One thing I've noticed is that ext, xfs, btrfs and zfs all explicitly store a length field alongside the filename. There's nothing inherent in the disk layout o

One thing I've noticed is that ext, xfs, btrfs and zfs all explicitly store a length field alongside the filename. There's nothing inherent in the disk layout of these filesystems preventing them from supporting filenames with embedded slash and nul characters - those limitations are imposed by the kernel's VFS implementation. It would be nice to have a special version of open, exec etc. where one could specify a filepath as a length-prefixed array of length-prefixed strings.