Aug 27, 2026, 3:34 PM

While not directly applicable to ffs2 in OpenBSD, I'm quite amused by the way the inode got things tacked on over time, in this chapter from "The Design and Implementation of the FreeBSD Operating System 2nd Ed"

A diagram showing fields in an inode, starting with basics like mode, owners, timestamps size, block list and eventually, single, double, and triple indirect block structures, more counter and flags, and then extended attributes at the end. It's like a filesystem inside each file. 🤣

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