linux-kernel - Re: [PATCH v2 03/14] perf: Add persistent event facilities

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Message-ID: <20130624192616.GB24827@pd.tnic>
Date:	Mon, 24 Jun 2013 21:26:16 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Robert Richter <rric@...nel.org>, Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org,
	Borislav Petkov <bp@...e.de>,
	Robert Richter <robert.richter@...aro.org>
Subject: Re: [PATCH v2 03/14] perf: Add persistent event facilities

On Mon, Jun 24, 2013 at 11:48:30AM +0200, Peter Zijlstra wrote:
> On Tue, Jun 11, 2013 at 06:42:29PM +0200, Robert Richter wrote:
> > +int perf_add_persistent_event_by_id(int id)
> > +{
> > +	struct perf_event_attr *attr;
> > +
> > +	attr = kzalloc(sizeof(*attr), GFP_KERNEL);
> > +	if (!attr)
> > +		return -ENOMEM;
> > +
> > +	attr->sample_period	= 1;
> > +	attr->wakeup_events	= 1;
> > +	attr->sample_type	= PERF_SAMPLE_RAW;
> > +	attr->persistent	= 1;
> > +	attr->config		= id;
> > +	attr->type		= PERF_TYPE_TRACEPOINT;
> > +	attr->size		= sizeof(*attr);
> > +
> > +	return perf_add_persistent_event(attr, CPU_BUFFER_NR_PAGES);
> > +}
> 
> I would call this what it is: perf_add_persistent_tracepoint(), or so
> :-)

While we're at it, can we agree on a shortened variant for "persistent"
- it is too much to type and makes function names uglily¹ long.


¹ look at me making up adverbs.

-- 
Regards/Gruss,
    Boris.

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