rebuild_refe...ts_from_page(9)

💖 NAME 💖

rebuild_reference_counts_from_page — bestie, this one rebuilds the reference counts straight from a block map page. That's the whole vibe. ✨

(Oh and hiiiii, this is from the Kernel API Manual — welcome to the group chat 🫶)

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✨ SYNOPSIS ✨

void rebuild_reference_counts_from_page (struct repair_completion
*repair , struct vdo_completion *completion );

Like, that's literally it. Two args, one function, zero drama (okay maybe a little drama, it's kernel repair code 😭).

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🎀 ARGUMENTS 🎀

• repair — the repair completion. It's giving "the whole repair operation, main character energy" 👑
• completion — the page completion, aka the thing that's literally holding the page for you. Iconic. Hold it gently 🥺

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🦋 SEE ALSO 🦋

Okay so first off, the source lives in the Kernel file ./drivers/md/dm-vdo/repair.c — that's the home base 🏠. And here's the whole friend group, no cap, every single one of them:

• as_repair_completion(9)
• abort_repair(9)
• abort_on_error(9)
• drain_slab_depot(9)
• flush_block_map_updates(9)
• handle_page_load_error(9)
• unmap_entry(9)
• remove_out_of_bounds_entries(9)
• process_slot(9)
• page_loaded(9)
• fetch_page(9)
• rebuild_from_leaves(9)
• process_entry(9)
• advance_points(9)
• before_recovery_point(9)
• get_entry(9)
• validate_recovery_journal_entry(9)
• add_slab_journal_entries(9)
• vdo_replay_into_slab_journals(9)
• find_entry_starting_next_page(9)
• get_recovery_journal_block_header(9)
• is_valid_recovery_journal_block(9)
• is_exact_recovery_journal_block(9)
• find_recovery_journal_head_and_tail(9)
• unpack_entry(9)
• append_sector_entries(9)
• extract_new_mappings(9)
• compute_usages(9)
• vdo_repair(9)

Like, that's the entire entourage 💅 go read them, iykyk.

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ngl bestie, this is deep kernel internals — read it slow, and don't @ me if you're confused, the manpage is right there 😭💀

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✨ that's a wrap ✨ this gorgeous little page came from ./drivers/md/dm-vdo, dated October 2026, and it answers to the name rebuild_refe...ts_from_page(9). mwah 💋 🎀🦋💜