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    Subject[tip:perf/core] perf test: Switch to new perf_mmap__read_event() interface for 'code reading' test
    Commit-ID:  00fc2460e735fa0f6add802c7426273e7dbc2b27
    Gitweb: https://git.kernel.org/tip/00fc2460e735fa0f6add802c7426273e7dbc2b27
    Author: Kan Liang <kan.liang@linux.intel.com>
    AuthorDate: Thu, 1 Mar 2018 18:09:02 -0500
    Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
    CommitDate: Mon, 5 Mar 2018 10:48:36 -0300

    perf test: Switch to new perf_mmap__read_event() interface for 'code reading' test

    The perf test 'object code reading' still use the legacy interface.

    No functional change.

    Committer notes:

    Testing:

    # perf test reading
    23: Object code reading: 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/1519945751-37786-5-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/code-reading.c | 11 +++++++++--
    1 file changed, 9 insertions(+), 2 deletions(-)

    diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
    index c7115d369511..03ed8c77b1bb 100644
    --- a/tools/perf/tests/code-reading.c
    +++ b/tools/perf/tests/code-reading.c
    @@ -409,15 +409,22 @@ static int process_events(struct machine *machine, struct perf_evlist *evlist,
    struct state *state)
    {
    union perf_event *event;
    + 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) {
    ret = process_event(machine, evlist, event, state);
    - perf_evlist__mmap_consume(evlist, i);
    + perf_mmap__consume(md, false);
    if (ret < 0)
    return ret;
    }
    + perf_mmap__read_done(md);
    }
    return 0;
    }
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