diff --git a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller_debug.go b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller_debug.go
index b4ccfed4093..0b9bc02f927 100644
--- a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller_debug.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller_debug.go
@@ -64,11 +64,9 @@ func (cfgCtlr *configController) dumpPriorityLevels(w http.ResponseWriter, r *ht
 	}
 	tabPrint(tabWriter, rowForHeaders(columnHeaders))
 	endLine(tabWriter)
-	plNames := make([]string, len(cfgCtlr.priorityLevelStates))
-	i := 0
+	plNames := make([]string, 0, len(cfgCtlr.priorityLevelStates))
 	for plName := range cfgCtlr.priorityLevelStates {
-		plNames[i] = plName
-		i++
+		plNames = append(plNames, plName)
 	}
 	sort.Strings(plNames)
 	for i := range plNames {
diff --git a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_filter.go b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_filter.go
index 823e1cf34a2..f93e6a828ee 100644
--- a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_filter.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_filter.go
@@ -181,7 +181,7 @@ func (cfgCtlr *configController) Handle(ctx context.Context, requestDigest Reque
 			metrics.ObserveWaitingDuration(ctx, pl.Name, fs.Name, strconv.FormatBool(req != nil), time.Since(startWaitingTime))
 		}
 		metrics.AddDispatch(ctx, pl.Name, fs.Name)
-		fqs.OnRequestDispatched(ctx, req)
+		fqs.OnRequestDispatched(req)
 		executed = true
 		startExecutionTime := time.Now()
 		defer func() {
diff --git a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/fairqueuing/queueset/queueset.go b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/fairqueuing/queueset/queueset.go
index 8671b509840..71470d1b9db 100644
--- a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/fairqueuing/queueset/queueset.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/fairqueuing/queueset/queueset.go
@@ -1071,7 +1071,7 @@ func (qs *queueSet) Dump(includeRequestDetails bool) debug.QueueSetDump {
 	return d
 }
 
-func OnRequestDispatched(ctx context.Context, r fq.Request) {
+func OnRequestDispatched(r fq.Request) {
 	req, ok := r.(*request)
 	if !ok {
 		return
@@ -1079,7 +1079,7 @@ func OnRequestDispatched(ctx context.Context, r fq.Request) {
 
 	qs := req.qs
 	if qs != nil {
-		qs.lockAndSyncTime(ctx)
+		qs.lock.Lock()
 		defer qs.lock.Unlock()
 		qs.totRequestsDispatched++
 	}