scx_punt_task(9)

✨ NAME ✨

bestie, this is the Kernel API Manual page for scx_punt_task — it hands a task to a failed sched without initialization 💅 the manual name is scx_punt_task(9), and yes, we're getting into it 🫶

🌸 SYNOPSIS 🌸

void scx_punt_task (struct scx_sched *to , struct task_struct *p );

🎀 ARGUMENTS 🎀

• to — the failed and bypassed sched taking custody of p 😭
• p — the task to punt 🦋

💖 DESCRIPTION 💖

Okay so picture this: you take p off its current sched and put it on to at SCX_TASK_NONE ✨ to is dying, and its teardown will re-home p properly — periodt.

You use this when to must take over p but failed to initialize it. Bypass keeps scheduling decisions away from to, but p can still trigger its task ops, which may confuse the BPF side 🙈 to is dying anyway, so yeah.

The exit paths skip NONE tasks (see __scx_disable_and_exit_task and switched_from_scx) — lowkey important, bestie ⭐

🌈 SEE ALSO 🌈

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)
• queue_sync_ecaps(9)
• scx_process_sync_ecaps(9)
• scx_unbypass_replay_ecaps(9)
• scx_discard_stale_ecaps_syncs(9)
• scx_rehome_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)

source/version: ./kernel/sched/ext · date: October 2026 · page: scx_punt_task(9) — byeee, mwah 💋✨