blk_crypto_rq_bio_prep(9)

💅 blk_crypto_rq_bio_prep(9) — Kernel API Manual, section 9 💅

okay so bestie, this is the Kernel API Manual page for blk_crypto_rq_bio_prep(9), and it's giving "tiny helper function with one very specific job" energy. Let's get into it ✨

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🌸 NAME 🌸

blk_crypto_rq_bio_prep — Prepare a request's crypt_ctx when its first bio is inserted

Like, literally that's the whole vibe: it gets the request's crypt_ctx ready at the exact moment its first bio gets inserted. No cap. 🫶

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🎀 SYNOPSIS 🎀

int blk_crypto_rq_bio_prep (struct request *rq , struct bio *bio , gfp_t
gfp_mask );

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🦋 ARGUMENTS 🦋

• rq — The request to prepare. This is the main character request you're getting ready 💅
• bio — The first bio being inserted into the request. First one in, bestie 🌟
• gfp_mask — Memory allocation flags. The allocation vibes, basically.

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🔥 RETURN 🔥

Returns 0 on success, and -ENOMEM if out of memory.

Heads up, bestie: -ENOMEM is only possible if gfp_mask doesn't include __GFP_DIRECT_RECLAIM. That's the fine print and we respect the fine print 💀

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💜 SEE ALSO 💜

• Kernel file ./block/blk-crypto-internal.h

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xoxo, your manpage bestie 💖 — this one comes from source/version ./block, dated October 2026. Slay. 🎀✨