"Red Hat engineers work actively to develop these features in the
upstream kernel, work both with the Fedora community and others to
integrate them for early adopters and then evaluate when they are robust
enough for enterprise users."
"*//*File systems are very long lived in the field since users tend to
maintain them for years and years. In many cases, enterprise users have
external storage so the storage will survive several generations of
servers. That means that ext4 is not going anywhere any time soon! That
said, Red Hat is an active contributor to the btrfs project and we are
actively working on getting some of the key inhibitors for wide btrfs
deployment finished with the upstream community"