Messages in this thread | | | Date | Fri, 9 Nov 2012 20:14:00 +0000 | From | Christoph Lameter <> | Subject | Re: [PATCH v3 6/9] rcu: use __this_cpu_read helper instead of per_cpu_ptr(p, raw_smp_processor_id()) |
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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@linux.com>
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