assert_on_packer_thread(9)

💅 assert_on_packer_thread(9) 💅

okay so real talk, this one lives in the Kernel API Manual and it's basically the function that goes "bestie, are you actually on the packer thread rn?" like a vibe check but for threads 🧵✨

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✨ NAME ✨

assert_on_packer_thread — the little check that confirms we are, in fact, on the packer thread. no cap, that's the whole job 🫶

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🎀 SYNOPSIS 🎀

void assert_on_packer_thread (struct packer *packer , const char *caller
);

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🌸 ARGUMENTS 🌸

• packer — the packer. that's it, that's the description 💀 the packer in question, the main character of this whole situation 👑
• caller — the function that's doing the asserting. like, who's out here claiming they're on the packer thread? name names bestie 📢

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🦋 SEE ALSO 🦋

first up, the glow-up source file itself, sitting pretty at Kernel file ./drivers/md/dm-vdo/packer.c — go read it, iykyk 💖

and then, the whole friend group, fr fr (all of them are (9) sections):

• vdo_get_compressed_block_fragment(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)
• finish_compressed_write(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)

like... that's the whole squad. nobody's missing. periodt 🌈💅

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ngl bestie, this page is short and sweet — no options, no defaults, no env vars, no exit statuses, no warnings. it's just the assert and its entourage. slay for being thorough and reading the whole thing tho 🥹💜

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and that's the page!! mwah 😘 this little baddie comes to you from ./drivers/md/dm-vdo, dated October 2026, and it's still out here doing the most for assert_on_packer_thread(9) — go off, icon 👑⭐🍓