Re:BCache Gets New Maintainer, NVMe Improvements and More fo...
by rogerbinns on Wednesday November 15, 2017 @12:44PM
(#15705759)
Wrong filesystem. bcache is the one that sits in front of another filesystem, and improves its performance. bcachefs (your link) is from the same author, but is a standalone filesystem.
https://en.wikipedia.org/wiki/Bcache