Re: [PATCH] block: export SSD/non-rotational queue flag through sysfs

From: Jens Axboe
Date: Mon Jan 05 2009 - 14:10:21 EST


On Mon, Jan 05 2009, Bartlomiej Zolnierkiewicz wrote:
> On Monday 05 January 2009, Jens Axboe wrote:
> > On Mon, Jan 05 2009, Bartlomiej Zolnierkiewicz wrote:
> > > From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> > > Subject: [PATCH] block: export SSD/non-rotational queue flag through sysfs
> > >
> > > For some devices (i.e. CFA ATA) we can't reliably detect whether
> > > the device is of rotational or non-rotational type so we need to
> > > leave the final decision about this setting to the user-space.
> >
> > I agree with that, was actually planning on doing that myself.
> >
> > > @@ -146,8 +167,8 @@ static ssize_t queue_nomerges_store(stru
> > > queue_flag_set(QUEUE_FLAG_NOMERGES, q);
> > > else
> > > queue_flag_clear(QUEUE_FLAG_NOMERGES, q);
> > > -
> > > spin_unlock_irq(q->queue_lock);
> > > +
> > > return ret;
> > > }
> > >
> >
> > Hmm?
>
> This is just a "bonus". :)

I typically prefer a line in-between, but apparently blk-sysfs uses the
other style, so it's good to at least be consistent locally :-)

I've applied the updated patch, thanks!

--
Jens Axboe

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