Various Linux kernel components are using the Zstandard (Zstd) compression algorithm, but the Zstd code in the kernel is far behind the upstream. The last time the Zstd code in the kernel was updated was back to Linux 5.16 a year ago, when Zstd was upgraded to 1.4.10. Since the release of Linux 5.16, Zstd maintainer Nick Terrell has been actively updating the Zstd code for the Linux kernel from the upstream, so that the kernel’s Zstd implementation can be updated to be more…

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