ubifs_fast_find_free(9)

✨ ubifs_fast_find_free(9) ✨

okay so bestie, this one's from the kernel API manual — it's ubifs_fast_find_free, a tiny little function in the UBIFS fam and honestly? it's giving "quick vibe check on your LEBs" 💅

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🌸 NAME 🌸

ubifs_fast_find_free — try to find a LEB with free space quickly.

like, quickly quickly. no deep scanning, no dramatic main-character search montage. just a fast little peek 👀

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🦋 SYNOPSIS 🦋

const struct ubifs_lprops * ubifs_fast_find_free (struct ubifs_info *c
);

yep, that's the whole signature bestie — it hands you back a const struct ubifs_lprops * and takes exactly one arg 🎀

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🎀 ARGUMENTS 🎀

• c — the UBIFS file-system description object. literally the whole file system's info bundle, wrapped up in one struct, and it's the only thing this function needs to do its thing 🫶

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💖 DESCRIPTION 💖

so what does it actually do? it returns LEB properties for a LEB with free space — slay — or NULL if the function is unable to find a LEB quickly 😭

that's the whole deal. no cap. fast search works out? you get lprops. fast search doesn't work out? NULL, and whoever called it has to deal with that, not this function's problem ✨

💀 gentle reminder: NULL here is a real, expected outcome, not a bug. it literally means "couldn't find one quickly" — the emphasis on quick is doing a lot of work in that sentence, iykyk.

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🔥 SEE ALSO 🔥

all the sibling functions, and yes there are so many, they're all in the kernel file ./fs/ubifs/lprops.c:

• get_heap_comp_val(9)
• move_up_lpt_heap(9)
• adjust_lpt_heap(9)
• add_to_lpt_heap(9)
• remove_from_lpt_heap(9)
• lpt_heap_replace(9)
• ubifs_add_to_cat(9)
• ubifs_remove_from_cat(9)
• ubifs_replace_cat(9)
• ubifs_ensure_cat(9)
• ubifs_categorize_lprops(9)
• change_category(9)
• ubifs_calc_dark(9)
• is_lprops_dirty(9)
• ubifs_change_lp(9)
• ubifs_get_lp_stats(9)
• ubifs_change_one_lp(9)
• ubifs_update_one_lp(9)
• ubifs_read_one_lp(9)
• ubifs_fast_find_empty(9)
• ubifs_fast_find_freeable(9)
• ubifs_fast_find_frdi_idx(9)
• dbg_check_cats(9)
• scan_check_cb(9)
• dbg_check_lprops(9)

the fast-find girlies (ubifs_fast_find_empty(9), ubifs_fast_find_freeable(9), ubifs_fast_find_frdi_idx(9)) are right there in the list too — squad goals fr fr 👑

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and that's the page! 🌈 sign-off time: this one lives under ./fs/ubifs and the version/date stamp on it is October 2026 — so yeah, future-dated and iconic for it 💜 bye bestie, go find those free LEBs 🧚