Map vmalloc pages to userspace
int remap_vmalloc_range(struct vm_area_struct * vma, void * addr, unsigned long pgoff);
vma
vma to cover (map full range of vma)
addr
vmalloc memory
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)