From cf7a2c7d35ce0ff0dc00054264e30bf02c8133e8 Mon Sep 17 00:00:00 2001
From: Jan Safranek <jsafrane@redhat.com>
Date: Tue, 5 Nov 2024 13:05:07 +0100
Subject: [PATCH] Add a comment why PVC indexer is used

---
 .../volume/selinuxwarning/selinux_warning_controller.go         | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/controller/volume/selinuxwarning/selinux_warning_controller.go b/pkg/controller/volume/selinuxwarning/selinux_warning_controller.go
index c45e61f3314..b214c7cc72e 100644
--- a/pkg/controller/volume/selinuxwarning/selinux_warning_controller.go
+++ b/pkg/controller/volume/selinuxwarning/selinux_warning_controller.go
@@ -128,6 +128,8 @@ func NewController(
 	c.csiTranslator = csiTranslator
 	c.cmpm = csimigration.NewPluginManager(csiTranslator, utilfeature.DefaultFeatureGate)
 
+	// Index pods by its PVC keys. Then we don't need to iterate all pods every time to find
+	// pods which reference given PVC.
 	err = common.AddPodPVCIndexerIfNotPresent(c.podIndexer)
 	if err != nil {
 		return nil, fmt.Errorf("could not initialize SELinux warning controller: %w", err)