Btrfs: change dir-test to insert inode_items

Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 1849a99..bacaa38 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -226,6 +226,7 @@
 
 	ret = btrfs_del_root(trans, root->fs_info->tree_root, &snap_key);
 	BUG_ON(ret);
+	root->fs_info->generation = root->root_key.offset + 1;
 
 	return ret;
 }
@@ -328,6 +329,7 @@
 	root->commit_root = root->node;
 	root->node->count++;
 	root->ref_cows = 1;
+	root->fs_info->generation = root->root_key.offset + 1;
 	return root;
 }