Re: [PATCH v8 2/2] rust: add dma coherent allocator abstraction.

Christoph Hellwig
2025-01-31T07:57:58Z

On Wed, Jan 29, 2025 at 10:33:22PM +0100, Danilo Krummrich wrote:
> I accept that you don't want to be involved with Rust in the kernel, which is
> why we offered to maintain the Rust abstraction layer for the DMA coherent
> allocator as a separate component (which it would be anyways) ourselves.

Which doesn't help me a bit. Every additional bit that the another
language creeps in drastically reduces the maintainability of the kernel
as an integrated project. The only reason Linux managed to survive so
long is by not having internal boundaries, and adding another language
complely breaks this. You might not like my answer, but I will do
everything I can do to stop this. This is NOT because I hate Rust.
While not my favourite language it's definitively one of the best new
ones and I encourage people to use it for new projects where it fits.
I do not want it anywhere near a huge C code base that I need to
maintain.