Serious question, what innovations in Linux would FreeBSD even want? I honestly can't think of any.
IMO it's Linux that should want the features from FreeBSD/Solaris. I want ZFS, dtrace, SMF, and jails/zones. Linux is basically at feature parity, but the equivalents have a ton of fragmentation, weird pitfalls, and are overall half baked in comparison.
For example, eBPF is a pretty cool technology. It can do amazing things, but it requires 3rd party tooling and a lot of expertise to be useful. It's not something you can just use on any random box like dtrace to debug a production issue.
IMO it's Linux that should want the features from FreeBSD/Solaris. I want ZFS, dtrace, SMF, and jails/zones. Linux is basically at feature parity, but the equivalents have a ton of fragmentation, weird pitfalls, and are overall half baked in comparison.
For example, eBPF is a pretty cool technology. It can do amazing things, but it requires 3rd party tooling and a lot of expertise to be useful. It's not something you can just use on any random box like dtrace to debug a production issue.