nvme_resv_register(2)

💖 nvme_resv_register — bestie edition 💖

okay so like, hi!! welcome to the nvme_resv_register(2) page, which lives in the libnvme API manual and is genuinely one of the cutest little syscalls you'll ever meet 🎀 no cap.

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✨ NAME ✨

nvme_resv_register — send an nvme reservation register 🦋

like... that's literally her whole job. she sends it. she's the messenger. iconic behavior.

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🌸 SYNOPSIS 🌸

int nvme_resv_register (struct nvme_resv_register_args *args );

periodt. that's the whole vibe. one function, one pointer, zero drama 💅

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🌈 ARGUMENTS 🌈

• args — a struct nvme_resv_register_args argument structure. yes bestie, she takes a struct, she's a little fancy like that 👑

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💜 DESCRIPTION 💜

so here's the tea ☕ — the Reservation Register command does one of three things:

• registers a reservation key
• unregisters a reservation key
• replaces a reservation key

that's it. that's the whole arc. lowkey a main character move for such a small command, honestly 🫶

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⭐ RETURN ⭐

okay so when you call her, one of two things happens:

• you get the nvme command status back if a response was received — go check enum nvme_status_field for what all those bits mean, iykyk 🔥
• or you get -1 with errno set otherwise 😭 that's the "something went sideways" path, no shame in it

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ngl bestie, always check your return value. -1 without reading errno is giving "I didn't actually debug this" energy 💀

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🧚 a lil sign-off 🧚

this page is from July 2026, it's called nvme_resv_register (and yeah, nvme_resv_register(2) when she's being formal, which is always), and it ships with the libnvme API manual. mwah 💋 go register some reservation keys, you absolute legend 👑✨