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

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Message-ID: <20090105190853.GT32491@kernel.dk>
Date:	Mon, 5 Jan 2009 20:08:54 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] block: export SSD/non-rotational queue flag through sysfs

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@...il.com>
> > > 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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