finish_compressed_write(9)

✨ finish_compressed_write(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one's a tiny little page about a callback in the kernel, and honestly it's giving "small but essential" main character energy 💅

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🌸 NAME 🌸

finish_compressed_write — the one that wraps up a compressed block write. that's it, that's the vibe 🎀

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🦋 SYNOPSIS 🦋

void finish_compressed_write (struct vdo_completion *completion );

like literally just that. one function, one argument, no cap ✨

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💖 ARGUMENTS 💖

• completion — The compressed write completion. this is the completion struct that's, y'know, doing the completing 🫶

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🌈 DESCRIPTION 🌈

so here's the lowkey important bit: this callback? it's registered in continue_after_allocation. that's the whole description, bestie — she's short and she knows it 👑

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🎀 SEE ALSO 🎀

the friend group 💜 — every single one of them, no skipping:

• Kernel file ./drivers/md/dm-vdo/packer.c
• vdo_get_compressed_block_fragment(9)
• assert_on_packer_thread(9)
• insert_in_sorted_list(9)
• make_bin(9)
• vdo_make_packer(9)
• vdo_free_packer(9)
• get_packer_from_data_vio(9)
• vdo_get_packer_statistics(9)
• abort_packing(9)
• release_compressed_write_waiter(9)
• add_to_bin(9)
• remove_from_bin(9)
• initialize_compressed_block(9)
• pack_fragment(9)
• compressed_write_end_io(9)
• write_bin(9)
• add_data_vio_to_packer_bin(9)
• select_bin(9)
• vdo_attempt_packing(9)
• check_for_drain_complete(9)
• write_all_non_empty_bins(9)
• vdo_flush_packer(9)
• vdo_remove_lock_holder_from_packer(9)
• vdo_increment_packer_flush_generation(9)
• vdo_drain_packer(9)
• vdo_resume_packer(9)
• vdo_dump_packer(9)

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ngl this page is short enough to read in the time it takes your coffee to finish brewing ☕ — but every single field is here, so go off 💅

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and that's a wrap, fr fr 🦋 this whole thing lives over at ./drivers/md/dm-vdo, dated October 2026 — mwah, go read the packer code bestie, ily 💖✨