ubifs_change_lp(9)

Okay bestie, welcome to the manual page for ubifs_change_lp(9) from the Kernel API Manual 💅✨ This is literally all about changing LEB properties, and it's giving main character energy fr fr.

✨ NAME ✨

ubifs_change_lp — the function that changes LEB properties, no cap 💁‍♀️

🌸 SYNOPSIS 🌸

const struct ubifs_lprops * ubifs_change_lp (struct ubifs_info *c ,
const struct ubifs_lprops *lp , int free , int dirty , int flags , int
idx_gc_cnt );

🎀 ARGUMENTS 🎀

• c — the UBIFS file-system description object, aka the whole vibe of your file system 👑
• lp — LEB properties to change, like the actual thing we're messing with 🎀
• free — new free space amount, lowkey important
• dirty — new dirty space amount, ngl this one's giving messy 💀
• flags — new flags, you know the drill
• idx_gc_cnt — change to the count of idx_gc list, which is a whole thing

💖 DESCRIPTION 💖

So here's the tea: this function changes LEB properties (free, dirty, or flag). But the property that has the LPROPS_NC value? Not touching that one, periodt. It returns a pointer to the updated LEB properties on success, and a negative error code on failure, which is giving "not today satan" 😭.

⚠️ Real talk, bestie: the LEB properties may have had to be copied (due to COW — copy-on-write, iykyk), and consequently the pointer returned may not be the same as the pointer passed. So don't assume they're the same, because the original pointer is giving "before" and the returned one is giving "after" 💅✨

🔥 SEE ALSO 🔥

Okay so here's the whole squad of related functions you might wanna check out, all from the kernel file ./fs/ubifs/lprops.c (and some others, but mostly that one):

• get_heap_comp_val(9) — literal icon behavior
• move_up_lpt_heap(9) — slay
• adjust_lpt_heap(9) — also important
• add_to_lpt_heap(9) — the way that this one adds things
• remove_from_lpt_heap(9) — the opposite vibe
• lpt_heap_replace(9) — replacing, fr fr
• ubifs_add_to_cat(9) — categorization core
• ubifs_remove_from_cat(9) — removing from the category, periodt
• ubifs_replace_cat(9) — replacing categories, iconic
• ubifs_ensure_cat(9) — making sure, bestie
• ubifs_categorize_lprops(9) — the one that actually categorizes
• change_category(9) — changing categories, lowkey
• ubifs_calc_dark(9) — calculating dark stuff, mysterious
• is_lprops_dirty(9) — vibe check on whether it's dirty
• ubifs_get_lp_stats(9) — stats queen
• ubifs_change_one_lp(9) — changing one LP, the main character
• ubifs_update_one_lp(9) — updating one LP, also main character
• ubifs_read_one_lp(9) — reading one LP, bookworm energy
• ubifs_fast_find_free(9) — fast finding, no cap
• ubifs_fast_find_empty(9) — finding empty, empty vibes
• ubifs_fast_find_freeable(9) — finding freeable, freeable vibes
• ubifs_fast_find_frdi_idx(9) — frdi idx, iykyk
• dbg_check_cats(9) — debug check on cats, meow
• scan_check_cb(9) — scan check callback, callback queen
• dbg_check_lprops(9) — debug check on lprops, the final boss

Okay that's a wrap, bestie 🫶 This page is from the Kernel API Manual, sourced from ./fs/ubifs, dated October 2026, and it's all about ubifs_change_lp(9). Go forth and change those LEB properties, but remember: COW means the pointer might be a different baddie, so don't get too attached 😘✨