Rust for Linux redux
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On July 4, the Rust for Linux project posted another version of its patch set adding support for the language to the kernel. It would seem that the project feels that it is ready to be considered for merging into the mainline. Perhaps a bigger question lingers, though: is the kernel development community ready for Rust? That part still seems to be up in the air.
Miguel Ojeda, who has been hired to work on the project full-time, posted the patch set; in the cover letter, he listed a number of changes and updates since the RFC patch set was posted back in April. In particular, the allocations that would call panic!() when they failed have been replaced. A modified version of the alloc crate has been created for the kernel project, though the plan is for the changes to work their way into the upstream project so that the customized version can eventually be dropped. Incidentally, the patch adding the modified crate was apparently too large for the lore archive, though it does show up in the LWN archive.
There is more progress on Rust abstractions for kernel facilities, including "red-black trees, reference-counted objects, file descriptor creation, tasks, files, io vectors... ", he said, as well as additions for driver support. Beyond that, the Rust driver for the Android Binder interprocess communication mechanism has more features and there is ongoing work on a driver for the hardware random-number generator available on some Raspberry Pi models.
