linux-kernel - [PATCH 13/14] perf test: Apply new perf_mmap__read

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Date:   Thu,  1 Mar 2018 18:09:10 -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 13/14] perf test: Apply new perf_mmap__read_event() interface for task-exit

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

The perf test 'task-exit' still use the legacy interface.

No functional change.

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

diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 01b62b8..20884bc 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -47,6 +47,8 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
 	char sbuf[STRERR_BUFSIZE];
 	struct cpu_map *cpus;
 	struct thread_map *threads;
+	struct perf_mmap *md;
+	u64 end, start;
 
 	signal(SIGCHLD, sig_handler);
 
@@ -110,13 +112,19 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
 	perf_evlist__start_workload(evlist);
 
 retry:
-	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) {
 		if (event->header.type == PERF_RECORD_EXIT)
 			nr_exit++;
 
-		perf_evlist__mmap_consume(evlist, 0);
+		perf_mmap__consume(md, 0);
 	}
+	perf_mmap__read_done(md);
 
+out_init:
 	if (!exited || !nr_exit) {
 		perf_evlist__poll(evlist, -1);
 		goto retry;
-- 
2.4.11