lazy_mmu_mode_disable(9)

💅 lazy_mmu_mode_disable(9) — the Kernel API Manual moment 🎀

okay so bestie, welcome to lazy_mmu_mode_disable(9) ✨ this is the page from the Kernel API Manual, and honestly? it's giving "closing the group chat" energy. let's get into it 🫶

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✨ NAME ✨

lazy_mmu_mode_disable — literally just disables the lazy MMU mode 💅 no cap, that's the whole vibe.

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🌸 SYNOPSIS 🌸

void lazy_mmu_mode_disable (void );

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🦋 ARGUMENTS 🦋

• void — no arguments. nothing. zero. the void is voiding 🙈 you don't pass it anything, periodt.

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🔥 DESCRIPTION 🔥

okay so what this actually does 👑 it exits the current lazy MMU mode section. think of it like leaving the chat 🫶

if this is the outermost section — like the main character leaving the party — it disables the mode and calls arch_leave_lazy_mmu_mode. iconic. 💖

otherwise, if you're in a nested section (yes bestie, sections can nest, it's that kind of function), it calls arch_flush_lazy_mmu_mode instead.

🚨 must match a call to lazy_mmu_mode_enable 🚨 like fr fr, these two are a matched set. don't leave them in a situationship where one exists without the other.

and here's the part you cannot skip 😭 it has no effect if you call it:

• While paused — see lazy_mmu_mode_pause 💀
• In interrupt context ⚡

so yeah. no effect. nothing happens. it's just standing there, looking cute, doing absolutely nothing for you 🙈

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⭐ SEE ALSO ⭐

the whole friend group, in the order they appear 🎀 from the Kernel file ./include/linux/pgtable.h:

• lazy_mmu_mode_enable(9)
• __task_lazy_mmu_mode_pause(9)
• lazy_mmu_mode_pause(9)
• __task_lazy_mmu_mode_resume(9)
• lazy_mmu_mode_resume(9)
• pte_batch_hint(9)
• set_ptes(9)
• clear_young_dirty_ptes(9)
• get_and_clear_full_ptes(9)
• get_and_clear_ptes(9)
• clear_full_ptes(9)
• clear_ptes(9)
• clear_nonpresent_ptes(9)
• ptep_try_set(9)
• flush_tlb_before_set(9)
• wrprotect_ptes(9)
• clear_flush_young_ptes(9)
• test_and_clear_young_ptes(9)
• modify_prot_start_ptes(9)
• modify_prot_commit_ptes(9)
• pfnmap_setup_cachemode(9)
• pfnmap_track(9)
• pfnmap_untrack(9)
• pfnmap_setup_cachemode_pfn(9)

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anyway that's the whole page bestie, you ate that 🍓 this one's coming at you from ./include/linux (the source), and it's stamped October 2026 in the manual — so it's dated, it's cute, and it's lazy_mmu_mode_disable(9) all the way down 💜 mwah 🧚