linux-kernel - How to register block device as read-only

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Message-ID: <Prayer.1.0.16.0707271307310.28071@wm1.tc.umn.edu>
Date:	27 Jul 2007 13:07:31 -0500
From:	beck0778@....edu
To:	linux-kernel@...r.kernel.org
Subject: How to register block device as read-only

Hello,

In a block device driver, how do you tell the kernel that your block device 
is read-only? Is it in the registration of the gendisk, or is there an 
ioctl I should be catching to inform the kernel (and user) that this disk 
is read-only?

--Matthew
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