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perf evsel: Rearrange perf_evsel__config_leader_sampling() 

In preparation for adding support for leader sampling with AUX area events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200401101613.6201-15-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2020-04-01 13:16:11 +03:00 committed by Arnaldo Carvalho de Melo
parent 5f34278867
commit 3713eb371c
1 changed files with 13 additions and 13 deletions
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26
tools/perf/util/record.c
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@ -172,24 +172,24 @@ static void perf_evsel__config_leader_sampling(struct evsel *evsel)
struct perf_event_attr *attr = &evsel->core.attr;
struct evsel *leader = evsel->leader;
if (leader == evsel || !leader->sample_read)
return;
/*
* Disable sampling for all group members other
* than leader in case leader 'leads' the sampling.
*/
if (leader != evsel && leader->sample_read) {
attr->freq = 0;
attr->sample_freq = 0;
attr->sample_period = 0;
attr->write_backward = 0;
attr->freq = 0;
attr->sample_freq = 0;
attr->sample_period = 0;
attr->write_backward = 0;
/*
* We don't get sample for slave events, we make them
* when delivering group leader sample. Set the slave
* event to follow the master sample_type to ease up
* report.
*/
attr->sample_type = leader->core.attr.sample_type;
}
/*
* We don't get a sample for slave events, we make them when delivering
* the group leader sample. Set the slave event to follow the master
* sample_type to ease up reporting.
*/
attr->sample_type = leader->core.attr.sample_type;
}
void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,