tree 1aead735a2ceaadbe5923b4d332e000c2a151930
parent 9c10548c42219e961279826c2763a0e32dc056b9
author Andi Kleen <ak@linux.intel.com> 1561405028 -0700
committer Arnaldo Carvalho de Melo <acme@redhat.com> 1562032241 -0300

perf stat: Make metric event lookup more robust

After setting up metric groups through the event parser, the metricgroup
code looks them up again in the event list.

Make sure we only look up events that haven't been used by some other
metric. The data structures currently cannot handle more than one metric
per event. This avoids problems with multiple events partially
overlapping.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Link: http://lkml.kernel.org/r/20190624193711.35241-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>