On Wed, May 24, 2017 at 10:15:26AM +0200, Thomas Gleixner wrote: > From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > > stp_work_fn() holds get_online_cpus() while invoking stop_machine(). > > stop_machine() invokes get_online_cpus() as well. This is correct, but > prevents the conversion of the hotplug locking to a percpu rwsem. > > Use stop_machine_cpuslocked() to avoid the nested call. Convert > *_online_cpus() to the new interfaces while at it. > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: linux-s390@xxxxxxxxxxxxxxx > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx> > Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> > Cc: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx> > Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> > > --- > arch/s390/kernel/time.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) Acked-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
