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From: James Bottomley <James.Bottomley@steeleye.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Patrick Mansfield <patmans@us.ibm.com>,
	Christoph Hellwig <hch@infradead.org>,
	Matthew Dharm <mdharm-scsi@one-eyed-alien.net>,
	SCSI development list <linux-scsi@vger.kernel.org>,
	USB Storage List <usb-storage@one-eyed-alien.net>
Subject: Re: Sysfs attribute file for max_sectors
Date: 06 Jan 2004 13:47:54 -0600	[thread overview]
Message-ID: <1073418475.2047.82.camel@mulgrave> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0401061427230.6168-100000@ida.rowland.org>

On Tue, 2004-01-06 at 13:31, Alan Stern wrote:
> I was going to have a store() routine that would accept any value greater
> than 0 and <= the value in the host template (or SCSI_DEFAULT_MAX_SECTORS
> if the host template value is 0 -- that's what scsi_host_alloc() does).  
> If this is writeable only by root, would that be acceptable for all SCSI
> devices?

Not really.  For most drivers, the max_sectors is a driver table
parameter and the user shouldn't be changing it.

The value can be acceptably exported read only in scsi_sysfs.c;  then,
you could use the attribute overriding code to make this read/write for
usb-storage only.

James



  reply	other threads:[~2004-01-06 19:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20031207051634.GB21951@one-eyed-alien.net>
2003-12-08 16:15 ` Notify about errors during initialization Alan Stern
2004-01-05  2:10   ` Matthew Dharm
2004-01-05 22:04     ` Alan Stern
2004-01-05 22:13       ` Christoph Hellwig
2004-01-05 23:32         ` Mike Anderson
2004-01-06 16:17           ` Christoph Hellwig
2004-01-06 17:15             ` Patrick Mansfield
2004-01-06 17:18               ` Christoph Hellwig
2004-01-06 18:08                 ` Mike Anderson
2004-01-06 18:08                   ` Christoph Hellwig
2004-01-06 19:04                     ` Mike Anderson
2004-01-06 18:07               ` Sysfs attribute file for max_sectors Alan Stern
2004-01-06 18:23                 ` James Bottomley
2004-01-06 19:31                   ` Alan Stern
2004-01-06 19:47                     ` James Bottomley [this message]
2004-01-07 16:16                       ` PATCH: (as168) " Alan Stern
2004-01-06 21:11                     ` Patrick Mansfield
2004-01-06 21:14                       ` Jens Axboe
2004-01-06 22:00                       ` Alan Stern

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