Re: [Qemu-devel] [PATCH] Further tidy-up on block status

[Vladimir Sementsov-Ogievskiy]

12.01.2017 16:11, Alex Bligh wrote:
> > On 12 Jan 2017, at 07:05, Vladimir Sementsov-Ogievskiy <address@hidden> wrote:
> >
> > Yes this is better. But is it actually needed to force contexts have some safe 
> > default? If context wants it may define such default without this requirement.. 
> > So, should it be requirement at all?
> I've changed this to:
>
>      of the file), a server MAY reply with a single block status
>      descriptor with *length* matching the requested length, rather than
>      reporting the error; in this case the context MAY mandate the
>      status returned.

Hmm, I don't understand. So, it MAY mandate and therefore MAY NOT do it? 
And what client should think, if server replies with one chunk matching 
the request length and not mandate the status?


--
Best regards,
Vladimir