----- On Jun 16, 2020, at 4:17 PM, Chaitanya Kulkarni Chaitanya.Kulkarni@xxxxxxx wrote: > 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. Why do you need list_sort() ? Is there any way you could simply insert your new elements into the list in already-sorted order ? This would ensure that the list is always in a sorted state, which I suspect will be expected by RCU readers. Thanks, Mathieu > > 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 ? -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
