[cjbprime]

I think there are some ways that RH would be less desirable for many people than a BigCo. When I was interested in working for them they had offices in inconvenient locations and a requirement that you (or at least, I) work in one of them -- e.g. their "Boston" office is 30 miles away in Westford, and their headquarters are in North Carolina. That's disqualifying for many people.

I imagine they pay significantly less than the other companies (e.g. Facebook) who want to hire Btrfs devs can afford to, too.

[nailer]

Isn't FBs internal distro Fedora based? I wonder if FB has a solid RH-based btrfs production ready kernel floating about.

[bonzini]

The Fedora kernel is based on upstream. The RHEL kernel is a 3.10 fork with key subsystems currently having at least 4.5-ish features.