Re: [RFC][PATCH 0/5] preempt_count rework

From: H. Peter Anvin
Date: Wed Aug 14 2013 - 11:44:37 EST

On 08/14/2013 08:39 AM, Mike Galbraith wrote:
> could the rq = cpu_rq(cpu) sequence be improved cycle expenditure
> wise by squirreling rq pointer away in a percpu this_rq, and replacing
> cpu_rq(cpu) above with a __this_cpu_read(this_rq) version of this_rq()?



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