Re: [Nbd] [Qemu-devel] [PULL 23/28] nbd: always query export list in fixed new style protocol

["Richard W.M. Jones" <rjones@...696...>]

On Sat, May 21, 2016 at 11:53:12PM +0200, Wouter Verhelst wrote:
> On Tue, May 17, 2016 at 10:50:01AM -0600, Eric Blake wrote:
> > Option 2: An alternative solution would be to allow nbdkit to fail
> > NBD_OPT_LIST with NBD_REP_ERR_UNSUP, at which point qemu client of 2.6
> > should just ignore the failure and proceed on to NBD_OPT_EXPORT_NAME.
> > It is the fact that it is returning NBD_REP_ACK with 0 names that is
> > giving qemu grief.
> 
> I think this makes most sense. If you don't look at export names, you
> effectively don't support them, and you can't be expected to send a list
> of "supported" names, because *everything* is supported (or, put a
> different way, nothing is).
> 
> I note that nbdkit has been patched to now send the empty name, which
> is also fine as a way to fix interoperability in this particular case --

nbdkit now fully supports export names via the '-e' option.
This discussion is moot.

Rich.

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