remap_vmalloc_range_partial
if (remap_vmalloc_range_partial(vma, dst, buf, 0,
if (remap_vmalloc_range_partial(vma, vma->vm_start + len,
extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
return remap_vmalloc_range_partial(vma, vma->vm_start,