calc_idx_growth(9)

calc_idx_growth(9) 💅

okay so bestie, welcome to the Kernel API Manual — this page is all about calc_idx_growth(9), and it is literally here to calculate approximate index growth from a budgeting request. no cap. 🦋

💖 NAME 💖

calc_idx_growth — calculate approximate index growth from budgeting request.

✨ SYNOPSIS ✨

int calc_idx_growth (const struct ubifs_info *c , const struct ubifs_budget_req *req );

🫶 ARGUMENTS 🫶

• c — UBIFS file-system description object — that's the filesystem's little description object, bestie. 🌸
• req — budgeting request — the request doing the budgeting vibe. 🎀

💅 DESCRIPTION 💅

okay so, for now we assume each new node adds one znode. But ngl, that is a rather poor approximation, though. 😭 it's giving "close enough" but make it kernel budgeting.

🌈 SEE ALSO 🌈

Kernel file ./fs/ubifs/budget.c, plus the whole squad:

• 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_data_growth(9)
• calc_dd_growth(9)
• ubifs_budget_space(9)
• ubifs_release_budget(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)

k bye bestie 🫶 — source/version: ./fs/ubifs · date: October 2026 · this page is calc_idx_growth(9) and it ate. 💖