libnvme_ns_compare(9)

📦 version 3.2, in arch rolling

💅 libnvme_ns_compare(9) — bestie's guide to comparing data on a namespace

okay so picture this: it's giving libnvme API manual, it's giving kernel-adjacent glamour, and the star of the show is libnvme_ns_compare. no cap, this is the one that checks whether the data chillin' on your namespace actually matches the buffer you're holding up next to it. vibe check for bytes, basically. 🦋

✨ NAME ✨

libnvme_ns_compare — compare data on a namespace 💖

like, literally, it compares data on a namespace. that's the whole personality. iconic.

🎀 SYNOPSIS 🎀

int libnvme_ns_compare (struct libnvme_ns *n , void *buf , off_t offset
, size_t count );

(it returns an int, bestie — remember that, it matters later 👀)

🌸 ARGUMENTS 🌸

  • n — the namespace instance 🫶 like, the actual namespace you're doing this to. main character energy.
  • buf — the buffer holding the data you wanna compare against 👑 this is your reference fit, your "what it should look like" energy.
  • offset — the LBA offset of n 🌈 so, where in the namespace we're starting. LBA = logical block address, iykyk.
  • count — number of sectors in buf ⭐ how many sectors' worth of data you're bringing to the comparison. no more, no less.

🔥 RETURN 🔥

Number of sectors compared ✨ that's it, that's the return value. count the sectors, that's your answer, periodt.

💀 tiny reminder before you go: arguments are positional, so keep n, buf, offset, count in that exact order or the whole thing gets awkward. fr fr.

🎀 and that's the whole page, bestie 🎀 this lil' legend comes to you from the libnvme API manual, dated October 2026, and it answers to the name libnvme_ns_compare(9) — slay, go compare some sectors 💅💜

📦 where this page comes from