On Mon, Apr 11, 2022 at 08:41:09AM -0700, Paul E. McKenney wrote: [..] > > > [4] All CPUs are offloaded at boot, and any CPU can be de-offloaded > > > and offloaded at runtime. This is the same behavior that > > > you would currently get with CONFIG_RCU_NOCB_CPU_ALL=n and > > > rcu_nocbs=0-N. > > > > Yes, this is the behavior I intend. So then there would not be a need > > to pass a mask (and I suspect for a large number of users, it > > simplifies boot params). > > Very good, and from what I can see, this should work for everyone. Just to clarify, what I am going to do is, if this new option =y, then rcu_nocbs effectively wont do anything. i.e. All CPUs are offloaded at boot. Let me know if we are not on the same page about it though. I do feel that is a sensible choice given =y. If we are on same page, please ignore my comment. > > > I believe that Steve Rostedt's review would carry weight for ChromeOS, > > > however, I am suffering a senior moment on the right person for Android. > > > > I think for Android, Kalesh Singh is in the kernel team and Tim Murray > > is the performance lead. They could appropriately represent their RCU > > needs. > > Sounds good! Please collect a Reviewed-by from one or both of them. Ok. thanks, - Joel
