pos && ((50 * used) >= threshold);  in should_inflate()
822 	unsigned long used = child_length(tn);  in should_halve()  local
823 	unsigned long threshold = used;  in should_halve()
827 	used -= tn_info(tn)->empty_children;  in should_halve()
831 	return (used > 1) && (tn->bits > 1) && ((100 * used) < threshold);  in should_halve()
836 	unsigned long used = child_length(tn);  in should_collapse()  local
838 	used -= tn_info(tn)->empty_children;  in should_collapse()
842 		used -= KEY_MAX;  in should_collapse()
845 	return used < 2;  in should_collapse()