late_analysis(9)

📦 version 7.3.1, in nixpkgs unstable

💖 late_analysis — the PEB vibe check 💖

okay so real talk, bestie: this is a page from the Kernel API Manual, section 9 (that's the kernel-API girlies, not the "type man 1 ls" girlies 💅). And the star of the show is late_analysis. Let's get into it ✨

✨ NAME ✨

late_analysis — analyze the overall situation with PEB. yes that's literally it, she looks at the whole PEB situation and gives you a verdict 🫶

✨ SYNOPSIS ✨

int late_analysis (struct ubi_device *ubi , struct ubi_attach_info *ai );

🎀 ARGUMENTS 🎀

  • ubi — the UBI device description object. it's giving "this is the device we're talking about" 👑
  • ai — the attaching information. the whole info dump, the receipts, the lore 🌸

🦋 DESCRIPTION 🦋

so this one is a helper function 🧚 and what she does is take a look at what PEBs we actually have, after we've already gone and gathered information about all of them (like, ai is complete at this point, no cap).

then she decides, bestie. two possible situations:

  • is the flash empty and therefore should be formatted? 🧼
  • or are there too many corrupted PEBs and we should not attach this MTD device? 💀
and here's the part you cannot skip: she returns zero if we should proceed with attaching the MTD device, and -EINVAL if we should not. that's the whole vibe check, that's the answer, periodt ✨

🌈 SEE ALSO 🌈

these are all her friends, the whole group chat, and also the kernel file that started it all:

Kernel file ./drivers/mtd/ubi/attach.c:

ngl reading all of those is a lot, but you got this fr fr 🫶

and that's the page, bestie 🎀 she lives in ./drivers/mtd/ubi, this version is dated October 2026, and she's filed under late_analysis(9) — go off, icon 💜

📦 where this page comes from