parse_device_config(9)

💅 parse_device_config(9) — a Kernel API Manual moment

okay bestie, welcome to the parse_device_config(9) page ✨ this is the one where we take a raw dmsetup table and turn it into an actual struct device_config — like, the table walks in wearing its string-y little outfit and leaves as a fully allocated struct. glow-up of the century, honestly 🦋

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✨ NAME ✨

parse_device_config — literally converts the dmsetup table into a struct device_config. that's the whole vibe. no cap 💖

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🌸 SYNOPSIS 🌸

int parse_device_config (int argc , char **argv , struct dm_target *ti ,
struct device_config **config_ptr );

that's the whole signature, character for character, don't @ me 🫶

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🎀 ARGUMENTS 🎀

• argc — the number of table values. yes, the count. the little number bestie 🤏
• argv — the array of table values. all the strings, lined up and ready 💅
• ti — the target structure for this table. it's the target, main character energy 👑
• config_ptr — a pointer to return the allocated config. the config comes out through here, she's being handed back to you 🎁

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⭐ RETURN ⭐

VDO_SUCCESS or an error code. that's it. slay or not slay, no in-between 😭

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🌈 SEE ALSO 🌈

so there's a whole friend group here, and we're not leaving anyone out — not a single one, periodt 💀

• Kernel file: ./drivers/md/dm-vdo/dm-vdo-target.c
• free_device_config(9)
• get_version_number(9)
• parse_bool(9)
• parse_memory(9)
• parse_slab_size(9)
• process_one_thread_config_spec(9)
• parse_one_thread_config_spec(9)
• parse_thread_config_string(9)
• process_one_key_value_pair(9)
• parse_one_key_value_pair(9)
• parse_key_value_pairs(9)
• parse_optional_arguments(9)
• handle_parse_error(9)
• get_thread_id_for_phase(9)
• advance_phase(9)
• finish_operation_callback(9)
• decode_from_super_block(9)
• decode_vdo(9)
• pre_load_callback(9)
• get_bit_array_size(9)
• grow_bit_array(9)
• allocate_instance(9)
• check_may_grow_physical(9)
• grow_layout(9)
• validate_new_device_config(9)
• write_super_block_for_suspend(9)
• suspend_callback(9)
• was_new(9)
• requires_repair(9)
• get_load_type(9)
• load_callback(9)
• handle_load_error(9)
• write_super_block_for_resume(9)
• resume_callback(9)
• grow_logical_callback(9)
• handle_logical_growth_error(9)
• perform_grow_logical(9)
• copy_partition(9)
• grow_physical_callback(9)
• handle_physical_growth_error(9)
• perform_grow_physical(9)
• apply_new_vdo_configuration(9)

ngl that's the entire squad and every single one of them is iconic in her own way. go read them too, iykyk 🔥

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that's the page, bestie 💜 this one lives in ./drivers/md/dm-vdo, dated October 2026, and it's filed under parse_device_config(9) — catch you in the next manpage, mwah 🧚🍓