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From: Keith Owens <kaos@ocs.com.au>
To: Andrew Morton <akpm@zip.com.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>, linux-kernel@vger.kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>,
        Werner Almesberger <wa@almesberger.net>,
        "Erik A. Hendriks" <hendriks@lanl.gov>
Subject: Re: [RFC] x86 ELF bootable kernels/Linux booting Linux/LinuxBIOS 
In-Reply-To: Your message of "Wed, 30 Jan 2002 13:19:17 -0800."
             <3C586355.A396525B@zip.com.au> 
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Date: Thu, 31 Jan 2002 10:52:12 +1100
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On Wed, 30 Jan 2002 13:19:17 -0800, 
Andrew Morton <akpm@zip.com.au> wrote:
>"Eric W. Biederman" wrote:
>> In the short term shutting down devices is trivially handled by
>> umounting filesystems, downing ethernet devices, and calling the
>> reboot notifier chain.  Long term I need to call the module_exit
>> routines but they need a little sorting out before I can use them
>> during reboot.  In particular calling any module_exit routing that clears
>> pm_power_off is a no-no.
>
>module_exit() routines for statically-linked drivers often
>don't exist - they're in .text.exit.  I guess you can just
>move .text.exit out of the /DISCARD/ section in vmlinux.lds.

Sounds like a generalization of device hot plugging, which has already
solved this problem.  Turn on CONFIG_HOTPLUG and module_exit()
functions are in .text instead of .text.exit, no need to fiddle with
vmlinux.lds.

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