realloc_lpt_leb(9)

bestie, welcome to realloc_lpt_leb(9) — it’s from the Kernel API Manual, and it’s lowkey giving “tiny helper that reallocates LPT LEBs.” 💅✨

🎀 NAME 🎀

realloc_lpt_leb — allocate an LPT LEB that is empty. 🫶

✨ SYNOPSIS ✨

int realloc_lpt_leb (struct ubifs_info *c , int *lnum );

🫶 ARGUMENTS 🫶

• c — UBIFS file-system description object 🌸
• lnum — LEB number is passed and returned here 🎀

💅 DESCRIPTION 💅

okay so real talk: this function duplicates exactly the results of the function alloc_lpt_leb. It’s used during end commit to reallocate the same LEB numbers that were allocated by alloc_lpt_leb during start commit. fr fr, that’s the whole vibe. 💖

This function finds the next LEB that was allocated by the alloc_lpt_leb function starting from lnum. If a LEB is found, it is returned in lnum and the function returns 0. Otherwise the function returns -ENOSPC. 😭

note however, that LPT is designed never to run out of space. so that -ENOSPC is like the emergency exit nobody should need — iconic in theory, hopefully not in practice. 💀

🌈 SEE ALSO 🌈

Kernel file ./fs/ubifs/lpt_commit.c — these related besties live there too:

• first_dirty_cnode(9)
• next_dirty_cnode(9)
• get_cnodes_to_commit(9)
• upd_ltab(9)
• alloc_lpt_leb(9)
• layout_cnodes(9)
• write_cnodes(9)
• next_pnode_to_dirty(9)
• add_pnode_dirt(9)
• do_make_pnode_dirty(9)
• make_tree_dirty(9)
• need_write_all(9)
• lpt_tgc_start(9)
• lpt_tgc_end(9)
• populate_lsave(9)
• nnode_lookup(9)
• make_nnode_dirty(9)
• make_pnode_dirty(9)
• make_ltab_dirty(9)
• make_lsave_dirty(9)
• make_node_dirty(9)
• get_lpt_node_len(9)
• get_pad_len(9)
• get_lpt_node_type(9)
• is_a_node(9)
• lpt_gc_lnum(9)
• lpt_gc(9)
• ubifs_lpt_start_commit(9)
• free_obsolete_cnodes(9)
• ubifs_lpt_end_commit(9)
• ubifs_lpt_post_commit(9)
• first_nnode(9)
• next_nnode(9)
• ubifs_lpt_free(9)
• dbg_is_all_ff(9)
• dbg_is_nnode_dirty(9)
• dbg_is_pnode_dirty(9)
• dbg_is_ltab_dirty(9)
• dbg_is_lsave_dirty(9)
• dbg_is_node_dirty(9)
• dbg_check_ltab_lnum(9)
• dbg_check_ltab(9)
• dbg_chk_lpt_free_spc(9)
• dbg_chk_lpt_sz(9)
• dump_lpt_leb(9)
• ubifs_dump_lpt_lebs(9)
• dbg_populate_lsave(9)

mwah 💋 this page is brought to you by source/version ./fs/ubifs, dated October 2026. periodt. 🦋👑