bio_crypt_clone(9)

💖 NAME 💖

okay bestie, this is bio_crypt_clone(9) from the Kernel API Manual — yes, we're in kernel-API land and it's giving very specific little helper energy 💅

bio_crypt_clone — clone bio encryption context. That's the whole name, no cap.

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✨ SYNOPSIS ✨

int bio_crypt_clone (struct bio *dst , struct bio *src , gfp_t gfp_mask
       );

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🎀 ARGUMENTS 🎀

• dst — the destination bio, aka where the clone is headed 🫶
• src — the source bio, aka the one we're copying from 👀
• gfp_mask — the memory allocation flags, fr fr

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🌸 DESCRIPTION 🌸

If src has an encryption context, this function clones it to dst. That's it. That's the lore. iconic minimal behavior ✨

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🦋 RETURN 🦋

• 0 on success 🎉
• -ENOMEM if out of memory 😭

And listen bestie: -ENOMEM is only possible if gfp_mask doesn't include __GFP_DIRECT_RECLAIM — that's the exact caveat, don't forget it 💀

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👑 SEE ALSO 👑

go read these besties too:

• Kernel file ./include/linux/blk-crypto.h
• struct blk_crypto_config(9)
• struct blk_crypto_key(9)
• struct bio_crypt_ctx(9)
• blk_crypto_submit_bio(9)

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that's the whole page, bestie 💅 — source/version: ./include/linux, dated October 2026. byeee 🫶🌈