perf_config_from_file
return perf_config_from_file(collect_config, config_exclusive_filename, set);
if (perf_config_from_file(collect_config, perf_etc_perfconfig(), set) < 0)
if (perf_config_from_file(collect_config, perf_home_perfconfig(), set) < 0)
perf_config_from_file(collect_config, file, set);