diff options
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index c11d89e0ee55..b860f9f1b09e 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1542,8 +1542,13 @@ static s64 perf_session__process_user_event(struct perf_session *session, */ return 0; case PERF_RECORD_HEADER_TRACING_DATA: - /* setup for reading amidst mmap */ - lseek(fd, file_offset, SEEK_SET); + /* + * Setup for reading amidst mmap, but only when we + * are in 'file' mode. The 'pipe' fd is in proper + * place already. + */ + if (!perf_data__is_pipe(session->data)) + lseek(fd, file_offset, SEEK_SET); return tool->tracing_data(session, event); case PERF_RECORD_HEADER_BUILD_ID: return tool->build_id(session, event); |