From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [virtio-spec PATCH 0/5] Receiving Used Buffers example code:
	cleanups and an extra mb()
Date: Mon, 17 Jun 2013 11:47:13 +0930
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To: Stefan Hajnoczi <stefanha@gmail.com>, Laszlo Ersek <lersek@redhat.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>, Stefan Hajnoczi <stefanha@redhat.com>, Linux Virtualization <virtualization@lists.linux-foundation.org>
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Stefan Hajnoczi <stefanha@gmail.com> writes:
> On Sat, Jun 8, 2013 at 7:39 PM, Laszlo Ersek <lersek@redhat.com> wrote:
>> Patches before the last are small cleanups.
>>
>> In the last patch I'm trying to extract / generalize an idea from Stefan
>> Hajnoczi's review of my virtio-net driver for OVMF.

How about a single patch which just replaces the completely broken
example? :)

>>   Receiving Used Buffers: prevent speculative load when not
>>     sequentially consistent

Yes, though this only needs to be a rmb().

In the OASIS 1.0 spec, I'd like an appendix with tested code for doing
these operations (probably based on a simplifeid version of vringh.c).

Thanks,
Rusty.