linux-kernel - Re: [PATCH] perf/core: Add macros for possible sysctl_perf_event

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Message-ID: <06670b4a-7888-f0a8-87f4-dfe9c7138aa2@arm.com>
Date:   Tue, 12 Jul 2022 08:34:03 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     James Clark <james.clark@....com>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf/core: Add macros for possible
 sysctl_perf_event_paranoid values



On 7/11/22 17:49, Peter Zijlstra wrote:
> On Mon, Jul 11, 2022 at 02:55:12PM +0530, Anshuman Khandual wrote:
>> Enumerating [-1, 0, 1, 2] paranoid range values in kernel too, does not add
>> much value as well ?
> 
> That's what the user-interface requires as well. How is obscuring the
> values the user has to explicitly poke in help things?

Right, users still have the write raw numbers into the sysfs file.