On Wed, Dec 16 2020 at 09:19, Peter Zijlstra wrote: > 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.
That'd be really daft, but yes we can do that for paranoia sake. Thanks, tglx