clean_record_pte(9)

💅 clean_record_pte(9) — Kernel API Manual 💅

🌸 NAME 🌸

• clean_record_pte — Clean a pte and record its address space offset in a bitmap

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✨ SYNOPSIS ✨

okay so the signature is literally this, bestie:

int clean_record_pte (pte_t *pte , unsigned long addr , unsigned long
       end , struct mm_walk *walk );

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🎀 ARGUMENTS 🎀

• pte — Pointer to the pte
• addr — The start of virtual address to be clean
• end — The end of virtual address to be clean
• walk — pagetable walk callback argument

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🦋 DESCRIPTION 🦋

The function cleans a pte and records the range in virtual address space of touched ptes for efficient TLB flushes. No cap, that tracking is the whole vibe. 💅

It also records dirty ptes in a bitmap representing page offsets in the address_space, as well as the first and last of the bits touched. Iconic bookkeeping behavior, honestly. ✨

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🔥 SEE ALSO 🔥

• Kernel file ./mm/mapping_dirty_helpers.c
• struct wp_walk(9)
• wp_pte(9)
• struct clean_walk(9)
• wp_shared_mapping_range(9)
• clean_record_shared_mapping_range(9)

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That’s the whole clean_record_pte(9) page, bestie — source/version ./mm, dated October 2026. Catch u later, fr fr 🫶💖✨