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SubjectRe: [RFC] [PATCH] perf: Attaching an event to a specific PMU

* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

> On Wed, 2011-07-06 at 19:10 +0200, Ingo Molnar wrote:
> >
> > I think Peter suggested it that an open() done in /sys should
> > give us a handle to a given event?
>
> No, more like the open of a sysfs file could also grab a refcount
> on the module. All it would take is a custom open/close method for
> sysfs files. Now I have no clue how to do that, but that's another
> issue.
>
> Also, I really don't see the point. With modular PMUs there's
> always races against unload, just don't do that or live with it.

I don't think it's a big issue either - module load/unloads are rare.

Thanks,

Ingo


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