[PATCH v2 5/9] kernel: padata : use this_cpu_read per-cpu helper
From: Shan Wei <hidden>
Date: 2012-11-02 16:01:56
Also in:
lkml
Subsystem:
padata parallel execution mechanism, the rest · Maintainers:
Steffen Klassert, Daniel Jordan, Linus Torvalds
From: Shan Wei <redacted> Signed-off-by: Shan Wei <redacted> --- kernel/padata.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/padata.c b/kernel/padata.c
index 89fe3d1..cf94137 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; }
--
1.7.1