VM_INSERT_PFN(9)                    Memory Management in Linux                   VM_INSERT_PFN(9)



NAME
       vm_insert_pfn - insert single pfn into user vma

SYNOPSIS
       int vm_insert_pfn(struct vm_area_struct * vma, unsigned long addr, unsigned long pfn);

ARGUMENTS
       vma
           user vma to map to

       addr
           target user address of this page

       pfn
           source kernel pfn

DESCRIPTION
       Similar to vm_insert_page, this allows drivers to insert individual pages they've
       allocated into a user vma. Same comments apply.

       This function should only be called from a vm_ops->fault handler, and in that case the
       handler should return NULL.

       vma cannot be a COW mapping.

       As this is called only for pages that do not currently exist, we do not need to flush old
       virtual caches or the TLB.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                          VM_INSERT_PFN(9)