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_inert_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 2.6. July 2010 VM_INSERT_PFN(9)
