On May 23, 2019, at 2:39 PM, Willem de Bruijn willemdebruijn.kernel@gmail.com wrote: Zerocopy notification reference count is managed in skb_segment. That should work.
I’m trying to understand the context of reference counting in skb_segment. I assume that there is an opportunity to optimize the count of outstanding zerocopy buffers, but I can’t see it. Please clarify.