linux-kernel - [PATCH 08/10] perf python: apply new mmap

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Date:   Tue, 10 Oct 2017 10:20:21 -0700
From:   kan.liang@...el.com
To:     acme@...nel.org, peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Cc:     jolsa@...nel.org, wangnan0@...wei.com, hekuang@...wei.com,
        namhyung@...nel.org, alexander.shishkin@...ux.intel.com,
        adrian.hunter@...el.com, ak@...ux.intel.com,
        Kan Liang <kan.liang@...el.com>
Subject: [PATCH 08/10] perf python: apply new mmap_read interfaces

From: Kan Liang <kan.liang@...el.com>

no functional change

Signed-off-by: Kan Liang <kan.liang@...el.com>
---
 tools/perf/util/python.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index c129e99..cfbaa86 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -948,6 +948,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 {
 	struct perf_evlist *evlist = &pevlist->evlist;
 	union perf_event *event;
+	struct perf_mmap_read read;
 	int sample_id_all = 1, cpu;
 	static char *kwlist[] = { "cpu", "sample_id_all", NULL };
 	int err;
@@ -956,7 +957,11 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 					 &cpu, &sample_id_all))
 		return NULL;
 
-	event = perf_evlist__mmap_read(evlist, cpu);
+	if (perf_evlist__mmap_read_init(evlist, cpu, &read, false))
+		return PyErr_Format(PyExc_OSError,
+				    "Can't get mmap information\n");
+
+	event = perf_mmap__read_event(&read);
 	if (event != NULL) {
 		PyObject *pyevent = pyrf_event__new(event);
 		struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
@@ -975,7 +980,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
 
 		/* Consume the even only after we parsed it out. */
 		perf_evlist__mmap_consume(evlist, cpu);
-
+		perf_mmap__read_done(&read);
 		if (err)
 			return PyErr_Format(PyExc_OSError,
 					    "perf: can't parse sample, err=%d", err);
-- 
2.5.5