assert_in_bio_zone(9)

💅 assert_in_bio_zone(9)

okay so bestie, this is a page from the Kernel API Manual and honestly? it's short and it's giving "one job, does it well." 🎀

✨ NAME ✨

assert_in_bio_zone — the vibe check that confirms a vio is chilling in the correct bio zone and is not hanging out in interrupt context. no cap. 💅

✨ SYNOPSIS ✨

void assert_in_bio_zone (struct vio *vio );

🌸 ARGUMENTS 🌸

• vio — the vio you want to check. that's it, that's the whole argument, she's lowkey iconic for it 🫶

🦋 SEE ALSO 🦋

so the kernel file lives at ./drivers/md/dm-vdo/io-submitter.c and it's dating literally all of these:

• count_all_bios(9)
• send_bio_to_device(9)
• vdo_submit_vio(9)
• get_bio_list(9)
• submit_data_vio(9)
• get_mergeable_locked(9)
• try_bio_map_merge(9)
• vdo_submit_data_vio(9)
• __submit_metadata_vio(9)
• vdo_submit_metadata_vio_wait(9)
• vdo_make_io_submitter(9)
• vdo_cleanup_io_submitter(9)
• vdo_free_io_submitter(9)

and that's the whole page bestie, short and sweet, main character energy only 💖 this came out of ./drivers/md/dm-vdo, dated October 2026, and it's part of assert_in_bio_zone(9) — slay, go check your vio zones, periodt ✨🌟