bfq_forget_idle(9)

💅 bfq_forget_idle(9) — a Kernel API Manual moment ✨

Okay bestie, we are literally in the Kernel API Manual right now, and this page is about bfq_forget_idle. Let’s get into it 🎀

🎀 NAME 🎀

bfq_forget_idle — update the idle tree if necessary.

✨ SYNOPSIS ✨

void bfq_forget_idle (struct bfq_service_tree *st );

🫶 ARGUMENTS 🫶

• st — the service tree to act upon. That’s the tree we’re doing the acting on, periodt.

💖 DESCRIPTION 💖

Okay so the whole point: to preserve the global O(log N) complexity, we only remove one entry here; since the idle tree will not grow indefinitely, this can be done safely. That’s the vibe 🦋

🌈 SEE ALSO 🌈

Kernel file: ./block/bfq-wf2q.c — and the related API crowd is:

• bfq_gt(9), bfq_update_next_in_service(9)
• bfq_delta(9), bfq_calc_finish(9), bfq_entity_of(9), bfq_extract(9)
• bfq_idle_extract(9), bfq_insert(9), bfq_update_min(9)
• bfq_update_active_node(9), bfq_update_active_tree(9)
• bfq_active_insert(9), bfq_ioprio_to_weight(9), bfq_weight_to_ioprio(9)
• bfq_find_deepest(9), bfq_active_extract(9), bfq_idle_insert(9)
• bfq_forget_entity(9), bfq_put_idle_entity(9), bfq_bfqq_served(9)
• bfq_bfqq_charge_time(9), __bfq_activate_entity(9)
• __bfq_requeue_entity(9), bfq_activate_requeue_entity(9)
• __bfq_deactivate_entity(9), bfq_deactivate_entity(9)
• bfq_calc_vtime_jump(9), bfq_first_active_entity(9)
• __bfq_lookup_next_entity(9), bfq_lookup_next_entity(9)

Cute sign-off time 💋: the source/version is ./block, and this page is dated October 2026 — mwah, bestie 🫶✨