launch_data_vio(9)

✨ launch_data_vio(9) ✨ — the Kernel API Manual glow-up you didn't know you needed 💅

okay so bestie, welcome to the Kernel API Manual section for launch_data_vio, and no cap this one is literally the "glow-up and go" of the kernel world. Let's get into it 🫶

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🌸 NAME 🌸

launch_data_vio — the way that we (re)initialize a data_vio so it has a new logical block number, keep the same parent and all the other state, and then send it on its way. periodt. 💖

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🎀 SYNOPSIS 🎀

void launch_data_vio (struct data_vio *data_vio , logical_block_number_t lbn );

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🦋 ARGUMENTS 🦋

• data_vio — The data_vio to launch. this is our main character fr fr 🔥
• lbn — The logical block number. the new fit it's gonna wear 💅

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🌈 SEE ALSO 🌈

okay bestie, buckle up 💀 — there are so many siblings and cousins in this kernel family, and the original says we have to list every single one. no skipping, no summarizing, we don't do that here 👑

From the Kernel file ./drivers/md/dm-vdo/data-vio.c, plus these iconique friends:

• Bio flags.(9)
• Introduction(9)
• check_for_drain_complete_locked(9)
• pack_status(9)
• set_data_vio_compression_status(9)
• cancel_data_vio_compression(9)
• attempt_logical_block_lock(9)
• schedule_releases(9)
• process_release_callback(9)
• initialize_data_vio(9)
• make_data_vio_pool(9)
• free_data_vio_pool(9)
• vdo_launch_bio(9)
• drain_data_vio_pool(9)
• resume_data_vio_pool(9)
• dump_data_vio_pool(9)
• release_allocated_lock(9)
• release_logical_lock(9)
• finish_cleanup(9)
• get_data_vio_operation_name(9)
• data_vio_allocate_data_block(9)
• release_data_vio_allocation_lock(9)
• uncompress_data_vio(9)
• modify_for_partial_write(9)
• read_block(9)
• update_block_map(9)
• read_old_block_mapping(9)
• pack_compressed_data(9)
• compress_data_vio(9)
• launch_compress_data_vio(9)
• hash_data_vio(9)
• write_bio_finished(9)
• acknowledge_write_callback(9)
• allocate_block(9)
• handle_allocation_error(9)
• continue_data_vio_with_block_map_slot(9)

like… that's the whole group chat, tagged and everything 📱✨

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and that's the whole page bestie, you ate that 🍓💜

this slay of a manual page lives in ./drivers/md/dm-vdo and it's dated October 2026 — mwah, kisses, go launch your data_vio 👑🦋💖