Re: [PATCH v1 3/3] migration: multifd: Enable zerocopy

[Leonardo Bras Soares Passos]

Hello Peter, thank you for this feedback!

On Tue, Aug 31, 2021 at 5:29 PM Peter Xu <peterx@redhat.com> wrote:
> Yes it would be great to be a migration capability in parallel to multifd. At
> initial phase if it's easy to be implemented on multi-fd only, we can add a
> dependency between the caps.  In the future we can remove that dependency when
> the code is ready to go without multifd.  Thanks,

I thought the idea was to use MSG_ZEROCOPY whenever possible, and otherwise
fall back to the default copying mechanism.

On replies to 2/3 I mentioned a new method to QIOChannel interface,
that would fall
back to copying, and that may be a way to not have to use a capability.

Best regards,
Leonardo