From: Paolo Abeni <pab...@redhat.com> Date: Wed, 20 Sep 2017 18:54:00 +0200
> This series introduce the infrastructure to store inside the skb a socket > pointer without carrying a refcount to the socket. > > Such infrastructure is then used in the network receive path - and > specifically the early demux operation. > > This allows the UDP early demux to perform a full lookup for UDP sockets, > with many benefits: > > - the UDP early demux code is now much simpler > - the early demux does not hit any performance penalties in case of UDP hash > table collision - previously the early demux performed a partial, > unsuccesful, > lookup > - early demux is now operational also for unconnected sockets. > > This infrastrcture will be used in follow-up series to allow dst caching for > unconnected UDP sockets, and than to extend the same features to TCP listening > sockets. Like Eric, I find this series (while exciting) quite scary :-) You really have to post some kind of performance numbers in your header posting in order to justify something with these ramifications and scale. Thank you.
