kernfs_super_ns(9)

🌸 welcome bestie, this is kernfs_super_ns(9) 🌸

Okay so you're holding a page from the Kernel API Manual, and the star of the show is kernfs_super_ns(9). No cap, it's a tiny little function with one job, and it does it slayfully. Let's get into it 💅

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✨ NAME ✨

kernfs_super_ns — bestie, it determines the namespace tag of a kernfs super_block. That's it. That's the whole vibe. 🎀

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🦋 SYNOPSIS 🦋

const struct ns_common * kernfs_super_ns (struct super_block *sb );

Literally the whole signature, character for character. Look at her go ✨

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💖 ARGUMENTS 💖

• sb — the super_block of interest 🫶 like, the one you're curious about. Your main character superblock, if you will.

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👑 RETURN 👑

It returns the namespace tag associated with kernfs super_block sb. So you hand her an sb, she hands you back the namespace tag. Mutual exchange, iconic behavior, no notes. 💅✨

ngl there's no error path listed here, so don't go inventing one — this page is short and sweet and we respect that. 🍓

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🌈 SEE ALSO 🌈

Kernel file ./fs/kernfs/mount.c, plus the whole friend group:

• kernfs_root_from_sb(9)
• kernfs_node_dentry(9)
• kernfs_get_tree(9)
• kernfs_kill_sb(9)

Go read those too, iykyk 🧚

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💜 sign-off 💜

And that's the page, bestie! This little gem lives at ./fs/kernfs, it's dated October 2026, and the page itself is kernfs_super_ns(9). Periodt. 💀🌸🦋