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-rw-r--r--tools/perf/util/evsel.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 7389746c0dc4..f894893c203d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -271,12 +271,17 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
271 return evsel; 271 return evsel;
272} 272}
273 273
274static bool perf_event_can_profile_kernel(void)
275{
276 return geteuid() == 0 || perf_event_paranoid() == -1;
277}
278
274struct perf_evsel *perf_evsel__new_cycles(bool precise) 279struct perf_evsel *perf_evsel__new_cycles(bool precise)
275{ 280{
276 struct perf_event_attr attr = { 281 struct perf_event_attr attr = {
277 .type = PERF_TYPE_HARDWARE, 282 .type = PERF_TYPE_HARDWARE,
278 .config = PERF_COUNT_HW_CPU_CYCLES, 283 .config = PERF_COUNT_HW_CPU_CYCLES,
279 .exclude_kernel = geteuid() != 0, 284 .exclude_kernel = !perf_event_can_profile_kernel(),
280 }; 285 };
281 struct perf_evsel *evsel; 286 struct perf_evsel *evsel;
282 287