trace_block_rq_merge(9)

📦 version 7.3.1, in nixpkgs unstable

💫 trace_block_rq_merge(9) 💫

okay so this is a page straight out of the Kernel API Manual (yes, that Kernel API Manual, the 9th-section one 🎀) and today's main character is trace_block_rq_merge. she's a tracepoint, she's lowkey iconic, and she's here to tell you about requests getting merged 💅

✨ NAME ✨

trace_block_rq_merge — merge request with another one in the elevator 🛗💖

✨ SYNOPSIS ✨

void trace_block_rq_merge (struct request *rq );

✨ ARGUMENTS ✨

  • rq — the block IO operation request 🫶 (like, the actual request, not a vibe. she's a struct request *, periodt.)

✨ DESCRIPTION ✨

so here's the tea ☕ — this one gets called when the block operation request rq, coming from queue q, gets merged into another request that's already queued up in the elevator 🛗✨

that's it. that's the whole moment. one request sliding into another one's queue like "hey bestie, room for one more?" 😭💖 and trace_block_rq_merge is right there documenting it for the trace, no cap.

ngl this is a tracepoint, so it's not out here doing the merging — she's the one taking notes when the merge happens 📝👑

✨ SEE ALSO ✨

the kernel file ./include/trace/events/block.h is where all of this lives, and the whole friend group is:

like, the entire group chat 💬🦋 go say hi to all of them fr fr.

✨ cute sign-off time ✨

this little masterpiece was served fresh from ./include/trace/events 🌸, dated October 2026 🎀, and it's trace_block_rq_merge(9) forever and always 💜 bye bestie, go merge responsibly 🫶💅

📦 where this page comes from