Encode huge page size for VM_FAULT_HWPOISON errors

[deliverable/linux.git] / mm / hugetlb.c

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 67cd03239b75136f7458bcd79752f3b3407a5133..96991ded82fe90f46d564e97da0544889a575bf7 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2589,7 +2589,8 @@ retry:
                 * So we need to block hugepage fault by PG_hwpoison bit check.
                 */
                if (unlikely(PageHWPoison(page))) {
-                       ret = VM_FAULT_HWPOISON;
+                       ret = VM_FAULT_HWPOISON | 
+                             VM_FAULT_SET_HINDEX(h - hstates);
                        goto backout_unlocked;
                }
                page_dup_rmap(page);
@@ -2656,7 +2657,8 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
                        migration_entry_wait(mm, (pmd_t *)ptep, address);
                        return 0;
                } else if (unlikely(is_hugetlb_entry_hwpoisoned(entry)))
-                       return VM_FAULT_HWPOISON;
+                       return VM_FAULT_HWPOISON_LARGE | 
+                              VM_FAULT_SET_HINDEX(h - hstates);
        }
 
        ptep = huge_pte_alloc(mm, address, huge_page_size(h));