66 static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval);
67 static int dbBackSplit(dmtree_t * tp, int leafno);
68 static int dbJoin(dmtree_t * tp, int leafno, int newval);
69 static void dbAdjTree(dmtree_t * tp, int leafno, int newval);
2510 	int rc, leafno, ti;  in dbAdjCtl()  local
2530 	leafno = BLKTOCTLLEAF(blkno, dcp->budmin);  in dbAdjCtl()
2531 	ti = leafno + le32_to_cpu(dcp->leafidx);  in dbAdjCtl()
2559 			rc = dbBackSplit((dmtree_t *) dcp, leafno);  in dbAdjCtl()
2564 		dbSplit((dmtree_t *) dcp, leafno, dcp->budmin, newval);  in dbAdjCtl()
2566 		rc = dbJoin((dmtree_t *) dcp, leafno, newval);  in dbAdjCtl()
2594 					dbJoin((dmtree_t *) dcp, leafno,  in dbAdjCtl()
2605 							    dcp, leafno);  in dbAdjCtl()
2606 					dbSplit((dmtree_t *) dcp, leafno,  in dbAdjCtl()
2655 static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval)  in dbSplit()  argument
2663 	if (leaf[leafno] > tp->dmt_budmin) {  in dbSplit()
2669 		cursz = leaf[leafno] - 1;  in dbSplit()
2677 			dbAdjTree(tp, leafno ^ budsz, cursz);  in dbSplit()
2689 	dbAdjTree(tp, leafno, newval);  in dbSplit()
2720 static int dbBackSplit(dmtree_t * tp, int leafno)  in dbBackSplit()  argument
2729 	assert(leaf[leafno] == NOFREE);  in dbBackSplit()
2739 	    LITOL2BSZ(leafno, le32_to_cpu(tp->dmt_l2nleafs),  in dbBackSplit()
2750 	while (leaf[leafno] == NOFREE) {  in dbBackSplit()
2753 		for (w = leafno, bsz = budsz;; bsz <<= 1,  in dbBackSplit()
2777 	if (leaf[leafno] != size) {  in dbBackSplit()
2799 static int dbJoin(dmtree_t * tp, int leafno, int newval)  in dbJoin()  argument
2831 			buddy = leafno ^ budsz;  in dbJoin()
2851 			if (leafno < buddy) {  in dbJoin()
2859 				dbAdjTree(tp, leafno, NOFREE);  in dbJoin()
2860 				leafno = buddy;  in dbJoin()
2872 	dbAdjTree(tp, leafno, newval);  in dbJoin()
2893 static void dbAdjTree(dmtree_t * tp, int leafno, int newval)  in dbAdjTree()  argument
2900 	lp = leafno + le32_to_cpu(tp->dmt_leafidx);  in dbAdjTree()