Subject: Re: [RFC PATCH 2/2] macvtap: TX zero copy between guest and host kernel

From: Shirley Ma <[email-masked]>
Date: Wed, 29 Sep 2010 07:31:29 -0700

On Wed, 2010-09-29 at 10:16 +0200, Michael S. Tsirkin wrote:
> If you look at dev_hard_start_xmit you will see a call
> to skb_orphan_try which often calls the skb destructor.
> So I suspect this is almost equivalent to your original patch,
> and has the same correctness issue.

I forgot to mention, in skb_orphan_try, I still kept the skb->sk
reference to sk, I assign skb->sk to NULL when the DMA done.

Thanks
Shirley