bh_end_write(9)

💅 bh_end_write(9) — the Kernel API Manual, bestie edition 🎀

okay so real talk, this is a page from the Kernel API Manual and it's about bh_end_write, the I/O end handler for writes. yes it's short. no we're not skipping anything. let's go ✨

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🌸 NAME 🌸

bh_end_write — the I/O end handler for writes, periodt 💖

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🦋 SYNOPSIS 🦋

void bh_end_write (struct bio *bio );

that's it. that's the whole signature. she's giving minimalist icon 💅

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✨ ARGUMENTS ✨

• bio — the bio that's being completed. that's the one, that's the whole vibe check 🫶

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👑 DESCRIPTION 👑

okay so here's the tea ☕ — you pass this function to bh_submit if you're writing from the buffer, unless you need your own special I/O end handler. like, if you've got custom end-handler energy, go off, do your own thing, main character behavior only 👑 but if you don't? this is the one. she handles the end of your write for you, no cap 🌈

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💜 SEE ALSO 💜

the whole friend group, in the order the page gives them, and yes i'm listing every single one because we don't do half-finished here 🙈

Kernel file ./fs/buffer.c:

• bio_endio_bh(9)
• end_buffer_read_sync(9)
• bh_end_read(9)
• bh_end_async_write(9)
• mmb_sync(9)
• block_dirty_folio(9)
• mark_buffer_dirty(9)
• __brelse(9)
• __bforget(9)
• bh_submit(9)
• bdev_getblk(9)
• __bread_gfp(9)
• block_invalidate_folio(9)
• clean_bdev_aliases(9)
• try_to_free_buffers(9)
• bh_uptodate_or_lock(9)
• __bh_read(9)
• __bh_read_batch(9)

like, the whole squad showed up to the function-call party 🎉 iykyk 🧚

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ngl this one's a short read, bestie — but that just means there's no excuse not to remember it 💀

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and that's the page!! 🍓 brought to you by the ./fs corner of the kernel, dated October 2026, and it's literally giving licensed-manual-page realness — go read the other ones too, mwah 💋💖⭐