libperf: Add perf_evlist__remove() function

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>

diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c
index e5f187f..023fe4b 100644 (file)
--- 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 6992568..e0c8799 100644 (file)
--- 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 06ccf31..168339f 100644 (file)
--- 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 f2b86f4..9b0108c 100644 (file)
--- 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;
 }