perf evlist: Open event on evsel cpus and threads
An evsel may have different cpus and threads than the evlist it is in.
Use it's own cpus and threads, when opening the evsel in 'perf record'.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1440138194-17001-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 8d00039..d51a520 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1181,6 +1181,10 @@
if (evsel->filter == NULL)
continue;
+ /*
+ * filters only work for tracepoint event, which doesn't have cpu limit.
+ * So evlist and evsel should always be same.
+ */
err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
if (err) {
*err_evsel = evsel;