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Date: Wed, 26 Jun 2013 11:56:31 +0200
From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: Robert Richter <rric@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
        Jiri Olsa <jolsa@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 00/14] perf, persistent: Kernel updates for perf tool
 integration
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On Wed, Jun 26, 2013 at 11:46:34AM +0200, Ingo Molnar wrote:
> If already existing persistent events show up somewhere in sysfs
> (or in a separate pseudofilesystem) then an open() of them [given
> sufficient privileges of the caller, etc.] could attach to them.

Yep, I think we want to say sys_perf_event_open(attr.persistent=1) which
would give you a file descriptor to an already existing persistent event
with attr.config=<id>.

If it doesn't exist, it creates it.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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