From: Jens Axboe <jens.axboe@oracle.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
Boaz Harrosh <bharrosh@panasas.com>,
Ric Wheeler <ricwheeler@gmail.com>,
linux-scsi@vger.kernel.org
Subject: Re: [DO NOT APPLY] sd take advantage of rotation speed
Date: Wed, 25 Jun 2008 20:01:50 +0200 [thread overview]
Message-ID: <20080625180149.GG20851@kernel.dk> (raw)
In-Reply-To: <20080625175303.GT4392@parisc-linux.org>
On Wed, Jun 25 2008, Matthew Wilcox wrote:
> On Wed, Jun 25, 2008 at 12:43:50PM -0500, James Bottomley wrote:
> > On Wed, 2008-06-25 at 11:34 -0600, Matthew Wilcox wrote:
> > > On Wed, Jun 25, 2008 at 07:26:39PM +0200, Jens Axboe wrote:
> > > > Uhm, but it IS "a blatant layering violation", it's doing things from
> > > > the wrong side up :-)
> > >
> > > That's just "doing things from a spot Jens doesn't approve of". A
> > > layering violation would be SCSI knowing how elevators work.
> >
> > When it was setting particular elevators, it was a layering violation
> > (as I said at the time). If it's just setting a seek cost hint, that's
> > acceptable.
>
> You're both being silly. Interacting with a subsystem via its exposed
> interfaces is not a layering violation.
Dude, get a grip, your line is reasoning is getting silly. By that
logic, as long as something is exported you can use it from wherever you
want? Uhm right.
--
Jens Axboe
next prev parent reply other threads:[~2008-06-25 18:01 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-19 16:03 [DO NOT APPLY] sd take advantage of rotation speed Matthew Wilcox
2008-06-19 17:12 ` Mike Anderson
2008-06-19 18:10 ` Matthew Wilcox
2008-06-22 12:16 ` Boaz Harrosh
2008-06-22 13:19 ` Matthew Wilcox
2008-06-22 13:27 ` Boaz Harrosh
2008-06-22 13:38 ` James Bottomley
2008-06-22 14:03 ` Matthew Wilcox
2008-06-22 14:41 ` Martin K. Petersen
2008-06-22 18:44 ` Matthew Wilcox
2008-06-25 2:06 ` Martin K. Petersen
2008-06-22 17:26 ` James Bottomley
2008-06-25 13:47 ` Jens Axboe
2008-06-25 13:57 ` Jens Axboe
2008-06-25 14:24 ` Ric Wheeler
2008-06-25 16:25 ` Boaz Harrosh
2008-06-25 16:57 ` Jens Axboe
2008-06-25 17:20 ` Matthew Wilcox
2008-06-25 17:26 ` Jens Axboe
2008-06-25 17:34 ` Matthew Wilcox
2008-06-25 17:43 ` James Bottomley
2008-06-25 17:53 ` Matthew Wilcox
2008-06-25 18:01 ` Jens Axboe [this message]
2008-06-25 18:06 ` James Bottomley
2008-06-25 17:59 ` Jens Axboe
2008-06-25 18:06 ` Martin K. Petersen
2008-06-25 18:12 ` Jens Axboe
2008-07-28 13:36 ` Ric Wheeler
2008-07-28 14:10 ` James Bottomley
2008-07-28 14:31 ` Martin K. Petersen
2008-07-31 21:00 ` Grant Grundler
2008-07-31 21:19 ` Andrew Patterson
2008-07-31 22:26 ` Ric Wheeler
2008-07-31 23:44 ` Grant Grundler
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