vdo_unpack_r...block_header(9)

💅 vdo_unpack_r...block_header(9) — Kernel API Manual, bestie edition 🎀

okay so this is the tea on vdo_unpack_recovery_block_header, straight out of the Kernel API Manual (vdo_unpack_r...block_header(9)). it's a lil function, it does one thing, and honestly? it ate. ✨

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🌸 NAME 🌸

vdo_unpack_recovery_block_header — Decode the packed representation of a recovery block header.

like, the packed version goes in, the actual readable header comes out. unpacking era. 🧳

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⭐ SYNOPSIS ⭐

struct recovery_block_header vdo_unpack_recovery_block_header (const
struct packed_journal_header *packed );

she takes one arg and hands you back the whole struct. no cap. 💖

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🦋 ARGUMENTS 🦋

• packed — The packed header to decode. that's it, that's the whole argument. give her the packed header and she'll do the rest 🫶

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👑 RETURN 👑

The unpacked header.

literally it. you give her the packed one, she gives you the unpacked one back. main character energy fr fr 💅

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🌈 SEE ALSO 🌈

the whole friend group, iykyk:

Kernel file ./drivers/md/dm-vdo/encodings.h

• Block map entries(9)
• vdo_are_same_version(9)
• vdo_pack_version_number(9)
• vdo_unpack_version_number(9)
• vdo_pack_header(9)
• vdo_unpack_header(9)
• vdo_get_index_region_start(9)
• vdo_get_data_region_start(9)
• vdo_get_index_region_size(9)
• vdo_pack_recovery_journal_entry(9)
• vdo_unpack_recovery_journal_entry(9)
• vdo_is_valid_recovery_journal_sector(9)
• vdo_compute_recovery_journal_block_number(9)
• vdo_get_journal_block_sector(9)
• vdo_pack_recovery_block_header(9)
• vdo_compute_slab_count(9)
• vdo_get_saved_reference_count_size(9)
• vdo_get_slab_journal_start_block(9)
• vdo_advance_journal_point(9)
• vdo_before_journal_point(9)
• vdo_pack_journal_point(9)
• vdo_unpack_journal_point(9)
• vdo_pack_slab_journal_block_header(9)
• vdo_unpack_slab_journal_block_header(9)
• vdo_pack_slab_journal_entry(9)
• vdo_unpack_slab_journal_entry(9)
• vdo_get_slab_summary_hint_shift(9)

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and that's the whole page, bestie 💜 this one lives at ./drivers/md/dm-vdo, dated October 2026, and it's filed under the very iconic vdo_unpack_r...block_header(9). go unpack something. slay. 💅✨