vdo_encode_component_states(9)

💅 vdo_encode_component_states(9)

okay so bestie, welcome to the Kernel API Manual ✨ — today's main character is vdo_encode_component_states, and honestly? She's a little workhorse and we respect her for it 🫶

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🌸 NAME

vdo_encode_component_states — literally encodes the state of all the vdo components into the super block 💖

no cap, that's the whole job. all of them. the whole squad gets packed up.

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🦋 SYNOPSIS

void vdo_encode_component_states (u8 *buffer , size_t *offset , const
struct vdo_component_states *states );

she takes three things and returns absolutely nothing (void, iconic, unbothered) 💅

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🎀 ARGUMENTS

• buffer — a buffer to store the encoding 💾 like, this is where the packed-up states actually go. the destination. the moment.
• offset — the offset into the buffer to start the encoding 📍 iykyk, she does not start at the beginning, she starts exactly here.
• states — the component states to encode 👑 the actual content. the lore. and it's const, so hands off, she's just reading it.

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🔥 SEE ALSO

okay this list is long, so buckle up bestie — the kernel file in question is ./drivers/md/dm-vdo/encodings.c, and here's everyone in the group chat:

• 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)
• 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_super_block(9)
• vdo_decode_super_block(9)
• vdo_initialize_component_states(9)
• vdo_compute_index_blocks(9)
• vdo_initialize_volume_geometry(9)

like I said. everyone. 💀 no one got left on read.

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✨ cute sign-off ✨

this lil beauty lives under ./drivers/md/dm-vdo and the page is dated October 2026 🗓️ — go forth, encode those component states, and slay 💜🦋🌸