VFS(9)

💅 VFS(9) — kernel interface to file systems

okay bestie, so this is VFS(9), from the Kernel Developer's Manual (section 9, kernel devs only, very exclusive, very ✨main character✨). Let's get into it 🦋

✨ NAME ✨

VFS — the kernel interface to file systems 💖

like, this is the doorway between the kernel and literally every file system that wants to hang out with it. no cap.

🌸 DESCRIPTION 🌸

These are the calls you use to set or query file systems — for settings, for information, whatever you need. it's giving "kernel's customer service desk" 🎀

big important note incoming 💀

If a file system doesn't implement a VFS operation, do NOT just write an empty function, and do NOT cast to eopnotsupp. nope nope nope 🙈

Instead, use the appropriate vfs_std function from:

src/sys/kern/vfs_default.c

that's the move. that's the vibe. the way that file has all the defaults ready for you is honestly so iconic 👑

🌈 SEE ALSO 🌈

go read these next, bestie, they're all connected and they all ate 💅

• VFS_CHECKEXP(9)
• VFS_FHTOVP(9)
• VFS_INIT(9)
• VFS_MOUNT(9)
• VFS_QUOTACTL(9)
• VFS_SET(9)
• VFS_STATFS(9)
• VFS_SYNC(9)
• VFS_UNMOUNT(9)
• VFS_VGET(9)
• vnode(9)
• VOP_VPTOFH(9)

👑 AUTHORS 👑

This manual page was written by Doug Rabson. king behaviour, fr fr 🫶

and that's the whole page!! 💖✨ this one came from the Debian edition, dated February 9, 2010 — so yes it's vintage, and yes it still slays 🎀 bye bestie, go mount something responsibly 🌸🦋