diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 2fb4ab6..d498982 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -258,9 +258,8 @@
 	else
 		btrfs_node_key(buf, &disk_key, 0);
 
-	cow = btrfs_alloc_free_block(trans, root, buf->len, 0,
-				     new_root_objectid, &disk_key, level,
-				     buf->start, 0);
+	cow = btrfs_alloc_tree_block(trans, root, 0, new_root_objectid,
+			&disk_key, level, buf->start, 0);
 	if (IS_ERR(cow))
 		return PTR_ERR(cow);
 
@@ -1133,9 +1132,9 @@
 	} else
 		parent_start = 0;
 
-	cow = btrfs_alloc_free_block(trans, root, buf->len, parent_start,
-				     root->root_key.objectid, &disk_key,
-				     level, search_start, empty_size);
+	cow = btrfs_alloc_tree_block(trans, root, parent_start,
+			root->root_key.objectid, &disk_key, level,
+			search_start, empty_size);
 	if (IS_ERR(cow))
 		return PTR_ERR(cow);
 
@@ -3355,9 +3354,8 @@
 	else
 		btrfs_node_key(lower, &lower_key, 0);
 
-	c = btrfs_alloc_free_block(trans, root, root->nodesize, 0,
-				   root->root_key.objectid, &lower_key,
-				   level, root->node->start, 0);
+	c = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
+				   &lower_key, level, root->node->start, 0);
 	if (IS_ERR(c))
 		return PTR_ERR(c);
 
@@ -3495,9 +3493,8 @@
 	mid = (c_nritems + 1) / 2;
 	btrfs_node_key(c, &disk_key, mid);
 
-	split = btrfs_alloc_free_block(trans, root, root->nodesize, 0,
-					root->root_key.objectid,
-					&disk_key, level, c->start, 0);
+	split = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
+			&disk_key, level, c->start, 0);
 	if (IS_ERR(split))
 		return PTR_ERR(split);
 
@@ -4275,9 +4272,8 @@
 	else
 		btrfs_item_key(l, &disk_key, mid);
 
-	right = btrfs_alloc_free_block(trans, root, root->nodesize, 0,
-					root->root_key.objectid,
-					&disk_key, 0, l->start, 0);
+	right = btrfs_alloc_tree_block(trans, root, 0, root->root_key.objectid,
+			&disk_key, 0, l->start, 0);
 	if (IS_ERR(right))
 		return PTR_ERR(right);