migrate_device_pages(9)

💖 NAME 💖

okay bestie, welcome to migrate_device_pages(9) from the Kernel API Manual — this one is literally about migrating meta-data from the src page to the dst page. no cap, that's the name vibe 🎀

✨ SYNOPSIS ✨

void migrate_device_pages (unsigned long *src_pfns , unsigned long
       *dst_pfns , unsigned long npages );

🎀 ARGUMENTS 🎀

• src_pfns — src_pfns returned from migrate_device_range. yes, that exact one 🫶
• dst_pfns — array of pfns allocated by the driver to migrate memory to. the driver's little destination lineup ✨
• npages — number of pages in the range. count 'em, bestie 🔢

🦋 DESCRIPTION 🦋

Equivalent to migrate_vma_pages. This is called to migrate struct page meta-data from source struct page to destination. that's the tea ☕ — the meta-data moves from source to destination 💅

🌸 SEE ALSO 🌸

Kernel file ./mm/migrate_device.c plus these iconic cross-refs, same order:

• migrate_vma_split_folio(9)
• migrate_vma_setup(9)
• migrate_vma_insert_huge_pmd_page(9)
• migrate_vma_pages(9)
• migrate_vma_finalize(9)
• migrate_device_range(9)
• migrate_device_pfns(9)

cute sign-off time: source/version ./mm, date October 2026, page migrate_device_pages(9) — bye bestie, go migrate that meta-data 💅🫶