ubifs_release_budget(9)

💅 ubifs_release_budget(9) — like, the Kernel API Manual, bestie ✨

okay so we're doing ubifs_release_budget(9) today and honestly? she's a little legend. this is the Kernel API Manual page for her, and we're gonna get into it. 🎀

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🌸 NAME 🌸

ubifs_release_budget — release budgeted free space. that's it, that's the vibe. 💖

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✨ SYNOPSIS ✨

void ubifs_release_budget (struct ubifs_info *c , struct
ubifs_budget_req *req );

look at her signature, so clean, so iconic. 🫶

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🦋 ARGUMENTS 🦋

• c — the UBIFS file-system description object. yes bestie, this is the whole file system, she's the main character here. 👑
• req — the budget request. this is the little note that says what we're budgeting for. 📝

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🌈 DESCRIPTION 🌈

so what does she actually do? this function releases the space budgeted by ubifs_budget_space. giving "i took out a loan and now i'm paying it back" energy, honestly. 💸

but wait, there's a note, and the note is important.

since the index changes — the ones that were budgeted for in req->idx_growth — will only be written to the media on commit, this function moves the index budget from c->bi.idx_growth to c->bi.uncommitted_idx. no cap, she's literally just relocating it. 🚚

and the latter (c->bi.uncommitted_idx, if you were keeping track) will be zeroed by the commit operation. so it's not forever, it's just... pending. the way that commit comes through and wipes it clean, we love a fresh start. ✨

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💜 SEE ALSO 💜

Kernel file ./fs/ubifs/budget.c — that's the home base, iykyk. and then the whole friend group, gathered for the group chat:

• shrink_liability(9)
• run_gc(9)
• get_liability(9)
• make_free_space(9)
• ubifs_calc_min_idx_lebs(9)
• ubifs_calc_available(9)
• can_use_rp(9)
• do_budget_space(9)
• calc_idx_growth(9)
• calc_data_growth(9)
• calc_dd_growth(9)
• ubifs_budget_space(9)
• ubifs_convert_page_budget(9)
• ubifs_release_dirty_inode_budget(9)
• ubifs_reported_space(9)
• ubifs_get_free_space_nolock(9)
• ubifs_get_free_space(9)

like, the whole squad fr fr. 🫶💖

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anyway, that's the page! she lives in ./fs/ubifs and the version/date on this one is October 2026 — so, yeah, mark your calendar, this is a whole era. 🌸✨ slay, bye! 💅