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LWN.net | All | [$] The "rnull" Rust block driver |
August 29, 2026 6:40 AM * |
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The null block driver (null_blk) is a small driver that is mostly useful for benchmarking block-layer implementations. It accepts all requests and marks them complete as quickly as possible, doing as little work as possible. In June�2026, Andreas Hindborg shared a patch set implementing the same functionality in Rust, in order to show that a simple block driver is now possible to write using the kernel's Rust APIs and to enable comparisons between the C and Rust implementations. A minimal version of the "rnull" driver is already present in the mainline kernel, but Hindborg's patch set brings it up to feature parity with the C version. https://lwn.net/Articles/1090378/ --- SBBSecho 3.37-Linux * Origin: Palantir * palantirbbs.ddns.net * Pensacola, FL * (618:250/24) |
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