* [PATCH 6/9] kernel: padata : use this_cpu_ptr per-cpu helper
@ 2012-10-31 11:22 Shan Wei
2012-10-31 17:45 ` Christoph Lameter
0 siblings, 1 reply; 2+ messages in thread
From: Shan Wei @ 2012-10-31 11:22 UTC (permalink / raw)
To: steffen.klassert, Kernel-Maillist, linux-crypto, cl
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) {
padata = ERR_PTR(-ENODATA);
goto out;
--
1.7.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 6/9] kernel: padata : use this_cpu_ptr per-cpu helper
2012-10-31 11:22 [PATCH 6/9] kernel: padata : use this_cpu_ptr per-cpu helper Shan Wei
@ 2012-10-31 17:45 ` Christoph Lameter
0 siblings, 0 replies; 2+ messages in thread
From: Christoph Lameter @ 2012-10-31 17:45 UTC (permalink / raw)
To: Shan Wei; +Cc: steffen.klassert, Kernel-Maillist, linux-crypto
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))
{
..
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-10-31 17:45 ` Christoph Lameter
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