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authorShan Wei <shanwei88@gmail.com>2012-12-06 17:16:23 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2012-12-06 17:16:23 +0800
commitf0fcf2002bf122afe8fe1b74b2cee3710c7e6cd9 (patch)
tree46168e26a49dc4207803ff10c056f2cd74393f46 /kernel/padata.c
parenta465348ff5d3e564ae0bcde63d5ef2066c079aad (diff)
padata: use __this_cpu_read per-cpu helper
For bottom halves off, __this_cpu_read is better. Signed-off-by: Shan Wei <davidshan@tencent.com> Reviewed-by: Christoph Lameter <cl@linux.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'kernel/padata.c')
-rw-r--r--kernel/padata.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/padata.c b/kernel/padata.c
index 89fe3d1b9ef..072f4ee4eb8 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -171,7 +171,7 @@ static struct padata_priv *padata_get_next(struct parallel_data *pd)
{
int cpu, num_cpus;
unsigned int next_nr, next_index;
- struct padata_parallel_queue *queue, *next_queue;
+ struct padata_parallel_queue *next_queue;
struct padata_priv *padata;
struct padata_list *reorder;
@@ -204,8 +204,7 @@ static struct padata_priv *padata_get_next(struct parallel_data *pd)
goto out;
}
- queue = per_cpu_ptr(pd->pqueue, smp_processor_id());
- if (queue->cpu_index == next_queue->cpu_index) {
+ if (__this_cpu_read(pd->pqueue->cpu_index) == next_queue->cpu_index) {
padata = ERR_PTR(-ENODATA);
goto out;
}