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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Jiri Olsa <jolsa@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Andi Kleen <ak@linux.intel.com>,
        David Ahern <dsahern@gmail.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.15 151/189] perf evsel: Fix period/freq terms
 setup
Thread-Topic: [PATCH AUTOSEL for 4.15 151/189] perf evsel: Fix period/freq
 terms setup
Thread-Index: AQHTz5hVyGc5ZkM9zEuIu4XHLmjWZA==
Date:   Mon, 9 Apr 2018 00:18:50 +0000
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From: Jiri Olsa <jolsa@kernel.org>

[ Upstream commit 49c0ae80eb32426fa133246200628e529067c595 ]

Stephane reported that we don't set properly PERIOD sample type for
events with period term defined.

Before:
  $ perf record -e cpu/cpu-cycles,period=3D1000/u ls
  $ perf evlist -v
  cpu/cpu-cycles,period=3D1000/u: ... sample_type: IP|TID|TIME|PERIOD, ...

After:
  $ perf record -e cpu/cpu-cycles,period=3D1000/u ls
  $ perf evlist -v
  cpu/cpu-cycles,period=3D1000/u: ... sample_type: IP|TID|TIME, ...

Setting PERIOD sample type based on period term setup.

Committer note:

When we use -c or a period=3DN term in the event definition, then we don't
need to ask the kernel, for this event, via perf_event_attr.sample_type
|=3D PERF_SAMPLE_PERIOD, to put the event period in each sample for this
event, as we know it already, it is in perf_event_attr.sample_period.

Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180201083812.11359-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 tools/perf/util/evsel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index d23a8c51b307..7349a5d22464 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -736,12 +736,14 @@ static void apply_config_terms(struct perf_evsel *evs=
el,
 			if (!(term->weak && opts->user_interval !=3D ULLONG_MAX)) {
 				attr->sample_period =3D term->val.period;
 				attr->freq =3D 0;
+				perf_evsel__reset_sample_bit(evsel, PERIOD);
 			}
 			break;
 		case PERF_EVSEL__CONFIG_TERM_FREQ:
 			if (!(term->weak && opts->user_freq !=3D UINT_MAX)) {
 				attr->sample_freq =3D term->val.freq;
 				attr->freq =3D 1;
+				perf_evsel__set_sample_bit(evsel, PERIOD);
 			}
 			break;
 		case PERF_EVSEL__CONFIG_TERM_TIME:
--=20
2.15.1