Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1282827

[PATCH 6/7] perf stat: Move enable_on_exec setup under earlier code

From Jiri Olsa <jolsa@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 6/7] perf stat: Move enable_on_exec setup under earlier code
Date 2015-12-03 10:10 +0100
Message-ID <qBy3M-2WY-35@gated-at.bofh.it> (permalink)
References <qBy3L-2WY-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


It's more readable this way and we can save one
perf_evsel__is_group_leader condition in current code.

Link: http://lkml.kernel.org/n/tip-y9s28dql028b0as614rkeul9@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/builtin-stat.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2e70610649a1..e74712dee242 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -173,17 +173,20 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
 	 * either manually by us or by kernel via enable_on_exec
 	 * set later.
 	 */
-	if (perf_evsel__is_group_leader(evsel))
+	if (perf_evsel__is_group_leader(evsel)) {
 		attr->disabled = 1;
 
-	if (target__has_cpu(&target))
-		return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
-
-	if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
-		if (!initial_delay)
+		/*
+		 * In case of initial_delay we enable tracee
+		 * events manually.
+		 */
+		if (target__none(&target) && !initial_delay)
 			attr->enable_on_exec = 1;
 	}
 
+	if (target__has_cpu(&target))
+		return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
+
 	return perf_evsel__open_per_thread(evsel, evsel_list->threads);
 }
 
-- 
2.4.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH 6/7] perf stat: Move enable_on_exec setup under earlier code Jiri Olsa <jolsa@kernel.org> - 2015-12-03 10:10 +0100
  [tip:perf/core] perf stat:   Move enable_on_exec setup under earlier code tip-bot for Jiri Olsa <tipbot@zytor.com> - 2015-12-08 05:40 +0100

csiph-web