Re: [PATCH v5 44/45] CPU hotplug, stop_machine: Decouple CPU hotplug from stop_machine() in Kconfig

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On Tue, Jan 22, 2013 at 01:15:22PM +0530, Srivatsa S. Bhat wrote:
> ... and also cleanup a comment that refers to CPU hotplug being dependent on
> stop_machine().
> 
> Cc: David Howells <dhowells@xxxxxxxxxx>
> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>

Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

(Hey, I thought I owed myself an easy one!)

> ---
> 
>  include/linux/stop_machine.h |    2 +-
>  init/Kconfig                 |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
> index 3b5e910..ce2d3c4 100644
> --- a/include/linux/stop_machine.h
> +++ b/include/linux/stop_machine.h
> @@ -120,7 +120,7 @@ int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
>   * @cpus: the cpus to run the @fn() on (NULL = any online cpu)
>   *
>   * Description: This is a special version of the above, which assumes cpus
> - * won't come or go while it's being called.  Used by hotplug cpu.
> + * won't come or go while it's being called.
>   */
>  int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index be8b7f5..048a0c5 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1711,7 +1711,7 @@ config INIT_ALL_POSSIBLE
>  config STOP_MACHINE
>  	bool
>  	default y
> -	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
> +	depends on (SMP && MODULE_UNLOAD)
>  	help
>  	  Need stop_machine() primitive.
> 
> 

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