iopt_area_remove_access(9)

📦 version 7.3.1, in nixpkgs unstable

💖 iopt_area_remove_access(9) 💖

okay bestie, welcome to the Kernel API Manual — this page is literally all about iopt_area_remove_access, the cleanup bestie for in-kernel PFN access. 🫶

🌸 NAME 🌸

iopt_area_remove_access — release an in-kernel access for PFNs. periodt. 💅

✨ SYNOPSIS ✨

       void iopt_area_remove_access (struct iopt_area *area , unsigned long
       start_index , unsigned long last_index , bool unlock_area );

🎀 ARGUMENTS 🎀

  • area — the source of PFNs. It's giving "where the pages come from." ✨
  • start_index — first page index. iconic starting point, no cap.
  • last_index — inclusive last page index. yes, inclusive — don't forget that part bestie 😭
  • unlock_area — must match the matching iopt_area_add_access's lock_area. they gotta be twinning fr fr 🫶

💅 DESCRIPTION 💅

This undoes iopt_area_add_access and unpins the pages if necessary. it's the "okay we're done here" of the access world. 🦋

⚠️ bestie, the caller must stop using the PFNs before calling this. Not after, not "oops I forgor" — before. 😭💀

🔥 SEE ALSO 🔥

Kernel file ./drivers/iommu/iommufd/pages.c — yes, that's the spot. Also see all the friends:

mwah 💋 this little page comes from source/version ./drivers/iommu/iommufd, dated October 2026. catch you in the source, bestie 🎀✨

📦 where this page comes from