Thanks for linking my toot, here’s another update since then: the same person that found the race condition also found that there was a performance regression on non-synthetic benchmarks. It went super fast on his little test but is complete dogshit when used in the real world! https://lwn.net/ml/all/atI0edrmeiRuRtNQ@thinkstation/

And then he shunts the whole patchset on that person because VACATION TIME https://lwn.net/ml/all/CAHk-=wiCe2H33izZHDyDHEhcFwUr9fXZk27-WZ2vn_pn5FcZTg@mail.gmail.com/

Some kid, eh?