On Wed, Jan 09, 2019 at 01:03:33PM -0500, Waiman Long wrote: > The paragraph above may be a bit misleading. This v2 patch actually > touches very little on percpu accounting aspect of the IRQ counts. See > patches 2 and 3 for the relevant changes which is just a few line of new > codes. Please review the individual patches before Nak'ing. > > I could theoretically generalize them into a new set of percpu counting > helpers, but the idea behind it is quite different from the use cases of > percpu counter. So it may not be a good idea of adding it to there. Did you even try just using the general purpose infrastructure that's in place? If that shows a performance problem _then_ it's time to make this special snowflake just a little more special. Not before.