linux-kernel - [tip:perf/core] perf evsel: Improve tracepoint constructor setup

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Date:	Fri, 28 Sep 2012 09:25:41 -0700
From:	tip-bot for Arnaldo Carvalho de Melo <acme@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, eranian@...gle.com, paulus@...ba.org,
	acme@...hat.com, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org, efault@....de, namhyung@...il.com,
	jolsa@...hat.com, fweisbec@...il.com, dsahern@...il.com,
	tglx@...utronix.de
Subject: [tip:perf/core] perf evsel: Improve tracepoint constructor setup

Commit-ID:  0b80f8b32f31f80e001fb6355fd86769555c4a3c
Gitweb:     http://git.kernel.org/tip/0b80f8b32f31f80e001fb6355fd86769555c4a3c
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Wed, 26 Sep 2012 12:28:26 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 26 Sep 2012 12:28:26 -0300

perf evsel: Improve tracepoint constructor setup

It needs to properly set the sample_type, sample_period and the KVM
related perf_event_attr fields.

Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/evsel.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 00936ad..2467eaf 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -117,14 +117,18 @@ struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx)
 
 	if (evsel != NULL) {
 		struct perf_event_attr attr = {
-			.type = PERF_TYPE_TRACEPOINT,
+			.type	       = PERF_TYPE_TRACEPOINT,
+			.sample_type   = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
+					  PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD),
 		};
 
 		evsel->tp_format = event_format__new(sys, name);
 		if (evsel->tp_format == NULL)
 			goto out_free;
 
+		event_attr_init(&attr);
 		attr.config = evsel->tp_format->id;
+		attr.sample_period = 1;
 		perf_evsel__init(evsel, &attr, idx);
 		evsel->name = evsel->tp_format->name;
 	}
--
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