--- 0bc5776950612f7b4b8e6e0d7794d97b2c7f294b
+++ 3359aff5aeba5fe068cce4fd0857d43e7aef7141
@@ -285,6 +285,10 @@ static noinline int create_subvol(struct
 	inode_item->nbytes = cpu_to_le64(root->leafsize);
 	inode_item->mode = cpu_to_le32(S_IFDIR | 0755);
 
+	root_item.flags = 0;
+	root_item.byte_limit = 0;
+	inode_item->flags = cpu_to_le64(BTRFS_INODE_ROOT_ITEM_INIT);
+
 	btrfs_set_root_bytenr(&root_item, leaf->start);
 	btrfs_set_root_generation(&root_item, trans->transid);
 	btrfs_set_root_level(&root_item, 0);