Re: Unionmount: proxying the control port

[olafBuddenhagen]

Hi,

On Wed, Jul 08, 2009 at 03:41:51PM +0300, Sergiu Ivanov wrote:

> I also checked the implementation of fsys_forward in libdiskfs and
> found that it returns EOPNOTSUPP.  Since libdiskfs usually has all
> necessary stuff implemented properly (as different from libnetfs and
> libtrivfs), I'd say we can forget about this RPC as well.

fsys_forward() is only implemented by translators that accept
forwarding. For disk filesystems, that's probably never the case, so
it's quite expected that libdiskfs doesn't handle it.

The question is whether it makes sense ever to union-mount any of the
translators supporting forwarding. That's probably not the case for the
currently existing use cases of fsys_forward(), but I can't say that it
will never ever be useful.

So I stand by what I said before: If it seems trivial to forward it, do
so; otherwise, ignore it.

-antrik-