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From: ebiederm@xmission.com (Eric W. Biederman)
To: Jessie Frazelle <jessfraz@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
        Aleksa Sarai <asarai@suse.com>, Ingo Molnar <mingo@redhat.com>,
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Date: Tue, 08 Aug 2017 10:17:35 -0500
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        (Jessie Frazelle's message of "Mon, 7 Aug 2017 11:18:18 -0400")
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Subject: Re: [PATCH v2] sched: debug: use task_pid_nr_ns in /proc/$pid/sched
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Jessie Frazelle <jessfraz@google.com> writes:

> Thanks for patching this :) Guess I will find a different rabbit in a
> hat to detect if running in a pid namespace ;)

I want to say that stating the /proc/pid/ns/pid files ought to be an
easy way.  But thinking about it they permissions on those might be a
bit tricky.

Eric