FS_VNODE_CAPABILITY_CLOSE_ATTR_DIR
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_CLOSE_ATTR_DIR))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_CLOSE_ATTR_DIR,
capabilities.Set(FS_VNODE_CAPABILITY_CLOSE_ATTR_DIR, ops->close_attr_dir);