On Tue, Oct 27, 2020 at 11:11:02AM +0100, Sebastian Andrzej Siewior wrote: > Right. I found this David Runge's log: True, ->bi_end_io instances can do a lot of things as long as they are hardirq safe. And in the end the IPI case isn't the super fast path anyway, as it means we don't use a queue per CPU. Is there a way to raise a softirq and preferably place it on a given CPU without our IPI dance? That should be a win-win situation for everyone.
