Merge upstream 2.6.13-rc3 into ieee80211 branch of netdev-2.6.

1 files changed, 938 insertions, 906 deletions

diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
index a362125da0d8..6c5a726fd34b 100644
--- a/fs/reiserfs/ibalance.c
+++ b/fs/reiserfs/ibalance.c
@@ -10,13 +10,8 @@
 #include <linux/buffer_head.h>
 
 /* this is one and only function that is used outside (do_balance.c) */
-int	balance_internal (
-			  struct tree_balance * ,
-			  int,
-			  int,
-			  struct item_head * ,
-			  struct buffer_head ** 
-			  );
+int balance_internal(struct tree_balance *,
+		     int, int, struct item_head *, struct buffer_head **);
 
 /* modes of internal_shift_left, internal_shift_right and internal_insert_childs */
 #define INTERNAL_SHIFT_FROM_S_TO_L 0
@@ -27,464 +22,474 @@ int	balance_internal (
 #define INTERNAL_INSERT_TO_L 5
 #define INTERNAL_INSERT_TO_R 6
 
-static void	internal_define_dest_src_infos (
-						int shift_mode,
-						struct tree_balance * tb,
-						int h,
-						struct buffer_info * dest_bi,
-						struct buffer_info * src_bi,
-						int * d_key,
-						struct buffer_head ** cf
-						)
+static void internal_define_dest_src_infos(int shift_mode,
+					   struct tree_balance *tb,
+					   int h,
+					   struct buffer_info *dest_bi,
+					   struct buffer_info *src_bi,
+					   int *d_key, struct buffer_head **cf)
 {
-    memset (dest_bi, 0, sizeof (struct buffer_info));
-    memset (src_bi, 0, sizeof (struct buffer_info));
-    /* define dest, src, dest parent, dest position */
-    switch (shift_mode) {
-    case INTERNAL_SHIFT_FROM_S_TO_L:	/* used in internal_shift_left */
-	src_bi->tb = tb;
-	src_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
-	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	src_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = tb->L[h];
-	dest_bi->bi_parent = tb->FL[h];
-	dest_bi->bi_position = get_left_neighbor_position (tb, h);
-	*d_key = tb->lkey[h];
-	*cf = tb->CFL[h];
-	break;
-    case INTERNAL_SHIFT_FROM_L_TO_S:
-	src_bi->tb = tb;
-	src_bi->bi_bh = tb->L[h];
-	src_bi->bi_parent = tb->FL[h];
-	src_bi->bi_position = get_left_neighbor_position (tb, h);
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
-	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1); /* dest position is analog of dest->b_item_order */
-	*d_key = tb->lkey[h];
-	*cf = tb->CFL[h];
-	break;
-      
-    case INTERNAL_SHIFT_FROM_R_TO_S:	/* used in internal_shift_left */
-	src_bi->tb = tb;
-	src_bi->bi_bh = tb->R[h];
-	src_bi->bi_parent = tb->FR[h];
-	src_bi->bi_position = get_right_neighbor_position (tb, h);
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
-	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-	*d_key = tb->rkey[h];
-	*cf = tb->CFR[h];
-	break;
-
-    case INTERNAL_SHIFT_FROM_S_TO_R:
-	src_bi->tb = tb;
-	src_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
-	src_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	src_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = tb->R[h];
-	dest_bi->bi_parent = tb->FR[h];
-	dest_bi->bi_position = get_right_neighbor_position (tb, h);
-	*d_key = tb->rkey[h];
-	*cf = tb->CFR[h];
-	break;
-
-    case INTERNAL_INSERT_TO_L:
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = tb->L[h];
-	dest_bi->bi_parent = tb->FL[h];
-	dest_bi->bi_position = get_left_neighbor_position (tb, h);
-	break;
-	
-    case INTERNAL_INSERT_TO_S:
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = PATH_H_PBUFFER (tb->tb_path, h);
-	dest_bi->bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	dest_bi->bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-	break;
-
-    case INTERNAL_INSERT_TO_R:
-	dest_bi->tb = tb;
-	dest_bi->bi_bh = tb->R[h];
-	dest_bi->bi_parent = tb->FR[h];
-	dest_bi->bi_position = get_right_neighbor_position (tb, h);
-	break;
-
-    default:
-	reiserfs_panic (tb->tb_sb, "internal_define_dest_src_infos: shift type is unknown (%d)", shift_mode);
-    }
+	memset(dest_bi, 0, sizeof(struct buffer_info));
+	memset(src_bi, 0, sizeof(struct buffer_info));
+	/* define dest, src, dest parent, dest position */
+	switch (shift_mode) {
+	case INTERNAL_SHIFT_FROM_S_TO_L:	/* used in internal_shift_left */
+		src_bi->tb = tb;
+		src_bi->bi_bh = PATH_H_PBUFFER(tb->tb_path, h);
+		src_bi->bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		src_bi->bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = tb->L[h];
+		dest_bi->bi_parent = tb->FL[h];
+		dest_bi->bi_position = get_left_neighbor_position(tb, h);
+		*d_key = tb->lkey[h];
+		*cf = tb->CFL[h];
+		break;
+	case INTERNAL_SHIFT_FROM_L_TO_S:
+		src_bi->tb = tb;
+		src_bi->bi_bh = tb->L[h];
+		src_bi->bi_parent = tb->FL[h];
+		src_bi->bi_position = get_left_neighbor_position(tb, h);
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = PATH_H_PBUFFER(tb->tb_path, h);
+		dest_bi->bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		dest_bi->bi_position = PATH_H_POSITION(tb->tb_path, h + 1);	/* dest position is analog of dest->b_item_order */
+		*d_key = tb->lkey[h];
+		*cf = tb->CFL[h];
+		break;
+
+	case INTERNAL_SHIFT_FROM_R_TO_S:	/* used in internal_shift_left */
+		src_bi->tb = tb;
+		src_bi->bi_bh = tb->R[h];
+		src_bi->bi_parent = tb->FR[h];
+		src_bi->bi_position = get_right_neighbor_position(tb, h);
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = PATH_H_PBUFFER(tb->tb_path, h);
+		dest_bi->bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		dest_bi->bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+		*d_key = tb->rkey[h];
+		*cf = tb->CFR[h];
+		break;
+
+	case INTERNAL_SHIFT_FROM_S_TO_R:
+		src_bi->tb = tb;
+		src_bi->bi_bh = PATH_H_PBUFFER(tb->tb_path, h);
+		src_bi->bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		src_bi->bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = tb->R[h];
+		dest_bi->bi_parent = tb->FR[h];
+		dest_bi->bi_position = get_right_neighbor_position(tb, h);
+		*d_key = tb->rkey[h];
+		*cf = tb->CFR[h];
+		break;
+
+	case INTERNAL_INSERT_TO_L:
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = tb->L[h];
+		dest_bi->bi_parent = tb->FL[h];
+		dest_bi->bi_position = get_left_neighbor_position(tb, h);
+		break;
+
+	case INTERNAL_INSERT_TO_S:
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = PATH_H_PBUFFER(tb->tb_path, h);
+		dest_bi->bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		dest_bi->bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+		break;
+
+	case INTERNAL_INSERT_TO_R:
+		dest_bi->tb = tb;
+		dest_bi->bi_bh = tb->R[h];
+		dest_bi->bi_parent = tb->FR[h];
+		dest_bi->bi_position = get_right_neighbor_position(tb, h);
+		break;
+
+	default:
+		reiserfs_panic(tb->tb_sb,
+			       "internal_define_dest_src_infos: shift type is unknown (%d)",
+			       shift_mode);
+	}
 }
 
-
-
 /* Insert count node pointers into buffer cur before position to + 1.
  * Insert count items into buffer cur before position to.
  * Items and node pointers are specified by inserted and bh respectively.
- */ 
-static void internal_insert_childs (struct buffer_info * cur_bi,
-				    int to, int count,
-				    struct item_head * inserted,
-				    struct buffer_head ** bh
-    )
+ */
+static void internal_insert_childs(struct buffer_info *cur_bi,
+				   int to, int count,
+				   struct item_head *inserted,
+				   struct buffer_head **bh)
 {
-    struct buffer_head * cur = cur_bi->bi_bh;
-    struct block_head * blkh;
-    int nr;
-    struct reiserfs_key * ih;
-    struct disk_child new_dc[2];
-    struct disk_child * dc;
-    int i;
-
-    if (count <= 0)
-	return;
-
-    blkh = B_BLK_HEAD(cur);
-    nr = blkh_nr_item(blkh);
-
-    RFALSE( count > 2,
-	    "too many children (%d) are to be inserted", count);
-    RFALSE( B_FREE_SPACE (cur) < count * (KEY_SIZE + DC_SIZE),
-	    "no enough free space (%d), needed %d bytes", 
-	    B_FREE_SPACE (cur), count * (KEY_SIZE + DC_SIZE));
-
-    /* prepare space for count disk_child */
-    dc = B_N_CHILD(cur,to+1);
-
-    memmove (dc + count, dc, (nr+1-(to+1)) * DC_SIZE);
-
-    /* copy to_be_insert disk children */
-    for (i = 0; i < count; i ++) {
-	put_dc_size( &(new_dc[i]), MAX_CHILD_SIZE(bh[i]) - B_FREE_SPACE(bh[i]));
-	put_dc_block_number( &(new_dc[i]), bh[i]->b_blocknr );
-    }
-    memcpy (dc, new_dc, DC_SIZE * count);
-
-  
-    /* prepare space for count items  */
-    ih = B_N_PDELIM_KEY (cur, ((to == -1) ? 0 : to));
-
-    memmove (ih + count, ih, (nr - to) * KEY_SIZE + (nr + 1 + count) * DC_SIZE);
-
-    /* copy item headers (keys) */
-    memcpy (ih, inserted, KEY_SIZE);
-    if ( count > 1 )
-	memcpy (ih + 1, inserted + 1, KEY_SIZE);
-
-    /* sizes, item number */
-    set_blkh_nr_item( blkh, blkh_nr_item(blkh) + count );
-    set_blkh_free_space( blkh,
-                        blkh_free_space(blkh) - count * (DC_SIZE + KEY_SIZE ) );
-
-    do_balance_mark_internal_dirty (cur_bi->tb, cur,0);
-
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-    check_internal (cur);
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-
-    if (cur_bi->bi_parent) {
-	struct disk_child *t_dc = B_N_CHILD (cur_bi->bi_parent,cur_bi->bi_position);
-	put_dc_size( t_dc, dc_size(t_dc) + (count * (DC_SIZE + KEY_SIZE)));
-	do_balance_mark_internal_dirty(cur_bi->tb, cur_bi->bi_parent, 0);
-
-	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
-	check_internal (cur_bi->bi_parent);
-	/*&&&&&&&&&&&&&&&&&&&&&&&&*/   
-    }
+	struct buffer_head *cur = cur_bi->bi_bh;
+	struct block_head *blkh;
+	int nr;
+	struct reiserfs_key *ih;
+	struct disk_child new_dc[2];
+	struct disk_child *dc;
+	int i;
+
+	if (count <= 0)
+		return;
+
+	blkh = B_BLK_HEAD(cur);
+	nr = blkh_nr_item(blkh);
+
+	RFALSE(count > 2, "too many children (%d) are to be inserted", count);
+	RFALSE(B_FREE_SPACE(cur) < count * (KEY_SIZE + DC_SIZE),
+	       "no enough free space (%d), needed %d bytes",
+	       B_FREE_SPACE(cur), count * (KEY_SIZE + DC_SIZE));
+
+	/* prepare space for count disk_child */
+	dc = B_N_CHILD(cur, to + 1);
+
+	memmove(dc + count, dc, (nr + 1 - (to + 1)) * DC_SIZE);
+
+	/* copy to_be_insert disk children */
+	for (i = 0; i < count; i++) {
+		put_dc_size(&(new_dc[i]),
+			    MAX_CHILD_SIZE(bh[i]) - B_FREE_SPACE(bh[i]));
+		put_dc_block_number(&(new_dc[i]), bh[i]->b_blocknr);
+	}
+	memcpy(dc, new_dc, DC_SIZE * count);
+
+	/* prepare space for count items  */
+	ih = B_N_PDELIM_KEY(cur, ((to == -1) ? 0 : to));
+
+	memmove(ih + count, ih,
+		(nr - to) * KEY_SIZE + (nr + 1 + count) * DC_SIZE);
+
+	/* copy item headers (keys) */
+	memcpy(ih, inserted, KEY_SIZE);
+	if (count > 1)
+		memcpy(ih + 1, inserted + 1, KEY_SIZE);
+
+	/* sizes, item number */
+	set_blkh_nr_item(blkh, blkh_nr_item(blkh) + count);
+	set_blkh_free_space(blkh,
+			    blkh_free_space(blkh) - count * (DC_SIZE +
+							     KEY_SIZE));
+
+	do_balance_mark_internal_dirty(cur_bi->tb, cur, 0);
+
+	/*&&&&&&&&&&&&&&&&&&&&&&&& */
+	check_internal(cur);
+	/*&&&&&&&&&&&&&&&&&&&&&&&& */
+
+	if (cur_bi->bi_parent) {
+		struct disk_child *t_dc =
+		    B_N_CHILD(cur_bi->bi_parent, cur_bi->bi_position);
+		put_dc_size(t_dc,
+			    dc_size(t_dc) + (count * (DC_SIZE + KEY_SIZE)));
+		do_balance_mark_internal_dirty(cur_bi->tb, cur_bi->bi_parent,
+					       0);
+
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+		check_internal(cur_bi->bi_parent);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+	}
 
 }
 
-
 /* Delete del_num items and node pointers from buffer cur starting from *
  * the first_i'th item and first_p'th pointers respectively.		*/
-static void	internal_delete_pointers_items (
-						struct buffer_info * cur_bi,
-						int first_p, 
-						int first_i, 
-						int del_num
-						)
+static void internal_delete_pointers_items(struct buffer_info *cur_bi,
+					   int first_p,
+					   int first_i, int del_num)
 {
-  struct buffer_head * cur = cur_bi->bi_bh;
-  int nr;
-  struct block_head * blkh;
-  struct reiserfs_key * key;
-  struct disk_child * dc;
-
-  RFALSE( cur == NULL, "buffer is 0");
-  RFALSE( del_num < 0,
-          "negative number of items (%d) can not be deleted", del_num);
-  RFALSE( first_p < 0 || first_p + del_num > B_NR_ITEMS (cur) + 1 || first_i < 0,
-          "first pointer order (%d) < 0 or "
-          "no so many pointers (%d), only (%d) or "
-          "first key order %d < 0", first_p, 
-          first_p + del_num, B_NR_ITEMS (cur) + 1, first_i);
-  if ( del_num == 0 )
-    return;
-
-  blkh = B_BLK_HEAD(cur);
-  nr = blkh_nr_item(blkh);
-
-  if ( first_p == 0 && del_num == nr + 1 ) {
-    RFALSE( first_i != 0, "1st deleted key must have order 0, not %d", first_i);
-    make_empty_node (cur_bi);
-    return;
-  }
-
-  RFALSE( first_i + del_num > B_NR_ITEMS (cur),
-          "first_i = %d del_num = %d "
-          "no so many keys (%d) in the node (%b)(%z)",
-          first_i, del_num, first_i + del_num, cur, cur);
-
-
-  /* deleting */
-  dc = B_N_CHILD (cur, first_p);
-
-  memmove (dc, dc + del_num, (nr + 1 - first_p - del_num) * DC_SIZE);
-  key = B_N_PDELIM_KEY (cur, first_i);
-  memmove (key, key + del_num, (nr - first_i - del_num) * KEY_SIZE + (nr + 1 - del_num) * DC_SIZE);
-
-
-  /* sizes, item number */
-  set_blkh_nr_item( blkh, blkh_nr_item(blkh) - del_num );
-  set_blkh_free_space( blkh,
-                    blkh_free_space(blkh) + (del_num * (KEY_SIZE + DC_SIZE) ) );
-
-  do_balance_mark_internal_dirty (cur_bi->tb, cur, 0);
-  /*&&&&&&&&&&&&&&&&&&&&&&&*/
-  check_internal (cur);
-  /*&&&&&&&&&&&&&&&&&&&&&&&*/
- 
-  if (cur_bi->bi_parent) {
-    struct disk_child *t_dc;
-    t_dc = B_N_CHILD (cur_bi->bi_parent, cur_bi->bi_position);
-    put_dc_size( t_dc, dc_size(t_dc) - (del_num * (KEY_SIZE + DC_SIZE) ) );
-
-    do_balance_mark_internal_dirty (cur_bi->tb, cur_bi->bi_parent,0);
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-    check_internal (cur_bi->bi_parent);
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/   
-  }
-}
+	struct buffer_head *cur = cur_bi->bi_bh;
+	int nr;
+	struct block_head *blkh;
+	struct reiserfs_key *key;
+	struct disk_child *dc;
+
+	RFALSE(cur == NULL, "buffer is 0");
+	RFALSE(del_num < 0,
+	       "negative number of items (%d) can not be deleted", del_num);
+	RFALSE(first_p < 0 || first_p + del_num > B_NR_ITEMS(cur) + 1
+	       || first_i < 0,
+	       "first pointer order (%d) < 0 or "
+	       "no so many pointers (%d), only (%d) or "
+	       "first key order %d < 0", first_p, first_p + del_num,
+	       B_NR_ITEMS(cur) + 1, first_i);
+	if (del_num == 0)
+		return;
+
+	blkh = B_BLK_HEAD(cur);
+	nr = blkh_nr_item(blkh);
+
+	if (first_p == 0 && del_num == nr + 1) {
+		RFALSE(first_i != 0,
+		       "1st deleted key must have order 0, not %d", first_i);
+		make_empty_node(cur_bi);
+		return;
+	}
 
+	RFALSE(first_i + del_num > B_NR_ITEMS(cur),
+	       "first_i = %d del_num = %d "
+	       "no so many keys (%d) in the node (%b)(%z)",
+	       first_i, del_num, first_i + del_num, cur, cur);
+
+	/* deleting */
+	dc = B_N_CHILD(cur, first_p);
+
+	memmove(dc, dc + del_num, (nr + 1 - first_p - del_num) * DC_SIZE);
+	key = B_N_PDELIM_KEY(cur, first_i);
+	memmove(key, key + del_num,
+		(nr - first_i - del_num) * KEY_SIZE + (nr + 1 -
+						       del_num) * DC_SIZE);
+
+	/* sizes, item number */
+	set_blkh_nr_item(blkh, blkh_nr_item(blkh) - del_num);
+	set_blkh_free_space(blkh,
+			    blkh_free_space(blkh) +
+			    (del_num * (KEY_SIZE + DC_SIZE)));
+
+	do_balance_mark_internal_dirty(cur_bi->tb, cur, 0);
+	/*&&&&&&&&&&&&&&&&&&&&&&& */
+	check_internal(cur);
+	/*&&&&&&&&&&&&&&&&&&&&&&& */
+
+	if (cur_bi->bi_parent) {
+		struct disk_child *t_dc;
+		t_dc = B_N_CHILD(cur_bi->bi_parent, cur_bi->bi_position);
+		put_dc_size(t_dc,
+			    dc_size(t_dc) - (del_num * (KEY_SIZE + DC_SIZE)));
+
+		do_balance_mark_internal_dirty(cur_bi->tb, cur_bi->bi_parent,
+					       0);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+		check_internal(cur_bi->bi_parent);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+	}
+}
 
 /* delete n node pointers and items starting from given position */
-static void  internal_delete_childs (struct buffer_info * cur_bi, 
-				     int from, int n)
+static void internal_delete_childs(struct buffer_info *cur_bi, int from, int n)
 {
-  int i_from;
+	int i_from;
 
-  i_from = (from == 0) ? from : from - 1;
+	i_from = (from == 0) ? from : from - 1;
 
-  /* delete n pointers starting from `from' position in CUR;
-     delete n keys starting from 'i_from' position in CUR;
-     */
-  internal_delete_pointers_items (cur_bi, from, i_from, n);
+	/* delete n pointers starting from `from' position in CUR;
+	   delete n keys starting from 'i_from' position in CUR;
+	 */
+	internal_delete_pointers_items(cur_bi, from, i_from, n);
 }
 
-
 /* copy cpy_num node pointers and cpy_num - 1 items from buffer src to buffer dest
 * last_first == FIRST_TO_LAST means, that we copy first items from src to tail of dest
  * last_first == LAST_TO_FIRST means, that we copy last items from src to head of dest 
  */
-static void internal_copy_pointers_items (
-					  struct buffer_info * dest_bi,
-					  struct buffer_head * src,
-					  int last_first, int cpy_num
-					  )
+static void internal_copy_pointers_items(struct buffer_info *dest_bi,
+					 struct buffer_head *src,
+					 int last_first, int cpy_num)
 {
-  /* ATTENTION! Number of node pointers in DEST is equal to number of items in DEST *
-   * as delimiting key have already inserted to buffer dest.*/
-  struct buffer_head * dest = dest_bi->bi_bh;
-  int nr_dest, nr_src;
-  int dest_order, src_order;
-  struct block_head * blkh;
-  struct reiserfs_key * key;
-  struct disk_child * dc;
-
-  nr_src = B_NR_ITEMS (src);
-
-  RFALSE( dest == NULL || src == NULL, 
-	  "src (%p) or dest (%p) buffer is 0", src, dest);
-  RFALSE( last_first != FIRST_TO_LAST && last_first != LAST_TO_FIRST,
-	  "invalid last_first parameter (%d)", last_first);
-  RFALSE( nr_src < cpy_num - 1, 
-	  "no so many items (%d) in src (%d)", cpy_num, nr_src);
-  RFALSE( cpy_num < 0, "cpy_num less than 0 (%d)", cpy_num);
-  RFALSE( cpy_num - 1 + B_NR_ITEMS(dest) > (int)MAX_NR_KEY(dest),
-	  "cpy_num (%d) + item number in dest (%d) can not be > MAX_NR_KEY(%d)",
-	  cpy_num, B_NR_ITEMS(dest), MAX_NR_KEY(dest));
-
-  if ( cpy_num == 0 )
-    return;
+	/* ATTENTION! Number of node pointers in DEST is equal to number of items in DEST *
+	 * as delimiting key have already inserted to buffer dest.*/
+	struct buffer_head *dest = dest_bi->bi_bh;
+	int nr_dest, nr_src;
+	int dest_order, src_order;
+	struct block_head *blkh;
+	struct reiserfs_key *key;
+	struct disk_child *dc;
+
+	nr_src = B_NR_ITEMS(src);
+
+	RFALSE(dest == NULL || src == NULL,
+	       "src (%p) or dest (%p) buffer is 0", src, dest);
+	RFALSE(last_first != FIRST_TO_LAST && last_first != LAST_TO_FIRST,
+	       "invalid last_first parameter (%d)", last_first);
+	RFALSE(nr_src < cpy_num - 1,
+	       "no so many items (%d) in src (%d)", cpy_num, nr_src);
+	RFALSE(cpy_num < 0, "cpy_num less than 0 (%d)", cpy_num);
+	RFALSE(cpy_num - 1 + B_NR_ITEMS(dest) > (int)MAX_NR_KEY(dest),
+	       "cpy_num (%d) + item number in dest (%d) can not be > MAX_NR_KEY(%d)",
+	       cpy_num, B_NR_ITEMS(dest), MAX_NR_KEY(dest));
+
+	if (cpy_num == 0)
+		return;
 
 	/* coping */
-  blkh = B_BLK_HEAD(dest);
-  nr_dest = blkh_nr_item(blkh);
+	blkh = B_BLK_HEAD(dest);
+	nr_dest = blkh_nr_item(blkh);
 
-  /*dest_order = (last_first == LAST_TO_FIRST) ? 0 : nr_dest;*/
-  /*src_order = (last_first == LAST_TO_FIRST) ? (nr_src - cpy_num + 1) : 0;*/
-  (last_first == LAST_TO_FIRST) ?	(dest_order = 0, src_order = nr_src - cpy_num + 1) :
-    (dest_order = nr_dest, src_order = 0);
+	/*dest_order = (last_first == LAST_TO_FIRST) ? 0 : nr_dest; */
+	/*src_order = (last_first == LAST_TO_FIRST) ? (nr_src - cpy_num + 1) : 0; */
+	(last_first == LAST_TO_FIRST) ? (dest_order = 0, src_order =
+					 nr_src - cpy_num + 1) : (dest_order =
+								  nr_dest,
+								  src_order =
+								  0);
 
-  /* prepare space for cpy_num pointers */
-  dc = B_N_CHILD (dest, dest_order);
+	/* prepare space for cpy_num pointers */
+	dc = B_N_CHILD(dest, dest_order);
 
-  memmove (dc + cpy_num, dc, (nr_dest - dest_order) * DC_SIZE);
+	memmove(dc + cpy_num, dc, (nr_dest - dest_order) * DC_SIZE);
 
 	/* insert pointers */
-  memcpy (dc, B_N_CHILD (src, src_order), DC_SIZE * cpy_num);
-
-
-  /* prepare space for cpy_num - 1 item headers */
-  key = B_N_PDELIM_KEY(dest, dest_order);
-  memmove (key + cpy_num - 1, key,
-	   KEY_SIZE * (nr_dest - dest_order) + DC_SIZE * (nr_dest + cpy_num));
-
-
-  /* insert headers */
-  memcpy (key, B_N_PDELIM_KEY (src, src_order), KEY_SIZE * (cpy_num - 1));
-
-  /* sizes, item number */
-  set_blkh_nr_item( blkh, blkh_nr_item(blkh) + (cpy_num - 1 ) );
-  set_blkh_free_space( blkh,
-      blkh_free_space(blkh) - (KEY_SIZE * (cpy_num - 1) + DC_SIZE * cpy_num ) );
-
-  do_balance_mark_internal_dirty (dest_bi->tb, dest, 0);
-
-  /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-  check_internal (dest);
-  /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-
-  if (dest_bi->bi_parent) {
-    struct disk_child *t_dc;
-    t_dc = B_N_CHILD(dest_bi->bi_parent,dest_bi->bi_position);
-    put_dc_size( t_dc, dc_size(t_dc) + (KEY_SIZE * (cpy_num - 1) + DC_SIZE * cpy_num) );
-
-    do_balance_mark_internal_dirty (dest_bi->tb, dest_bi->bi_parent,0);
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/
-    check_internal (dest_bi->bi_parent);
-    /*&&&&&&&&&&&&&&&&&&&&&&&&*/   
-  }
+	memcpy(dc, B_N_CHILD(src, src_order), DC_SIZE * cpy_num);
+
+	/* prepare space for cpy_num - 1 item headers */
+	key = B_N_PDELIM_KEY(dest, dest_order);
+	memmove(key + cpy_num - 1, key,
+		KEY_SIZE * (nr_dest - dest_order) + DC_SIZE * (nr_dest +
+							       cpy_num));
+
+	/* insert headers */
+	memcpy(key, B_N_PDELIM_KEY(src, src_order), KEY_SIZE * (cpy_num - 1));
+
+	/* sizes, item number */
+	set_blkh_nr_item(blkh, blkh_nr_item(blkh) + (cpy_num - 1));
+	set_blkh_free_space(blkh,
+			    blkh_free_space(blkh) - (KEY_SIZE * (cpy_num - 1) +
+						     DC_SIZE * cpy_num));
+
+	do_balance_mark_internal_dirty(dest_bi->tb, dest, 0);
+
+	/*&&&&&&&&&&&&&&&&&&&&&&&& */
+	check_internal(dest);
+	/*&&&&&&&&&&&&&&&&&&&&&&&& */
+
+	if (dest_bi->bi_parent) {
+		struct disk_child *t_dc;
+		t_dc = B_N_CHILD(dest_bi->bi_parent, dest_bi->bi_position);
+		put_dc_size(t_dc,
+			    dc_size(t_dc) + (KEY_SIZE * (cpy_num - 1) +
+					     DC_SIZE * cpy_num));
+
+		do_balance_mark_internal_dirty(dest_bi->tb, dest_bi->bi_parent,
+					       0);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+		check_internal(dest_bi->bi_parent);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+	}
 
 }
 
-
 /* Copy cpy_num node pointers and cpy_num - 1 items from buffer src to buffer dest.
  * Delete cpy_num - del_par items and node pointers from buffer src.
  * last_first == FIRST_TO_LAST means, that we copy/delete first items from src.
  * last_first == LAST_TO_FIRST means, that we copy/delete last items from src.
  */
-static void internal_move_pointers_items (struct buffer_info * dest_bi, 
-					  struct buffer_info * src_bi, 
-					  int last_first, int cpy_num, int del_par)
+static void internal_move_pointers_items(struct buffer_info *dest_bi,
+					 struct buffer_info *src_bi,
+					 int last_first, int cpy_num,
+					 int del_par)
 {
-    int first_pointer;
-    int first_item;
-    
-    internal_copy_pointers_items (dest_bi, src_bi->bi_bh, last_first, cpy_num);
-
-    if (last_first == FIRST_TO_LAST) {	/* shift_left occurs */
-	first_pointer = 0;
-	first_item = 0;
-	/* delete cpy_num - del_par pointers and keys starting for pointers with first_pointer, 
-	   for key - with first_item */
-	internal_delete_pointers_items (src_bi, first_pointer, first_item, cpy_num - del_par);
-    } else {			/* shift_right occurs */
-	int i, j;
-
-	i = ( cpy_num - del_par == ( j = B_NR_ITEMS(src_bi->bi_bh)) + 1 ) ? 0 : j - cpy_num + del_par;
-
-	internal_delete_pointers_items (src_bi, j + 1 - cpy_num + del_par, i, cpy_num - del_par);
-    }
+	int first_pointer;
+	int first_item;
+
+	internal_copy_pointers_items(dest_bi, src_bi->bi_bh, last_first,
+				     cpy_num);
+
+	if (last_first == FIRST_TO_LAST) {	/* shift_left occurs */
+		first_pointer = 0;
+		first_item = 0;
+		/* delete cpy_num - del_par pointers and keys starting for pointers with first_pointer, 
+		   for key - with first_item */
+		internal_delete_pointers_items(src_bi, first_pointer,
+					       first_item, cpy_num - del_par);
+	} else {		/* shift_right occurs */
+		int i, j;
+
+		i = (cpy_num - del_par ==
+		     (j =
+		      B_NR_ITEMS(src_bi->bi_bh)) + 1) ? 0 : j - cpy_num +
+		    del_par;
+
+		internal_delete_pointers_items(src_bi,
+					       j + 1 - cpy_num + del_par, i,
+					       cpy_num - del_par);
+	}
 }
 
 /* Insert n_src'th key of buffer src before n_dest'th key of buffer dest. */
-static void internal_insert_key (struct buffer_info * dest_bi, 
-				 int dest_position_before,                 /* insert key before key with n_dest number */
-				 struct buffer_head * src, 
-				 int src_position)
+static void internal_insert_key(struct buffer_info *dest_bi, int dest_position_before,	/* insert key before key with n_dest number */
+				struct buffer_head *src, int src_position)
 {
-    struct buffer_head * dest = dest_bi->bi_bh;
-    int nr;
-    struct block_head * blkh;
-    struct reiserfs_key * key;
-
-    RFALSE( dest == NULL || src == NULL,
-	    "source(%p) or dest(%p) buffer is 0", src, dest);
-    RFALSE( dest_position_before < 0 || src_position < 0,
-	    "source(%d) or dest(%d) key number less than 0", 
-	    src_position, dest_position_before);
-    RFALSE( dest_position_before > B_NR_ITEMS (dest) || 
-	    src_position >= B_NR_ITEMS(src),
-	    "invalid position in dest (%d (key number %d)) or in src (%d (key number %d))",
-	    dest_position_before, B_NR_ITEMS (dest), 
-	    src_position, B_NR_ITEMS(src));
-    RFALSE( B_FREE_SPACE (dest) < KEY_SIZE,
-	    "no enough free space (%d) in dest buffer", B_FREE_SPACE (dest));
-
-    blkh = B_BLK_HEAD(dest);
-    nr = blkh_nr_item(blkh);
-
-    /* prepare space for inserting key */
-    key = B_N_PDELIM_KEY (dest, dest_position_before);
-    memmove (key + 1, key, (nr - dest_position_before) * KEY_SIZE + (nr + 1) * DC_SIZE);
-
-    /* insert key */
-    memcpy (key, B_N_PDELIM_KEY(src, src_position), KEY_SIZE);
-
-    /* Change dirt, free space, item number fields. */
-
-    set_blkh_nr_item( blkh, blkh_nr_item(blkh) + 1 );
-    set_blkh_free_space( blkh, blkh_free_space(blkh) - KEY_SIZE );
-
-    do_balance_mark_internal_dirty (dest_bi->tb, dest, 0);
-
-    if (dest_bi->bi_parent) {
-	struct disk_child *t_dc;
-	t_dc = B_N_CHILD(dest_bi->bi_parent,dest_bi->bi_position);
-	put_dc_size( t_dc, dc_size(t_dc) + KEY_SIZE );
-
-	do_balance_mark_internal_dirty (dest_bi->tb, dest_bi->bi_parent,0);
-    }
+	struct buffer_head *dest = dest_bi->bi_bh;
+	int nr;
+	struct block_head *blkh;
+	struct reiserfs_key *key;
+
+	RFALSE(dest == NULL || src == NULL,
+	       "source(%p) or dest(%p) buffer is 0", src, dest);
+	RFALSE(dest_position_before < 0 || src_position < 0,
+	       "source(%d) or dest(%d) key number less than 0",
+	       src_position, dest_position_before);
+	RFALSE(dest_position_before > B_NR_ITEMS(dest) ||
+	       src_position >= B_NR_ITEMS(src),
+	       "invalid position in dest (%d (key number %d)) or in src (%d (key number %d))",
+	       dest_position_before, B_NR_ITEMS(dest),
+	       src_position, B_NR_ITEMS(src));
+	RFALSE(B_FREE_SPACE(dest) < KEY_SIZE,
+	       "no enough free space (%d) in dest buffer", B_FREE_SPACE(dest));
+
+	blkh = B_BLK_HEAD(dest);
+	nr = blkh_nr_item(blkh);
+
+	/* prepare space for inserting key */
+	key = B_N_PDELIM_KEY(dest, dest_position_before);
+	memmove(key + 1, key,
+		(nr - dest_position_before) * KEY_SIZE + (nr + 1) * DC_SIZE);
+
+	/* insert key */
+	memcpy(key, B_N_PDELIM_KEY(src, src_position), KEY_SIZE);
+
+	/* Change dirt, free space, item number fields. */
+
+	set_blkh_nr_item(blkh, blkh_nr_item(blkh) + 1);
+	set_blkh_free_space(blkh, blkh_free_space(blkh) - KEY_SIZE);
+
+	do_balance_mark_internal_dirty(dest_bi->tb, dest, 0);
+
+	if (dest_bi->bi_parent) {
+		struct disk_child *t_dc;
+		t_dc = B_N_CHILD(dest_bi->bi_parent, dest_bi->bi_position);
+		put_dc_size(t_dc, dc_size(t_dc) + KEY_SIZE);
+
+		do_balance_mark_internal_dirty(dest_bi->tb, dest_bi->bi_parent,
+					       0);
+	}
 }
 
-
-
 /* Insert d_key'th (delimiting) key from buffer cfl to tail of dest. 
  * Copy pointer_amount node pointers and pointer_amount - 1 items from buffer src to buffer dest.
  * Replace  d_key'th key in buffer cfl.
  * Delete pointer_amount items and node pointers from buffer src.
  */
 /* this can be invoked both to shift from S to L and from R to S */
-static void	internal_shift_left (
-				     int mode,	/* INTERNAL_FROM_S_TO_L | INTERNAL_FROM_R_TO_S */
-				     struct tree_balance * tb,
-				     int h,
-				     int pointer_amount
-				     )
+static void internal_shift_left(int mode,	/* INTERNAL_FROM_S_TO_L | INTERNAL_FROM_R_TO_S */
+				struct tree_balance *tb,
+				int h, int pointer_amount)
 {
-  struct buffer_info dest_bi, src_bi;
-  struct buffer_head * cf;
-  int d_key_position;
-
-  internal_define_dest_src_infos (mode, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
-
-  /*printk("pointer_amount = %d\n",pointer_amount);*/
-
-  if (pointer_amount) {
-    /* insert delimiting key from common father of dest and src to node dest into position B_NR_ITEM(dest) */
-    internal_insert_key (&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf, d_key_position);
-
-    if (B_NR_ITEMS(src_bi.bi_bh) == pointer_amount - 1) {
-      if (src_bi.bi_position/*src->b_item_order*/ == 0)
-	replace_key (tb, cf, d_key_position, src_bi.bi_parent/*src->b_parent*/, 0);
-    } else
-      replace_key (tb, cf, d_key_position, src_bi.bi_bh, pointer_amount - 1);
-  }
-  /* last parameter is del_parameter */
-  internal_move_pointers_items (&dest_bi, &src_bi, FIRST_TO_LAST, pointer_amount, 0);
+	struct buffer_info dest_bi, src_bi;
+	struct buffer_head *cf;
+	int d_key_position;
+
+	internal_define_dest_src_infos(mode, tb, h, &dest_bi, &src_bi,
+				       &d_key_position, &cf);
+
+	/*printk("pointer_amount = %d\n",pointer_amount); */
+
+	if (pointer_amount) {
+		/* insert delimiting key from common father of dest and src to node dest into position B_NR_ITEM(dest) */
+		internal_insert_key(&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf,
+				    d_key_position);
+
+		if (B_NR_ITEMS(src_bi.bi_bh) == pointer_amount - 1) {
+			if (src_bi.bi_position /*src->b_item_order */  == 0)
+				replace_key(tb, cf, d_key_position,
+					    src_bi.
+					    bi_parent /*src->b_parent */ , 0);
+		} else
+			replace_key(tb, cf, d_key_position, src_bi.bi_bh,
+				    pointer_amount - 1);
+	}
+	/* last parameter is del_parameter */
+	internal_move_pointers_items(&dest_bi, &src_bi, FIRST_TO_LAST,
+				     pointer_amount, 0);
 
 }
 
@@ -493,67 +498,66 @@ static void	internal_shift_left (
  * Delete n - 1 items and node pointers from buffer S[h].
  */
 /* it always shifts from S[h] to L[h] */
-static void	internal_shift1_left (
-				      struct tree_balance * tb, 
-				      int h, 
-				      int pointer_amount
-				      )
+static void internal_shift1_left(struct tree_balance *tb,
+				 int h, int pointer_amount)
 {
-  struct buffer_info dest_bi, src_bi;
-  struct buffer_head * cf;
-  int d_key_position;
+	struct buffer_info dest_bi, src_bi;
+	struct buffer_head *cf;
+	int d_key_position;
 
-  internal_define_dest_src_infos (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
+	internal_define_dest_src_infos(INTERNAL_SHIFT_FROM_S_TO_L, tb, h,
+				       &dest_bi, &src_bi, &d_key_position, &cf);
 
-  if ( pointer_amount > 0 ) /* insert lkey[h]-th key  from CFL[h] to left neighbor L[h] */
-    internal_insert_key (&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf, d_key_position);
-  /*		internal_insert_key (tb->L[h], B_NR_ITEM(tb->L[h]), tb->CFL[h], tb->lkey[h]);*/
+	if (pointer_amount > 0)	/* insert lkey[h]-th key  from CFL[h] to left neighbor L[h] */
+		internal_insert_key(&dest_bi, B_NR_ITEMS(dest_bi.bi_bh), cf,
+				    d_key_position);
+	/*            internal_insert_key (tb->L[h], B_NR_ITEM(tb->L[h]), tb->CFL[h], tb->lkey[h]); */
 
-  /* last parameter is del_parameter */
-  internal_move_pointers_items (&dest_bi, &src_bi, FIRST_TO_LAST, pointer_amount, 1);
-  /*	internal_move_pointers_items (tb->L[h], tb->S[h], FIRST_TO_LAST, pointer_amount, 1);*/
+	/* last parameter is del_parameter */
+	internal_move_pointers_items(&dest_bi, &src_bi, FIRST_TO_LAST,
+				     pointer_amount, 1);
+	/*    internal_move_pointers_items (tb->L[h], tb->S[h], FIRST_TO_LAST, pointer_amount, 1); */
 }
 
-
 /* Insert d_key'th (delimiting) key from buffer cfr to head of dest. 
  * Copy n node pointers and n - 1 items from buffer src to buffer dest.
  * Replace  d_key'th key in buffer cfr.
  * Delete n items and node pointers from buffer src.
  */
-static void internal_shift_right (
-				  int mode,	/* INTERNAL_FROM_S_TO_R | INTERNAL_FROM_L_TO_S */
-				  struct tree_balance * tb,
-				  int h,
-				  int pointer_amount
-				  )
+static void internal_shift_right(int mode,	/* INTERNAL_FROM_S_TO_R | INTERNAL_FROM_L_TO_S */
+				 struct tree_balance *tb,
+				 int h, int pointer_amount)
 {
-  struct buffer_info dest_bi, src_bi;
-  struct buffer_head * cf;
-  int d_key_position;
-  int nr;
-
-
-  internal_define_dest_src_infos (mode, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
-
-  nr = B_NR_ITEMS (src_bi.bi_bh);
-
-  if (pointer_amount > 0) {
-    /* insert delimiting key from common father of dest and src to dest node into position 0 */
-    internal_insert_key (&dest_bi, 0, cf, d_key_position);
-    if (nr == pointer_amount - 1) {
-	 RFALSE( src_bi.bi_bh != PATH_H_PBUFFER (tb->tb_path, h)/*tb->S[h]*/ || 
-		 dest_bi.bi_bh != tb->R[h],
-		 "src (%p) must be == tb->S[h](%p) when it disappears",
-		 src_bi.bi_bh, PATH_H_PBUFFER (tb->tb_path, h));
-      /* when S[h] disappers replace left delemiting key as well */
-      if (tb->CFL[h])
-	replace_key (tb, cf, d_key_position, tb->CFL[h], tb->lkey[h]);
-    } else
-      replace_key (tb, cf, d_key_position, src_bi.bi_bh, nr - pointer_amount);
-  }      
-
-  /* last parameter is del_parameter */
-  internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, pointer_amount, 0);
+	struct buffer_info dest_bi, src_bi;
+	struct buffer_head *cf;
+	int d_key_position;
+	int nr;
+
+	internal_define_dest_src_infos(mode, tb, h, &dest_bi, &src_bi,
+				       &d_key_position, &cf);
+
+	nr = B_NR_ITEMS(src_bi.bi_bh);
+
+	if (pointer_amount > 0) {
+		/* insert delimiting key from common father of dest and src to dest node into position 0 */
+		internal_insert_key(&dest_bi, 0, cf, d_key_position);
+		if (nr == pointer_amount - 1) {
+			RFALSE(src_bi.bi_bh != PATH_H_PBUFFER(tb->tb_path, h) /*tb->S[h] */ ||
+			       dest_bi.bi_bh != tb->R[h],
+			       "src (%p) must be == tb->S[h](%p) when it disappears",
+			       src_bi.bi_bh, PATH_H_PBUFFER(tb->tb_path, h));
+			/* when S[h] disappers replace left delemiting key as well */
+			if (tb->CFL[h])
+				replace_key(tb, cf, d_key_position, tb->CFL[h],
+					    tb->lkey[h]);
+		} else
+			replace_key(tb, cf, d_key_position, src_bi.bi_bh,
+				    nr - pointer_amount);
+	}
+
+	/* last parameter is del_parameter */
+	internal_move_pointers_items(&dest_bi, &src_bi, LAST_TO_FIRST,
+				     pointer_amount, 0);
 }
 
 /* Insert delimiting key to R[h].
@@ -561,498 +565,526 @@ static void internal_shift_right (
  * Delete n - 1 items and node pointers from buffer S[h].
  */
 /* it always shift from S[h] to R[h] */
-static void	internal_shift1_right (
-				       struct tree_balance * tb, 
-				       int h, 
-				       int pointer_amount
-				       )
+static void internal_shift1_right(struct tree_balance *tb,
+				  int h, int pointer_amount)
 {
-  struct buffer_info dest_bi, src_bi;
-  struct buffer_head * cf;
-  int d_key_position;
-
-  internal_define_dest_src_infos (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, &dest_bi, &src_bi, &d_key_position, &cf);
-
-  if (pointer_amount > 0) /* insert rkey from CFR[h] to right neighbor R[h] */
-    internal_insert_key (&dest_bi, 0, cf, d_key_position);
-  /*		internal_insert_key (tb->R[h], 0, tb->CFR[h], tb->rkey[h]);*/
-	
-  /* last parameter is del_parameter */
-  internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, pointer_amount, 1);
-  /*	internal_move_pointers_items (tb->R[h], tb->S[h], LAST_TO_FIRST, pointer_amount, 1);*/
-}
+	struct buffer_info dest_bi, src_bi;
+	struct buffer_head *cf;
+	int d_key_position;
+
+	internal_define_dest_src_infos(INTERNAL_SHIFT_FROM_S_TO_R, tb, h,
+				       &dest_bi, &src_bi, &d_key_position, &cf);
+
+	if (pointer_amount > 0)	/* insert rkey from CFR[h] to right neighbor R[h] */
+		internal_insert_key(&dest_bi, 0, cf, d_key_position);
+	/*            internal_insert_key (tb->R[h], 0, tb->CFR[h], tb->rkey[h]); */
 
+	/* last parameter is del_parameter */
+	internal_move_pointers_items(&dest_bi, &src_bi, LAST_TO_FIRST,
+				     pointer_amount, 1);
+	/*    internal_move_pointers_items (tb->R[h], tb->S[h], LAST_TO_FIRST, pointer_amount, 1); */
+}
 
 /* Delete insert_num node pointers together with their left items
  * and balance current node.*/
-static void balance_internal_when_delete (struct tree_balance * tb, 
-					  int h, int child_pos)
+static void balance_internal_when_delete(struct tree_balance *tb,
+					 int h, int child_pos)
 {
-    int insert_num;
-    int n;
-    struct buffer_head * tbSh = PATH_H_PBUFFER (tb->tb_path, h);
-    struct buffer_info bi;
-
-    insert_num = tb->insert_size[h] / ((int)(DC_SIZE + KEY_SIZE));
-  
-    /* delete child-node-pointer(s) together with their left item(s) */
-    bi.tb = tb;
-    bi.bi_bh = tbSh;
-    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-    bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-
-    internal_delete_childs (&bi, child_pos, -insert_num);
-
-    RFALSE( tb->blknum[h] > 1,
-	    "tb->blknum[%d]=%d when insert_size < 0", h, tb->blknum[h]);
-
-    n = B_NR_ITEMS(tbSh);
-
-    if ( tb->lnum[h] == 0 && tb->rnum[h] == 0 ) {
-	if ( tb->blknum[h] == 0 ) {
-	    /* node S[h] (root of the tree) is empty now */
-	    struct buffer_head *new_root;
-
-	    RFALSE( n || B_FREE_SPACE (tbSh) != MAX_CHILD_SIZE(tbSh) - DC_SIZE,
-		    "buffer must have only 0 keys (%d)", n);
-	    RFALSE( bi.bi_parent, "root has parent (%p)", bi.bi_parent);
-		
-	    /* choose a new root */
-	    if ( ! tb->L[h-1] || ! B_NR_ITEMS(tb->L[h-1]) )
-		new_root = tb->R[h-1];
-	    else
-		new_root = tb->L[h-1];
-	    /* switch super block's tree root block number to the new value */
-            PUT_SB_ROOT_BLOCK( tb->tb_sb, new_root->b_blocknr );
-	    //REISERFS_SB(tb->tb_sb)->s_rs->s_tree_height --;
-            PUT_SB_TREE_HEIGHT( tb->tb_sb, SB_TREE_HEIGHT(tb->tb_sb) - 1 );
-
-	    do_balance_mark_sb_dirty (tb, REISERFS_SB(tb->tb_sb)->s_sbh, 1);
-	    /*&&&&&&&&&&&&&&&&&&&&&&*/
-	    if (h > 1)
-		/* use check_internal if new root is an internal node */
-		check_internal (new_root);
-	    /*&&&&&&&&&&&&&&&&&&&&&&*/
-
-	    /* do what is needed for buffer thrown from tree */
-	    reiserfs_invalidate_buffer(tb, tbSh);
-	    return;
+	int insert_num;
+	int n;
+	struct buffer_head *tbSh = PATH_H_PBUFFER(tb->tb_path, h);
+	struct buffer_info bi;
+
+	insert_num = tb->insert_size[h] / ((int)(DC_SIZE + KEY_SIZE));
+
+	/* delete child-node-pointer(s) together with their left item(s) */
+	bi.tb = tb;
+	bi.bi_bh = tbSh;
+	bi.bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+	bi.bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+
+	internal_delete_childs(&bi, child_pos, -insert_num);
+
+	RFALSE(tb->blknum[h] > 1,
+	       "tb->blknum[%d]=%d when insert_size < 0", h, tb->blknum[h]);
+
+	n = B_NR_ITEMS(tbSh);
+
+	if (tb->lnum[h] == 0 && tb->rnum[h] == 0) {
+		if (tb->blknum[h] == 0) {
+			/* node S[h] (root of the tree) is empty now */
+			struct buffer_head *new_root;
+
+			RFALSE(n
+			       || B_FREE_SPACE(tbSh) !=
+			       MAX_CHILD_SIZE(tbSh) - DC_SIZE,
+			       "buffer must have only 0 keys (%d)", n);
+			RFALSE(bi.bi_parent, "root has parent (%p)",
+			       bi.bi_parent);
+
+			/* choose a new root */
+			if (!tb->L[h - 1] || !B_NR_ITEMS(tb->L[h - 1]))
+				new_root = tb->R[h - 1];
+			else
+				new_root = tb->L[h - 1];
+			/* switch super block's tree root block number to the new value */
+			PUT_SB_ROOT_BLOCK(tb->tb_sb, new_root->b_blocknr);
+			//REISERFS_SB(tb->tb_sb)->s_rs->s_tree_height --;
+			PUT_SB_TREE_HEIGHT(tb->tb_sb,
+					   SB_TREE_HEIGHT(tb->tb_sb) - 1);
+
+			do_balance_mark_sb_dirty(tb,
+						 REISERFS_SB(tb->tb_sb)->s_sbh,
+						 1);
+			/*&&&&&&&&&&&&&&&&&&&&&& */
+			if (h > 1)
+				/* use check_internal if new root is an internal node */
+				check_internal(new_root);
+			/*&&&&&&&&&&&&&&&&&&&&&& */
+
+			/* do what is needed for buffer thrown from tree */
+			reiserfs_invalidate_buffer(tb, tbSh);
+			return;
+		}
+		return;
+	}
+
+	if (tb->L[h] && tb->lnum[h] == -B_NR_ITEMS(tb->L[h]) - 1) {	/* join S[h] with L[h] */
+
+		RFALSE(tb->rnum[h] != 0,
+		       "invalid tb->rnum[%d]==%d when joining S[h] with L[h]",
+		       h, tb->rnum[h]);
+
+		internal_shift_left(INTERNAL_SHIFT_FROM_S_TO_L, tb, h, n + 1);
+		reiserfs_invalidate_buffer(tb, tbSh);
+
+		return;
+	}
+
+	if (tb->R[h] && tb->rnum[h] == -B_NR_ITEMS(tb->R[h]) - 1) {	/* join S[h] with R[h] */
+		RFALSE(tb->lnum[h] != 0,
+		       "invalid tb->lnum[%d]==%d when joining S[h] with R[h]",
+		       h, tb->lnum[h]);
+
+		internal_shift_right(INTERNAL_SHIFT_FROM_S_TO_R, tb, h, n + 1);
+
+		reiserfs_invalidate_buffer(tb, tbSh);
+		return;
 	}
-	return;
-    }
-
-    if ( tb->L[h] && tb->lnum[h] == -B_NR_ITEMS(tb->L[h]) - 1 ) { /* join S[h] with L[h] */
-
-	RFALSE( tb->rnum[h] != 0,
-		"invalid tb->rnum[%d]==%d when joining S[h] with L[h]",
-		h, tb->rnum[h]);
-
-	internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, n + 1);
-	reiserfs_invalidate_buffer(tb, tbSh);
-
-	return;
-    }
-
-    if ( tb->R[h] &&  tb->rnum[h] == -B_NR_ITEMS(tb->R[h]) - 1 ) { /* join S[h] with R[h] */
-	RFALSE( tb->lnum[h] != 0,
-		"invalid tb->lnum[%d]==%d when joining S[h] with R[h]",
-		h, tb->lnum[h]);
-
-	internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, n + 1);
-
-	reiserfs_invalidate_buffer(tb,tbSh);
-	return;
-    }
-
-    if ( tb->lnum[h] < 0 ) { /* borrow from left neighbor L[h] */
-	RFALSE( tb->rnum[h] != 0,
-		"wrong tb->rnum[%d]==%d when borrow from L[h]", h, tb->rnum[h]);
-	/*internal_shift_right (tb, h, tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], -tb->lnum[h]);*/
-	internal_shift_right (INTERNAL_SHIFT_FROM_L_TO_S, tb, h, -tb->lnum[h]);
-	return;
-    }
-
-    if ( tb->rnum[h] < 0 ) { /* borrow from right neighbor R[h] */
-	 RFALSE( tb->lnum[h] != 0,
-		 "invalid tb->lnum[%d]==%d when borrow from R[h]", 
-		 h, tb->lnum[h]);
-	internal_shift_left (INTERNAL_SHIFT_FROM_R_TO_S, tb, h, -tb->rnum[h]);/*tb->S[h], tb->CFR[h], tb->rkey[h], tb->R[h], -tb->rnum[h]);*/
-	return;
-    }
-
-    if ( tb->lnum[h] > 0 ) { /* split S[h] into two parts and put them into neighbors */
-	RFALSE( tb->rnum[h] == 0 || tb->lnum[h] + tb->rnum[h] != n + 1,
-		"invalid tb->lnum[%d]==%d or tb->rnum[%d]==%d when S[h](item number == %d) is split between them",
-		h, tb->lnum[h], h, tb->rnum[h], n);
-
-	internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h]);/*tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], tb->lnum[h]);*/
-	internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h]);
-
-	reiserfs_invalidate_buffer (tb, tbSh);
-
-	return;
-    }
-    reiserfs_panic (tb->tb_sb, "balance_internal_when_delete: unexpected tb->lnum[%d]==%d or tb->rnum[%d]==%d",
-		    h, tb->lnum[h], h, tb->rnum[h]);
-}
 
+	if (tb->lnum[h] < 0) {	/* borrow from left neighbor L[h] */
+		RFALSE(tb->rnum[h] != 0,
+		       "wrong tb->rnum[%d]==%d when borrow from L[h]", h,
+		       tb->rnum[h]);
+		/*internal_shift_right (tb, h, tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], -tb->lnum[h]); */
+		internal_shift_right(INTERNAL_SHIFT_FROM_L_TO_S, tb, h,
+				     -tb->lnum[h]);
+		return;
+	}
+
+	if (tb->rnum[h] < 0) {	/* borrow from right neighbor R[h] */
+		RFALSE(tb->lnum[h] != 0,
+		       "invalid tb->lnum[%d]==%d when borrow from R[h]",
+		       h, tb->lnum[h]);
+		internal_shift_left(INTERNAL_SHIFT_FROM_R_TO_S, tb, h, -tb->rnum[h]);	/*tb->S[h], tb->CFR[h], tb->rkey[h], tb->R[h], -tb->rnum[h]); */
+		return;
+	}
+
+	if (tb->lnum[h] > 0) {	/* split S[h] into two parts and put them into neighbors */
+		RFALSE(tb->rnum[h] == 0 || tb->lnum[h] + tb->rnum[h] != n + 1,
+		       "invalid tb->lnum[%d]==%d or tb->rnum[%d]==%d when S[h](item number == %d) is split between them",
+		       h, tb->lnum[h], h, tb->rnum[h], n);
+
+		internal_shift_left(INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h]);	/*tb->L[h], tb->CFL[h], tb->lkey[h], tb->S[h], tb->lnum[h]); */
+		internal_shift_right(INTERNAL_SHIFT_FROM_S_TO_R, tb, h,
+				     tb->rnum[h]);
+
+		reiserfs_invalidate_buffer(tb, tbSh);
+
+		return;
+	}
+	reiserfs_panic(tb->tb_sb,
+		       "balance_internal_when_delete: unexpected tb->lnum[%d]==%d or tb->rnum[%d]==%d",
+		       h, tb->lnum[h], h, tb->rnum[h]);
+}
 
 /* Replace delimiting key of buffers L[h] and S[h] by the given key.*/
-static void replace_lkey (
-		      struct tree_balance * tb,
-		      int h,
-		      struct item_head * key
-		      )
+static void replace_lkey(struct tree_balance *tb, int h, struct item_head *key)
 {
-   RFALSE( tb->L[h] == NULL || tb->CFL[h] == NULL,
-	   "L[h](%p) and CFL[h](%p) must exist in replace_lkey", 
-	   tb->L[h], tb->CFL[h]);
+	RFALSE(tb->L[h] == NULL || tb->CFL[h] == NULL,
+	       "L[h](%p) and CFL[h](%p) must exist in replace_lkey",
+	       tb->L[h], tb->CFL[h]);
 
-  if (B_NR_ITEMS(PATH_H_PBUFFER(tb->tb_path, h)) == 0)
-    return;
+	if (B_NR_ITEMS(PATH_H_PBUFFER(tb->tb_path, h)) == 0)
+		return;
 
-  memcpy (B_N_PDELIM_KEY(tb->CFL[h],tb->lkey[h]), key, KEY_SIZE);
+	memcpy(B_N_PDELIM_KEY(tb->CFL[h], tb->lkey[h]), key, KEY_SIZE);
 
-  do_balance_mark_internal_dirty (tb, tb->CFL[h],0);
+	do_balance_mark_internal_dirty(tb, tb->CFL[h], 0);
 }
 
-
 /* Replace delimiting key of buffers S[h] and R[h] by the given key.*/
-static void replace_rkey (
-		      struct tree_balance * tb,
-		      int h,
-		      struct item_head * key
-		      )
+static void replace_rkey(struct tree_balance *tb, int h, struct item_head *key)
 {
-  RFALSE( tb->R[h] == NULL || tb->CFR[h] == NULL,
-	  "R[h](%p) and CFR[h](%p) must exist in replace_rkey", 
-	  tb->R[h], tb->CFR[h]);
-  RFALSE( B_NR_ITEMS(tb->R[h]) == 0,
-	  "R[h] can not be empty if it exists (item number=%d)", 
-	  B_NR_ITEMS(tb->R[h]));
+	RFALSE(tb->R[h] == NULL || tb->CFR[h] == NULL,
+	       "R[h](%p) and CFR[h](%p) must exist in replace_rkey",
+	       tb->R[h], tb->CFR[h]);
+	RFALSE(B_NR_ITEMS(tb->R[h]) == 0,
+	       "R[h] can not be empty if it exists (item number=%d)",
+	       B_NR_ITEMS(tb->R[h]));
 
-  memcpy (B_N_PDELIM_KEY(tb->CFR[h],tb->rkey[h]), key, KEY_SIZE);
+	memcpy(B_N_PDELIM_KEY(tb->CFR[h], tb->rkey[h]), key, KEY_SIZE);
 
-  do_balance_mark_internal_dirty (tb, tb->CFR[h], 0);
+	do_balance_mark_internal_dirty(tb, tb->CFR[h], 0);
 }
 
-
-int balance_internal (struct tree_balance * tb,			/* tree_balance structure 		*/
-		      int h,					/* level of the tree 			*/
-		      int child_pos,
-		      struct item_head * insert_key,		/* key for insertion on higher level   	*/
-		      struct buffer_head ** insert_ptr	/* node for insertion on higher level*/
+int balance_internal(struct tree_balance *tb,	/* tree_balance structure               */
+		     int h,	/* level of the tree                    */
+		     int child_pos, struct item_head *insert_key,	/* key for insertion on higher level    */
+		     struct buffer_head **insert_ptr	/* node for insertion on higher level */
     )
     /* if inserting/pasting
        {
-       child_pos is the position of the node-pointer in S[h] that	 *
-       pointed to S[h-1] before balancing of the h-1 level;		 *
+       child_pos is the position of the node-pointer in S[h] that        *
+       pointed to S[h-1] before balancing of the h-1 level;              *
        this means that new pointers and items must be inserted AFTER *
        child_pos
        }
        else 
        {
-   it is the position of the leftmost pointer that must be deleted (together with
-   its corresponding key to the left of the pointer)
-   as a result of the previous level's balancing.
-   }
-*/
+       it is the position of the leftmost pointer that must be deleted (together with
+       its corresponding key to the left of the pointer)
+       as a result of the previous level's balancing.
+       }
+     */
 {
-    struct buffer_head * tbSh = PATH_H_PBUFFER (tb->tb_path, h);
-    struct buffer_info bi;
-    int order;		/* we return this: it is 0 if there is no S[h], else it is tb->S[h]->b_item_order */
-    int insert_num, n, k;
-    struct buffer_head * S_new;
-    struct item_head new_insert_key;
-    struct buffer_head * new_insert_ptr = NULL;
-    struct item_head * new_insert_key_addr = insert_key;
-
-    RFALSE( h < 1, "h (%d) can not be < 1 on internal level", h);
-
-    PROC_INFO_INC( tb -> tb_sb, balance_at[ h ] );
-
-    order = ( tbSh ) ? PATH_H_POSITION (tb->tb_path, h + 1)/*tb->S[h]->b_item_order*/ : 0;
-
-  /* Using insert_size[h] calculate the number insert_num of items
-     that must be inserted to or deleted from S[h]. */
-    insert_num = tb->insert_size[h]/((int)(KEY_SIZE + DC_SIZE));
-
-    /* Check whether insert_num is proper **/
-    RFALSE( insert_num < -2  ||  insert_num > 2,
-	    "incorrect number of items inserted to the internal node (%d)", 
-	    insert_num);
-    RFALSE( h > 1  && (insert_num > 1 || insert_num < -1),
-	    "incorrect number of items (%d) inserted to the internal node on a level (h=%d) higher than last internal level", 
-	    insert_num, h);
-
-    /* Make balance in case insert_num < 0 */
-    if ( insert_num < 0 ) {
-	balance_internal_when_delete (tb, h, child_pos);
-	return order;
-    }
- 
-    k = 0;
-    if ( tb->lnum[h] > 0 ) {
-	/* shift lnum[h] items from S[h] to the left neighbor L[h].
-	   check how many of new items fall into L[h] or CFL[h] after
-	   shifting */
-	n = B_NR_ITEMS (tb->L[h]); /* number of items in L[h] */
-	if ( tb->lnum[h] <= child_pos ) {
-	    /* new items don't fall into L[h] or CFL[h] */
-	    internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h]);
-	    /*internal_shift_left (tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,tb->lnum[h]);*/
-	    child_pos -= tb->lnum[h];
-	} else if ( tb->lnum[h] > child_pos + insert_num ) {
-	    /* all new items fall into L[h] */
-	    internal_shift_left (INTERNAL_SHIFT_FROM_S_TO_L, tb, h, tb->lnum[h] - insert_num);
-	    /*			internal_shift_left(tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,
-				tb->lnum[h]-insert_num);
-	    */
-	    /* insert insert_num keys and node-pointers into L[h] */
-	    bi.tb = tb;
-	    bi.bi_bh = tb->L[h];
-	    bi.bi_parent = tb->FL[h];
-	    bi.bi_position = get_left_neighbor_position (tb, h);
-	    internal_insert_childs (&bi,/*tb->L[h], tb->S[h-1]->b_next*/ n + child_pos + 1,
-				    insert_num,insert_key,insert_ptr);
-
-	    insert_num = 0; 
-	} else {
-	    struct disk_child * dc;
-
-	    /* some items fall into L[h] or CFL[h], but some don't fall */
-	    internal_shift1_left(tb,h,child_pos+1);
-	    /* calculate number of new items that fall into L[h] */
-	    k = tb->lnum[h] - child_pos - 1;
-	    bi.tb = tb;
-	    bi.bi_bh = tb->L[h];
-	    bi.bi_parent = tb->FL[h];
-	    bi.bi_position = get_left_neighbor_position (tb, h);
-	    internal_insert_childs (&bi,/*tb->L[h], tb->S[h-1]->b_next,*/ n + child_pos + 1,k,
-				    insert_key,insert_ptr);
-
-	    replace_lkey(tb,h,insert_key + k);
-
-	    /* replace the first node-ptr in S[h] by node-ptr to insert_ptr[k] */
-	    dc = B_N_CHILD(tbSh, 0);
-	    put_dc_size( dc, MAX_CHILD_SIZE(insert_ptr[k]) - B_FREE_SPACE (insert_ptr[k]));
-	    put_dc_block_number( dc, insert_ptr[k]->b_blocknr );
-
-	    do_balance_mark_internal_dirty (tb, tbSh, 0);
-
-	    k++;
-	    insert_key += k;
-	    insert_ptr += k;
-	    insert_num -= k;
-	    child_pos = 0;
+	struct buffer_head *tbSh = PATH_H_PBUFFER(tb->tb_path, h);
+	struct buffer_info bi;
+	int order;		/* we return this: it is 0 if there is no S[h], else it is tb->S[h]->b_item_order */
+	int insert_num, n, k;
+	struct buffer_head *S_new;
+	struct item_head new_insert_key;
+	struct buffer_head *new_insert_ptr = NULL;
+	struct item_head *new_insert_key_addr = insert_key;
+
+	RFALSE(h < 1, "h (%d) can not be < 1 on internal level", h);
+
+	PROC_INFO_INC(tb->tb_sb, balance_at[h]);
+
+	order =
+	    (tbSh) ? PATH_H_POSITION(tb->tb_path,
+				     h + 1) /*tb->S[h]->b_item_order */ : 0;
+
+	/* Using insert_size[h] calculate the number insert_num of items
+	   that must be inserted to or deleted from S[h]. */
+	insert_num = tb->insert_size[h] / ((int)(KEY_SIZE + DC_SIZE));
+
+	/* Check whether insert_num is proper * */
+	RFALSE(insert_num < -2 || insert_num > 2,
+	       "incorrect number of items inserted to the internal node (%d)",
+	       insert_num);
+	RFALSE(h > 1 && (insert_num > 1 || insert_num < -1),
+	       "incorrect number of items (%d) inserted to the internal node on a level (h=%d) higher than last internal level",
+	       insert_num, h);
+
+	/* Make balance in case insert_num < 0 */
+	if (insert_num < 0) {
+		balance_internal_when_delete(tb, h, child_pos);
+		return order;
 	}
-    }	/* tb->lnum[h] > 0 */
-
-    if ( tb->rnum[h] > 0 ) {
-	/*shift rnum[h] items from S[h] to the right neighbor R[h]*/
-	/* check how many of new items fall into R or CFR after shifting */
-	n = B_NR_ITEMS (tbSh); /* number of items in S[h] */
-	if ( n - tb->rnum[h] >= child_pos )
-	    /* new items fall into S[h] */
-	    /*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],tb->rnum[h]);*/
-	    internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h]);
-	else
-	    if ( n + insert_num - tb->rnum[h] < child_pos )
-	    {
-		/* all new items fall into R[h] */
-		/*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],
-	    tb->rnum[h] - insert_num);*/
-		internal_shift_right (INTERNAL_SHIFT_FROM_S_TO_R, tb, h, tb->rnum[h] - insert_num);
-
-		/* insert insert_num keys and node-pointers into R[h] */
-		bi.tb = tb;
-		bi.bi_bh = tb->R[h];
-		bi.bi_parent = tb->FR[h];
-		bi.bi_position = get_right_neighbor_position (tb, h);
-		internal_insert_childs (&bi, /*tb->R[h],tb->S[h-1]->b_next*/ child_pos - n - insert_num + tb->rnum[h] - 1,
-					insert_num,insert_key,insert_ptr);
-		insert_num = 0;
-	    }
-	    else
-	    {
-		struct disk_child * dc;
-
-		/* one of the items falls into CFR[h] */
-		internal_shift1_right(tb,h,n - child_pos + 1);
-		/* calculate number of new items that fall into R[h] */
-		k = tb->rnum[h] - n + child_pos - 1;
-		bi.tb = tb;
-		bi.bi_bh = tb->R[h];
-		bi.bi_parent = tb->FR[h];
-		bi.bi_position = get_right_neighbor_position (tb, h);
-		internal_insert_childs (&bi, /*tb->R[h], tb->R[h]->b_child,*/ 0, k, insert_key + 1, insert_ptr + 1);
 
-		replace_rkey(tb,h,insert_key + insert_num - k - 1);
+	k = 0;
+	if (tb->lnum[h] > 0) {
+		/* shift lnum[h] items from S[h] to the left neighbor L[h].
+		   check how many of new items fall into L[h] or CFL[h] after
+		   shifting */
+		n = B_NR_ITEMS(tb->L[h]);	/* number of items in L[h] */
+		if (tb->lnum[h] <= child_pos) {
+			/* new items don't fall into L[h] or CFL[h] */
+			internal_shift_left(INTERNAL_SHIFT_FROM_S_TO_L, tb, h,
+					    tb->lnum[h]);
+			/*internal_shift_left (tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,tb->lnum[h]); */
+			child_pos -= tb->lnum[h];
+		} else if (tb->lnum[h] > child_pos + insert_num) {
+			/* all new items fall into L[h] */
+			internal_shift_left(INTERNAL_SHIFT_FROM_S_TO_L, tb, h,
+					    tb->lnum[h] - insert_num);
+			/*                  internal_shift_left(tb->L[h],tb->CFL[h],tb->lkey[h],tbSh,
+			   tb->lnum[h]-insert_num);
+			 */
+			/* insert insert_num keys and node-pointers into L[h] */
+			bi.tb = tb;
+			bi.bi_bh = tb->L[h];
+			bi.bi_parent = tb->FL[h];
+			bi.bi_position = get_left_neighbor_position(tb, h);
+			internal_insert_childs(&bi,
+					       /*tb->L[h], tb->S[h-1]->b_next */
+					       n + child_pos + 1,
+					       insert_num, insert_key,
+					       insert_ptr);
+
+			insert_num = 0;
+		} else {
+			struct disk_child *dc;
+
+			/* some items fall into L[h] or CFL[h], but some don't fall */
+			internal_shift1_left(tb, h, child_pos + 1);
+			/* calculate number of new items that fall into L[h] */
+			k = tb->lnum[h] - child_pos - 1;
+			bi.tb = tb;
+			bi.bi_bh = tb->L[h];
+			bi.bi_parent = tb->FL[h];
+			bi.bi_position = get_left_neighbor_position(tb, h);
+			internal_insert_childs(&bi,
+					       /*tb->L[h], tb->S[h-1]->b_next, */
+					       n + child_pos + 1, k,
+					       insert_key, insert_ptr);
+
+			replace_lkey(tb, h, insert_key + k);
+
+			/* replace the first node-ptr in S[h] by node-ptr to insert_ptr[k] */
+			dc = B_N_CHILD(tbSh, 0);
+			put_dc_size(dc,
+				    MAX_CHILD_SIZE(insert_ptr[k]) -
+				    B_FREE_SPACE(insert_ptr[k]));
+			put_dc_block_number(dc, insert_ptr[k]->b_blocknr);
+
+			do_balance_mark_internal_dirty(tb, tbSh, 0);
+
+			k++;
+			insert_key += k;
+			insert_ptr += k;
+			insert_num -= k;
+			child_pos = 0;
+		}
+	}
+	/* tb->lnum[h] > 0 */
+	if (tb->rnum[h] > 0) {
+		/*shift rnum[h] items from S[h] to the right neighbor R[h] */
+		/* check how many of new items fall into R or CFR after shifting */
+		n = B_NR_ITEMS(tbSh);	/* number of items in S[h] */
+		if (n - tb->rnum[h] >= child_pos)
+			/* new items fall into S[h] */
+			/*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],tb->rnum[h]); */
+			internal_shift_right(INTERNAL_SHIFT_FROM_S_TO_R, tb, h,
+					     tb->rnum[h]);
+		else if (n + insert_num - tb->rnum[h] < child_pos) {
+			/* all new items fall into R[h] */
+			/*internal_shift_right(tb,h,tbSh,tb->CFR[h],tb->rkey[h],tb->R[h],
+			   tb->rnum[h] - insert_num); */
+			internal_shift_right(INTERNAL_SHIFT_FROM_S_TO_R, tb, h,
+					     tb->rnum[h] - insert_num);
+
+			/* insert insert_num keys and node-pointers into R[h] */
+			bi.tb = tb;
+			bi.bi_bh = tb->R[h];
+			bi.bi_parent = tb->FR[h];
+			bi.bi_position = get_right_neighbor_position(tb, h);
+			internal_insert_childs(&bi,
+					       /*tb->R[h],tb->S[h-1]->b_next */
+					       child_pos - n - insert_num +
+					       tb->rnum[h] - 1,
+					       insert_num, insert_key,
+					       insert_ptr);
+			insert_num = 0;
+		} else {
+			struct disk_child *dc;
+
+			/* one of the items falls into CFR[h] */
+			internal_shift1_right(tb, h, n - child_pos + 1);
+			/* calculate number of new items that fall into R[h] */
+			k = tb->rnum[h] - n + child_pos - 1;
+			bi.tb = tb;
+			bi.bi_bh = tb->R[h];
+			bi.bi_parent = tb->FR[h];
+			bi.bi_position = get_right_neighbor_position(tb, h);
+			internal_insert_childs(&bi,
+					       /*tb->R[h], tb->R[h]->b_child, */
+					       0, k, insert_key + 1,
+					       insert_ptr + 1);
+
+			replace_rkey(tb, h, insert_key + insert_num - k - 1);
+
+			/* replace the first node-ptr in R[h] by node-ptr insert_ptr[insert_num-k-1] */
+			dc = B_N_CHILD(tb->R[h], 0);
+			put_dc_size(dc,
+				    MAX_CHILD_SIZE(insert_ptr
+						   [insert_num - k - 1]) -
+				    B_FREE_SPACE(insert_ptr
+						 [insert_num - k - 1]));
+			put_dc_block_number(dc,
+					    insert_ptr[insert_num - k -
+						       1]->b_blocknr);
+
+			do_balance_mark_internal_dirty(tb, tb->R[h], 0);
+
+			insert_num -= (k + 1);
+		}
+	}
 
-		/* replace the first node-ptr in R[h] by node-ptr insert_ptr[insert_num-k-1]*/
-		dc = B_N_CHILD(tb->R[h], 0);
-		put_dc_size( dc, MAX_CHILD_SIZE(insert_ptr[insert_num-k-1]) -
-    				    B_FREE_SPACE (insert_ptr[insert_num-k-1]));
-		put_dc_block_number( dc, insert_ptr[insert_num-k-1]->b_blocknr );
+    /** Fill new node that appears instead of S[h] **/
+	RFALSE(tb->blknum[h] > 2, "blknum can not be > 2 for internal level");
+	RFALSE(tb->blknum[h] < 0, "blknum can not be < 0");
 
-		do_balance_mark_internal_dirty (tb, tb->R[h],0);
+	if (!tb->blknum[h]) {	/* node S[h] is empty now */
+		RFALSE(!tbSh, "S[h] is equal NULL");
 
-		insert_num -= (k + 1);
-	    }
-    }
+		/* do what is needed for buffer thrown from tree */
+		reiserfs_invalidate_buffer(tb, tbSh);
+		return order;
+	}
 
-    /** Fill new node that appears instead of S[h] **/
-    RFALSE( tb->blknum[h] > 2, "blknum can not be > 2 for internal level");
-    RFALSE( tb->blknum[h] < 0, "blknum can not be < 0");
+	if (!tbSh) {
+		/* create new root */
+		struct disk_child *dc;
+		struct buffer_head *tbSh_1 = PATH_H_PBUFFER(tb->tb_path, h - 1);
+		struct block_head *blkh;
 
-    if ( ! tb->blknum[h] )
-    { /* node S[h] is empty now */
-	RFALSE( ! tbSh, "S[h] is equal NULL");
+		if (tb->blknum[h] != 1)
+			reiserfs_panic(NULL,
+				       "balance_internal: One new node required for creating the new root");
+		/* S[h] = empty buffer from the list FEB. */
+		tbSh = get_FEB(tb);
+		blkh = B_BLK_HEAD(tbSh);
+		set_blkh_level(blkh, h + 1);
 
-	/* do what is needed for buffer thrown from tree */
-	reiserfs_invalidate_buffer(tb,tbSh);
-	return order;
-    }
-
-    if ( ! tbSh ) {
-	/* create new root */
-	struct disk_child  * dc;
-	struct buffer_head * tbSh_1 = PATH_H_PBUFFER (tb->tb_path, h - 1);
-        struct block_head *  blkh;
-
-
-	if ( tb->blknum[h] != 1 )
-	    reiserfs_panic(NULL, "balance_internal: One new node required for creating the new root");
-	/* S[h] = empty buffer from the list FEB. */
-	tbSh = get_FEB (tb);
-        blkh = B_BLK_HEAD(tbSh);
-        set_blkh_level( blkh, h + 1 );
-
-	/* Put the unique node-pointer to S[h] that points to S[h-1]. */
-
-	dc = B_N_CHILD(tbSh, 0);
-	put_dc_block_number( dc, tbSh_1->b_blocknr );
-	put_dc_size( dc, (MAX_CHILD_SIZE (tbSh_1) - B_FREE_SPACE (tbSh_1)));
-
-	tb->insert_size[h] -= DC_SIZE;
-        set_blkh_free_space( blkh, blkh_free_space(blkh) - DC_SIZE );
-
-	do_balance_mark_internal_dirty (tb, tbSh, 0);
-
-	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
-	check_internal (tbSh);
-	/*&&&&&&&&&&&&&&&&&&&&&&&&*/
-    
-    /* put new root into path structure */
-	PATH_OFFSET_PBUFFER(tb->tb_path, ILLEGAL_PATH_ELEMENT_OFFSET) = tbSh;
-
-	/* Change root in structure super block. */
-        PUT_SB_ROOT_BLOCK( tb->tb_sb, tbSh->b_blocknr );
-        PUT_SB_TREE_HEIGHT( tb->tb_sb, SB_TREE_HEIGHT(tb->tb_sb) + 1 );
-	do_balance_mark_sb_dirty (tb, REISERFS_SB(tb->tb_sb)->s_sbh, 1);
-    }
-	
-    if ( tb->blknum[h] == 2 ) {
-	int snum;
-	struct buffer_info dest_bi, src_bi;
+		/* Put the unique node-pointer to S[h] that points to S[h-1]. */
+
+		dc = B_N_CHILD(tbSh, 0);
+		put_dc_block_number(dc, tbSh_1->b_blocknr);
+		put_dc_size(dc,
+			    (MAX_CHILD_SIZE(tbSh_1) - B_FREE_SPACE(tbSh_1)));
+
+		tb->insert_size[h] -= DC_SIZE;
+		set_blkh_free_space(blkh, blkh_free_space(blkh) - DC_SIZE);
 
+		do_balance_mark_internal_dirty(tb, tbSh, 0);
 
-	/* S_new = free buffer from list FEB */
-	S_new = get_FEB(tb);
-
-        set_blkh_level( B_BLK_HEAD(S_new), h + 1 );
-
-	dest_bi.tb = tb;
-	dest_bi.bi_bh = S_new;
-	dest_bi.bi_parent = NULL;
-	dest_bi.bi_position = 0;
-	src_bi.tb = tb;
-	src_bi.bi_bh = tbSh;
-	src_bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	src_bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-		
-	n = B_NR_ITEMS (tbSh); /* number of items in S[h] */
-	snum = (insert_num + n + 1)/2;
-	if ( n - snum >= child_pos ) {
-	    /* new items don't fall into S_new */
-	    /*	store the delimiting key for the next level */
-	    /* new_insert_key = (n - snum)'th key in S[h] */
-	    memcpy (&new_insert_key,B_N_PDELIM_KEY(tbSh,n - snum),
-		    KEY_SIZE);
-	    /* last parameter is del_par */
-	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, snum, 0);
-	    /*            internal_move_pointers_items(S_new, tbSh, LAST_TO_FIRST, snum, 0);*/
-	} else if ( n + insert_num - snum < child_pos ) {
-	    /* all new items fall into S_new */
-	    /*	store the delimiting key for the next level */
-	    /* new_insert_key = (n + insert_item - snum)'th key in S[h] */
-	    memcpy(&new_insert_key,B_N_PDELIM_KEY(tbSh,n + insert_num - snum),
-		   KEY_SIZE);
-	    /* last parameter is del_par */
-	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, snum - insert_num, 0);
-	    /*			internal_move_pointers_items(S_new,tbSh,1,snum - insert_num,0);*/
-
-	    /* insert insert_num keys and node-pointers into S_new */
-	    internal_insert_childs (&dest_bi, /*S_new,tb->S[h-1]->b_next,*/child_pos - n - insert_num + snum - 1,
-				    insert_num,insert_key,insert_ptr);
-
-	    insert_num = 0;
-	} else {
-	    struct disk_child * dc;
-
-	    /* some items fall into S_new, but some don't fall */
-	    /* last parameter is del_par */
-	    internal_move_pointers_items (&dest_bi, &src_bi, LAST_TO_FIRST, n - child_pos + 1, 1);
-	    /*			internal_move_pointers_items(S_new,tbSh,1,n - child_pos + 1,1);*/
-	    /* calculate number of new items that fall into S_new */
-	    k = snum - n + child_pos - 1;
-
-	    internal_insert_childs (&dest_bi, /*S_new,*/ 0, k, insert_key + 1, insert_ptr+1);
-
-	    /* new_insert_key = insert_key[insert_num - k - 1] */
-	    memcpy(&new_insert_key,insert_key + insert_num - k - 1,
-		   KEY_SIZE);
-	    /* replace first node-ptr in S_new by node-ptr to insert_ptr[insert_num-k-1] */
-
-	    dc = B_N_CHILD(S_new,0);
-	    put_dc_size( dc, (MAX_CHILD_SIZE(insert_ptr[insert_num-k-1]) -
-				B_FREE_SPACE(insert_ptr[insert_num-k-1])) );
-	    put_dc_block_number( dc, insert_ptr[insert_num-k-1]->b_blocknr );
-
-	    do_balance_mark_internal_dirty (tb, S_new,0);
-			
-	    insert_num -= (k + 1);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+		check_internal(tbSh);
+		/*&&&&&&&&&&&&&&&&&&&&&&&& */
+
+		/* put new root into path structure */
+		PATH_OFFSET_PBUFFER(tb->tb_path, ILLEGAL_PATH_ELEMENT_OFFSET) =
+		    tbSh;
+
+		/* Change root in structure super block. */
+		PUT_SB_ROOT_BLOCK(tb->tb_sb, tbSh->b_blocknr);
+		PUT_SB_TREE_HEIGHT(tb->tb_sb, SB_TREE_HEIGHT(tb->tb_sb) + 1);
+		do_balance_mark_sb_dirty(tb, REISERFS_SB(tb->tb_sb)->s_sbh, 1);
 	}
-	/* new_insert_ptr = node_pointer to S_new */
-	new_insert_ptr = S_new;
-
-	RFALSE (!buffer_journaled(S_new) || buffer_journal_dirty(S_new) ||
-		buffer_dirty (S_new),
-		"cm-00001: bad S_new (%b)", S_new);
-
-	// S_new is released in unfix_nodes
-    }
-
-    n = B_NR_ITEMS (tbSh); /*number of items in S[h] */
-
-	if ( 0 <= child_pos && child_pos <= n && insert_num > 0 ) {
-	    bi.tb = tb;
-	    bi.bi_bh = tbSh;
-	    bi.bi_parent = PATH_H_PPARENT (tb->tb_path, h);
-	    bi.bi_position = PATH_H_POSITION (tb->tb_path, h + 1);
-		internal_insert_childs (
-		    &bi,/*tbSh,*/
-		    /*		( tb->S[h-1]->b_parent == tb->S[h] ) ? tb->S[h-1]->b_next :  tb->S[h]->b_child->b_next,*/
-		    child_pos,insert_num,insert_key,insert_ptr
-		    );
+
+	if (tb->blknum[h] == 2) {
+		int snum;
+		struct buffer_info dest_bi, src_bi;
+
+		/* S_new = free buffer from list FEB */
+		S_new = get_FEB(tb);
+
+		set_blkh_level(B_BLK_HEAD(S_new), h + 1);
+
+		dest_bi.tb = tb;
+		dest_bi.bi_bh = S_new;
+		dest_bi.bi_parent = NULL;
+		dest_bi.bi_position = 0;
+		src_bi.tb = tb;
+		src_bi.bi_bh = tbSh;
+		src_bi.bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		src_bi.bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+
+		n = B_NR_ITEMS(tbSh);	/* number of items in S[h] */
+		snum = (insert_num + n + 1) / 2;
+		if (n - snum >= child_pos) {
+			/* new items don't fall into S_new */
+			/*  store the delimiting key for the next level */
+			/* new_insert_key = (n - snum)'th key in S[h] */
+			memcpy(&new_insert_key, B_N_PDELIM_KEY(tbSh, n - snum),
+			       KEY_SIZE);
+			/* last parameter is del_par */
+			internal_move_pointers_items(&dest_bi, &src_bi,
+						     LAST_TO_FIRST, snum, 0);
+			/*            internal_move_pointers_items(S_new, tbSh, LAST_TO_FIRST, snum, 0); */
+		} else if (n + insert_num - snum < child_pos) {
+			/* all new items fall into S_new */
+			/*  store the delimiting key for the next level */
+			/* new_insert_key = (n + insert_item - snum)'th key in S[h] */
+			memcpy(&new_insert_key,
+			       B_N_PDELIM_KEY(tbSh, n + insert_num - snum),
+			       KEY_SIZE);
+			/* last parameter is del_par */
+			internal_move_pointers_items(&dest_bi, &src_bi,
+						     LAST_TO_FIRST,
+						     snum - insert_num, 0);
+			/*                  internal_move_pointers_items(S_new,tbSh,1,snum - insert_num,0); */
+
+			/* insert insert_num keys and node-pointers into S_new */
+			internal_insert_childs(&dest_bi,
+					       /*S_new,tb->S[h-1]->b_next, */
+					       child_pos - n - insert_num +
+					       snum - 1,
+					       insert_num, insert_key,
+					       insert_ptr);
+
+			insert_num = 0;
+		} else {
+			struct disk_child *dc;
+
+			/* some items fall into S_new, but some don't fall */
+			/* last parameter is del_par */
+			internal_move_pointers_items(&dest_bi, &src_bi,
+						     LAST_TO_FIRST,
+						     n - child_pos + 1, 1);
+			/*                  internal_move_pointers_items(S_new,tbSh,1,n - child_pos + 1,1); */
+			/* calculate number of new items that fall into S_new */
+			k = snum - n + child_pos - 1;
+
+			internal_insert_childs(&dest_bi, /*S_new, */ 0, k,
+					       insert_key + 1, insert_ptr + 1);
+
+			/* new_insert_key = insert_key[insert_num - k - 1] */
+			memcpy(&new_insert_key, insert_key + insert_num - k - 1,
+			       KEY_SIZE);
+			/* replace first node-ptr in S_new by node-ptr to insert_ptr[insert_num-k-1] */
+
+			dc = B_N_CHILD(S_new, 0);
+			put_dc_size(dc,
+				    (MAX_CHILD_SIZE
+				     (insert_ptr[insert_num - k - 1]) -
+				     B_FREE_SPACE(insert_ptr
+						  [insert_num - k - 1])));
+			put_dc_block_number(dc,
+					    insert_ptr[insert_num - k -
+						       1]->b_blocknr);
+
+			do_balance_mark_internal_dirty(tb, S_new, 0);
+
+			insert_num -= (k + 1);
+		}
+		/* new_insert_ptr = node_pointer to S_new */
+		new_insert_ptr = S_new;
+
+		RFALSE(!buffer_journaled(S_new) || buffer_journal_dirty(S_new)
+		       || buffer_dirty(S_new), "cm-00001: bad S_new (%b)",
+		       S_new);
+
+		// S_new is released in unfix_nodes
 	}
 
+	n = B_NR_ITEMS(tbSh);	/*number of items in S[h] */
 
-	memcpy (new_insert_key_addr,&new_insert_key,KEY_SIZE);
+	if (0 <= child_pos && child_pos <= n && insert_num > 0) {
+		bi.tb = tb;
+		bi.bi_bh = tbSh;
+		bi.bi_parent = PATH_H_PPARENT(tb->tb_path, h);
+		bi.bi_position = PATH_H_POSITION(tb->tb_path, h + 1);
+		internal_insert_childs(&bi,	/*tbSh, */
+				       /*          ( tb->S[h-1]->b_parent == tb->S[h] ) ? tb->S[h-1]->b_next :  tb->S[h]->b_child->b_next, */
+				       child_pos, insert_num, insert_key,
+				       insert_ptr);
+	}
+
+	memcpy(new_insert_key_addr, &new_insert_key, KEY_SIZE);
 	insert_ptr[0] = new_insert_ptr;
 
 	return order;
-    }
-
-  
-    
+}