Hi RCU maintainers and experts, I'm working on a linux kernel upstream project which is in the tree. With the POC I can already see that significant performance improvement with RCU in the fast path which are replacing rw semaphore, but not having list_sort() rcu variant is blocking the developement and getting code upstream. I was not able to find the such helper implemented for the RCU flavor of list. Can someone provide information about :- 1. Is there any plan to have list_sort_rcu() ? if so when can we expect that ? (Also how can I help ?) 2. In case there is no plan what are design considerations if someone wants to implement the code and submit it upstream ? (Also how can I help here ? Regards, -CK