Do you often interact with an ext4 file system using the Linux VFS? I'm not sure it helps your "familiarity" argument. It's not just about familiarity either, i

Do you often interact with an ext4 file system using the Linux VFS? I'm not sure it helps your "familiarity" argument. It's not just about familiarity either, it's also interoperability. Tons of 3rd party applications know how to interact with real filesystems using the standard POSIX "open", "stat", "unlink" etc... You can make incremental backups using rsync, you can use a choice of many browsers to explore its contents, you can use logrotate, you can use tail -f to monitor data appended to a file etc... IMO if you can't do this you don't have a filesystem, you have a database with filesystem semantics. Anyway, by now anybody reading this discussion will have made up their mind so let's leave it at that. And good luck with your project nonetheless, semantics aside it's rather impressive.