On 28/05/2020 10:12, Linus Walleij wrote: > diff --git a/block/mq-deadline.c b/block/mq-deadline.c > index b490f47fd553..324047add271 100644 > --- a/block/mq-deadline.c > +++ b/block/mq-deadline.c > @@ -794,7 +794,8 @@ static struct elevator_type mq_deadline = { > .elevator_attrs = deadline_attrs, > .elevator_name = "mq-deadline", > .elevator_alias = "deadline", > - .elevator_features = ELEVATOR_F_ZBD_SEQ_WRITE, > + .elevator_features = ELEVATOR_F_ZBD_SEQ_WRITE | > + ELEVATOR_F_SINGLE_HW_QUEUE, That indentation looks a bit odd to me but for the general concept Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>