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

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On 02/09/2013 05:45 AM, Paul E. McKenney wrote:
> 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!)
> 

Haha ;-)

Regards,
Srivatsa S. Bhat

>> ---
>>
>>  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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