From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shirley Ma <mashirle@us.ibm.com>
Subject: Re: [RFC PATCH] Subject: virtio: Add unused buffers detach from
 vring
Date: Tue, 15 Dec 2009 11:14:07 -0800
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Cc: Rusty Russell <rusty@rustcorp.com.au>, Avi Kivity <avi@redhat.com>,
	netdev@vger.kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Anthony Liguori <anthony@codemonkey.ws>
To: "Michael S. Tsirkin" <mst@redhat.com>
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Hello Michael,

On Tue, 2009-12-15 at 20:47 +0200, Michael S. Tsirkin wrote:
> > +                     detach_buf(vq, i);
> > +                     END_USE(vq);
> > +                     return vq->data[i];
> 
> In fact, this will return NULL always, won't it?

Nope, I changed the destroy to detach and return the buffers without
destroying them within the call. I thought it might be useful in some
other case. 

Maybe I should put destroy call back?

Thanks
Shirley