replay_bud(9)

💅 replay_bud(9) 💅

ok so this is a page from the Kernel API Manual — yes we're in kernel-land, bestie, and honestly? it's kind of iconic in here. this one's all about a little function called replay_bud, and if you're messing with UBIFS replay you're gonna want to know her 🫶

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✨ NAME ✨

replay_bud — replay a bud logical eraseblock. that's it, that's the vibe. a whole little eraseblock getting its moment on the replay stage 💅

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🌸 SYNOPSIS 🌸

int replay_bud (struct ubifs_info *c , struct bud_entry *b );

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🎀 ARGUMENTS 🎀

• c — the UBIFS file-system description object. your whole file-system's little ID card, basically 🪪
• b — the bud entry which describes the bud. she's the main character here, the one getting replayed 👑

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💖 DESCRIPTION 💖

so what does she actually do? replay_bud replays bud b, recovers it if needed, and then adds all nodes from this bud to the replay list. that's the whole gig, no cap ✨

as for what you get back — returns zero in case of success and a negative error code in case of failure. so 0 = slay, negative = something went off the rails 😭

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🦋 SEE ALSO 🦋

okay so the kernel file to go look at is ./fs/ubifs/replay.c, and she has so many friends. like a whole friend group, fr fr:

• struct replay_entry(9)
• struct bud_entry(9)
• set_bud_lprops(9)
• set_buds_lprops(9)
• trun_remove_range(9)
• inode_still_linked(9)
• apply_replay_entry(9)
• replay_entries_cmp(9)
• apply_replay_list(9)
• destroy_replay_list(9)
• insert_node(9)
• insert_dent(9)
• ubifs_validate_entry(9)
• is_last_bud(9)
• authenticate_sleb(9)
• replay_buds(9)
• destroy_bud_list(9)
• add_replay_bud(9)
• validate_ref(9)
• replay_log_leb(9)
• take_ihead(9)
• ubifs_replay_journal(9)

group chat's fully assembled, iykyk 🫶

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ngl bestie, this lives in ./fs/ubifs and the page is dated October 2026 — so yes, she's from the future, and yes, she ate 💅✨👑