linux-kernel - Re: [PATCH 1/2] add tunable

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Date:	Thu, 25 Oct 2007 17:02:12 +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 1/2] add tunable_notifier function ,take2

Randy Dunlap wrote:
> On Thu, 18 Oct 2007 17:53:00 +0900 Takenori Nagano wrote:
> 
>> This patch adds new notifier function tunable_notifier_chain. Its base is
>> atomic_notifier_chain.
>>
>> Thanks,
>>
>> ---
>>
>> Signed-off-by: Takenori Nagano <t-nagano@...jp.nec.com>
>>
>> ---
>> diff -uprN linux-2.6.23.orig/kernel/sys.c linux-2.6.23/kernel/sys.c
>> --- linux-2.6.23.orig/kernel/sys.c	2007-10-10 05:31:38.000000000 +0900
>> +++ linux-2.6.23/kernel/sys.c	2007-10-18 10:08:52.728000000 +0900
>> @@ -38,6 +38,7 @@
>>  #include <linux/syscalls.h>
>>  #include <linux/kprobes.h>
>>  #include <linux/user_namespace.h>
>> +#include <linux/debugfs.h>
>>  
>>  #include <asm/uaccess.h>
>>  #include <asm/io.h>
>> @@ -393,6 +394,243 @@ int blocking_notifier_call_chain(struct 
>>  EXPORT_SYMBOL_GPL(blocking_notifier_call_chain);
> 
>> +/**
>> + *	tunable_atomic_notifier_chain_register
>> + *				- Add notifier to an tunable notifier chain
> 
> Function name & short description must be on one (long?) line.  :(

OK. I'll fix next version.

>> +
>> +int __kprobes __tunable_atomic_notifier_call_chain(
>> +					struct tunable_atomic_notifier_head *nh,
>> +					unsigned long val, void *v,
>> +					int nr_to_call, int *nr_calls)
>> +{
>> +	int ret;
>> +
>> +	rcu_read_lock();
>> +	ret = notifier_call_chain(&nh->head, val, v, nr_to_call, nr_calls);
>> +	rcu_read_unlock();
>> +	return ret;
>> +}
>> +
>> +EXPORT_SYMBOL_GPL(__tunable_atomic_notifier_call_chain);
> 
> Blank line is usually omitted before EXPORT_SYMBOL....

OK. I'll fix, too.

Thanks,
  Takenori

> ---
> ~Randy
> 
> 
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