Messages in this thread | | | Date | Tue, 26 Apr 2022 16:11:00 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH RFC fs/namespace] Make kern_unmount() use synchronize_rcu_expedited() |
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On Wed, Apr 27, 2022 at 12:58:34AM +0200, Christoph Bartoschek wrote: > > 3. https://lore.kernel.org/lkml/20220218183114.2867528-1-riel@surriel.com/ > > Refined queue_rcu_work() approach. > > > > #1 should work, but the resulting IPIs are not going to make the real-time > > guys happy. #2 and #3 have been subject to reasonably heavy testing > > and did fix a very similar issue to the one that you are reporting, > > but last I knew there were doubts about the concurrency consequences. > > > > Could you please give at least #3 a shot and see if it helps you? > > I have tried #3 and it works well with my testcases as far as I can see it.
Thank you for giving it a try!
Al, are further adjustments needed to make this patch cover all the corner cases?
Thanx, Paul
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