Install the callbacks via the state machine so we can phase out the cpu
hotplug notifiers mess.
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-block@vger.kernel.org
Cc: rt@linutronix.de
Cc: Christoph Hellwing <hch@lst.de>
Link: http://lkml.kernel.org/r/20160919212601.180033814@linutronix.deSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NJens Axboe <axboe@fb.com>