August 30th, 2024

Linux-for-Rust or Rust-for-Linux

The integration of Rust into the Linux kernel faces skepticism over usability, performance, and support issues, while some developers advocate for its potential, citing successful implementations and the need for better compiler support.

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Linux-for-Rust or Rust-for-Linux

The ongoing discussion about integrating Rust into the Linux kernel has sparked mixed reactions among developers. Some express skepticism about Rust's current usability and its potential for success within the kernel environment. Concerns include the lack of full support for Rust in the upcoming RHEL 10 kernel and the challenges of backporting Rust code to older kernels. Developers are also worried about performance issues, particularly regarding inline functions and cross-language calls between Rust and C. Despite these challenges, some contributors argue that Rust has demonstrated its strengths, citing successful implementations like the M1 GPU driver and the Binder driver for Android. The conversation highlights a divide among kernel developers, with some advocating for Rust's adoption while others remain resistant, fearing it may complicate existing workflows. The need for improved compiler support, particularly from GCC, is also emphasized, as it is crucial for reaching all kernel-supported targets. Overall, the integration of Rust into the Linux kernel remains a contentious topic, with ongoing debates about its feasibility and the future direction of the project.

- The integration of Rust into the Linux kernel faces skepticism regarding its usability and performance.

- Concerns exist about Rust's support in RHEL 10 and backporting challenges to older kernels.

- Successful Rust implementations, like the M1 GPU driver, are cited as evidence of its potential.

- The divide among developers reflects differing opinions on adopting Rust versus maintaining existing C workflows.

- Improved compiler support, especially from GCC, is essential for broader Rust adoption in the kernel.

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