perf test: Switch to new perf_mmap__read_event() interface for bpf
authorKan Liang <kan.liang@linux.intel.com>
Thu, 1 Mar 2018 23:09:01 +0000 (18:09 -0500)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 5 Mar 2018 13:47:54 +0000 (10:47 -0300)
The perf test 'bpf' still use the legacy interface.

No functional change.

Committer notes:

Tested with:

  # perf test bpf
  39: BPF filter                                            :
  39.1: Basic BPF filtering                                 : Ok
  39.2: BPF pinning                                         : Ok
  39.3: BPF prologue generation                             : Ok
  39.4: BPF relocation checker                              : 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/1519945751-37786-4-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/bpf.c

index e8399beca62b32ff963f5e6828df85e2cb7d6100..09c9c9f9e827124aec20f98c15fdaa05f0c1d4e5 100644 (file)
@@ -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, false, &start, &end) < 0)
+                       continue;
+
+               while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
                        const u32 type = event->header.type;
 
                        if (type == PERF_RECORD_SAMPLE)
                                count ++;
                }
+               perf_mmap__read_done(md);
        }
 
        if (count != expect) {