linux-kernel - Re: [PATCH 1/3] perf: Do not allow to create kernel events without handler

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Message-ID: <20140801151920.GA1186@krava.brq.redhat.com>
Date:	Fri, 1 Aug 2014 17:19:20 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH 1/3] perf: Do not allow to create kernel events without
 handler

On Fri, Aug 01, 2014 at 04:56:37PM +0200, Peter Zijlstra wrote:
> On Fri, Aug 01, 2014 at 02:33:00PM +0200, Jiri Olsa wrote:
> > Force kernel events to specify the handler, because
> > there's no use for kernel perf event without it.
> > 
> 
> I think I found a reason; although there is currently no such user, the
> simple counting events, they don't have overflow handlers at all.

ah right.. ok 

jirka
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