blk_mq_run_hw_queue(9)

📦 version 7.3.1, in nixpkgs unstable

💖 blk_mq_run_hw_queue — literally the "go go go" button for a hardware queue

okay bestie so this is blk_mq_run_hw_queue(9) from the Kernel API Manual, and it's basically the moment a hardware queue gets told to wake up and do its job 💅

✨ SYNOPSIS ✨

void blk_mq_run_hw_queue (struct blk_mq_hw_ctx *hctx , bool async );

like that's it, that's the whole vibe — no return value, she just does it 🫶

🎀 ARGUMENTS 🎀

  • hctx — pointer to the hardware queue you want to run. she's the main character here 👑
  • async — a bool that says whether we wanna run the queue asynchronously. yep, that's the whole personality of this flag 🦋

🌸 DESCRIPTION 🌸

so here's the tea ☕ — this function first checks two things:

  • is the request queue not in a quiesced state? 👀
  • are there actually pending requests waiting to be sent? 📬

and if both of those are true, then she runs the queue and sends those requests off to the hardware. slay, that's it, no cap ✨

like, she's not out here running queues for fun — she checks first. vibe check passed → hardware gets fed 🔥

ngl it's giving "responsible friend who makes sure everyone's actually ready before we leave the group chat" 😭💜

🦋 SEE ALSO 🦋

the kernel file lives at ./block/blk-mq.c btw, and here's the whole friend group you should also go say hi to:

okay so that's the whole page bestie, ily, go run some hardware queues responsibly 💖✨

🌈 sign-off szn: this icon lives in ./block, dated October 2026, and answers to the name blk_mq_run_hw_queue(9) — periodt 💅🎀
📦 where this page comes from