perf tools: Allow system-wide events to keep their own CPUs

Currently, user_requested_cpus supplants system-wide CPUs when the evlist
has_user_cpus. Change that so that system-wide events retain their own
CPUs and they are added to all_cpus.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-15-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c
index 1c801f8da44f85dd632a1451593f5ea88e9437e7..9a6801b53274d1751c9c639eb15e20cf7b6c30ce 100644 (file)
--- a/tools/lib/perf/evlist.c
+++ b/tools/lib/perf/evlist.c
@@ -40,12 +40,11 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
         * We already have cpus for evsel (via PMU sysfs) so
         * keep it, if there's no target cpu list defined.
         */
-       if (!evsel->own_cpus || evlist->has_user_cpus) {
-               perf_cpu_map__put(evsel->cpus);
-               evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
-       } else if (!evsel->system_wide &&
-                  !evsel->requires_cpu &&
-                  perf_cpu_map__empty(evlist->user_requested_cpus)) {
+       if (!evsel->own_cpus ||
+           (!evsel->system_wide && evlist->has_user_cpus) ||
+           (!evsel->system_wide &&
+            !evsel->requires_cpu &&
+            perf_cpu_map__empty(evlist->user_requested_cpus))) {
                perf_cpu_map__put(evsel->cpus);
                evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
        } else if (evsel->cpus != evsel->own_cpus) {