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    Subject[PATCH 18/28] perf test: Switch to new perf_mmap__read_event() interface for bpf
    Date
    From: Kan Liang <kan.liang@linux.intel.com>

    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 | 9 ++++++++-
    1 file changed, 8 insertions(+), 1 deletion(-)

    diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
    index e8399beca62b..09c9c9f9e827 100644
    --- a/tools/perf/tests/bpf.c
    +++ b/tools/perf/tests/bpf.c
    @@ -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) {
    --
    2.14.3
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