Re: [PATCH 6/9] kernel: padata : use this_cpu_ptr per-cpu helper
From: Christoph Lameter <hidden>
Date: 2012-10-31 17:45:52
Also in:
lkml
On Wed, 31 Oct 2012, Shan Wei wrote:
quoted hunk ↗ jump to hunk
From: Shan Wei <redacted> Signed-off-by: Shan Wei <redacted> --- 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))
{
..