On Tue, Dec 15, 2020 at 06:52:49PM +0100, Thomas Gleixner wrote: > I might be missing something, but how is the CPU which runs the pinned > kernel thread, i.e. the hotplug thread, supposed to go idle between the > two calls?
Take a mutex or something other daft. My disabling preemption around it we basically assert the two functions are non-blocking and none of that cruft matters.
