linux-kernel - Re: [RESEND PATCH] tools/power/x86/intel_pstate

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Message-ID: <CAJZ5v0gqxj97yADB4tpxONwHtrdasZREaFqLfht9id9H+Fx1QA@mail.gmail.com>
Date:   Mon, 17 Apr 2017 00:57:10 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Doug Smythies <doug.smythies@...il.com>
Cc:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <len.brown@...el.com>,
        Doug Smythies <dsmythies@...us.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>
Subject: Re: [RESEND PATCH] tools/power/x86/intel_pstate_tracer: Adjust
 directory permissions

On Sun, Apr 16, 2017 at 5:17 PM, Doug Smythies <doug.smythies@...il.com> wrote:
> Depending on what is being done, the intel_pstate_tracer.py script
> needs to be run as root, or can be run as a regular user.
> If run the first time as root the results directory will be
> incorrect for any subsequent run as a regular user.

Which is OK.

For security reasons, non-root should not be able to modify root-owned
directories.

Thanks,
Rafael