expfmt: Avoid copying mutex in proto message

Signed-off-by: beorn7 <beorn@grafana.com>
prometheus · May 4, 2023 · 5e8c998 · 5e8c998
1 parent 27a8fa5
commit 5e8c998
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/expfmt/decode.go b/expfmt/decode.go
@@ -132,7 +132,10 @@ func (d *textDecoder) Decode(v *dto.MetricFamily) error {
 	}
 	// Pick off one MetricFamily per Decode until there's nothing left.
 	for key, fam := range d.fams {
-		*v = *fam
+		v.Name = fam.Name
+		v.Help = fam.Help
+		v.Type = fam.Type
+		v.Metric = fam.Metric
 		delete(d.fams, key)
 		return nil
 	}