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From: Keith Owens <kaos@ocs.com.au>
To: sendhil kumar <hello_linux@yahoo.com>
cc: linux-kernel@vger.kernel.org
Subject: Re: cleanup_module/delete_module. 
In-Reply-To: Your message of "Thu, 05 Jul 2001 20:14:41 MST."
             <20010706031441.44905.qmail@web14907.mail.yahoo.com> 
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Date: Fri, 06 Jul 2001 13:32:57 +1000
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On Thu, 5 Jul 2001 20:14:41 -0700 (PDT), 
sendhil kumar <hello_linux@yahoo.com> wrote:
>I want to know the difference between the
>cleanup_module and delete_module system call. Can any
>one please clarify my doubt.

insmod inserts the address of cleanup_module() in the module structure
at load time.  When syscall delete_module() is about to remove the
module, it calls the module's clean up routine, if it exists.  So
cleanup_module() is invoked during module deletion to let the module do
any local clean up.