Re: [RFC] perf_events: support for uncore a.k.a. nest units

[Peter Zijlstra]

On Wed, 2010-04-21 at 17:42 +0800, Lin Ming wrote:
> +       /*
> +        * TBD: will move this to pmu register function
> +        * when multiple hw pmu support is added
> +        */
> +       pmu.flag = alloc_percpu(u8);
> +       if (!pmu.flag)
> +               return; 

Why not simply use a field in struct cpu_hw_events?

That's where we track all per-cpu pmu state.

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