On Wed, 31 Oct 2012, Shan Wei wrote:

> From: Shan Wei <davids...@tencent.com>
>
>
> Signed-off-by: Shan Wei <davids...@tencent.com>
> ---
>  kernel/padata.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/padata.c b/kernel/padata.c
> index 89fe3d1..70dffe8 100644
> --- a/kernel/padata.c
> +++ b/kernel/padata.c
> @@ -204,7 +204,7 @@ static struct padata_priv *padata_get_next(struct 
> parallel_data *pd)
>               goto out;
>       }
>
> -     queue = per_cpu_ptr(pd->pqueue, smp_processor_id());
> +     queue = this_cpu_ptr(pd->pqueue);
>       if (queue->cpu_index == next_queue->cpu_index) {

Its simpler to just remove the per_cpu op completely and change the if
statement to

        if (this_cpu_read(pd->pqueue->cpu_index) == next_queue->cpu_index))
{

..


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