is_lazy_mmu_mode_active(9)

✨ is_lazy_mmu_mode_active ✨

hey bestie, welcome to the Kernel API Manual 💅 this one's a tiny little function but she's got opinions, okay? let's get into it 🫶

---

🌸 NAME 🌸

is_lazy_mmu_mode_active — literally just checks if we're currently in lazy MMU mode rn. that's the whole vibe check 🔥

---

🦋 SYNOPSIS 🦋

bool is_lazy_mmu_mode_active (void );

---

🎀 ARGUMENTS 🎀

• void — no arguments, bestie. none. zero. she takes nothing and she gives you a bool. iconic behavior honestly ✨

---

💖 DESCRIPTION 💖

okay so the tea ☕ — this function tests whether the current context is in lazy MMU mode. and she only says true if both of these things are true:

1. we are not in interrupt context 🙅‍♀️
2. lazy MMU mode is active for the current task 💫

like, both boxes gotta be ticked. no shortcuts, no partial credit. it's giving "all conditions must pass" energy 😭

🌈 important note, bestie, do NOT skip this one: this function is intended for architectures that implement the lazy MMU mode, and it must not be called from generic code. like, that's not a suggestion, that's the rule. periodt. 👑

---

🔥 SEE ALSO 🔥

• Kernel file ./include/linux/sched.h struct prev_cputime(9)
• __task_lazy_mmu_mode_active(9)
• set_cpus_allowed_ptr(9)
• task_nice(9)
• is_idle_task(9)

---

and that's the whole page, bestie 💜 she lives in ./include/linux, dated October 2026, and honestly? short, sweet, and absolutely ate. iykyk 🧚‍♀️✨🎀🍓