Hello Stefano and Jason,

First of all thanks for the quick reply,
Response inline belowe
> Hi Florian,
> 
> I think we need to add (Since: 5.0).

Are you implying by that (Since: 5.0) that we need to specify its
availability target is qemu 5.0 ?
I guess that maybe a version check would be better ? Like try to do
namespaces stuff only if we have a recent enough librbd in the system ?
Using something like :

int rbd_major;

rbd_version(&rbd_major, NULL, NULL);
/*
 * Target only nautilus+ librbd for namespace support
*/
if (rbd_major >= 14) // tar
 <process namespace>

> 
> The patch LGTM, but I'd like to use 'namespace' instead of cryptic
> 'nspace'. (as BlockdevOptionsNVMe did)
> What do you think?
> 
Yes no worries, I can rename it to 'rbd_namespace' to avoid any possible
confusion, is this Ok for you ?
> 
> With those fixed:
> 
> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
> 
> Thanks,
> Stefano

Regards,
Florian