linux-kernel - Re: [PATCH] initcall: add config option for compiling initcall

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Date:	Mon, 28 Mar 2011 11:53:24 +0400
From:	Konstantin Khlebnikov <khlebnikov@...allels.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] initcall: add config option for compiling initcall_debug

Randy Dunlap wrote:
> On Sun, 27 Mar 2011 15:55:06 +0400 Konstantin Khlebnikov wrote:
>
>> Add bool config option CONFIG_INITCALL_DEBUG for compiling initcalls debuging,
>> make it on by default to keep current behaviour.
>
> Typo fixes only:

Ok, thanks.

>
>
>> Signed-off-by: Konstantin Khlebnikov<khlebnikov@...nvz.org>
>> ---
>>   Documentation/kernel-parameters.txt |    2 +-
>>   include/linux/init.h                |    4 ++++
>>   init/main.c                         |    2 ++
>>   kernel/async.c                      |    4 +---
>>   lib/Kconfig.debug                   |    7 +++++++
>>   5 files changed, 15 insertions(+), 4 deletions(-)
>>
>> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
>> index c357a31..ea3843a 100644
>> --- a/Documentation/kernel-parameters.txt
>> +++ b/Documentation/kernel-parameters.txt
>> @@ -970,7 +970,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
>>
>>   	initcall_debug	[KNL] Trace initcalls as they are executed.  Useful
>>   			for working out where the kernel is dying during
>> -			startup.
>> +			startup. This depend on CONFIG_INITCALL_DEBUG option.
>
> 			depends on the CONFIG_INITCALL_DEBUG option.
>
>>
>>   	initrd=		[BOOT] Specify the location of the initial ramdisk
>
>
>> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
>> index df9234c..ebc1357 100644
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -807,6 +807,13 @@ config DEBUG_CREDENTIALS
>>
>>   	  If unsure, say N.
>>
>> +config INITCALL_DEBUG
>> +	bool "Debug kernel initcalls"
>> +	default y
>> +	help
>> +	  This build option allow you trace initcalls after
>
> 	allows you to trace initcalls by
>
>> +	  adding "initcall_debug" to kernel command line.
>
> 	to the kernel command line.
>
>> +
>>   #
>>   # Select this config option from the architecture Kconfig, if it
>>   # it is preferred to always offer frame pointers as a config
>
>
> ---
> ~Randy
> *** Remember to use Documentation/SubmitChecklist when testing your code ***

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