linux-kernel - [PATCH 11/14] perf test: Apply new perf_mmap__read

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Message-Id: <1519945751-37786-11-git-send-email-kan.liang@linux.intel.com>
Date:   Thu,  1 Mar 2018 18:09:08 -0500
From:   kan.liang@...ux.intel.com
To:     acme@...nel.org, mingo@...hat.com, linux-kernel@...r.kernel.org
Cc:     jolsa@...hat.com, namhyung@...nel.org, wangnan0@...wei.com,
        ak@...ux.intel.com, Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH 11/14] perf test: Apply new perf_mmap__read_event() interface for sw-clock

From: Kan Liang <kan.liang@...ux.intel.com>

The perf test 'sw-clock' still use the legacy interface.

No functional change.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/tests/sw-clock.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index f6c72f9..206a111 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -39,6 +39,8 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 	};
 	struct cpu_map *cpus;
 	struct thread_map *threads;
+	struct perf_mmap *md;
+	u64 end, start;
 
 	attr.sample_freq = 500;
 
@@ -93,7 +95,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 
 	perf_evlist__disable(evlist);
 
-	while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) {
+	md = &evlist->mmap[0];
+	if (perf_mmap__read_init(md, 0, &start, &end) < 0)
+		goto out_init;
+
+	while ((event = perf_mmap__read_event(md, 0, &start, end)) != NULL) {
 		struct perf_sample sample;
 
 		if (event->header.type != PERF_RECORD_SAMPLE)
@@ -108,9 +114,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 		total_periods += sample.period;
 		nr_samples++;
 next_event:
-		perf_evlist__mmap_consume(evlist, 0);
+		perf_mmap__consume(md, 0);
 	}
+	perf_mmap__read_done(md);
 
+out_init:
 	if ((u64) nr_samples == total_periods) {
 		pr_debug("All (%d) samples have period value of 1!\n",
 			 nr_samples);
-- 
2.4.11