perf tests: Set evlist of test__backward_ring_buffer() to !overwrite

Setting overwrite in perf_evlist__mmap() is meaningless because the
event in this evlist is already have 'overwrite' postfix and goes to
backward ring buffer automatically. Pass 'false' to perf_evlist__mmap()
to make it similar to others.

Signed-off-by: Wang Nan <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
index 71b9a0b613d2b2fcedee056de59d9ea56ec78516..43a8c6ac4070e3b50868b39d3de0fdd38cbcfa5c 100644 (file)
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -59,7 +59,7 @@ static int do_test(struct perf_evlist *evlist, int mmap_pages,
        int err;
        char sbuf[STRERR_BUFSIZE];
 
-       err = perf_evlist__mmap(evlist, mmap_pages, true);
+       err = perf_evlist__mmap(evlist, mmap_pages, false);
        if (err < 0) {
                pr_debug("perf_evlist__mmap: %s\n",
                         str_error_r(errno, sbuf, sizeof(sbuf)));