---

yaml
---
r: 286603
b: refs/heads/master
c: 409eb8c
h: refs/heads/master
i:
  286601: 3f75d48
  286599: 9f2a58f
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6568d4a9c9ff16d6c4f0b14dfea567806ce579e4
+refs/heads/master: 409eb8c2611b4310947a150af988111f7f52ab15

trunk/mm/hugetlb.c

@@ -2508,6 +2508,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 {
 	struct hstate *h = hstate_vma(vma);
 	int ret = VM_FAULT_SIGBUS;
+	int anon_rmap = 0;
 	pgoff_t idx;
 	unsigned long size;
 	struct page *page;
@@ -2562,14 +2563,13 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			spin_lock(&inode->i_lock);
 			inode->i_blocks += blocks_per_huge_page(h);
 			spin_unlock(&inode->i_lock);
-			page_dup_rmap(page);
 		} else {
 			lock_page(page);
 			if (unlikely(anon_vma_prepare(vma))) {
 				ret = VM_FAULT_OOM;
 				goto backout_unlocked;
 			}
-			hugepage_add_new_anon_rmap(page, vma, address);
+			anon_rmap = 1;
 		}
 	} else {
 		/*
@@ -2582,7 +2582,6 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			      VM_FAULT_SET_HINDEX(h - hstates);
 			goto backout_unlocked;
 		}
-		page_dup_rmap(page);
 	}
 
 	/*
@@ -2606,6 +2605,10 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (!huge_pte_none(huge_ptep_get(ptep)))
 		goto backout;
 
+	if (anon_rmap)
+		hugepage_add_new_anon_rmap(page, vma, address);
+	else
+		page_dup_rmap(page);
 	new_pte = make_huge_pte(vma, page, ((vma->vm_flags & VM_WRITE)
 				&& (vma->vm_flags & VM_SHARED)));
 	set_huge_pte_at(mm, address, ptep, new_pte);