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Date: Thu, 25 Oct 2007 16:59:59 +0900
From: Takenori Nagano <t-nagano@...jp.nec.com>
To: Randy Dunlap <rdunlap@...otime.net>
CC: linux-kernel@...r.kernel.org, vgoyal@...ibm.com,
"Eric W. Biederman" <ebiederm@...ssion.com>,
k-miyoshi@...jp.nec.com, kexec@...ts.infradead.org,
Bernhard Walle <bwalle@...e.de>, Keith Owens <kaos@....com.au>,
Andrew Morton <akpm@...ux-foundation.org>, kdb@....sgi.com
Subject: Re: [PATCH 2/2] implement new notifier function to panic_notifier_list
,take2
Randy Dunlap wrote:
> On Thu, 18 Oct 2007 17:53:03 +0900 Takenori Nagano wrote:
>
>> This patch implements new notifier function to panic_notifier_list. We can
>> change the list of order by debugfs.
>
> Should be sysfs IMO. debugfs isn't (should not be) required.
OK. We try to find an appropriate place.
http://lkml.org/lkml/2007/10/24/54
>> Thanks,
>>
>> ---
>>
>> Signed-off-by: Takenori Nagano <t-nagano@...jp.nec.com>
>>
>> ---
>> diff -uprN linux-2.6.23.orig/arch/alpha/kernel/setup.c linux-2.6.23/arch/alpha/kernel/setup.c
>> --- linux-2.6.23.orig/arch/alpha/kernel/setup.c 2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/arch/alpha/kernel/setup.c 2007-10-18 08:56:53.928000000 +0900
>> @@ -45,14 +45,22 @@
>> #include <asm/io.h>
>> #include <linux/log2.h>
>>
>> -extern struct atomic_notifier_head panic_notifier_list;
>> +extern struct tunable_atomic_notifier_head panic_notifier_list;
>> static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
>> -static struct notifier_block alpha_panic_block = {
>> +static struct notifier_block alpha_panic_block_base = {
>> alpha_panic_event,
>> NULL,
>> INT_MAX /* try to do it first */
>> };
>>
>> +static struct tunable_atomic_notifier_block alpha_panic_block = {
>> + &alpha_panic_block_base,
>
> Use C99-style initializer. and NULLs aren't needed.
OK. I'll fix.
Thanks,
Takenori
>
>> + NULL,
>> + NULL,
>> + NULL,
>> + NULL
>> +};
>> +
>> #include <asm/uaccess.h>
>> #include <asm/pgtable.h>
>> #include <asm/system.h>
>
>> diff -uprN linux-2.6.23.orig/arch/arm/mach-omap1/board-voiceblue.c linux-2.6.23/arch/arm/mach-omap1/board-voiceblue.c
>> --- linux-2.6.23.orig/arch/arm/mach-omap1/board-voiceblue.c 2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/arch/arm/mach-omap1/board-voiceblue.c 2007-10-18 09:00:35.900000000 +0900
>> @@ -228,14 +228,23 @@ static int panic_event(struct notifier_b
>> return NOTIFY_DONE;
>> }
>>
>> -static struct notifier_block panic_block = {
>> +static struct notifier_block panic_block_base = {
>> .notifier_call = panic_event,
>> };
>>
>> +static struct tunable_atomic_notifier_block panic_block = {
>> + .nb = &panic_block_base,
>> + .head = NULL,
>> + .dir = NULL,
>> + .pri_dentry = NULL,
>> + .desc_dentry = NULL
>
> Drop the NULLs.
>
>> +};
>> +
>> static int __init voiceblue_setup(void)
>> {
>> /* Setup panic notifier */
>> - notifier_chain_register(&panic_notifier_list, &panic_block);
>> + tunable_atomic_notifier_chain_register(&panic_notifier_list,
>> + &panic_block, "VoiceBlue", NULL);
>>
>> return 0;
>> }
>> diff -uprN linux-2.6.23.orig/arch/mips/sgi-ip22/ip22-reset.c linux-2.6.23/arch/mips/sgi-ip22/ip22-reset.c
>> --- linux-2.6.23.orig/arch/mips/sgi-ip22/ip22-reset.c 2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/arch/mips/sgi-ip22/ip22-reset.c 2007-10-18 09:01:33.408000000 +0900
>> @@ -226,10 +226,18 @@ static int panic_event(struct notifier_b
>> return NOTIFY_DONE;
>> }
>>
>> -static struct notifier_block panic_block = {
>> +static struct notifier_block panic_block_base = {
>> .notifier_call = panic_event,
>> };
>>
>> +static struct tunable_atomic_notifier_block panic_block = {
>> + .nb = &panic_block_base,
>> + .head = NULL,
>> + .dir = NULL,
>> + .pri_dentry = NULL,
>> + .desc_dentry = NULL
>
> Ditto.
>
>> +};
>> +
>> static int __init reboot_setup(void)
>> {
>> _machine_restart = sgi_machine_restart;
>
>> diff -uprN linux-2.6.23.orig/arch/mips/sgi-ip32/ip32-reset.c linux-2.6.23/arch/mips/sgi-ip32/ip32-reset.c
>> --- linux-2.6.23.orig/arch/mips/sgi-ip32/ip32-reset.c 2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/arch/mips/sgi-ip32/ip32-reset.c 2007-10-18 09:02:20.496000000 +0900
>> @@ -175,10 +175,18 @@ static int panic_event(struct notifier_b
>> return NOTIFY_DONE;
>> }
>>
>> -static struct notifier_block panic_block = {
>> +static struct notifier_block panic_block_base = {
>> .notifier_call = panic_event,
>> };
>>
>> +static struct tunable_atomic_notifier_block panic_block = {
>> + .nb = &panic_block_base,
>> + .head = NULL,
>> + .dir = NULL,
>> + .pri_dentry = NULL,
>> + .desc_dentry = NULL
>
> Ditto.
>
>> +};
>> +
>> static __init int ip32_reboot_setup(void)
>> {
>> /* turn on the green led only */
>
>> diff -uprN linux-2.6.23.orig/arch/parisc/kernel/pdc_chassis.c linux-2.6.23/arch/parisc/kernel/pdc_chassis.c
>> --- linux-2.6.23.orig/arch/parisc/kernel/pdc_chassis.c 2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/arch/parisc/kernel/pdc_chassis.c 2007-10-18 08:56:54.052000000 +0900
>> @@ -101,11 +101,18 @@ static int pdc_chassis_panic_event(struc
>> }
>>
>>
>> -static struct notifier_block pdc_chassis_panic_block = {
>> +static struct notifier_block pdc_chassis_panic_block_base = {
>> .notifier_call = pdc_chassis_panic_event,
>> .priority = INT_MAX,
>> };
>>
>> +static struct tunable_atomic_notifier_block pdc_chassis_panic_block = {
>> + .nb = &pdc_chassis_panic_block_base,
>> + .head = NULL,
>> + .dir = NULL,
>> + .pri_dentry = NULL,
>> + .desc_dentry = NULL
>
> Ditto... (I'll skip mentioning the rest of these.)
>
>> +};
>>
>> /**
>> * parisc_reboot_event() - Called by the reboot handler.
>
>
> ---
> ~Randy
>
>
--
+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+
ＮＥＣ コンピュータソフトウェア事業本部
ＯＳＳプラットフォーム開発本部
永野 武則 (Takenori Nagano)
TEL:8-23-57270(MyLine) 042-333-5383(外線)
e-mail:t-nagano@...jp.nec.com
+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+=-=+
-
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