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SubjectRe: [RFC PATCH 3/3 -v2] x86,smp: auto tune spinlock backoff delay factor
On 12/21/2012 10:29 PM, Eric Dumazet wrote:
> On Fri, 2012-12-21 at 18:56 -0500, Rik van Riel wrote:
>> + int *delay_ptr = &per_cpu(spinlock_delay, smp_processor_id());
>> + int delay = *delay_ptr;
>
> int delay = __this_cpu_read(spinlock_delay);
>
>> }
>> + *delay_ptr = delay;
>
> __this_cpu_write(spinlock_delay, delay);

Thanks for that cleanup. I have applied it to my code.



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