vma_filebacked_address(9)

💅 NAME 💅

okay so this is the Kernel API Manual entry for vma_filebacked_address(9), and it's literally here to find the virtual address a file-backed page range is mapped at. bestie, that's the whole vibe ✨

🎀 SYNOPSIS 🎀

unsigned long vma_filebacked_address (const struct vm_area_struct *vma , pgoff_t pgoff , unsigned long nr_pages );

🌸 ARGUMENTS 🌸

• vma — the vma which maps this object. it's giving “main character struct” 👑
• pgoff — the page offset within its object. lowkey just the page's little coordinate 🦋
• nr_pages — the number of pages to consider. like, how many pages are we checking, bestie? 💅

⭐ RETURN ⭐

if any page in this range is mapped by this VMA, you get the first address where any of these pages appear. periodt. 💖

otherwise? return -EFAULT. yep, that's the fallback, no cap 😭

🦋 SEE ALSO 🦋

• Kernel file ./mm/internal.h
• folio_pte_batch_flags(9)
• pte_move_swp_offset(9)
• pte_next_swp_offset(9)
• swap_pte_batch(9)
• sync_with_folio_pmd_zap(9)
• folio_evictable(9)
• vma_anon_address(9)

these are the linked besties, iykyk 🌈

and that's the page, bestie 🫶 it's sourced from ./mm, dated October 2026, and it's the vma_filebacked_address(9) manual page. slay 💅✨