scx_bpf_dsq_insert_vtime(9)

💅 scx_bpf_dsq_insert_vtime(9) — the Kernel API Manual, bestie edition 🎀

okay so you're in the Kernel API Manual and the star of the show is scx_bpf_dsq_insert_vtime ✨ no cap, it's a whole vibe.

---

🌸 NAME 🌸

scx_bpf_dsq_insert_vtime — put a task into the vtime priority queue of a DSQ 💅

---

✨ SYNOPSIS ✨

bool scx_bpf_dsq_insert_vtime (struct task_struct *p , u64 dsq_id , u64
slice , u64 vtime , u64 enq_flags );

it's giving "returns a bool, takes five args, knows exactly what it wants" 🔥

---

🫶 ARGUMENTS 🫶

• p — the task_struct you're inserting. this is the main character of the operation, lowkey 🫶
• dsq_id — which DSQ you're inserting into, iykyk
• slice — how long p can run for, in nsecs. pass 0 to keep the current value (yes, the vibes are preserved automatically 💖)
• vtime — p's ordering inside the vtime-sorted queue of the target DSQ. this is literally the whole personality of the queue ⭐
• enq_flags — SCX_ENQ_* flags. them. that's it. that's the flag set 🌈

---

🦋 DESCRIPTION 🦋

so here's the tea ☕️: this one is an inline wrapper. it packs all those scalar arguments into a struct and then calls __scx_bpf_dsq_insert_vtime. it's basically the cute little front desk that hands your args off to the real one 🧚

want the details? go read __scx_bpf_dsq_insert_vtime, because that's where the actual lore lives 📖

fr fr, this function is a wrapper — don't come for it looking for the deep behavior, it just packs and forwards 💀

---

👑 SEE ALSO 👑

• Kernel file ./tools/sched_ext/include/scx/compat.bpf.h 🍓
• __COMPAT_is_enq_cpu_selected(9)
• scx_bpf_select_cpu_and(9)

---

and that's the post 🎀 slay, go insert some tasks ✨

💜 source: ./tools/sched_ext/include/scx — dated October 2026 — mwah, thanks for reading bestie 💜