queue_sync_ecaps(9)

💅 queue_sync_ecaps — from the Kernel API Manual, bestie ✨

okay so picture this: it's giving kernel-internals, it's giving scheduler drama, and the manual you're holding is literally called Kernel API Manual and this page is queue_sync_ecaps(9). stay with me, it's actually so good.

---

🌸 NAME 🌸

queue_sync_ecaps — queue up an ecaps update for one specific (sch, cid) pair, bestie 🔥

---

🦋 SYNOPSIS 🦋

void queue_sync_ecaps (struct scx_sched *sch , s32 cid );

---

🎀 ARGUMENTS 🎀

• sch — the sched you wanna update, like literally the one 👑
• cid — the cid you wanna update. that's the one. periodt.

---

✨ DESCRIPTION ✨

So what it does: it queues an ecaps update for sch's cid, and then it kicks the cpu so the whole thing actually syncs in dispatch_one. no cap 💫

think of it as dropping the message in the group chat and then pinging everyone so they actually read it. same energy. 🫶

---

💜 SEE ALSO 💜

the whole friend group, fr fr — all of these live in the kernel file ./kernel/sched/ext/sub.c:

• scx_skip_subtree_pre(9)
• scx_next_descendant_pre(9)
• scx_rescue_charge(9)
• scx_rescue_end(9)
• scx_rescue_keep(9)
• scx_rescue_accrue(9)
• scx_rescue_admit(9)
• scx_rescue_try_admit(9)
• scx_rescue_check_overload(9)
• scx_rescue_timerfn(9)
• scx_resolve_local_dsq(9)
• scx_process_sync_ecaps(9)
• scx_unbypass_replay_ecaps(9)
• scx_discard_stale_ecaps_syncs(9)
• scx_rehome_task(9)
• scx_punt_task(9)
• scx_cgroup_claim_subtree(9)
• scx_cgroup_return_subtree(9)
• scx_cgroup_task_migrating(9)
• scx_cgroup_task_migrated(9)
• scx_cgroup_task_migrate_canceled(9)
• scx_bpf_sub_dispatch(9)
• scx_bpf_sub_grant(9)
• scx_bpf_sub_revoke(9)
• scx_bpf_sub_caps(9)
• scx_bpf_sub_kill_bstr(9)

---

💀 quick vibe check: this is a kernel page, so be normal about it in production. no notes. 🙈

okay that's the whole page, you ate that 🍓

mwah 💋 — this came out of ./kernel/sched/ext and it's dated October 2026, filed under queue_sync_ecaps(9). go slay, bestie 💅💖