linux-kernel - [PATCH 7/8] perf trace: Move event delivery to deliver

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Date:   Wed,  5 Dec 2018 17:05:08 +0100
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Luis Claudio R. Goncalves" <lclaudio@...g.org>, ldv@...linux.org,
        esyr@...hat.com, Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH 7/8] perf trace: Move event delivery to deliver_event function

Moving event delivery code to deliver_event function,
so it's easier to add conditional ordered delivery
coming in following patches.

Link: http://lkml.kernel.org/n/tip-qz9wzti2cw6q7swja0h2x4sf@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-trace.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index a663ec346a8e..b4b1dafe882a 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2641,6 +2641,21 @@ static int trace__set_filter_pids(struct trace *trace)
 	return err;
 }
 
+static int deliver_event(struct trace *trace, union perf_event *event)
+{
+	struct perf_evlist *evlist = trace->evlist;
+	struct perf_sample sample;
+	int err;
+
+	err = perf_evlist__parse_sample(evlist, event, &sample);
+	if (err)
+		fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
+	else
+		trace__handle_event(trace, event, &sample);
+
+	return 0;
+}
+
 static int trace__run(struct trace *trace, int argc, const char **argv)
 {
 	struct perf_evlist *evlist = trace->evlist;
@@ -2806,18 +2821,10 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 			continue;
 
 		while ((event = perf_mmap__read_event(md)) != NULL) {
-			struct perf_sample sample;
-
 			++trace->nr_events;
 
-			err = perf_evlist__parse_sample(evlist, event, &sample);
-			if (err) {
-				fprintf(trace->output, "Can't parse sample, err = %d, skipping...\n", err);
-				goto next_event;
-			}
+			deliver_event(trace, event);
 
-			trace__handle_event(trace, event, &sample);
-next_event:
 			perf_mmap__consume(md);
 
 			if (interrupted)
-- 
2.17.2