fix: wire up ILM sub-system properly for help (#19836)

cmd/bucket-lifecycle.go

@@ -277,6 +277,10 @@ func (es *expiryState) getWorkerCh(h uint64) chan<- expiryOp {
 }
 
 func (es *expiryState) ResizeWorkers(n int) {
+	if n == 0 {
+		n = 100
+	}
+
 	// Lock to avoid multiple resizes to happen at the same time.
 	es.mu.Lock()
 	defer es.mu.Unlock()
@@ -538,6 +542,10 @@ func (t *transitionState) UpdateWorkers(n int) {
 }
 
 func (t *transitionState) updateWorkers(n int) {
+	if n == 0 {
+		n = 100
+	}
+
 	for t.numWorkers < n {
 		go t.worker(t.objAPI)
 		t.numWorkers++

cmd/config-current.go

@@ -240,6 +240,11 @@ func initHelp() {
 			Description: "manage Browser HTTP specific features, such as Security headers, etc.",
 			Optional:    true,
 		},
+		config.HelpKV{
+			Key:         config.ILMSubSys,
+			Description: "manage ILM settings for expiration and transition workers",
+			Optional:    true,
+		},
 	}
 
 	if globalIsErasure {
@@ -288,6 +293,7 @@ func initHelp() {
 		config.DriveSubSys:          drive.HelpDrive,
 		config.CacheSubSys:          cache.Help,
 		config.BrowserSubSys:        browser.Help,
+		config.ILMSubSys:            ilm.Help,
 	}
 
 	config.RegisterHelpSubSys(helpMap)

internal/config/ilm/help.go

@@ -33,9 +33,9 @@ var (
 		return config.DefaultHelpPostfix(DefaultKVS, key)
 	}
 
-	// HelpILM holds configuration keys and their default values for the ILM
+	// Help holds configuration keys and their default values for the ILM
 	// subsystem
-	HelpILM = config.HelpKVS{
+	Help = config.HelpKVS{
 		config.HelpKV{
 			Key:         transitionWorkers,
 			Type:        "number",