nfsd4_is_junction(9)

✨ nfsd4_is_junction(9) ✨

okay so bestie, we're in the Kernel API Manual today and this one's a lil function called nfsd4_is_junction — it's short, it's sweet, and it's giving "quick vibe check on a dentry" 💅

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🌸 NAME 🌸

nfsd4_is_junction — Test if an object could be an NFS junction

like, is this thing an NFS junction or not? that's the whole gig 🎀

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🦋 SYNOPSIS 🦋

int nfsd4_is_junction (struct dentry *dentry );

(yes the space before the ) is canon, we don't touch the canon ✨)

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🍓 ARGUMENTS 🍓

• dentry — object to test 💖 literally the thing you're checking, that's it, that's the argument

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👑 DESCRIPTION 👑

So the way this works: it returns 1 if "dentry" appears to contain NFS junction information. Otherwise 0 is returned.

That's it. That's the function. one or zero, slay 🌈 no cap, no in-between, no "maybe" — binary icons only 👑

note the word appears — we're testing if it looks like it could be an NFS junction, not swearing under oath that it is one 🙈 (that's just what the manpage says, bestie, I'm not adding lore)

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💜 SEE ALSO 💜

Kernel file ./fs/nfsd/vfs.c — plus this whole friend group right here, go say hi 🫶

• nfserrno(9)
• nfsd_lookup(9)
• nfsd_setattr(9)
• nfsd_open_verified(9)
• nfsd_splice_read(9)
• nfsd_iter_read(9)
• nfsd_vfs_write(9)
• nfsd_read_splice_ok(9)
• nfsd_read(9)
• nfsd_write(9)
• nfsd_commit(9)
• nfsd_create_setattr(9)
• nfsd_symlink(9)
• nfsd_link(9)
• nfsd_rename(9)
• nfsd_unlink(9)
• nfsd_readdir(9)
• nfsd_filp_close(9)
• nfsd_removexattr(9)
• nfsd_get_case_info(9)

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aaaaand that's the whole page, short king 👑 mwah 💋

sign-off era: this lil baddie lives in ./fs/nfsd, and the version/date stamp says October 2026 — so yeah, future-dated, main character energy fr fr 🧚‍♀️⭐💜