Hi Miklos, Thanks for your response and apologies for my delayed reply. > Why the double sign-off? Some misconfiguration on my side. I will remove the extra line in the next patch version > And this is called for both block and non-block supers. Which means > that the bdi will be unregistered, yet the sb could still be reused > (see fuse_test_super()). Just to confirm my understanding, fuse_test_super needs to have the same check as the super.c test_* function, correct? --Daniil