From: Jeff Garzik <jeff@garzik.org>
To: Mark Lord <liml@rtr.ca>
Cc: "Yinghai Lu" <yinghai@kernel.org>,
"Sergei Shtylyov" <sshtylyov@ru.mvista.com>,
"Alan Cox" <alan@lxorguk.ukuu.org.uk>,
"Bartlomiej Zolnierkiewicz" <bzolnier@gmail.com>,
"Dan Noé" <dpn@isomerica.net>,
"James Bottomley" <James.Bottomley@hansenpartnership.com>,
"Christoph Hellwig" <hch@infradead.org>,
"FUJITA Tomonori" <fujita.tomonori@lab.ntt.co.jp>,
linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org,
osst@riede.org
Subject: Re: [PATCH] remove ide-scsi
Date: Tue, 09 Dec 2008 15:07:34 -0500 [thread overview]
Message-ID: <493ED006.7020201@garzik.org> (raw)
In-Reply-To: <493ECE2D.8080404@rtr.ca>
Mark Lord wrote:
> Jeff Garzik wrote:
>> Yinghai Lu wrote:
>>> On Sat, Dec 6, 2008 at 3:48 PM, Jeff Garzik <jeff@garzik.org> wrote:
> ..
>>> interesting, so will get /dev/ada instead of /dev/sda?
>>
>> That is an interesting question. The easiest thing is to allocate a
>> new 32-bit block major. But the more compatible (and more
>> controversial) solution is to allocate from the SCSI disk blkmajor space.
> ..
>
> Perhaps "sdx" and "scdx" should simply be redefined as "System disk"
> and "System CD", and moved under block layer ownership from SCSI ?
Yes, precisely. SCSI and libata (and others) would allocate disk/MMC
majors from the block layer.
The biggest problem with this plan is that it introduces a mismatch in
ioctl capabilities, a behavior change from the current situation where
SCSI exports SCSI_IOCTL_SEND_COMMAND in addition to the more universal
SG_IO. Installers and existing clients may rely on this portion of the
Linux application ABI.
Jeff
next prev parent reply other threads:[~2008-12-09 20:07 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-03 1:38 [PATCH] remove ide-scsi FUJITA Tomonori
2008-12-03 10:06 ` Christoph Hellwig
2008-12-03 13:31 ` Willem Riede
2008-12-03 13:55 ` Matthew Wilcox
2008-12-03 14:02 ` Alan Cox
2008-12-03 15:09 ` James Bottomley
2008-12-06 6:12 ` Pete Zaitcev
2008-12-06 14:06 ` Bartlomiej Zolnierkiewicz
2008-12-06 14:51 ` Bartlomiej Zolnierkiewicz
2008-12-06 15:06 ` Alan Cox
2008-12-06 16:29 ` Bartlomiej Zolnierkiewicz
2008-12-06 15:25 ` Willem Riede
2008-12-06 15:59 ` Bartlomiej Zolnierkiewicz
2008-12-06 17:00 ` Dan Noé
2008-12-06 21:41 ` Bartlomiej Zolnierkiewicz
2008-12-06 22:24 ` Alan Cox
2008-12-06 22:52 ` Sergei Shtylyov
2008-12-06 23:02 ` Alan Cox
2008-12-06 23:19 ` Sergei Shtylyov
2008-12-06 23:32 ` Alan Cox
2008-12-07 0:08 ` Sergei Shtylyov
2008-12-07 11:40 ` Alan Cox
2008-12-07 14:46 ` Sergei Shtylyov
2008-12-07 15:04 ` James Bottomley
2008-12-07 15:21 ` Sergei Shtylyov
2008-12-09 22:21 ` libata / scsi separation Matthew Wilcox
2008-12-09 22:38 ` James Bottomley
2008-12-10 3:37 ` Matthew Wilcox
2008-12-10 1:54 ` Tejun Heo
2008-12-10 2:29 ` Grant Grundler
2008-12-10 2:47 ` Tejun Heo
2008-12-10 3:23 ` Grant Grundler
2008-12-10 3:44 ` Tejun Heo
2008-12-10 15:24 ` Matthew Wilcox
2008-12-10 15:33 ` Tejun Heo
2008-12-10 16:01 ` Matthew Wilcox
2008-12-10 17:11 ` Grant Grundler
2008-12-10 17:21 ` Grant Grundler
2008-12-07 0:19 ` [PATCH] remove ide-scsi Sergei Shtylyov
2008-12-07 9:59 ` Sergei Shtylyov
2008-12-07 10:41 ` Sergei Shtylyov
2008-12-09 21:41 ` Matthew Wilcox
2008-12-10 17:46 ` Sergei Shtylyov
2008-12-06 23:28 ` Jeff Garzik
2008-12-06 23:42 ` Sergei Shtylyov
2008-12-06 23:48 ` Jeff Garzik
2008-12-07 3:36 ` Yinghai Lu
2008-12-07 4:17 ` Jeff Garzik
2008-12-07 5:07 ` Yinghai Lu
2008-12-07 11:00 ` Sergei Shtylyov
2008-12-09 19:59 ` Mark Lord
2008-12-09 20:07 ` Jeff Garzik [this message]
2008-12-09 21:04 ` James Bottomley
2008-12-06 23:45 ` Bartlomiej Zolnierkiewicz
2008-12-06 23:50 ` Jeff Garzik
2008-12-06 23:40 ` Bartlomiej Zolnierkiewicz
2008-12-06 23:51 ` Alan Cox
2008-12-07 0:56 ` Bartlomiej Zolnierkiewicz
2008-12-07 1:14 ` Alan Cox
2008-12-07 10:32 ` Sergei Shtylyov
2008-12-06 23:51 ` Jeff Garzik
2008-12-06 22:33 ` Al Viro
2008-12-06 23:13 ` Bartlomiej Zolnierkiewicz
2008-12-06 23:17 ` Willem Riede
2008-12-07 0:09 ` Al Viro
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