Fix #230: Signal parent once child takes over

Author: mechanicker

Diff for: main.go

@@ -196,6 +196,9 @@ func main() {
 				kill(os.Getpid(), syscall.SIGUSR1)
 				wg.Wait()
 				defer ctx.Release()
+
+				// Signal parent process since we are taking over
+				_ = kill(os.Getppid(), syscall.SIGUSR1)
 			}
 
 		} else {
@@ -211,15 +214,9 @@ func main() {
 			flags)
 
 		if err != nil {
-			if !flags.Foreground {
-				kill(os.Getppid(), syscall.SIGUSR2)
-			}
 			log.Fatalf("Mounting file system: %v", err)
 			// fatal also terminates itself
 		} else {
-			if !flags.Foreground {
-				kill(os.Getppid(), syscall.SIGUSR1)
-			}
 			log.Println("File system has been successfully mounted.")
 			// Let the user unmount with Ctrl-C
 			// (SIGINT). But if cache is on, catfs will