libnvme(2)

💖 libnvme(2) — API Manual 💖

okay bestie, listen up, we're doing a whole manual page and it's genuinely not that deep, i promise. this is from the libnvme API manual and it's literally just one little struct, so we're gonna get through this together and then go get boba. 🧋

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✨ NAME ✨

struct nvmf_ext_attr — Extended Attribute (EXAT) 🎀

like. that's it. that's the whole thing. it's a struct and it holds an extended attribute. slay.

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🌸 SYNOPSIS 🌸

struct nvmf_ext_attr {
    __le16 exattype;
    __le16 exatlen;
    __u8 exatval[];
};

look at her. so small. so iconic. three members and a dream. 👑

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🦋 Members 🦋

• exattype — the Extended Attribute Type (that's EXATTYPE for short, iykyk). if you wanna know what values it can actually take, go look at enum nvmf_exattype, bestie, it's all laid out for you there. ✨
• exatlen — the Extended Attribute Length, aka EXATLEN. it does what it says on the tin. 📏
• exatval — the Extended Attribute Value, aka EXATVAL. and here's the important part, no cap: the size you allocate for this array must be a multiple of 4 bytes. the way that 4 is not negotiable. it's giving "vibe check at the malloc call". 💅

⚠️ real talk: that exatval[] is a flexible array member, so the 4-byte-multiple rule is on you when you allocate it. don't come crying to me, come crying to your malloc. 😭

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and that's the whole page, you ate that. we're done here, periodt. 🫶

sign-off time: this little baddie came from the libnvme API Manual, struct nvmf_ext_attr, and it's dated July 2026. mwah. 💖🌈⭐