Le Wed, Jan 07, 2026 at 10:35:44PM -0500, Joel Fernandes a écrit : > > > > By the way, when I last tried to do it from rcu_qs, it was not fixing the > > original bug with the IRQ work recursion. > > > > I found that it was always resetting the flag. But probably it is not even > > the right place to do it in the first place. > > I think we need to reset the flag in rcu_report_exp_rdp() as well if exp_hint > is set and we reported exp qs.
To avoid needlessly reaching the rcu_read_unlock() slowpath whenever the exp QS has already been reported, yes indeed. > I am working on a series to cover all cases and will send RFC soon. However > this patch we are > reviewing can go in for this merge window and the rest I am preparing (for > further improvement) for the next merge window, if that sounds good. Ok. -- Frederic Weisbecker SUSE Labs
