linux-kernel - [PATCH 17/23] perf sched: Add -q/--quiet option

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Date:   Wed,  8 Mar 2017 00:08:45 +0900
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Jiri Olsa <jolsa@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, kernel-team@....com
Subject: [PATCH 17/23] perf sched: Add -q/--quiet option

The -q/--quiet option is to suppress any message.  Sometimes users just
want to run the command and it can be used for that case.

Suggested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/Documentation/perf-sched.txt |  8 ++++++++
 tools/perf/builtin-sched.c              | 12 ++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt
index d33deddb0146..7b5fbde0c8f9 100644
--- a/tools/perf/Documentation/perf-sched.txt
+++ b/tools/perf/Documentation/perf-sched.txt
@@ -70,10 +70,18 @@ OPTIONS
 --verbose::
         Be more verbose. (show symbol address, etc)
 
+-q::
+--quiet::
+	Do not show any message.  (Suppress -v)
+
 -D::
 --dump-raw-trace=::
         Display verbose dump of the sched data.
 
+-f::
+--force::
+        Don't do ownership validation.
+
 OPTIONS for 'perf sched map'
 ----------------------------
 
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index b94cf0de715a..9847b5bf081c 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -3297,6 +3297,7 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 		    "dump raw trace in ASCII"),
 	OPT_BOOLEAN('f', "force", &sched.force, "don't complain, do it"),
+	OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
 	OPT_END()
 	};
 	const struct option latency_options[] = {
@@ -3396,6 +3397,9 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (!argc)
 		usage_with_options(sched_usage, sched_options);
 
+	if (quiet)
+		perf_quiet_option();
+
 	/*
 	 * Aliased to 'perf script' for now:
 	 */
@@ -3410,6 +3414,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 			argc = parse_options(argc, argv, latency_options, latency_usage, 0);
 			if (argc)
 				usage_with_options(latency_usage, latency_options);
+			if (quiet && verbose >= 0)
+				perf_quiet_option();
 		}
 		setup_sorting(&sched, latency_options, latency_usage);
 		return perf_sched__lat(&sched);
@@ -3418,6 +3424,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 			argc = parse_options(argc, argv, map_options, map_usage, 0);
 			if (argc)
 				usage_with_options(map_usage, map_options);
+			if (quiet && verbose >= 0)
+				perf_quiet_option();
 		}
 		sched.tp_handler = &map_ops;
 		setup_sorting(&sched, latency_options, latency_usage);
@@ -3428,6 +3436,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 			argc = parse_options(argc, argv, replay_options, replay_usage, 0);
 			if (argc)
 				usage_with_options(replay_usage, replay_options);
+			if (quiet && verbose >= 0)
+				perf_quiet_option();
 		}
 		return perf_sched__replay(&sched);
 	} else if (!strcmp(argv[0], "timehist")) {
@@ -3436,6 +3446,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 					     timehist_usage, 0);
 			if (argc)
 				usage_with_options(timehist_usage, timehist_options);
+			if (quiet && verbose >= 0)
+				perf_quiet_option();
 		}
 		if (sched.show_wakeups && sched.summary_only) {
 			pr_err(" Error: -s and -w are mutually exclusive.\n");
-- 
2.11.0