linear_hugepage_index 444 include/linux/pagemap.h extern pgoff_t linear_hugepage_index(struct vm_area_struct *vma, linear_hugepage_index 452 include/linux/pagemap.h return linear_hugepage_index(vma, address); linear_hugepage_index 635 mm/hugetlb.c EXPORT_SYMBOL_GPL(linear_hugepage_index);