adjust_lpt_heap(9)

🌸 adjust_lpt_heap(9) 🌸

Ok bestie, welcome to the Kernel API Manual 💖 — this page is all about adjust_lpt_heap, and it's lowkey iconic kernel-internals behavior. No cap.

✨ NAME ✨

adjust_lpt_heap — move a changed heap entry up or down the heap. 💅 Periodt.

🎀 SYNOPSIS 🎀

void adjust_lpt_heap (struct ubifs_info *c , struct ubifs_lpt_heap *heap , struct ubifs_lprops *lprops , int hpos , int cat );

🦋 ARGUMENTS 🦋

• c — UBIFS file-system description object. 💖
• heap — LEB category heap. ✨
• lprops — LEB properties to move. 🎀
• hpos — heap position of lprops. 🌸
• cat — LEB category. 🫶

🌈 DESCRIPTION 🌈

Okay so here's the tea ☕: changed entries in a heap are moved up or down until the parent's value is greater. That's the whole little shuffle vibe. 💃

And for LPT's category heaps, that value is either the amount of free space or the amount of dirty space, depending on the category. Literally depends on the category, bestie. 🧚💜

👑 SEE ALSO 👑

If you're going down the kernel rabbit hole 🐇✨, the kernel file is ./fs/ubifs/lprops.c, and the whole related squad is:

• get_heap_comp_val(9)
• move_up_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_free(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)

Mwah 💋 this page is from source/version ./fs/ubifs, dated October 2026, and it's literally adjust_lpt_heap(9). Slay. 🫶💖