On (01/25/18 15:44), Willem de Bruijn wrote: > > This patch manages the m_rs assignment in the rds_message with > > the necessary refcount book-keeping. > > You may alos be able to do the same as tcp zerocopy and > hold an sk reference on the notification skb.
We tether the notification skb to the rds socket after the refcount on the rds_message goes to zero, so we already have a ref from the sk to the notification skb, If we kept a refcount of all notification skb's (even the ones that are not ready to be unpinned yet) on the sk, then we have additional complexity trying to figure out which skb's are ready for notification at any point, so not sure it would make things simpler.. --Sowmini
