ubifs_remount_ro(9)

💅 ubifs_remount_ro(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little function from the UBIFS squad and it's literally just here to flip your file system into read-only mode. no cap, that's the whole gig 🎀

---

✨ NAME ✨

ubifs_remount_ro — re-mount in read-only mode. that's it, that's the queen 👑

---

🌸 SYNOPSIS 🌸

void ubifs_remount_ro (struct ubifs_info *c );

like, exactly that. void return, one arg, no drama 💅

---

🦋 ARGUMENTS 🦋

• c — the UBIFS file-system description object. yeah she's just the descriptor struct, the little info blob that tells us which file system we're talking about 🫶

---

💖 DESCRIPTION 💖

okay so the vibe here is: we assume VFS has already stopped writing. like, writing is done, wrap it up, go home 🙈

but plot twist — there's possibly a background thread that could still be running a commit. not me worrying about a stray commit at the function party 😭 however!! kthread_stop will wait in that case. so it's fine. it handles it. she's got main character energy and she waits her turn ⭐

lowkey important: this function is built on the assumption that VFS stopped writing. that's the premise, don't forget it bestie 💜

---

🔥 SEE ALSO 🔥

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

• validate_inode(9)
• init_constants_early(9)
• bud_wbuf_callback(9)
• take_gc_lnum(9)
• alloc_wbufs(9)
• free_wbufs(9)
• free_orphans(9)
• free_buds(9)
• check_volume_empty(9)
• ubifs_parse_param(9)
• destroy_journal(9)
• bu_init(9)
• check_free_space(9)
• mount_ubifs(9)
• ubifs_umount(9)
• ubifs_remount_rw(9) — her opposite-direction sister, go say hi 💫
• open_ubi(9)

---

and that's the whole page, bestie 🍓 this lil number lives in ./fs/ubifs and the version is October 2026 — mwah, slay, periodt 🧚💖