shell: do not need to lock to see volume -h

weed/shell/command_volume_tier_move.go

@@ -46,10 +46,6 @@ func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer
 	c.activeServers = make(map[pb.ServerAddress]struct{})
 	c.activeServersCond = sync.NewCond(new(sync.Mutex))
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
-		return
-	}
-
 	tierCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
 	collectionPattern := tierCommand.String("collectionPattern", "", "match with wildcard characters '*' and '?'")
 	fullPercentage := tierCommand.Float64("fullPercent", 95, "the volume reaches the percentage of max volume size")
@@ -61,6 +57,10 @@ func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer
 		return nil
 	}
 
+	if err = commandEnv.confirmIsLocked(); err != nil {
+		return
+	}
+
 	fromDiskType := types.ToDiskType(*source)
 	toDiskType := types.ToDiskType(*target)