get_leb_cnt(9)

💖 get_leb_cnt(9) 💖

okay so bestie, welcome to the Kernel API Manual page for get_leb_cnt — it's giving “how many empty LEBs do I need to commit?” energy, and honestly it's kinda iconic for such a tiny function. 🫶

🌸 NAME 🌸

get_leb_cnt — calculate the number of empty LEBs needed to commit. That's the whole assignment, no cap. ✨

🦋 SYNOPSIS 🦋

literally the signature, copy it exactly bestie:

int get_leb_cnt (struct ubifs_info *c , int cnt );

🎀 ARGUMENTS 🎀

• c — UBIFS file-system description object. It's the file-system's main-character data structure. 💅
• cnt — number of znodes to commit. Slay, that's the count you're trying to commit. 🍓

✨ DESCRIPTION ✨

So get_leb_cnt returns the number of empty LEBs needed to commit cnt znodes to the current index head. That's the core tea. 🫖

Lowkey important: the number is not exact and may be more than needed. So don't treat it like a perfect little precise value — it's giving “close enough for commit logistics”, periodt. 💀

💜 SEE ALSO 💜

• Kernel file ./fs/ubifs/tnc_commit.c — the source file bestie, iykyk. 🧚
• make_idx_node(9)
• fill_gap(9)
• find_old_idx(9)
• is_idx_node_in_use(9)
• layout_leb_in_gaps(9)
• layout_in_gaps(9)
• layout_in_empty_space(9)
• layout_commit(9)
• find_first_dirty(9)
• find_next_dirty(9)
• get_znodes_to_commit(9)
• alloc_idx_lebs(9)
• free_unused_idx_lebs(9)
• free_idx_lebs(9)
• ubifs_tnc_start_commit(9)
• write_index(9)
• free_obsolete_znodes(9)
• return_gap_lebs(9)
• ubifs_tnc_end_commit(9)

okay bye bestie, this page came from the ./fs/ubifs source/version and it's dated October 2026 — catch you in the kernel source, mwah 💋✨