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| author | Shan Wei <shanwei88@gmail.com> | 2012-12-06 17:16:23 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-12-06 17:16:23 +0800 |
| commit | f0fcf2002bf122afe8fe1b74b2cee3710c7e6cd9 (patch) | |
| tree | 46168e26a49dc4207803ff10c056f2cd74393f46 /kernel/padata.c | |
| parent | a465348ff5d3e564ae0bcde63d5ef2066c079aad (diff) | |
| download | lwn-f0fcf2002bf122afe8fe1b74b2cee3710c7e6cd9.tar.gz lwn-f0fcf2002bf122afe8fe1b74b2cee3710c7e6cd9.zip | |
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.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/padata.c b/kernel/padata.c index 89fe3d1b9efb..072f4ee4eb89 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; } |