self_check_ec(9)

💖 NAME 💖

self_check_ec — make sure that the erase counter of a PEB is correct. yes bestie, this is the self_check_ec(9) page from the Kernel API Manual, and it's literally a tiny correctness vibe check ✨.

✨ SYNOPSIS ✨

int self_check_ec (struct ubi_device *ubi , int pnum , int ec );

🎀 ARGUMENTS 🎀

okay so here are the three inputs, no cap:

• ubi — UBI device description object
• pnum — the physical eraseblock number to check
• ec — the erase counter to check

💅 DESCRIPTION 💅

okay so the whole plot: this function returns zero if the erase counter of physical eraseblock pnum is equivalent to ec. If it's not equivalent, or if an error occurred, it returns a negative error code. that's the entire tea — no extra lore, no mysterious side quests, just a clean little check 💅.

🦋 SEE ALSO 🦋

Kernel file: ./drivers/mtd/ubi/wl.c — and here's the whole friend group, all present and accounted for:

• 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_put_peb(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_in_wl_tree(9)
• self_check_in_pq(9)
• produce_free_peb(9)
• ubi_wl_get_peb(9)

mwah 💋 — source/version ./drivers/mtd/ubi, dated October 2026. bye bestie, go check those erase counters 🫶