[PATCH V3 06/12] perf test: update mmap read functions for backward-ring-buffer test

[kan . liang]

From: Kan Liang <kan.li...@intel.com>

Use the new perf_mmap__read_* interfaces for overwrite ringbuffer test.

Signed-off-by: Kan Liang <kan.li...@intel.com>
---
 tools/perf/tests/backward-ring-buffer.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/backward-ring-buffer.c 
b/tools/perf/tests/backward-ring-buffer.c
index 4035d43..e0b1b41 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -31,10 +31,12 @@ static int count_samples(struct perf_evlist *evlist, int 
*sample_count,
        int i;
 
        for (i = 0; i < evlist->nr_mmaps; i++) {
+               struct perf_mmap *map = &evlist->overwrite_mmap[i];
                union perf_event *event;
+               u64 start, end;
 
-               perf_mmap__read_catchup(&evlist->overwrite_mmap[i]);
-               while ((event = 
perf_mmap__read_backward(&evlist->overwrite_mmap[i])) != NULL) {
+               perf_mmap__read_init(map, true, &start, &end);
+               while ((event = perf_mmap__read_event(map, true, &start, end)) 
!= NULL) {
                        const u32 type = event->header.type;
 
                        switch (type) {
@@ -49,6 +51,7 @@ static int count_samples(struct perf_evlist *evlist, int 
*sample_count,
                                return TEST_FAIL;
                        }
                }
+               perf_mmap__read_done(map);
        }
        return TEST_OK;
 }
-- 
2.5.5