> > Sorry I wasn't clear.
> > Miklos is right. the test ofs->upper_mnt here is bogus because
> > nfs_export could be enabled without upper.
> > The change you made in v3 to ovl_lower_uuid_ok() should be enough.
>
> OK, so the following is required for V4:
>
> + if (!ovl_lower_uuid_ok(ofs, &sb->s_uuid)) {
>
Yes. more accurately there should be no change to this line.
Thanks,
Amir.
