*
* This takes care of mlocking the pages too if VM_LOCKED is set.
*
- * return 0 on success, negative error code on error.
+ * Return either number of pages pinned in the vma, or a negative error
+ * code on error.
*
* vma->vm_mm->mmap_lock must be held.
*
*/
static inline pte_t gup_get_pte(pte_t *ptep)
{
- return READ_ONCE(*ptep);
+ return ptep_get(ptep);
}
#endif /* CONFIG_GUP_GET_PTE_LOW_HIGH */
if (pte_end < end)
end = pte_end;
- pte = READ_ONCE(*ptep);
+ pte = huge_ptep_get(ptep);
if (!pte_access_permitted(pte, flags & FOLL_WRITE))
return 0;