From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: David Howells <dhowells@redhat.com>
Cc: Jens Axboe <axboe@suse.de>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] BLOCK: Make it possible to disable the block layer
Date: Thu, 24 Aug 2006 18:23:55 +0200 [thread overview]
Message-ID: <44EDD29B.1000207@s5r6.in-berlin.de> (raw)
In-Reply-To: <32640.1156424442@warthog.cambridge.redhat.com>
David Howells wrote:
...
> (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls
> an item that uses the block layer. This includes:
...
> (*) The SCSI layer. As far as I can tell, even SCSI chardevs use the
> block layer to do scheduling.
>
> (*) Various block-based device drivers, such as IDE, the old CDROM
> drivers and USB storage.
...
Side note w/o consequence for your patch: usb-storage is not a
block-based device driver. It is a SCSI low-level provider which happens
to need symbols from the block layer to adjust parameters of the SCSI
request queue since there are no fitting abstractions supplied by the
SCSI mid-level.
--
Stefan Richter
-=====-=-==- =--- ==---
http://arcgraph.de/sr/
next prev parent reply other threads:[~2006-08-24 16:26 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-24 13:00 [PATCH] BLOCK: Make it possible to disable the block layer David Howells
2006-08-24 13:13 ` David Woodhouse
2006-08-24 13:34 ` David Howells
2006-08-24 13:40 ` David Woodhouse
2006-08-24 13:54 ` David Howells
2006-08-24 13:47 ` Christoph Hellwig
2006-08-24 14:42 ` Nick Piggin
2006-08-24 15:29 ` Adrian Bunk
2006-08-24 15:44 ` David Woodhouse
2006-08-24 15:58 ` Adrian Bunk
2006-08-24 16:00 ` David Woodhouse
2006-08-24 16:09 ` Adrian Bunk
2006-08-24 16:47 ` Alexey Dobriyan
2006-08-24 17:07 ` Adrian Bunk
2006-08-24 17:16 ` David Woodhouse
2006-08-24 17:34 ` Randy.Dunlap
2006-08-24 17:48 ` David Woodhouse
2006-08-24 17:59 ` Sam Ravnborg
2006-08-25 6:23 ` Jan Engelhardt
2006-08-25 7:19 ` Sam Ravnborg
2006-08-24 18:01 ` Randy.Dunlap
2006-08-25 6:21 ` Jan Engelhardt
2006-08-25 6:07 ` Jan Engelhardt
2006-08-25 10:37 ` Adrian Bunk
2006-08-25 13:09 ` Alexey Dobriyan
2006-08-24 16:39 ` Jan Engelhardt
2006-08-24 16:44 ` David Woodhouse
2006-08-24 16:48 ` Adrian Bunk
2006-08-24 21:31 ` Johannes Stezenbach
2006-08-25 6:04 ` Jan Engelhardt
2006-08-24 18:39 ` Matthias Schniedermeyer
2006-08-25 6:06 ` Jan Engelhardt
2006-08-24 17:18 ` David Howells
2006-08-24 17:23 ` Adrian Bunk
2006-08-24 16:23 ` Stefan Richter [this message]
2006-08-25 12:16 ` Jens Axboe
2006-08-25 13:40 ` David Howells
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