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SubjectRe: [PATCH 6/9] kernel: padata : use this_cpu_ptr per-cpu helper
On Wed, 31 Oct 2012, Shan Wei wrote:

> From: Shan Wei <davidshan@tencent.com>
>
>
> Signed-off-by: Shan Wei <davidshan@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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