One programmer, Ricardo Correia, has what could be an answer, however. A technology called Filesystem in Userspace (FUSE), introduced in the 2.6.14 kernel released in October 2005, enables Linux to use filesystems that run as ordinary processes. FUSE already hosts an implementation of the NTFS filesystem, NTFS-3g, that runs with decent performance.

In a project originally funded under Google's 2006 Summer of Code program, Correia has converted the ZFS implementation from OpenSolaris into a server or daemon program that runs on Linux.