vdo_unpack_header(9)

🌸 vdo_unpack_header(9) 🌸

okay bestie, welcome to the Kernel API Manual — we’re looking at vdo_unpack_header(9), and it’s giving tiny-but-iconic energy ✨

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🎀 NAME 🎀

• vdo_unpack_header — takes a packed_header and gives you back its native in-memory representation. no cap, that’s the whole vibe 💅

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✨ SYNOPSIS ✨

struct header vdo_unpack_header (const struct packed_header *header );

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🫶 ARGUMENTS 🫶

• header — the header you want converted, bestie 💖

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💫 RETURN 💫

You get back the platform-independent representation of the version — that’s the return value, periodt 🌈

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/md/dm-vdo/encodings.h — and Block map entries(9) too, bestie 🫶
• vdo_are_same_version(9)
• vdo_pack_version_number(9)
• vdo_unpack_version_number(9)
• vdo_pack_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_unpack_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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mwah 💋 this one comes from ./drivers/md/dm-vdo, dated October 2026 — go off, kernel docs, and stay hydrated 🧚💜