ubifs_write_sb_node(9)

💾 ubifs_write_sb_node — it's giving "write the superblock node" energy ✨

okay so bestie, you're looking at ubifs_write_sb_node, straight out of the Kernel API Manual. It's a tiny little function with one job and honestly? She does it. Let's get into it 🎀

---

✨ SYNOPSIS ✨

int ubifs_write_sb_node (struct ubifs_info *c , struct ubifs_sb_node *sup );

two args, one int, no drama. periodt.

---

🌸 ARGUMENTS 🌸

• c — the UBIFS file-system description object 💖 like, this is the whole vibe of your filesystem in one struct
• sup — the superblock node, and no cap, it has to be one you read with ubifs_read_sb_node first 🫶 (that's the function name, keep it exact, iykyk)

---

🦋 DESCRIPTION 🦋

so here's the whole lore: this function returns 0 on success 🌈 and a negative error code on failure 😭. That's it. That's the description. She's short, she's sweet, she's iconic 👑

ngl bestie, always check that return value. A negative number is the code equivalent of a "we need to talk" text 💀

---

🌟 SEE ALSO 🌟

Kernel file ./fs/ubifs/sb.c — and the whole friend group:

• create_default_filesystem(9)
• validate_sb(9)
• ubifs_read_sb_node(9)
• ubifs_read_superblock(9)
• fixup_leb(9)
• fixup_free_space(9)
• ubifs_fixup_free_space(9)

---

and that's the page, bestie 💅 source is ./fs/ubifs, dated October 2026 — mwah, slay, go write that superblock node 🧚‍♀️💜