Message-ID: <41E53F27.9000502@nortelnetworks.com>
Date: Wed, 12 Jan 2005 09:15:51 -0600
From: Chris Friesen <cfriesen@nortelnetworks.com>
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To: selvakumar nagendran <kernelselva@yahoo.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: Removing a module even if use count is not zero
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selvakumar nagendran wrote:
> hello linux-experts,
>     I inserted my module into the running kernel that
> intercepts read system call. I am using kernel 2.4.28.
> Now, I am unable to remove it since each and every
> time, the module is used by some process. How can I
> remove the module even if the usecount is not zero?
>     Can anyone help me regarding this?

As already said, you need to reboot.

To fix this in the future, export a /proc entry that when written to 
causes your module to properly clean everything up and prevent anyone 
from getting new accesses.  This then allows you to remove the module 
cleanly.  Note that it may not be possible to cleanly deregister, 
depending on what your module is doing.

Chris
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