Re: [PATCH 7/8] mq-deadline: add blk-mq adaptation of the deadline IO scheduler

From: Jens Axboe
Date: Fri Jan 20 2017 - 09:29:08 EST


On Fri, Jan 20 2017, Paolo Valente wrote:
>
> > Il giorno 20 gen 2017, alle ore 14:14, Paolo Valente <paolo.valente@xxxxxxxxxx> ha scritto:
> >
> >>
> >> Il giorno 17 dic 2016, alle ore 01:12, Jens Axboe <axboe@xxxxxx> ha scritto:
> >>
> >> This is basically identical to deadline-iosched, except it registers
> >> as a MQ capable scheduler. This is still a single queue design.
> >>
> >
> > Jens,
> > no spin_lock_irq* in the code. So, also request dispatches are
> > guaranteed to never be executed in IRQ context?
>
> Or maybe the opposite? That is, all scheduler functions invoked in IRQ context?

Nope

--
Jens Axboe