remap_vmalloc_range — map vmalloc pages to userspace


int remap_vmalloc_range (struct vm_area_struct * vma,
 void * addr,
 unsigned long pgoff);


struct vm_area_struct * vma

vma to cover (map full range of vma)

void * addr

vmalloc memory

unsigned long pgoff

number of pages into addr before first page to map


0 for success, -Exxx on failure

This function checks that addr is a valid vmalloc'ed area, and that it is big enough to cover the vma. Will return failure if that criteria isn't met.

Similar to remap_pfn_range (see mm/memory.c)