linux-kernel - [PATCH 04/14] perf test: Apply new perf_mmap__read

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Message-Id: <1519945751-37786-4-git-send-email-kan.liang@linux.intel.com>
Date:   Thu,  1 Mar 2018 18:09:01 -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 04/14] perf test: Apply new perf_mmap__read_event() interface for bpf

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

The perf test 'bpf' still use the legacy interface.

No functional change.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/tests/bpf.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index e8399be..ab4715f 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -176,13 +176,20 @@ static int do_test(struct bpf_object *obj, int (*func)(void),
 
 	for (i = 0; i < evlist->nr_mmaps; i++) {
 		union perf_event *event;
+		struct perf_mmap *md;
+		u64 end, start;
 
-		while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
+		md = &evlist->mmap[i];
+		if (perf_mmap__read_init(md, 0, &start, &end) < 0)
+			continue;
+
+		while ((event = perf_mmap__read_event(md, 0, &start, end)) != NULL) {
 			const u32 type = event->header.type;
 
 			if (type == PERF_RECORD_SAMPLE)
 				count ++;
 		}
+		perf_mmap__read_done(md);
 	}
 
 	if (count != expect) {
-- 
2.4.11