launch_data...one_callback(9)

📦 version 7.3.1, in nixpkgs unstable

💅 launch_data...one_callback(9) 💅

okay so real talk, this page lives in the Kernel API Manual, and its whole name is giving "my parents named me before they knew me" energy — the header literally renders as launch_data...one_callback(9) with the middle chopped out and everything 😭. The actual function inside is the main character: launch_data_vio_bio_zone_callback. Keep that in your pocket, you'll need it.

✨ NAME ✨

launch_data_vio_bio_zone_callback — set a callback as a bio zone operation and invoke it immediately. That's it, that's the whole vibe. You hand it a callback, it gets marked as the bio zone operation, and then it gets called right away, no waiting, no "let me think about it", immediate. periodt. 🫶

🌸 SYNOPSIS 🌸

void launch_data_vio_bio_zone_callback (struct data_vio *data_vio ,
vdo_action_fn callback );

the way that signature just sits there with a space before the comma? iconic formatting, no notes 💅

🎀 ARGUMENTS 🎀

not me having to tell you this but the docs are lowkey empty here, so buckle up:

  • data_vio — -- undescribed -- 🙈 like. bestie. the manpage genuinely wrote "undescribed" and dipped. that's all we get.
  • callback — -- undescribed -- 💀 same situation, twin. two arguments, zero lore. iykyk.
fr fr though: the original page leaves both of these blank, so i'm not about to make up what they do and lie to you. go read struct data_vio in the header file below if you need the tea. ☕

🦋 SEE ALSO 🦋

the whole friend group, plus where they actually live:

like, that's a squad. nine callbacks and a header file, all matching energy 🌈

mwah, that's the page! 💖 stay hydrated, read your headers, and remember: immediate means immediate.

source/version: ./drivers/md/dm-vdo · dated October 2026 · Kernel API Manual 🧚‍♀️✨

bye bestie, slay your bio zones 🎀👑

📦 where this page comes from