This made me quite curious, is there a list somewhere of what bad APIs have been removed/improved and/or technical debt that's been addressed? Or if not a list, some notable examples?
I don't know that there's a list, but cases come to mind because they've been controversial.
(Not a Linux hacker, so apologies if I get this wrong)
The filesystem APIs were quite arcane, and in particular whether or not you were allowed to call a C function at a certain point wasn't documented, and relied on experience to know already.
In trying to write idiomatic Rust bindings, the Rust for Linux group asked the filesystems maintainer if they could document these requirements, so that the Rust bindings could enforce as much of them as they could.
