From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <ian.campbell@citrix.com>
Subject: Re: RING_HAS_UNCONSUMED_REQUESTS oddness
Date: Thu, 6 Mar 2014 15:53:41 +0000
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To: Zoltan Kiss <zoltan.kiss@citrix.com>
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On Thu, 2014-03-06 at 15:47 +0000, Zoltan Kiss wrote:
> By my understanding, there is no way rsp could be smaller than req, so
> there is no point having this. Am I missing something?

It happens during wraparound, i.e. after req has wrapped but rsp hasn't
yet.

Ian.