detach_entity_load_avg(9)

💖 NAME 💖

Okay bestie, welcome to the detach_entity_load_avg(9) page from the Kernel API Manual ✨. Short version: detach_entity_load_avg detaches this entity from its cfs_rq load avg. That's the whole assignment, and it ate 💅.

🌸 SYNOPSIS 🌸

void detach_entity_load_avg (struct cfs_rq *cfs_rq , struct sched_entity
       *se );

So it's giving void, with a struct cfs_rq *cfs_rq and a struct sched_entity *se in the group chat. Slay.

🎀 ARGUMENTS 🎀

• cfs_rq — the cfs_rq to detach from, periodt.
• se — the sched_entity to detach, no cap.

🔥 DESCRIPTION 🔥

Okay so the one thing you literally cannot skip: you must call update_cfs_rq_load_avg before this. Why? Because this function relies on cfs_rq->avg.last_update_time being current. Not current = not the vibe 😭.

Bestie, this is a hard requirement, not a suggestion. Call update_cfs_rq_load_avg first, fr fr.

🦋 SEE ALSO 🦋

The kernel file is ./kernel/sched/fair.c — that's where the lore lives 👑

• update_tg_load_avg(9)
• update_cfs_rq_load_avg(9)
• attach_entity_load_avg(9)
• cpu_util(9)
• sched_use_asym_prio(9)
• sched_group_asym(9)
• update_sg_lb_stats(9)
• update_sd_pick_busiest(9)
• idle_cpu_without(9)
• update_sd_lb_stats(9)
• calculate_imbalance(9)
• sched_balance_find_src_group(9)

That's the whole page, bestie. Source/version: ./kernel/sched; date: October 2026; page: detach_entity_load_avg(9) and it's from the Kernel API Manual. Byeee, go detach responsibly 🫶💜