diff options
Diffstat (limited to 'tools/lib/perf/evsel.c')
| -rw-r--r-- | tools/lib/perf/evsel.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c index cd203998e875..bd8c2f19ef74 100644 --- a/tools/lib/perf/evsel.c +++ b/tools/lib/perf/evsel.c @@ -267,6 +267,10 @@ int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread, if (FD(evsel, cpu, thread) < 0) return -EINVAL; + if (MMAP(evsel, cpu, thread) && + !perf_mmap__read_self(MMAP(evsel, cpu, thread), count)) + return 0; + if (readn(FD(evsel, cpu, thread), count->values, size) <= 0) return -errno; |