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    Subject[PATCH 067/107] libperf: Add perf_evlist__remove() function
    Date
    From: Jiri Olsa <jolsa@kernel.org>

    Adding perf_evlist__remove() function to remove a perf_evsel from
    a perf_evlist struct.

    Signed-off-by: Jiri Olsa <jolsa@kernel.org>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: Michael Petlan <mpetlan@redhat.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/20190721112506.12306-41-jolsa@kernel.org
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/lib/evlist.c | 6 ++++++
    tools/perf/lib/include/perf/evlist.h | 2 ++
    tools/perf/lib/libperf.map | 1 +
    tools/perf/util/evlist.c | 2 +-
    4 files changed, 10 insertions(+), 1 deletion(-)

    diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c
    index e5f187fa4e57..023fe4b44131 100644
    --- a/tools/perf/lib/evlist.c
    +++ b/tools/perf/lib/evlist.c
    @@ -14,3 +14,9 @@ void perf_evlist__add(struct perf_evlist *evlist,
    {
    list_add_tail(&evsel->node, &evlist->entries);
    }
    +
    +void perf_evlist__remove(struct perf_evlist *evlist,
    + struct perf_evsel *evsel)
    +{
    + list_del_init(&evsel->node);
    +}
    diff --git a/tools/perf/lib/include/perf/evlist.h b/tools/perf/lib/include/perf/evlist.h
    index 6992568b14a0..e0c87995c6ff 100644
    --- a/tools/perf/lib/include/perf/evlist.h
    +++ b/tools/perf/lib/include/perf/evlist.h
    @@ -10,5 +10,7 @@ struct perf_evsel;
    LIBPERF_API void perf_evlist__init(struct perf_evlist *evlist);
    LIBPERF_API void perf_evlist__add(struct perf_evlist *evlist,
    struct perf_evsel *evsel);
    +LIBPERF_API void perf_evlist__remove(struct perf_evlist *evlist,
    + struct perf_evsel *evsel);

    #endif /* __LIBPERF_EVLIST_H */
    diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map
    index 06ccf31eb24d..168339f89a2e 100644
    --- a/tools/perf/lib/libperf.map
    +++ b/tools/perf/lib/libperf.map
    @@ -12,6 +12,7 @@ LIBPERF_0.0.1 {
    perf_evsel__init;
    perf_evlist__init;
    perf_evlist__add;
    + perf_evlist__remove;
    local:
    *;
    };
    diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
    index f2b86f49ab8d..9b0108c23010 100644
    --- a/tools/perf/util/evlist.c
    +++ b/tools/perf/util/evlist.c
    @@ -194,7 +194,7 @@ void evlist__add(struct evlist *evlist, struct evsel *entry)
    void evlist__remove(struct evlist *evlist, struct evsel *evsel)
    {
    evsel->evlist = NULL;
    - list_del_init(&evsel->core.node);
    + perf_evlist__remove(&evlist->core, &evsel->core);
    evlist->nr_entries -= 1;
    }

    --
    2.21.0
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