follow_pte_pmd    801 fs/dax.c       		if (follow_pte_pmd(vma->vm_mm, address, &range,
follow_pte_pmd   1469 include/linux/mm.h int follow_pte_pmd(struct mm_struct *mm, unsigned long address,
follow_pte_pmd   4223 mm/memory.c    EXPORT_SYMBOL(follow_pte_pmd);