allocate_partition(9)

💖 allocate_partition(9) 💖

okay bestie, welcome to the Kernel API Manual — this one's allocate_partition(9) and it's literally about carving out a little home for a partition inside a layout. so cozy. let's go 🎀

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✨ NAME ✨

allocate_partition — Allocate a partition and add it to a layout.

like, it makes the partition AND moves it in. one trip, no extra U-Haul. 🚚

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🌸 SYNOPSIS 🌸

int allocate_partition (struct layout *layout , u8 id ,
       physical_block_number_t offset , block_count_t size );

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🦋 ARGUMENTS 🦋

• layout — The layout containing the partition. this is the whole vibe — the layout is the main character and the partition lives inside it 💅
• id — The id of the partition. yes queen, give her an identity 🪪
• offset — The offset into the layout at which the partition begins. like where in the layout she starts existing 📍
• size — The size of the partition in blocks. how much room she takes up — blocks, not vibes 🧱

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👑 RETURN 👑

Returns VDO_SUCCESS or an error. that's it, that's the whole outcome — either she ate or she didn't 🔥

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🌈 SEE ALSO 🌈

the whole friend group, no cap — from the kernel file ./drivers/md/dm-vdo/encodings.c:

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), make_partition(9), vdo_initialize_layout(9), vdo_uninitialize_layout(9), vdo_get_partition(9), vdo_get_known_partition(9), pack_vdo_config(9), pack_vdo_component(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)

like… that's a lot of friends and every single one of them is invited, periodt. 📋

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ngl there are no options, no environment variables, no exit-status drama, no bugs section and no copyright paragraphs on this page — it's a short and sweet one, and we're not gonna invent any. keeping it honest, fr fr 🫶

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and that's the whole page!! this little diva comes from ./drivers/md/dm-vdo and she was dated October 2026 — put that in your calendar, bestie, because she's iconic and she knows it 💜✨🎀