throtl_log(9)

💖 throtl_log(9) 💖

okay so this is from the Kernel API Manual, bestie — section 9 energy, iykyk — and we are folding the manual name in right here instead of copying the header line. it's giving debug-message-via-blktrace realness and I'm obsessed. ✨

🌸 NAME 🌸

throtl_log — log a debug message via blktrace. 💅

✨ SYNOPSIS ✨

throtl_log (sq , fmt , args... );

🎀 ARGUMENTS 🎀

• sq — the service_queue being reported 🫶
• fmt — the printf format string 🎀
• args — the printf args 💬

💅 DESCRIPTION 💅

the messages are prefixed with "throtl BLKG_NAME" if sq belongs to a throtl_grp; otherwise, just "throtl". that's the whole tea, bestie — no cap. 🍓

🦋 SEE ALSO 🦋

Kernel file ./block/blk-throttle.c has the whole friend group, and you can also peek at:

• sq_to_tg(9)
• sq_to_td(9)
• throtl_qnode_add_bio(9)
• throtl_peek_queued(9)
• throtl_pop_queued(9)
• throtl_schedule_next_dispatch(9)
• throtl_add_bio_tg(9)
• throtl_pending_timer_fn(9)
• blk_throtl_dispatch_work_fn(9)

mwah 💋 this cutie comes from ./block, dated October 2026, and it's throtl_log(9) — bye bestie, slay your debug logs 🫶✨