linux-kernel - Re: [PATCH v6 3/4] perf Documentation: add event parameters

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Date:	Mon, 22 Dec 2014 11:34:36 -0800
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>, dev@...yps.com,
	peterz@...radead.org, hbabu@...ibm.com,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v6 3/4] perf Documentation: add event parameters

Jiri Olsa [jolsa@...hat.com] wrote:
| On Sun, Dec 21, 2014 at 11:49:26PM -0800, Sukadev Bhattiprolu wrote:
| > From: Cody P Schafer <cody@...ux.vnet.ibm.com>
| > +		In the case of the last example, a value replacing "?" would
| > +		need to be provided by the user selecting the particular event.
| > +		This is referred to as "event parameterization". All
| > +		non-numerical values indicate an event parameter.
| 
| I see.. here's the glitch ;-) I thought we agreed on forcing '?'
| as the value for param events, not 'All non-numerical values'

Yes, it is currently more broad than needed, but it is not really
user input - we are just parsing sysfs entries that developer specified
in the kernel. If necessary, we can tighten that independently ?
| 
| thanks,
| jirka

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