ALLOC_VM_AREA(9) Memory Management in Linux ALLOC_VM_AREA(9)
NAME
alloc_vm_area - allocate a range of kernel address space
SYNOPSIS
struct vm_struct * alloc_vm_area(size_t size, pte_t ** ptes);
ARGUMENTS
size
size of the area
ptes
returns the PTEs for the address space
RETURNS
NULL on failure, vm_struct on success
This function reserves a range of kernel address space, and allocates pagetables to map that range. No actual mappings are created.
If ptes is non-NULL, pointers to the PTEs (in init_mm) allocated for the VM area are returned.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 ALLOC_VM_AREA(9)
