blk_mq_run_hw_queues(9)

💖 blk_mq_run_hw_queues 💖

okay so bestie, welcome to the Kernel API Manual — yes, the actual kernel, the big one, and today's main character is blk_mq_run_hw_queues. literally the function that goes "hey, all of you hardware queues? run. now." 👑

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✨ NAME ✨

blk_mq_run_hw_queues — Run all hardware queues in a request queue.

like. ALL of them. not a vibe check on one queue, the whole squad. 🫶

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🌸 SYNOPSIS 🌸

void blk_mq_run_hw_queues (struct request_queue *q , bool async );

no cap, that's the whole signature. void means it doesn't hand anything back — it just does the thing and ghosts. 💅

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🦋 ARGUMENTS 🦋

• q — Pointer to the request queue to run. this is the queue bestie, the one we're waking up. so iconic of it.
• async — If we want to run the queue asynchronously. yes ma'am, bool — so it's true (do it async, don't wait around) or false (you're waiting, babe). pick your fighter. ✨

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🎀 SEE ALSO 🎀

the whole friend group, fr fr — go read these next, iykwup:

• 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_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_unprep_clone(9)
• blk_rq_prep_clone(9)
• blk_mq_destroy_queue(9)

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heads up babe: blk_mq_destroy_queue(9) is right there at the end of that list and it is giving "the finale." read up before you go doing anything dramatic. 💀

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mwah, that's the page 🍓 source is ./block and it's dated October 2026 — put it in your calendar, screenshot it, whatever, just don't lose it. ily, go run those queues 💜🧚‍♀️