blk_op_str(9)

🦋 blk_op_str(9) — a Kernel API Manual moment, no cap 💅

okay so bestie, this is the page for blk_op_str(9) from the Kernel API Manual, and it's literally the translator that turns request operations into their cute little string names. 🎀

✨ NAME ✨

blk_op_str — return the string "name" for an operation REQ_OP_name. periodt. 💖

🌸 SYNOPSIS 🌸

const char * blk_op_str (enum req_op op );

🎀 ARGUMENTS 🎀

• op — a request operation. that's the input, bestie, and it's giving very important parameter energy. ✨

💖 DESCRIPTION 💖

Convert a request operation REQ_OP_name into the string "name". useful for debugging and tracing BIOs and requests — like, when you need the operation to spill its name for debugging or tracing BIOs and requests, this is the function. 🫶

For an invalid request operation code, the string "UNKNOWN" is returned. so if the code isn't giving valid request operation, you get "UNKNOWN" — iconic fallback behavior, honestly. 💀

👑 SEE ALSO 👑

Kernel file ./block/blk-core.c — plus these besties:

• blk_queue_flag_set(9)
• blk_queue_flag_clear(9)
• blk_sync_queue(9)
• blk_set_pm_only(9)
• blk_put_queue(9)
• blk_queue_enter(9)
• blk_get_queue(9)
• submit_bio_noacct(9)
• submit_bio(9)
• bio_poll(9)
• bio_start_io_acct(9)
• blk_lld_busy(9)
• blk_start_plug(9)
• blk_finish_plug(9)

mwah 💋 — this page's source/version is ./block, dated October 2026, and it's blk_op_str(9), so yeah, she ate. 🎀✨