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Explore the transition of Linux kernel swapping infrastructure from C to Rust in this 33-minute conference talk from the Linux Plumbers Conference. Learn about the historical context behind this initiative, which began as an effort to address zsmalloc inefficiency for large pages (16K+) and evolved into a broader project to rewrite critical swapping subsystem components. Discover how implementing Rust in one of the most crucial Linux kernel subsystems can improve memory safety while reducing code footprint. Examine specific parts of the swapping subsystem and related drivers like zram that benefit from Rust reimplementation, understand the technical rationale behind these decisions, and gain insights into the practical challenges and advantages of introducing Rust as a second high-level language in Linux kernel development.
