ubifs_recover_leb(9)

💅 ubifs_recover_leb(9) 💅

okay so welcome to the Kernel API Manual corner, bestie ✨ today’s main character is ubifs_recover_leb, and she is here to scan and recover a LEB with zero wasted motion 💖

✨ NAME ✨

ubifs_recover_leb — scan and recover a LEB 🎀

🌸 SYNOPSIS 🌸

struct ubifs_scan_leb * ubifs_recover_leb (struct ubifs_info *c , int
       lnum , int offs , void *sbuf , int jhead );

🎀 ARGUMENTS 🎀

• c — the UBIFS file-system description object 👑
• lnum — the LEB number 🔢
• offs — the offset 🎯
• sbuf — a LEB-sized buffer to use 🧺
• jhead — the journal head number this LEB belongs to, or -1 if the LEB does not belong to any journal head 🫶

💖 DESCRIPTION 💖

Bestie, this function does a scan of a LEB, but it’s not a plain little scan — it caters for errors that might have been caused by the unclean unmount from which we are attempting to recover 😭 it’s giving cleanup crew for a messy unmount, fr fr.

On success it returns the scanned information ✨ on failure it returns a negative error code 💀 no cap, that’s the return situation.

🦋 SEE ALSO 🦋

Everything below is chilling in the kernel file ./fs/ubifs/recovery.c — here’s the whole friend group 🌈

• is_empty(9)
• first_non_ff(9)
• get_master_node(9)
• write_rcvrd_mst_node(9)
• ubifs_recover_master_node(9)
• ubifs_write_rcvrd_mst_node(9)
• is_last_write(9)
• clean_buf(9)
• no_more_nodes(9)
• fix_unclean_leb(9)
• drop_last_group(9)
• drop_last_node(9)
• get_cs_sqnum(9)
• ubifs_recover_log_leb(9)
• recover_head(9)
• ubifs_recover_inl_heads(9)
• clean_an_unclean_leb(9)
• ubifs_clean_lebs(9)
• grab_empty_leb(9)
• ubifs_rcvry_gc_commit(9)
• struct size_entry(9)
• add_ino(9)
• find_ino(9)
• remove_ino(9)
• ubifs_destroy_size_tree(9)
• ubifs_recover_size_accum(9)
• fix_size_in_place(9)
• inode_fix_size(9)
• ubifs_recover_size(9)

okay that’s the whole page, bestie 🫶 signed, sealed, and glitter-bombed by ./fs/ubifs, October 2026, for the one and only ubifs_recover_leb(9) 💅