Not on Linux. There weren't any serious attempts to port it as far as I know.
It's a bit of a shame that filesystems are so OS-specific.
It's kinda a shame that there isn't at least some FUSE layer to let you run a filesystem driver from windows/mac/bsd/whatever on linux.
FWIW FUSE kind of is that layer; a filesystem targeting FUSE should at least be trivially portable across the FOSS unix-likes.
I really wish HAMMER2 had more traction. It's BSD licensing means it has the potential to be supported on Linux, Windows, macOS, etc. (in addition to other BSDs.)