On Wed, Sep 15, 2021 at 04:33:39PM -0700, Paul E. McKenney wrote: > The CPU-hotplug functions take a "cpu" parameter, but rcutree_dying_cpu() > ignores it in favor of this_cpu_ptr(). This works at the moment, but > it would be better to be consistent. This might also work better given > some possible future changes. This commit therefore uses per_cpu_ptr() > to avoid ignoring the rcutree_dying_cpu() function's argument. > > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> I think even in the old days dying and starting ran on the affected CPU, and I don't ever see that changing. Then again, none of this is hot-path in any way, so *meh* :-)