FS_VNODE_CAPABILITY_WRITE_ATTR
CLEAR_UNSUPPORTED(FS_VNODE_CAPABILITY_WRITE_ATTR, write_attr);
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_WRITE_ATTR))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_WRITE_ATTR, fFSOps->write_attr);
capabilities.Set(FS_VNODE_CAPABILITY_WRITE_ATTR, ops->write_attr);