unmap_peb(9)

💅 NAME 💅

okay so bestie, this is the unmap_peb(9) page from the Kernel API Manual, and it's literally giving “unmap a PEB” energy. The name is unmap_peb — unmap a PEB. And the lore is: if fastmap detects a free PEB in the pool, it has to check whether this PEB has been unmapped after writing the fastmap. no cap, that's the whole vibe 💖

✨ SYNOPSIS ✨

void unmap_peb (struct ubi_attach_info *ai , int pnum );

🎀 ARGUMENTS 🎀

• ai — UBI attach info object. the object in question, slay ✨
• pnum — The PEB to be unmapped. literally the PEB getting unmapped 💅

🦋 SEE ALSO 🦋

Kernel file ./drivers/mtd/ubi/fastmap.c is the main character here, and these related pages are all in the group chat — every single one, no skipping 🫶

• init_seen(9)
• free_seen(9)
• set_seen(9)
• self_check_seen(9)
• ubi_calc_fm_size(9)
• new_fm_vbuf(9)
• add_aeb(9)
• add_vol(9)
• assign_aeb_to_av(9)
• update_vol(9)
• process_pool_aeb(9)
• scan_pool(9)
• count_fastmap_pebs(9)
• ubi_attach_fastmap(9)
• find_fm_anchor(9)
• ubi_scan_fastmap(9)
• ubi_write_fastmap(9)
• invalidate_fastmap(9)
• return_fm_pebs(9)
• ubi_update_fastmap(9)

okay bye bestie 🫶 this page's source/version tag is ./drivers/mtd/ubi, the date is October 2026, and the manual page is unmap_peb(9) 💅✨