The uncharitable take is that it's just job protection. That is current maintainer doesn't want to be replaced with some new Rust-writing folks. A more charita

The uncharitable take is that it's just job protection. That is current maintainer doesn't want to be replaced with some new Rust-writing folks. A more charitable take is that the current maintainer is worried not about extra work now, but later when more things use Rust. For example, say the Rust changes were merged and maintained by RfL folks. Then say NVIDIA replaces their current GPU drivers with a new Rust-based drivers. Later a change to the DMA layer kernel code breaks the Rust code in a way that's not trivially fixable, and with that no NVIDIA GPU drivers. Would the DMA changes still be allowed to be merged without any additional work by the current DMA layer maintainer? This seems like something that could happen down the line, if the RfL project continues.