If it was 1972 and not 2022, I'd probably be saying Rust is really groovy-mannnn. Don't read that to say Rust is bad from a technical perspective, those are mostly negatives only in the context of already have existing ecosystems. For application layer stuff having to have yet another run time is PITA. The syntax is not really an improvement, the learning curve for using it well seems to be pretty steep. I have looked at Rust quite a lot and frankly I just don't see what is compelling about it besides the safety elements.
It is however way easier then inventing and instructing people in an entirely new language, and replacing or adding an entirely separate tool chain to mature projects like Linux. I am not going to pretend that last part is easy. Create a C or 'C with Classes' dialect that adds some bounds checked array/vector types with iterators and then sit down and think really hard about what changes need to be made to casting, promotion, and void pointers. The sensible thing to do is not re-invent the wheel here make sure whatever you do is linker compatible with C. If you want a systems language that readable an approachable for beginners we already have it - its 'C' or possibly 'C with Classes' Rust kernel documentation and samples Further reading: Linux 6.0 Arrives With Support For Newer Chips, Core Fixes, and Oddities
Rust crates and bindings for initial minimum viable build Kbuild infrastructure (Rust build rules and support scripts) Kernel internals (kallsyms expansion for Rust symbols, %pA format) The initial support of Rust-for-Linux comes in roughly 4 areas: Kernel, with many more interfaces (and drivers - NVMe, 9p, M1 GPU) on the way. The contents are the absolute minimum to get Rust code building in the Practice once this initial infrastructure series lands. Our plan is for the tree to switch to the standard non-rebasing Miguel is the primary maintainer, with me helping where needed/wanted. It's been updated based on feedback from the Kernel Maintainer's Summit, and to gain recent Reviewed-by: tags. "This Monday, the first set of patches to enable Rust support and tooling was merged for Linux 6.1," writes Slashdot reader sabian2008, sharing an update from longtime kernel developer Kees Cook: The tree has a recent base, but has fundamentally been in linux-next for a year and a half.
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