ubifs_calc_lpt_geom(9)

✨ ubifs_calc_lpt_geom(9): the Kernel API Manual glow-up ✨

okay so bestie, welcome to the Kernel API Manual entry for ubifs_calc_lpt_geom(9) — yes that's the section-9 suffix, she's kernel-internal, we don't gatekeep 💅

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🎀 NAME 🎀

ubifs_calc_lpt_geom — literally here to calculate and check the sizes for the LPT area. that's the whole gig. no cap. ✨

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🦋 SYNOPSIS 🦋

int ubifs_calc_lpt_geom (struct ubifs_info *c );

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🌸 ARGUMENTS 🌸

• c — the UBIFS file-system description object. she's the main character of this whole function, ngl 🫶

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💜 DESCRIPTION 💜

okay so the actual tea: this function returns 0 on success, and a negative error code on failure. that's it, that's the vibe check. lowkey iconic in how simple she is 😭

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⭐ SEE ALSO ⭐

bestie. buckle up. the entire LPT friend group is tagged in this one — every single one of these, fr fr, from the kernel file ./fs/ubifs/lpt.c:

• do_calc_lpt_geom(9)
• calc_dflt_lpt_geom(9)
• pack_bits(9)
• ubifs_unpack_bits(9)
• ubifs_pack_pnode(9)
• ubifs_pack_nnode(9)
• ubifs_pack_ltab(9)
• ubifs_pack_lsave(9)
• ubifs_add_lpt_dirt(9)
• set_ltab(9)
• ubifs_add_nnode_dirt(9)
• add_pnode_dirt(9)
• calc_nnode_num(9)
• calc_nnode_num_from_parent(9)
• calc_pnode_num_from_parent(9)
• ubifs_create_dflt_lpt(9)
• update_cats(9)
• replace_cats(9)
• check_lpt_crc(9)
• check_lpt_type(9)
• unpack_pnode(9)
• ubifs_unpack_nnode(9)
• unpack_ltab(9)
• unpack_lsave(9)
• validate_nnode(9)
• validate_pnode(9)
• set_pnode_lnum(9)
• ubifs_read_nnode(9)
• read_pnode(9)
• read_ltab(9)
• read_lsave(9)
• ubifs_get_nnode(9)
• ubifs_get_pnode(9)
• ubifs_pnode_lookup(9)
• ubifs_lpt_lookup(9)
• dirty_cow_nnode(9)
• dirty_cow_pnode(9)
• ubifs_lpt_lookup_dirty(9)
• ubifs_lpt_calc_hash(9)
• lpt_check_hash(9)
• lpt_init_rd(9)
• lpt_init_wr(9)
• ubifs_lpt_init(9)
• struct lpt_scan_node(9)
• scan_get_nnode(9)
• scan_get_pnode(9)
• ubifs_lpt_scan_nolock(9)
• dbg_chk_pnode(9)
• dbg_check_lpt_nodes(9)

like I said. the whole group chat 💀💖

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ngl if you got here from a backtrace, good luck bestie, you got this 🫶

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and that's the page!! sourced straight from ./fs/ubifs, dated October 2026, and filed under ubifs_calc_lpt_geom(9) — slay, go read the LPT code, mwah 🎀✨💜