bio_trim(9)

💅 bio_trim(9) — the Kernel API Manual, but make it cute ✨

okay bestie, so you're looking at bio_trim, and manual page bio_trim(9). it lives in the Kernel API Manual and honestly? it's a lil icon. lowkey does exactly what it says on the tin: it trims a bio. slay.

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🌸 SYNOPSIS 🌸

void bio_trim (struct bio *bio , sector_t offset , sector_t size );

that's the whole vibe. one function, three args, zero drama. periodt.

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🎀 ARGUMENTS 🎀

• bio — the bio we're about to trim, bestie. this is the main character of the operation, no cap.
• offset — the number of sectors we're trimming from the front of bio. like cutting the crusts off a sandwich. 🥪
• size — the size we want to trim bio to, measured in sectors. this is the goal, the dream, the final form. ✨

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💖 DESCRIPTION 💖

so the tea is: this function is typically used for bios that are cloned and then submitted to the underlying device in parts. it's giving "break it down and ship it" energy. like slicing a pizza and handing out the pieces one by one. 🍕 ikyk.

it's not out here doing anything wild — it just trims. iconic, honestly. 🔥

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🌈 SEE ALSO 🌈

okay so there are a lot of friends in this kernel friend group, and they all deserve a moment, so let's do a lil roll call:

• Kernel file ./block/bio.c, plus these absolute legends:
  • bio_reset(9)
  • bio_reuse(9)
  • bio_chain(9)
  • bio_chain_and_submit(9)
  • bio_alloc_bioset(9)
  • bio_kmalloc(9)
  • bio_truncate(9)
  • guard_bio_eod(9)
  • bio_put(9)
  • bio_alloc_clone(9)
  • bio_init_clone(9)
  • bio_full(9)
  • __bio_add_page(9)
  • bio_add_virt_nofail(9)
  • bio_add_page(9)
  • bio_add_folio(9)
  • bio_add_vmalloc_chunk(9)
  • bio_add_vmalloc(9)
  • bio_iov_iter_get_pages(9)
  • bio_iov_iter_bounce(9)
  • bio_iov_iter_unbounce(9)
  • bio_await(9)
  • submit_bio_wait(9)
  • bdev_rw_virt(9)
  • bio_copy_data(9)
  • bio_endio(9)
  • bio_split(9)
  • bioset_init(9)

every single one. we don't leave anyone out of the group chat. 🫶

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and yes, this whole thing belongs to the ./block fam, dated October 2026. consider that the lil timestamp on the story. ⭐

stay trimmed, stay slay, and remember: the vibes are immutable. 🦋💜