On Wed, 31 Oct 2012, Shan Wei wrote:
> Signed-off-by: Shan Wei <davids...@tencent.com>
> ---
> kernel/rcutree.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/rcutree.c b/kernel/rcutree.c
> index 74df86b..3a21fcf 100644
> --- a/kernel/rcutree.c
> +++ b/kernel/rcutree.c
> @@ -1960,7 +1960,7 @@ static void force_quiescent_state(struct rcu_state *rsp)
> struct rcu_node *rnp_old = NULL;
>
> /* Funnel through hierarchy to reduce memory contention. */
> - rnp = per_cpu_ptr(rsp->rda, raw_smp_processor_id())->mynode;
> + rnp = this_cpu_ptr(rsp->rda)->mynode;
Do
rnp = this_cpu_read(rsp->rda->mynode);
instad.
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