lpt_tgc_end(9)

💅 NAME 💅

okay so this is lpt_tgc_end(9) from the Kernel API Manual, and it does exactly one iconic thing: end trivial garbage collection of LPT LEBs. no cap. 🫶

✨ SYNOPSIS ✨

int lpt_tgc_end (struct ubifs_info *c );

💖 ARGUMENTS 💖

• c — UBIFS file-system description object. that's the context bestie, pls respect her 💅

🎀 DESCRIPTION 🎀

okay so LPT trivial garbage collection is where a LPT LEB contains only dirty and free space and so may be reused as soon as the next commit is completed. literally the “cleanup era” of LEBs, slay ✨

This function is called after the commit is completed (master node has been written, iykyk) and un-maps LPT LEBs that were marked for trivial GC. periodt. 💖

🦋 SEE ALSO 🦋

Kernel file ./fs/ubifs/lpt_commit.c is the home base, and the associated besties are:

• first_dirty_cnode(9)
• next_dirty_cnode(9)
• get_cnodes_to_commit(9)
• upd_ltab(9)
• alloc_lpt_leb(9)
• layout_cnodes(9)
• realloc_lpt_leb(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)
• 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 cutie comes from source/version ./fs/ubifs, dated October 2026. bye bestie, go un-map those LEBs 🌈👑