ubi_wl_put_peb(9)

🎀 ubi_wl_put_peb(9) — Kernel API Manual glow-up 🎀

🌸 NAME 🌸

ubi_wl_put_peb — return a PEB to the wear-leveling sub-system. 💖

✨ SYNOPSIS ✨

int ubi_wl_put_peb (struct ubi_device *ubi , int vol_id , int lnum , int
pnum , int torture );

💅 ARGUMENTS 💅

• ubi — UBI device description object 🫶
• vol_id — the volume ID that last used this PEB ✨
• lnum — the last used logical eraseblock number for the PEB 🎀
• pnum — physical eraseblock to return 🦋
• torture — if this physical eraseblock has to be tortured 😭

🦋 DESCRIPTION 🦋

okay so ubi_wl_put_peb is literally the “give this PEB back” function, bestie 💖 It’s called to return physical eraseblock pnum to the pool of free physical eraseblocks. The torture flag has to be set if an I/O error occurred to this pnum and it has to be tested — yes, “tortured” is the actual word, no cap 😭🔥

This function returns zero in case of success, and a negative error code in case of failure. Slay. 💅

🔥 SEE ALSO 🔥

Kernel file ./drivers/mtd/ubi/wl.c is the main-character file for this one 🫶 and the whole lineup is here:

• wl_tree_add(9)
• wl_entry_destroy(9)
• do_work(9)
• in_wl_tree(9)
• in_pq(9)
• prot_queue_add(9)
• find_wl_entry(9)
• find_mean_wl_entry(9)
• wl_get_wle(9)
• prot_queue_del(9)
• ubi_sync_erase(9)
• serve_prot_queue(9)
• __schedule_ubi_work(9)
• schedule_ubi_work(9)
• schedule_erase(9)
• do_sync_erase(9)
• wear_leveling_worker(9)
• ensure_wear_leveling(9)
• __erase_worker(9)
• ubi_wl_scrub_peb(9)
• ubi_wl_flush(9)
• ubi_bitflip_check(9)
• tree_destroy(9)
• ubi_thread(9)
• shutdown_work(9)
• erase_aeb(9)
• ubi_wl_init(9)
• protection_queue_destroy(9)
• ubi_wl_close(9)
• self_check_ec(9)
• self_check_in_wl_tree(9)
• self_check_in_pq(9)
• produce_free_peb(9)
• ubi_wl_get_peb(9)

okay that’s the whole page, bestie 💖 source/version: ./drivers/mtd/ubi · date: October 2026 · manual page: ubi_wl_put_peb(9) · go return that PEB responsibly 🫶✨