Reiser4 Updated For The Linux 4.10 Kernel
Reiser4 for the Linux 4.10.0 kernel is available as of earlier this week, managing to release their updated file-system driver code quite promptly. This port to Linux 4.10 yielded a few changes to the Reiser4 code as they re-based to this Linux kernel with the ->readlink() of inode operations being removed as well as the WRITE_FLUSH_FUA flag being removed.
More details and the source patch for Reiser4 Linux 4.10 is available from the project's SourceForge site.
There remains no recent effort to try to upstream Reiser4 in the mainline Linux kernel with no major vendor backing the file-system, the name of the file-system being controversial due to its convicted murderer author (Hans Reiser), and more emphasis these days being placed on the likes of Btrfs/ZFS and the continued evolution of XFS/EXT4 as well as promising alternatives slowly gaining more power/trust like F2FS and Bcachefs.