blk_rq_unprep_clone(9)

💅 blk_rq_unprep_clone 💅

okay so this is a page from the Kernel API Manual (that's the manual name, bestie, blk_rq_unprep_clone(9) is the whole vibe) — and honestly? it's a short one. a little cleanup baddie. the closer. the "you had your fun, now let's put the bios back" moment. iconic behaviour, no notes 🎀

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✨ NAME ✨

blk_rq_unprep_clone — a helper function whose whole job is freeing all the bios in a cloned request 🦋

🌸 SYNOPSIS 🌸

void blk_rq_unprep_clone (struct request *rq );

like, that's it. that's the whole signature. short king 👑

💖 ARGUMENTS 💖

• rq — the clone request that's getting cleaned up. she's the one being tidied. the clone in question 🫶

⭐ DESCRIPTION ⭐

so what does it actually do? it frees all the bios in rq — but specifically for a cloned request. that's the whole thing. that's the assignment. free the bios, free the bios, free the bios 💅

think of it as the counterpart energy to prepping a clone: you built it up, now you tear it down, and this function is the tear-down. very main character cleanup arc ✨

ngl there is not a lot more to say here — the original page is genuinely this short. no hidden options, no environment variables, no exit statuses. just a tidy little free-all-the-bios helper 🌸

🔥 SEE ALSO 🔥

okay this is where she gets social. extremely well-connected function. the whole squad:

• Kernel file ./block/blk-mq.c
• blk_mq_wait_quiesce_done(9)
• blk_mq_quiesce_queue(9)
• blk_update_request(9)
• blk_mq_complete_request(9)
• blk_mq_start_request(9)
• blk_execute_rq_nowait(9)
• blk_execute_rq(9)
• blk_mq_delay_run_hw_queue(9)
• blk_mq_run_hw_queue(9)
• blk_mq_run_hw_queues(9)
• blk_mq_delay_run_hw_queues(9)
• blk_mq_request_bypass_insert(9)
• blk_mq_try_issue_directly(9)
• blk_mq_submit_bio(9)
• blk_insert_cloned_request(9)
• blk_rq_prep_clone(9)
• blk_mq_destroy_queue(9)

go read blk_rq_prep_clone(9) right after this one if you want the full story, iykyk 👀

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and that's the whole page, bestie 💜 you came, you read about freeing bios from a cloned request, you slayed. this cutie lives at ./block and the version/date stamp on it says October 2026 — so yeah, she's from the future, and she's still just freeing bios. periodt. 🌈⭐🍓