857 		 * check how many of new items fall into L[h] or CFL[h] after  in balance_internal()
862 			/* new items don't fall into L[h] or CFL[h] */  in balance_internal()
867 			/* all new items fall into L[h] */  in balance_internal()
886 			 * some items fall into L[h] or CFL[h],  in balance_internal()
887 			 * but some don't fall  in balance_internal()
890 			/* calculate number of new items that fall into L[h] */  in balance_internal()
926 		 * check how many of new items fall into R or CFR  in balance_internal()
931 			/* new items fall into S[h] */  in balance_internal()
935 			/* all new items fall into R[h] */  in balance_internal()
956 			/* calculate number of new items that fall into R[h] */  in balance_internal()
1062 			/* new items don't fall into S_new */  in balance_internal()
1071 			/* all new items fall into S_new */  in balance_internal()
1100 			/* some items fall into S_new, but some don't fall */  in balance_internal()
1105 			/* calculate number of new items that fall into S_new */  in balance_internal()