grow_physical_callback(9)

💅 grow_physical_callback(9) — Kernel API Manual, section 9 🎀

okay so bestie, welcome to the Kernel API Manual, section 9, and today's main character is grow_physical_callback. she's the one who kicks off a grow physical. that's it, that's the plot ✨

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🌸 NAME 🌸

grow_physical_callback — the callback that initiates a grow physical. she shows up, she starts the thing. iconic behavior honestly 💅

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🦋 SYNOPSIS 🦋

void grow_physical_callback (struct vdo_completion *completion );

note the void — she returns nothing, she's not here to give you answers, she's here to start stuff. 🔥

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🎀 ARGUMENTS 🎀

• completion — the admin completion. that's the whole vibe. that's the parameter. struct vdo_completion pointer, and it's the admin one, no cap 🫶

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💖 DESCRIPTION 💖

so basically: this callback is registered in perform_grow_physical. that's the whole description, and honestly? she said what she said. short, sweet, registered. ⭐

lowkey the shortest DESCRIPTION ever and I respect it so much 😭

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🔥 SEE ALSO 🔥

the friend group. the whole group chat. and yes, you're gonna read all of them, because I said so 💜

the kernel file ./drivers/md/dm-vdo/dm-vdo-target.c, plus:

• 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)
• parse_device_config(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)
• handle_physical_growth_error(9)
• perform_grow_physical(9)
• apply_new_vdo_configuration(9)

like, the whole dm-vdo extended universe is in here 🧚

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and that's the page!! 💫 huge thanks to the source at ./drivers/md/dm-vdo, dated October 2026 — mwah, love you, mean it 🫶💖🎀