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    Subject[tip:perf/core] perf evlist: Add perf_evlist__remove()
    Commit-ID:  4768230ad57d4e4fc6d36c44e98e0062c89b0dc0
    Gitweb: http://git.kernel.org/tip/4768230ad57d4e4fc6d36c44e98e0062c89b0dc0
    Author: Adrian Hunter <adrian.hunter@intel.com>
    AuthorDate: Fri, 25 Sep 2015 16:15:53 +0300
    Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
    CommitDate: Mon, 28 Sep 2015 17:15:31 -0300

    perf evlist: Add perf_evlist__remove()

    Add a counterpart to perf_evlist__add() that does the opposite and
    deletes the evsel.

    This will be used by perf inject to remove unwanted evsels.

    Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Link: http://lkml.kernel.org/r/1443186956-18718-23-git-send-email-adrian.hunter@intel.com
    [ Renamed it from perf_evlist__del() to perf_evlist__remove() and removed the perf_evsel__delete() call ]
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/util/evlist.c | 7 +++++++
    tools/perf/util/evlist.h | 1 +
    2 files changed, 8 insertions(+)

    diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
    index e676038..8954622 100644
    --- a/tools/perf/util/evlist.c
    +++ b/tools/perf/util/evlist.c
    @@ -165,6 +165,13 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
    __perf_evlist__propagate_maps(evlist, entry);
    }

    +void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel)
    +{
    + evsel->evlist = NULL;
    + list_del_init(&evsel->node);
    + evlist->nr_entries -= 1;
    +}
    +
    void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
    struct list_head *list)
    {
    diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
    index 0edf0d4..66bc9d4 100644
    --- a/tools/perf/util/evlist.h
    +++ b/tools/perf/util/evlist.h
    @@ -73,6 +73,7 @@ void perf_evlist__exit(struct perf_evlist *evlist);
    void perf_evlist__delete(struct perf_evlist *evlist);

    void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
    +void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
    int perf_evlist__add_default(struct perf_evlist *evlist);
    int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
    struct perf_event_attr *attrs, size_t nr_attrs);

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