vfsuid_into_kuid(9)

✨ vfsuid_into_kuid 💅

okay bestie, welcome to the Kernel API Manual ✨ this is the page for vfsuid_into_kuid and it's honestly a little icon of a function — short, sweet, and it does exactly one thing. no cap.

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🎀 NAME 🎀

vfsuid_into_kuid — convert vfsuid into kuid 🌸

like, it takes your vfsuid and turns it into a kuid. that's the whole vibe check. and it passes. 💖

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🦋 SYNOPSIS 🦋

kuid_t vfsuid_into_kuid (vfsuid_t vfsuid );

copy that signature exactly, bestie — every type, every space, every semicolon. the compiler is watching 👀

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🌈 ARGUMENTS 🌈

• vfsuid — the vfsuid you want to convert 🫶 like, the whole reason you're here.

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💜 DESCRIPTION 💜

This can be used when a vfsuid is committed as a kuid.

that's it. that's the description. no lore, no side quests, no drama. you've got a vfsuid and it's getting committed as a kuid, so this is literally the function for that exact moment 💫

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⭐ RETURN ⭐

a kuid with the value of vfsuid 💅

so the return value is a kuid and it holds the value of the vfsuid you handed in. cute, consistent, no surprises.

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🔥 SEE ALSO 🔥

Kernel file ./include/linux/mnt_idmapping.h — and the whole friend group in that file:

• vfsuid_eq_kuid(9)
• vfsgid_eq_kgid(9)
• vfsuid_has_fsmapping(9)
• vfsgid_has_fsmapping(9)
• vfsgid_into_kgid(9)
• mapped_fsuid(9)
• mapped_fsgid(9)

go read them too, they're all slaying in their own little way 👑

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and that's the page, bestie 🧚 source lives at ./include/linux, dated October 2026 — mwah, take care, drink water, and go convert some ids 💖✨