lpt_check_hash(9)

📦 version 7.3.1, in nixpkgs unstable

💖 lpt_check_hash(9) 💖

okay so real quick before we dive in — this is a page from the Kernel API Manual, and the star of the show is lpt_check_hash, bestie. it's giving "trust but verify" energy and honestly? iconic.

✨ NAME ✨

lpt_check_hash — the function that literally checks the hash of the LPT. no cap, that's the whole vibe check 🫶

🌸 SYNOPSIS 🌸

int lpt_check_hash (struct ubifs_info *c );

she takes exactly one thing and returns an int. clean, simple, main character energy 💅

🎀 ARGUMENTS 🎀

  • c — the UBIFS file-system description object. like, the whole personality of the filesystem gets passed in here 🦋

⭐ DESCRIPTION ⭐

okay so here's what she does: this function calculates a hash over all pnodes in the LPT and then compares it with the hash stored in the master node. that's the entire plot 😭

and the returns?

  • returns 0 on success — slay, everything matches, we love to see it ✨
  • returns a negative error code on failure — and that's your cue to be concerned 💀
ngl, treat that negative return like a red flag. she's telling you something's off fr fr.

🌈 SEE ALSO 🌈

so many friends, so much lore. she does not do this alone — here's the whole group chat, all from the kernel file ./fs/ubifs/lpt.c:

and that's the page, bestie!! 🧚 one last thing — this whole thing lives under ./fs/ubifs, dated October 2026, and she's catalogued as lpt_check_hash(9). mwah, go verify some hashes, ily 💜🍓

📦 where this page comes from