diff options
-rw-r--r-- | mm/memory.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c index ef09f0acb1d8..0047d3a4e364 100644 --- a/mm/memory.c +++ b/mm/memory.c | |||
@@ -1531,8 +1531,6 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, | |||
1531 | if (vma->vm_ops->page_mkwrite(vma, old_page) < 0) | 1531 | if (vma->vm_ops->page_mkwrite(vma, old_page) < 0) |
1532 | goto unwritable_page; | 1532 | goto unwritable_page; |
1533 | 1533 | ||
1534 | page_cache_release(old_page); | ||
1535 | |||
1536 | /* | 1534 | /* |
1537 | * Since we dropped the lock we need to revalidate | 1535 | * Since we dropped the lock we need to revalidate |
1538 | * the PTE as someone else may have changed it. If | 1536 | * the PTE as someone else may have changed it. If |
@@ -1541,6 +1539,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, | |||
1541 | */ | 1539 | */ |
1542 | page_table = pte_offset_map_lock(mm, pmd, address, | 1540 | page_table = pte_offset_map_lock(mm, pmd, address, |
1543 | &ptl); | 1541 | &ptl); |
1542 | page_cache_release(old_page); | ||
1544 | if (!pte_same(*page_table, orig_pte)) | 1543 | if (!pte_same(*page_table, orig_pte)) |
1545 | goto unlock; | 1544 | goto unlock; |
1546 | } | 1545 | } |