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kernel: padata : use this_cpu_ptr per-cpu helper

PATCH In review Shan Wei 2 participants 2 messages Oct 31, 2012

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Crypto API Padata parallel execution mechanism
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Shan Wei

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#0 lore raw

PATCH 6/9 kernel: padata : use this_cpu_ptr per-cpu helper

From: Shan Wei <[email protected]>

Signed-off-by Shan Wei <[email protected]>
---
 kernel/padata.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
kernel/padata.c +1 -1
index 89fe3d1..70dffe8 100644
@@ -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;
Signature · 1 line
1.7.1
#1 lore raw
Quoted 13 lines · Shan Wei

From: Shan Wei <[email protected]>

Signed-off-by Shan Wei <[email protected]>
---
 kernel/padata.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
kernel/padata.c +0 -0
index 89fe3d1..70dffe8 100644

kernel/padata.c static struct padata_priv *padata_get_next(struct parallel_data *pd) · line 208

Quoted 6 lines
kernel/padata.c +1 -1
@@ -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))

{

..