replace_page(9)

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual — we're looking at replace_page(9), and honestly it's giving "short king with a very specific job." 💅

The official vibe is: replace page in vma by new ksm page. That's the whole name, no cap. ✨

✨ SYNOPSIS ✨

int replace_page (struct vm_area_struct *vma , struct page *page ,
       struct page *kpage , pte_t orig_pte );

🎀 ARGUMENTS 🎀

• vma — the vma that holds the pte pointing to page. She's the container, the context, the main character holding the pointer energy. 🫶
• page — the page we are replacing by kpage. Literally the one getting swapped out, no drama. 💀
• kpage — the ksm page we replace page by. The new bestie stepping in. 👑
• orig_pte — the original value of the pte. Keep it exactly as-is, bestie; we don't invent pte lore here. 🎀

💖 DESCRIPTION 💖

The return situation is super straightforward: it returns 0 on success, and -EFAULT on failure. That's it. That's the vibe check. 🌈

bestie, those are the only return values listed here — 0 for success, -EFAULT for failure. Don't go adding extra lore, iykyk. 😭

🦋 SEE ALSO 🦋

Go peek at these related icons when you're done slaying this page:

• Kernel file ./mm/ksm.c
• Overview(9)
• struct ksm_mm_slot(9)
• struct ksm_scan(9)
• struct ksm_stable_node(9)
• struct ksm_rmap_item(9)
• struct advisor_ctx(9)
• ksm_do_scan(9)
• ksm_vma_flags(9)
• ksm_enable_merge_any(9)
• ksm_disable_merge_any(9)

mwah 💋 and that's the cute little sign-off: this page's source/version is ./mm, dated October 2026, and it's still our girl replace_page(9). bye bestie, go read those SEE ALSOs fr fr 🦋💖