bfq_updated_next_req(9)

💅 bfq_updated_next_req(9) — Kernel API Manual 💅

💖 NAME 💖

bfq_updated_next_req — update the queue after a new next_rq selection. ✨

✨ SYNOPSIS ✨

void bfq_updated_next_req (struct bfq_data *bfqd , struct bfq_queue
*bfqq );

okay so it’s a void function, bestie — no return value to obsess over, just queue-update main character energy 💫

🎀 ARGUMENTS 🎀

• bfqd — the device data the queue belongs to. 🖥️💖
• bfqq — the queue to update. 🎀

🦋 DESCRIPTION 🦋

Okay so here’s the tea ☕: if the first request of a queue changes, we make sure that the queue has enough budget to serve at least its first request — specifically if the request has grown. 📈✨

We do this because if the queue has not enough budget for its first request, it has to go through two dispatch rounds to actually get it dispatched. 😭 no cap, that’s the whole reason — the queue needs its budget moment so its first request can actually get dispatched without the whole two-round situation. 💅

🌈 SEE ALSO 🌈

• Kernel file ./block/bfq-iosched.c
• icq_to_bic(9)
• bfq_bic_lookup(9)
• __bfq_bfqq_recalc_budget(9)
• bfq_bfqq_expire(9)

okay bye bestie 🫶 this page lives in ./block, dated October 2026, and the footer cutie is literally bfq_updated_next_req(9) again — iconic, no notes 💅✨