From: Shirley Ma <redacted>
Date: Mon, 27 Jun 2011 08:45:10 -0700

To support skb zero-copy, a pointer is needed to add to skb share info.
Do you agree with this approach? If not, do you have any other
suggestions?

I really can't form an opinion unless I am shown the complete
implementation, what this give us in return, what the impact is, etc.