mt_calc_adistance(9)

🌸 mt_calc_adistance(9) — Kernel API Manual era 🌸

okay so bestie, welcome to the mt_calc_adistance(9) page from the Kernel API Manual — it's literally all about calculating abstract distance with registered algorithms, and it's lowkey iconic. no cap 💅

---

✨ NAME ✨

mt_calc_adistance — Calculate abstract distance with registered algorithms

---

💖 SYNOPSIS 💖

int mt_calc_adistance (int node , int *adist );

---

🎀 ARGUMENTS 🎀

• node — the node to calculate abstract distance for
• adist — the returned abstract distance

---

🔥 RETURN 🔥

if return_value & NOTIFY_STOP_MASK != 0, then some abstract distance algorithm provides the result, and return it via adist. Otherwise, no algorithm can provide the result and adist will be kept as it is. periodt 💅

---

🦋 SEE ALSO 🦋

Kernel file ./mm/memory-tiers.c — plus these cuties: folio_use_access_time(9), next_demotion_node(9), register_mt_adistance_algorithm(9), and unregister_mt_adistance_algorithm(9) 💖

---

sign-off vibes: this one lives in ./mm, dated October 2026, and it's the mt_calc_adistance(9) page — slay, bye bestie 🫶✨