[tip:perf/core] libperf: Adopt perf_evlist__enable()/disable() functions from perf

[tip-bot for Jiri Olsa <tipbot@xxxxxxxxx>]

Commit-ID:  fcc97c3e7a9d6fd3fda7674f52fb005f4e8453e7
Gitweb:     https://git.kernel.org/tip/fcc97c3e7a9d6fd3fda7674f52fb005f4e8453e7
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Sun, 21 Jul 2019 13:24:56 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 29 Jul 2019 18:34:46 -0300

libperf: Adopt perf_evlist__enable()/disable() functions from perf

Adopt the following functions from tools/perf:

  perf_evlist__enable()
  perf_evlist__disable()

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Michael Petlan <mpetlan@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20190721112506.12306-70-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/lib/evlist.c              | 16 ++++++++++++++++
 tools/perf/lib/include/perf/evlist.h |  2 ++
 tools/perf/lib/libperf.map           |  2 ++
 3 files changed, 20 insertions(+)

diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c
index 5dda96b1d4da..f4dc9a208332 100644
--- a/tools/perf/lib/evlist.c
+++ b/tools/perf/lib/evlist.c
@@ -141,3 +141,19 @@ void perf_evlist__close(struct perf_evlist *evlist)
 	perf_evlist__for_each_entry_reverse(evlist, evsel)
 		perf_evsel__close(evsel);
 }
+
+void perf_evlist__enable(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel;
+
+	perf_evlist__for_each_entry(evlist, evsel)
+		perf_evsel__enable(evsel);
+}
+
+void perf_evlist__disable(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel;
+
+	perf_evlist__for_each_entry(evlist, evsel)
+		perf_evsel__disable(evsel);
+}
diff --git a/tools/perf/lib/include/perf/evlist.h b/tools/perf/lib/include/perf/evlist.h
index 6d3dda743541..38365f8f3fba 100644
--- a/tools/perf/lib/include/perf/evlist.h
+++ b/tools/perf/lib/include/perf/evlist.h
@@ -20,6 +20,8 @@ LIBPERF_API struct perf_evsel* perf_evlist__next(struct perf_evlist *evlist,
 						 struct perf_evsel *evsel);
 LIBPERF_API int perf_evlist__open(struct perf_evlist *evlist);
 LIBPERF_API void perf_evlist__close(struct perf_evlist *evlist);
+LIBPERF_API void perf_evlist__enable(struct perf_evlist *evlist);
+LIBPERF_API void perf_evlist__disable(struct perf_evlist *evlist);
 
 #define perf_evlist__for_each_evsel(evlist, pos)	\
 	for ((pos) = perf_evlist__next((evlist), NULL);	\
diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map
index 4f966ddd5e53..2068e3d52227 100644
--- a/tools/perf/lib/libperf.map
+++ b/tools/perf/lib/libperf.map
@@ -27,6 +27,8 @@ LIBPERF_0.0.1 {
 		perf_evlist__delete;
 		perf_evlist__open;
 		perf_evlist__close;
+		perf_evlist__enable;
+		perf_evlist__disable;
 		perf_evlist__init;
 		perf_evlist__add;
 		perf_evlist__remove;