other versions
| 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
RETURN¶
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¶
| March 2017 | Kernel Hackers Manual 4.10 |