scx_bpf_destroy_dsq(9)

💅 scx_bpf_destroy_dsq(9) 💅

okay bestie, welcome to the Kernel API Manual entry for scx_bpf_destroy_dsq(9) — title AND manual name folded in, we’re being efficient 💖

🌸 NAME 🌸

scx_bpf_destroy_dsq — Destroy a custom DSQ ✨

🎀 SYNOPSIS 🎀

the signature, verbatim, no edits, no vibes-only shorthand:

__bpf_kfunc void scx_bpf_destroy_dsq (u64 dsq_id , const struct
       bpf_prog_aux *aux );

🦋 ARGUMENTS 🦋

• dsq_id — the DSQ to destroy 💅
• aux — the implicit BPF argument that gives access to bpf_prog_aux, hidden from BPF progs 👀

🔥 DESCRIPTION 🔥

Okay so scx_bpf_destroy_dsq is the kfunc that destroys the custom DSQ identified by dsq_id. It’s giving cleanup era, but only for DSQs that were created with scx_bpf_create_dsq — those are the only ones you can destroy, periodt.

⚠️ Big warning energy: the caller must ensure that the DSQ is empty and that no further tasks are dispatched to it. You cannot just yolo a destroy while tasks are still sliding in — that is not the vibe, bestie 😭

If you call it on a DSQ which doesn’t exist, it’s ignored — no dramatic error moment, just ignored. And yes, it can be called from any online scx_ops operations. Slay 💖

👀 SEE ALSO 👀

Kernel file ./kernel/sched/ext/ext.c, plus the whole linked-reference friend group:

• scx_is_descendant(9), rq_is_open(9), scx_fill_cmask_scratch(9), scx_call_op_set_cpumask(9), nldsq_next_task(9), nldsq_cursor_next_task(9)
• nldsq_cursor_lost_task(9), scx_task_iter_start(9), scx_task_iter_unlock(9), scx_task_iter_relock(9), scx_task_iter_stop(9), scx_task_iter_next(9)
• scx_task_iter_next_locked(9), scx_dump_event(9), wait_ops_state(9), scx_cpu_valid(9), schedule_deferred(9), schedule_deferred_locked(9)
• dsq_insert_head(9), set_task_slice_keep_oob(9), scx_task_slice_ended(9), move_remote_task_to_local_dsq(9), unlink_dsq_and_switch_rq_lock(9), move_task_between_dsqs(9)
• dispatch_to_local_dsq(9), finish_dispatch(9), scx_prio_less(9), __scx_init_task(9), task_dead_and_done(9), scx_tg_sched(9)
• scx_tg_knob_sched(9), handle_lockup(9), scx_rcu_cpu_stall(9), scx_softlockup(9), scx_hardlockup(9), unbypass_renotify_idle(9)
• scx_bypass(9), scx_propagate_exit_irq_workfn(9), scx_flush_disable_work(9), print_scx_info(9), scx_bpf_dsq_insert___v2(9), __scx_bpf_dsq_insert_vtime(9)
• scx_bpf_dispatch_nr_slots(9), scx_bpf_dispatch_cancel(9), scx_bpf_dsq_move_to_local___v2(9), scx_bpf_dsq_move_set_slice(9), scx_bpf_dsq_move_set_vtime(9), scx_bpf_dsq_move(9)
• scx_bpf_dsq_move_vtime(9), scx_bpf_reenqueue_local(9), scx_bpf_create_dsq(9), scx_bpf_task_set_slice(9), scx_bpf_task_set_dsq_vtime(9), scx_bpf_kick_cpu(9)
• scx_bpf_kick_cid(9), scx_bpf_dsq_nr_queued(9), bpf_iter_scx_dsq_new(9), bpf_iter_scx_dsq_next(9), bpf_iter_scx_dsq_destroy(9), scx_bpf_dsq_peek(9)
• scx_bpf_dsq_reenq(9), scx_bpf_reenqueue_local___v2(9), scx_bpf_exit_bstr(9), scx_bpf_error_bstr(9), scx_bpf_dump_bstr(9), scx_bpf_cpuperf_cap(9)
• scx_bpf_cidperf_cap(9), scx_bpf_cpuperf_cur(9), scx_bpf_cidperf_cur(9), scx_bpf_cpuperf_set(9), scx_bpf_cidperf_set(9), scx_bpf_nr_node_ids(9)
• scx_bpf_nr_cpu_ids(9), scx_bpf_nr_cids(9), scx_bpf_nr_online_cids(9), scx_bpf_online_cmask(9), scx_bpf_this_cid(9), scx_bpf_get_possible_cpumask(9)
• scx_bpf_get_online_cpumask(9), scx_bpf_put_cpumask(9), scx_bpf_task_running(9), scx_bpf_task_cpu(9), scx_bpf_task_cid(9), scx_bpf_locked_rq(9)
• scx_bpf_cpu_curr(9), scx_bpf_cid_curr(9), scx_bpf_tid_to_task(9), scx_bpf_now(9), scx_bpf_events(9), scx_bpf_task_cgroup(9)

xoxo, your local scx_bpf_destroy_dsq(9) hype girl 💖 — source/version: ./kernel/sched/ext, date: October 2026. Byeee 🫶