linux-kernel - Re: [PATCH 07/45] CPU hotplug: Expose the new debug config option

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Date:	Mon, 24 Jun 2013 00:28:35 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
CC:	tglx@...utronix.de, peterz@...radead.org, tj@...nel.org,
	oleg@...hat.com, paulmck@...ux.vnet.ibm.com, rusty@...tcorp.com.au,
	mingo@...nel.org, akpm@...ux-foundation.org, namhyung@...nel.org,
	walken@...gle.com, vincent.guittot@...aro.org,
	laijs@...fujitsu.com, rostedt@...dmis.org,
	wangyun@...ux.vnet.ibm.com, xiaoguangrong@...ux.vnet.ibm.com,
	sbw@....edu, fweisbec@...il.com, zhong@...ux.vnet.ibm.com,
	nikunj@...ux.vnet.ibm.com, linux-pm@...r.kernel.org,
	linux-arch@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Paul E. McKenney" <paul.mckenney@...aro.org>,
	Akinobu Mita <akinobu.mita@...il.com>,
	Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH 07/45] CPU hotplug: Expose the new debug config option

On 06/23/2013 08:38 PM, Sergei Shtylyov wrote:
> Hello.
> 
> On 23-06-2013 17:39, Srivatsa S. Bhat wrote:
> 
>> Now that we have all the pieces of the CPU hotplug debug infrastructure
>> in place, expose the feature by growing a new Kconfig option,
>> CONFIG_DEBUG_HOTPLUG_CPU.
> 
>> Cc: Andrew Morton <akpm@...ux-foundation.org>
>> Cc: "Paul E. McKenney" <paul.mckenney@...aro.org>
>> Cc: Akinobu Mita <akinobu.mita@...il.com>
>> Cc: Catalin Marinas <catalin.marinas@....com>
>> Cc: Michel Lespinasse <walken@...gle.com>
>> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
>> ---
> 
>>   lib/Kconfig.debug |    9 +++++++++
>>   1 file changed, 9 insertions(+)
> 
>> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
>> index 566cf2b..6be1e72 100644
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -512,6 +512,15 @@ config DEBUG_PREEMPT
>>         if kernel code uses it in a preemption-unsafe way. Also, the
>> kernel
>>         will detect preemption count underflows.
>>
>> +config DEBUG_HOTPLUG_CPU
>> +    bool "Debug CPU hotplug"
>> +    depends on HOTPLUG_CPU
>> +    default n
> 
>     It's the default default, no need to specify it.
> 

Ah, I see. Thanks!

Regards,
Srivatsa S. Bhat

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