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


From: zhanghailiang
Subject: Re: [Qemu-devel] [PATCH v4 16/47] Return path: Source handling of return path
Date: Thu, 16 Oct 2014 17:09:30 +0800
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Thunderbird/31.1.1

On 2014/10/16 16:35, Dr. David Alan Gilbert wrote:
* 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.


OK, i see, Thanks.

Dave

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

.






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