On Fri, May 12, 2017 at 01:15:44PM -0400, Steven Rostedt wrote: > 2) Allow for get_online_cpus() to nest
So Thomas and me have been avoiding doing this. In general we avoid nested locking in the kernel. Nested locking makes an absolute mockery of locking rules and what all gets protected. Yes, its much easier.. But we managed to kill the BKL, so surely we can fix the hotplug lock too, right ;-)
