Re: [PATCH 6/8] cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c

From: Mike Travis
Date: Fri Jul 18 2008 - 18:36:54 EST


Ingo Molnar wrote:
> * Ingo Molnar <mingo@xxxxxxx> wrote:
>
>> hmmm:
>>
>>> --- linux-2.6.tip.orig/lib/smp_processor_id.c
>>> +++ linux-2.6.tip/lib/smp_processor_id.c
>>> unsigned long preempt_count = preempt_count();
>>> int this_cpu = raw_smp_processor_id();
>>> - cpumask_t this_mask;
>>> + cpumask_of_cpu_ptr_declare(this_mask);
>>> - this_mask = cpumask_of_cpu(this_cpu);
>>> + cpumask_of_cpu_ptr_next(this_mask, cpu);
>> 'cpu' is not declared ...

Hmm is right...! ;-)

Went through my logs and didn't see the file explicitly listed as
compiled but it still should have caught it.

Thanks for the fix!

>
> commit 06f8d00e9eecb738c99b737ac38a585ea7583ad5
> Author: Ingo Molnar <mingo@xxxxxxx>
> Date: Fri Jul 18 22:34:00 2008 +0200
>
> cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix
>
> fix typo.
>
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
> ---
> lib/smp_processor_id.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
> index 9fb2df0..c4381d9 100644
> --- a/lib/smp_processor_id.c
> +++ b/lib/smp_processor_id.c
> @@ -23,7 +23,7 @@ notrace unsigned int debug_smp_processor_id(void)
> * Kernel threads bound to a single CPU can safely use
> * smp_processor_id():
> */
> - cpumask_of_cpu_ptr_next(this_mask, cpu);
> + cpumask_of_cpu_ptr_next(this_mask, this_cpu);
>
> if (cpus_equal(current->cpus_allowed, *this_mask))
> goto out;
> --
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