Re: [Qemu-devel] [PATCH v4 16/47] Return path: Source handling of return path

[Dr. David Alan Gilbert]

* zhanghailiang (address@hidden) wrote:

> >+        case MIG_RPCOMM_ACK:
> >+            tmp32 = be32_to_cpup((uint32_t *)buf);
> >+            DPRINTF("RP: Received ACK 0x%x", tmp32);
> >+            atomic_xchg(&ms->rp_state.latest_ack, tmp32);
> 
> I didn't see *ms->rp_state.latest_ack* been used elsewhere, what's it used 
> for?;)

Nothing currently; I've used the REQ/ACK as debug at the moment;   I was 
thinking
that someone might want to wait on an ack being received before carrying on; 
but hadn't
actually needed it in postcopy.

Dave

--
Dr. David Alan Gilbert / address@hidden / Manchester, UK