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

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Message-ID: <51C70F82.4030101@cogentembedded.com>
Date:	Sun, 23 Jun 2013 19:08:50 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.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

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.

WBR, Sergei

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