blk_queue_enter(9)

✨ NAME ✨

blk_queue_enter — try to increase q->q_usage_counter 💖

okay so this is from the Kernel API Manual, and bestie, the whole assignment is literally “try to increase q->q_usage_counter.” main character counter energy, no cap ✨

🎀 SYNOPSIS 🎀

int blk_queue_enter (struct request_queue *q , blk_mq_req_flags_t flags
);

💅 ARGUMENTS 💅

• q — request queue pointer 🫶 like, the queue’s own little pointer, periodt.
• flags — BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PM 🌸 yes, “and/or,” keep it exactly like that.

🌈 SEE ALSO 🌈

Kernel file ./block/blk-core.c is where the whole friend group lives, and these are all invited to the group chat:

• blk_queue_flag_set(9)
• blk_queue_flag_clear(9)
• blk_op_str(9)
• blk_sync_queue(9)
• blk_set_pm_only(9)
• blk_put_queue(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)

okay that’s the whole vibe, bestie — this page is brought to you by the ./block source tree, dated October 2026, and filed under blk_queue_enter(9) 🫶💖✨