Re: [PATCH v3 6/9] rcu: use __this_cpu_read helper instead ofper_cpu_ptr(p, raw_smp_processor_id())

[Christoph Lameter]

On Fri, 9 Nov 2012, Shan Wei wrote:

>  	/* Funnel through hierarchy to reduce memory contention. */
> -	rnp = per_cpu_ptr(rsp->rda, raw_smp_processor_id())->mynode;
> +	rnp = __this_cpu_read(rsp->rda->mynode);
>  	for (; rnp != NULL; rnp = rnp->parent) {

Acked-by: Christoph Lameter <cl@xxxxxxxxx>

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