[pdimitar]

This just cements my conviction that file systems not having transactional operations is a huge omission nowadays. It really is time to start having file systems that are not just huge mutable spaces, and be more like proper ACID databases.

I hope somebody is working on it because as things are going in the last years, I'd be retired before I have the time for it.

[tinus_hn]

How does that solve the problem of links pointing places where you don’t expect them to, or any of the other issues in this article?

The problem here is trying to cross a security boundary where your only tool is shell scripting. That’s just basically impossible to do securely.

Use a real programming language, follow the rules required to make it secure and do all the checks you need to.

[pdimitar]

It would solve it by disallowing changing of the underlying path from a symlink to a file (and vice versa) while a transaction to do a `chown` is still underway.

Though that would require much more than just ACID semantics but also proper user / jail isolation.