Re: [Qemu-devel] [PATCH v3 3/8] multifd: Create new next_packet_size field

[Juan Quintela]

"Dr. David Alan Gilbert" <address@hidden> wrote:
> * Juan Quintela (address@hidden) wrote:
>> We need to send this field when we add compression support.  As we are
>> still on x- stage, we can do this kind of changes.
>> 
>> Signed-off-by: Juan Quintela <address@hidden>
>
> OK, so that kind of makes sense - in that what you want to do is read
> the whole compressed chunk in one go.
>
> Consider it might be a good idea to add some spare entries here;
> say a uint64_t dummy[4] so that if you need any more fields in the
> future it'll be easy to add them without breaking compatibility.

We have a version field, so ... we can handle it relatively gratiously,
but I see your point.

How many?

Later, Juan.