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

weed/shell/command_volume_check_disk.go

@@ -42,10 +42,6 @@ func (c *commandVolumeCheckDisk) Help() string {
 
 func (c *commandVolumeCheckDisk) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
 
-	if err = commandEnv.confirmIsLocked(); err != nil {
-		return
-	}
-
 	fsckCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
 	slowMode := fsckCommand.Bool("slow", false, "slow mode checks all replicas even file counts are the same")
 	verbose := fsckCommand.Bool("v", false, "verbose mode")
@@ -55,6 +51,10 @@ func (c *commandVolumeCheckDisk) Do(args []string, commandEnv *CommandEnv, write
 		return nil
 	}
 
+	if err = commandEnv.confirmIsLocked(); err != nil {
+		return
+	}
+
 	c.env = commandEnv
 
 	// collect topology information