So ReiserFS is maybe being retired from the Linux Kernel (discussion https://lore.kernel.org/lkml/YhIwUEpy...@casper.infradead.org/
). I think it makes sense to have an informational GSD here as anyone depending on it is going to have a bad time if they get caught by surprise (and I suspect by definition anyone still using ReiserFS is not paying attention to new filesystems).
Conveniently enough SUSE has already done (in my opinion) the best solution here, for many years (SLES 15 is out):
Important: Support of ReiserFS in SUSE Linux Enterprise Server 12
Existing ReiserFS partitions are supported for the lifetime of SUSE Linux Enterprise Server 12 specifically for migration purposes. Support for creating new ReiserFS file systems has been removed starting with SUSE Linux Enterprise Server 12.
However, if I had to bet money I'd say there is at least one distro somewhere still shipping/using it, having an informational GSD talk about 1) that support is ending and 2) the subsequent risks (y2038 isn't that far away...) and 3) suggestions on solutions (ext4/xfs/btrfs) would be a helpful entry I feel. Thoughts/comments?