From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: map gendisk (or blockdev) -> scsi_device
Date: Wed, 13 Jul 2005 15:38:43 +0100
Message-ID: <20050713143843.GC26025@infradead.org>
References: <db1npr$c1d$1@sea.gmane.org>
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To: Edward Falk <efalk@google.com>
Cc: linux-scsi@vger.kernel.org

On Tue, Jul 12, 2005 at 05:38:19PM -0700, Edward Falk wrote:
> Hi all; what's the proper way to get the scsi_device structure from a 
> gendisk structure?

No.

> sd.c uses pointers through scsi_disk, but that 
> structure is private to sd.c.  Will I need to add an access function in 
> sd.c or something?

You should revisit your code to not need access to the scsi_device
structure, and follow the layering of the block and scsi subsystems.