Bcachefs may be headed out of the kernel

I've been following this for a while now.

Kent is in the wrong. Having a lead position in development I would kick Kent of the team.

One thing is to challenge things. What Kent is doing is something completely different. It is obvious he introduced a feature, not only a Bugfix.

If the rules are set in a way that rc1+ gets only Bugfixes, then this is absolutely clear what happens with the feature. Tolerating this once or twice is ok, but Kent is doing this all the time, testing Linus.

Linus is absolutely in the right to kick this out and it's Kent's fault if he does so.

> Having a lead position in development I would kick Kent of the team.

I've seen this sentiment a lot lately. That disagreeable top performers have to be disposed of because they are "toxic" or "problematic".

You aren't doing your job as a leader if this is your attitude to good engineers. Engineering is a field where a small amount of the people create a large amount of the value. You can either understand that, and take it upon yourself to integrate disagreeable yet high performing people into the team, paving over the rough patches yourself. Or you can oust them, and quite literally take a >50% productivity hit on your team.

A disagreeable person will take up more of your time as a manager, but a high performer is worth significantly more of your time. When these traits co-occur in the same person, the cost-benefit is complicated. The reason we talk about this problem a lot in tech is because it is legitimately a tough call, with errors in both directions. Wishing that the right move was always as simple as kicking someone off the team doesn't make it true, although it may relieve you from having to contend with the decision.

> Or you can oust them, and quite literally take a >50% productivity hit on your team.

In a short term, possibly. But do you think bcachefs is better in the current situation than if it moved at half the speed, but without conflict? By being out of kernel it will get less testing, fewer contributions, the main developer will get some time wasted on rebasing the patch set with every release, and distros are unlikely to expose bcachefs to the user any time soon. When you're working with an ecosystem / teams, single person's performance really doesn't mean that much in the end. And occasionally Kent will still have to upstream some changes to interfaces - how likely is anyone to review/merge them quickly?

And now, what are the chances this will ever become more than a single person project really?

It would be worse for bcachefs and the kernel if they parted ways. The Linux kernel does not have a feature complete alternative to APFS. Apple, of all companies, is beating the Linux kernel at filesystems. That hasn't happened before.

> When you're working with an ecosystem / teams, single person's performance really doesn't mean that much in the end.

This is demonstrably not true. Kent brought Bcachefs to fruition and got it upstreamed. Wireguard was also one guy. The cryptography used in both, also 1 guy. There's an argument to be made that given an elegant, well designed system, we should assume it came from a single or a few minds. But given a system that's been around for a while, you would be right to assume that a lot of people were/are involved in keeping it around.