linux-kernel - Re: [PATCH 1/2] perf: Add persistent event facilities

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Message-ID: <1337335753.573.9.camel@twins>
Date:	Fri, 18 May 2012 12:09:13 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Borislav Petkov <bp@...64.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Borislav Petkov <borislav.petkov@....com>
Subject: Re: [PATCH 1/2] perf: Add persistent event facilities

On Wed, 2012-03-21 at 15:34 +0100, Borislav Petkov wrote:
> +                               persistent     :  1, /* always-on event */

Should creating something like that be privileged?

And it looks like you allow creating persistent per-task events; is that
useful, if so why? And like already pointed out, your cleanup seems
broken in that case.


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