bcachefs is, on technical merit, the most interesting copy-on-write filesystem to arrive on Linux in a decade. It is also, as of Linux 6.18, no longer in the kernel, ejected after a governance dispute between its author and Linus Torvalds and now shipping as a DKMS module like ZFS. This is the story of a filesystem whose engineering and whose politics point in opposite directions, and what that means for anyone deciding whether to run it.
tag: #bcachefs
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