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| author | Adrian Hunter <adrian.hunter@intel.com> | 2019-07-10 11:57:53 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-10 12:12:05 -0300 |
| commit | 19207d86940db9dad5f2e0a270a2490f7da451e3 (patch) | |
| tree | 03c2c6b83397d2a18fcf2627cd1246771ad36ea8 /tools | |
| parent | ed5c0a16feb9f1a4347f109d5e9607f6f38688a0 (diff) | |
| download | linux-19207d86940db9dad5f2e0a270a2490f7da451e3.tar.gz linux-19207d86940db9dad5f2e0a270a2490f7da451e3.tar.bz2 linux-19207d86940db9dad5f2e0a270a2490f7da451e3.zip | |
perf db-export: Export main_thread in db_export__sample()
Export main_thread in db_export__sample() because it makes the code
easier to understand, and prepares db_export__thread() for further
simplification.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190710085810.1650-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/db-export.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c index 14501236c046..63f9edf65eee 100644 --- a/tools/perf/util/db-export.c +++ b/tools/perf/util/db-export.c @@ -71,16 +71,10 @@ int db_export__thread(struct db_export *dbe, struct thread *thread, thread->db_id = ++dbe->thread_last_db_id; if (main_thread) { - if (main_thread != thread) { - err = db_export__thread(dbe, main_thread, machine, - comm, main_thread); + if (main_thread != thread && comm) { + err = db_export__comm_thread(dbe, comm, thread); if (err) return err; - if (comm) { - err = db_export__comm_thread(dbe, comm, thread); - if (err) - return err; - } } main_thread_db_id = main_thread->db_id; } @@ -308,12 +302,24 @@ int db_export__sample(struct db_export *dbe, union perf_event *event, return err; main_thread = thread__main_thread(al->machine, thread); - if (main_thread) + if (main_thread) { comm = machine__thread_exec_comm(al->machine, main_thread); + /* + * A thread has a reference to the main thread, so export the + * main thread first. + */ + err = db_export__thread(dbe, main_thread, al->machine, comm, + main_thread); + if (err) + goto out_put; + } - err = db_export__thread(dbe, thread, al->machine, comm, main_thread); - if (err) - goto out_put; + if (thread != main_thread) { + err = db_export__thread(dbe, thread, al->machine, comm, + main_thread); + if (err) + goto out_put; + } if (comm) { err = db_export__exec_comm(dbe, comm, main_thread); |