[PATCH 26/28] perf test: Switch to new perf_mmap__read_event() interface for switch-tracking

Arnaldo Carvalho de Melo
2018-03-05T14:31:30Z

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

The perf test 'switch-tracking' still use the legacy interface.

No functional change.

Committer testing:

# perf test switch
32: Track with sched_switch : Ok
#

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1519945751-37786-12-git-send-email-kan.liang@linux.intel.com
[ Changed bool parameters from 0 to 'false', as per Jiri comment ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/switch-tracking.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 33e00295a972..10c4dcdc2324 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -258,16 +258,23 @@ static int process_events(struct perf_evlist *evlist,
unsigned pos, cnt = 0;
LIST_HEAD(events);
struct event_node *events_array, *node;
+ struct perf_mmap *md;
+ u64 end, start;
int i, ret;

for (i = 0; i < evlist->nr_mmaps; i++) {
- while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
+ md = &evlist->mmap[i];
+ if (perf_mmap__read_init(md, false, &start, &end) < 0)
+ continue;
+
+ while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
cnt += 1;
ret = add_event(evlist, &events, event);
- perf_evlist__mmap_consume(evlist, i);
+ perf_mmap__consume(md, false);
if (ret < 0)
goto out_free_nodes;
}
+ perf_mmap__read_done(md);
}

events_array = calloc(cnt, sizeof(struct event_node));
--
2.14.3