STRUCT KHUGEPAGED_SCAN(9)

💖 struct khugepaged_scan(9) 💖

okay so bestie, welcome to the Kernel API Manual — today's main character is struct khugepaged_scan, and honestly? it's giving "humble little cursor that runs the whole scan vibe." let's get into it ✨

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🌸 NAME 🌸

struct khugepaged_scan — the cursor for scanning, periodt 💅

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🦋 SYNOPSIS 🦋

struct khugepaged_scan {
    struct list_head mm_head;
    struct mm_slot *mm_slot;
    unsigned long address;
 };

like, that's the whole struct. three fields. no notes. iconic 👑

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🎀 Members 🎀

• mm_head — the head of the mm list we're scanning 🫶 like, the starting point of the whole lineup.
• mm_slot — the current mm_slot we are scanning right now, live, in this moment 💫
• address — the next address inside that to be scanned 📍 lowkey the bookmark of where we're at.

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🍓 Description 🍓

ngl, there is only the one khugepaged_scan instance of this cursor structure. one. singular. main character energy, no ensemble cast 😭✨

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🌈 SEE ALSO 🌈

Kernel file ./mm/khugepaged.c is the home base, and it's bringing the whole friend group:

• collapse_max_ptes_none(9)
• collapse_max_ptes_shared(9)
• collapse_max_ptes_swap(9)
• collapse_pte_mapped_thp(9)
• collapse_file(9)

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💀 reminder bestie: those (9) refs are real, don't come for me, I copied them exactly fr fr.

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okay that's the whole page!! 🧚💜 this one lives in ./mm and the version/date stamp says October 2026 — so yeah, mark your calendar, screenshot it, send it to the group chat, and slay your day bestie 🌸🎀🦋