[PATCH 06/27] perf tools: Propagate thread maps through the evlist

[Jiri Olsa <jolsa@kernel.org>]

Propagate evlist's thread_map object through all the
evsel objects.

It'll be handy to access evsel's threads directly
in following patches. The reason is there's no link
from evsel to evlist which hold threads map now and
evlist is not always available.

Link: http://lkml.kernel.org/n/tip-6vc92bytyy2d6c5entm5s698@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/evlist.c | 4 +++-
 tools/perf/util/evsel.c  | 1 +
 tools/perf/util/evsel.h  | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 214affaf1cf6..6cfdee68e763 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1117,7 +1117,9 @@ static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
 		if (!evsel->cpus || target->cpu_list)
 			evsel->cpus = cpu_map__get(evlist->cpus);
 
-		if (!evsel->cpus)
+		evsel->threads = thread_map__get(evlist->threads);
+
+		if (!evsel->cpus || !evsel->threads)
 			return -ENOMEM;
 	}
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 31b0afb68825..1b2f480a3e82 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -886,6 +886,7 @@ void perf_evsel__exit(struct perf_evsel *evsel)
 	perf_evsel__free_id(evsel);
 	close_cgroup(evsel->cgrp);
 	cpu_map__put(evsel->cpus);
+	thread_map__put(evsel->threads);
 	zfree(&evsel->group_name);
 	zfree(&evsel->name);
 	perf_evsel__object.fini(evsel);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index bb0579e8a10a..9e16a5c4eb01 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -82,6 +82,7 @@ struct perf_evsel {
 	struct cgroup_sel	*cgrp;
 	void			*handler;
 	struct cpu_map		*cpus;
+	struct thread_map	*threads;
 	unsigned int		sample_size;
 	int			id_pos;
 	int			is_pos;
-- 
1.9.3

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