linux-kernel - Re: [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform

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Date:   Fri, 17 Jan 2020 08:23:57 -0800
From:   Andi Kleen <ak@...ux.intel.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     roman.sudarikov@...ux.intel.com, peterz@...radead.org,
        mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, linux-kernel@...r.kernel.org,
        eranian@...gle.com, bgregg@...flix.com, kan.liang@...ux.intel.com,
        alexander.antonov@...el.com
Subject: Re: [PATCH v4 2/2] perf x86: Exposing an Uncore unit to PMON for Intel Xeon® server platform

> I thought I was nice and gentle last time and said that this was a
> really bad idea and you would fix it up.  That didn't happen, so I am
> being explicit here, THIS IS NOT AN ACCEPTABLE FILE OUTPUT FOR A SYSFS
> FILE.

Could you suggest how such a 1:N mapping should be expressed instead in
sysfs?

-Andi