311 	avl_node_t *gchild;  in avl_rotation()  local
419 	gchild = child->avl_child[right];  in avl_rotation()
420 	gleft = gchild->avl_child[left];  in avl_rotation()
421 	gright = gchild->avl_child[right];  in avl_rotation()
447 	balance = AVL_XBALANCE(gchild);  in avl_rotation()
448 	gchild->avl_child[left] = child;  in avl_rotation()
450 	AVL_SETPARENT(child, gchild);  in avl_rotation()
453 	gchild->avl_child[right] = node;  in avl_rotation()
455 	AVL_SETPARENT(node, gchild);  in avl_rotation()
458 	AVL_SETBALANCE(gchild, 0);  in avl_rotation()
459 	AVL_SETPARENT(gchild, parent);  in avl_rotation()
460 	AVL_SETCHILD(gchild, which_child);  in avl_rotation()
462 		parent->avl_child[which_child] = gchild;  in avl_rotation()
464 		tree->avl_root = gchild;  in avl_rotation()