remap_vmalloc_range_partial — map vmalloc pages to userspace
int remap_vmalloc_range_partial ( | struct vm_area_struct * vma, |
| unsigned long uaddr, | |
| void * kaddr, | |
unsigned long size); |
struct vm_area_struct * vmavma to cover
unsigned long uaddrtarget user address to start at
void * kaddrvirtual address of vmalloc kernel memory
unsigned long sizesize of map area
0 for success, -Exxx on failure
This function checks that kaddr is a valid vmalloc'ed area,
and that it is big enough to cover the range starting at
uaddr in vma. Will return failure if that criteria isn't
met.
Similar to remap_pfn_range (see mm/memory.c)