pack_vdo_component(9)

💾 pack_vdo_component(9) 💾

okay so bestie, welcome to the pack_vdo_component page — it's a kernel API manual entry, and honestly? it's a little icon. short, sweet, does exactly one thing. let's get into it 🫶

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✨ NAME ✨

pack_vdo_component — take a vdo_component and convert it into its packed on-disk representation. that's it. that's the whole gig. no cap 💅

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🦋 SYNOPSIS 🦋

struct packed_vdo_component_41_0 pack_vdo_component (const struct vdo_component component );

like, literally just hand it a component and it hands you back the packed version. main character behaviour fr 🎀

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🌸 ARGUMENTS 🌸

• component — the VDO component data you want to convert. that's the whole input, bestie, it's not asking for much 🍓

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⭐ RETURN ⭐

it returns the platform-independent representation of the component ✨ — so whatever machine you're on, the output is the same shape. slay.

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👑 SEE ALSO 👑

this is the part where the page just. keeps. going. 😭 the source of truth lives in the kernel file ./drivers/md/dm-vdo/encodings.c, and here's the whole friend group it runs with:

• validate_version(9)
• vdo_validate_header(9)
• decode_volume_geometry(9)
• vdo_encode_volume_geometry(9)
• vdo_parse_geometry_block(9)
• vdo_compute_new_forest_pages(9)
• encode_recovery_journal_state_7_0(9)
• decode_recovery_journal_state_7_0(9)
• vdo_get_journal_operation_name(9)
• encode_slab_depot_state_2_0(9)
• decode_slab_depot_state_2_0(9)
• vdo_configure_slab_depot(9)
• vdo_configure_slab(9)
• vdo_decode_slab_journal_entry(9)
• allocate_partition(9)
• make_partition(9)
• vdo_initialize_layout(9)
• vdo_uninitialize_layout(9)
• vdo_get_partition(9)
• vdo_get_known_partition(9)
• pack_vdo_config(9)
• unpack_vdo_config(9)
• unpack_vdo_component_41_0(9)
• decode_vdo_component(9)
• vdo_validate_config(9)
• vdo_destroy_component_states(9)
• decode_components(9)
• vdo_decode_component_states(9)
• vdo_validate_component_states(9)
• vdo_encode_component_states(9)
• vdo_encode_super_block(9)
• vdo_decode_super_block(9)
• vdo_initialize_component_states(9)
• vdo_compute_index_blocks(9)
• vdo_initialize_volume_geometry(9)

iykyk 😌 go read them, they're all part of the same little encodings family.

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and that's the page!! mwah 💋

sign-off time: this lil beauty comes from ./drivers/md/dm-vdo, dated October 2026, and it's filed under pack_vdo_component(9) — periodt. 🧚‍♀️💜