linux-kernel - Re: [PATCH 1/3] module_arch_freeing_init(): new hook for archs before module->module

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Message-ID: <54B58A06.5000800@gmx.de>
Date:	Tue, 13 Jan 2015 22:11:34 +0100
From:	Helge Deller <deller@....de>
To:	Rusty Russell <rusty@...tcorp.com.au>, linux-kernel@...r.kernel.org
CC:	Chris Metcalf <cmetcalf@...hip.com>,
	Haavard Skinnemoen <hskinnemoen@...il.com>,
	Hans-Christian Egtvedt <egtvedt@...fundet.no>,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-ia64@...r.kernel.org, linux-parisc@...r.kernel.org,
	linux-s390@...r.kernel.org
Subject: Re: [PATCH 1/3] module_arch_freeing_init(): new hook for archs before
 module->module_init freed.

On 08.01.2015 01:58, Rusty Russell wrote:
> Archs have been abusing module_free() to clean up their arch-specific
> allocations.  Since module_free() is also (ab)used by BPF and trace code,
> let's keep it to simple allocations, and provide a hook called before
> that.
>
> This means that avr32, ia64, parisc and s390 no longer need to implement
> their own module_free() at all.  avr32 doesn't need module_finalize()
> either.
>
> Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
> Cc: Chris Metcalf <cmetcalf@...hip.com>
> Cc: Haavard Skinnemoen <hskinnemoen@...il.com>
> Cc: Hans-Christian Egtvedt <egtvedt@...fundet.no>
> Cc: Tony Luck <tony.luck@...el.com>
> Cc: Fenghua Yu <fenghua.yu@...el.com>
> Cc: "James E.J. Bottomley" <jejb@...isc-linux.org>
> Cc: Helge Deller <deller@....de>
> Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
> Cc: Heiko Carstens <heiko.carstens@...ibm.com>
> Cc: linux-kernel@...r.kernel.org
> Cc: linux-ia64@...r.kernel.org
> Cc: linux-parisc@...r.kernel.org
> Cc: linux-s390@...r.kernel.org
> ---
>   arch/avr32/kernel/module.c   | 13 +------------
>   arch/ia64/kernel/module.c    |  6 ++----
>   arch/parisc/kernel/module.c  |  6 +-----
>   arch/s390/kernel/module.c    | 10 +++-------
>   arch/tile/kernel/module.c    |  2 +-
>   include/linux/moduleloader.h |  2 ++
>   kernel/module.c              |  7 +++++++
>   7 files changed, 17 insertions(+), 29 deletions(-)

I successfully tested it on the parisc arch.

Acked-by: Helge Deller <deller@....de>

Thanks!
Helge
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