perf evlist: Set the leader in the perf_evlist__config method

Since we need to ensure the leader is set before configuring the
evsel perf_event_attrs.

Reducing the boilerplate needed by tools, helping, for instance,
'perf trace', that wasn't setting the leader.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-22shm0ptkch2kgl7rtqlligx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0be6605..fc4f080 100644 (file)
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -230,14 +230,7 @@ static int perf_record__open(struct perf_record *rec)
        struct perf_record_opts *opts = &rec->opts;
        int rc = 0;
 
-       /*
-        * Set the evsel leader links before we configure attributes,
-        * since some might depend on this info.
-        */
-       if (opts->group)
-               perf_evlist__set_leader(evlist);
-
-       perf_evlist__config_attrs(evlist, opts);
+       perf_evlist__config(evlist, opts);
 
        list_for_each_entry(pos, &evlist->entries, node) {
                struct perf_event_attr *attr = &pos->attr;

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7932ffa..d222d7f 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -455,7 +455,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
                goto out_delete_evlist;
        }
 
-       perf_evlist__config_attrs(evlist, &trace->opts);
+       perf_evlist__config(evlist, &trace->opts);
 
        signal(SIGCHLD, sig_handler);
        signal(SIGINT, sig_handler);

diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 5902772..6ea66cf 100644 (file)
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -106,7 +106,7 @@ int test__PERF_RECORD(void)
        perf_evsel__set_sample_bit(evsel, CPU);
        perf_evsel__set_sample_bit(evsel, TID);
        perf_evsel__set_sample_bit(evsel, TIME);
-       perf_evlist__config_attrs(evlist, &opts);
+       perf_evlist__config(evlist, &opts);
 
        err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask);
        if (err < 0) {

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 5a0878d..dc8aee9 100644 (file)
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -49,10 +49,16 @@ struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
        return evlist;
 }
 
-void perf_evlist__config_attrs(struct perf_evlist *evlist,
-                              struct perf_record_opts *opts)
+void perf_evlist__config(struct perf_evlist *evlist,
+                       struct perf_record_opts *opts)
 {
        struct perf_evsel *evsel;
+       /*
+        * Set the evsel leader links before we configure attributes,
+        * since some might depend on this info.
+        */
+       if (opts->group)
+               perf_evlist__set_leader(evlist);
 
        if (evlist->cpus->map[0] < 0)
                opts->no_inherit = true;

diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 56003f7..457e235 100644 (file)
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -76,8 +76,8 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
 
 int perf_evlist__open(struct perf_evlist *evlist);
 
-void perf_evlist__config_attrs(struct perf_evlist *evlist,
-                              struct perf_record_opts *opts);
+void perf_evlist__config(struct perf_evlist *evlist,
+                        struct perf_record_opts *opts);
 
 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
                                  struct perf_record_opts *opts,