Linus Torvalds Speaks on the the divide between Rust and C Linux developers an the future Linux. Will things like fragmentation among the open source community hurt the Linux Kernel? We’ll listen to the Creator of Linux.
For the full key note, checkout: Keynote: Linus Torvalds in Conversation with Dirk Hohndel
The Register’s summary: Torvalds weighs in on ‘nasty’ Rust vs C for Linux debate
I took notes for the benefit of anyone who doesn’t like their info in video form. My attempt to summarize what Linus says:
He enjoys the arguments, it’s nice that Rust has livened up the discussion. It shows that people care.
It’s more contentious than it should be sometimes with religious overtones reminiscent of vi versus emacs. Some like it, some don’t, and that’s okay.
Too early to see if Rust in the kernel ultimately fails or succeeds, that will take time, but he’s optimistic about it.
The kernel is not normal C. They use tools that enforce rules that are not part of the language, including memory safety infrastructure. This has been incrementally added over a long time, which is what allowed people to do it without the kind of outcry that the Rust efforts produce by trying to change things more quickly.
There aren’t many languages that can deal with system issues, so unless you want to use assembler it’s going to be C, C-like, or Rust. So probably there will be some systems other than Linux that do use Rust.
If you make your own he’s looking forward to seeing it.
Linus Torvalds has made some interesting comments on the Rust vs C debate in the Linux kernel. He enjoys the discussions because it shows that people care about the project, even though things can get a little heated like the classic vi vs emacs arguments. The Rust conversation is still in its early days, and while Linus is optimistic about its future in the kernel, it’s too soon to say whether it will ultimately succeed or fail.
He points out that the Linux kernel isn’t just “normal” C it’s C with additional tools and rules that ensure memory safety and other protections. This incremental approach has allowed for changes without causing the kind of backlash that Rust has faced with its more dramatic changes.
At the end of the day, the kernel has to deal with system-level issues, and unless you’re working in assembly, it’s going to be C, C-like, or Rust. Linus is looking forward to seeing how other systems outside of Linux might adopt Rust for their own needs.
If you’re interested in exploring more of these tech discussions or maybe looking for some related tools, you can download APK for access to various Linux utilities on mobile.