Thomas Gleixner wrote: > On Tue, 14 Jun 2016, George Spelvin wrote: >> If you need to shrink TIMER_ARRAYMASK to fit another flag bit, > > We can accomodate wheel with 512 buckets with the current ARRAYMASK and that > really should be enough.
You're absolutely correct, but I was referring to the possible development in the future of the need for another flag bit for some purpose *other* than encoding a bucket number. There's no need now, but if next year someone finds and urgent need for another flag bit, there's a way to proceed. (Although you could just enlarge "flags"; the removal of "slack" has left a 32-bit alignment hole.) > The expiry code uses the pending_map already in patch 13 to avoid looking at > the bucket if its empty. My bad, I'm sorry! I was quickly re-reading it and missed that. Given the quality of the patch series, I should have expected that and looked harder. > Thanks, Thank *you*. It really is a pleasure to read. I can't find anything but the most insignificant issues to complain about.