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-rw-r--r--mm/memory.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 6a9c048f6012..7bb70728bb52 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1518,10 +1518,8 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
1518 memset(kaddr, 0, PAGE_SIZE); 1518 memset(kaddr, 0, PAGE_SIZE);
1519 kunmap_atomic(kaddr, KM_USER0); 1519 kunmap_atomic(kaddr, KM_USER0);
1520 flush_dcache_page(dst); 1520 flush_dcache_page(dst);
1521 return; 1521 } else
1522 1522 copy_user_highpage(dst, src, va, vma);
1523 }
1524 copy_user_highpage(dst, src, va, vma);
1525} 1523}
1526 1524
1527/* 1525/*
@@ -1630,6 +1628,7 @@ gotten:
1630 if (!new_page) 1628 if (!new_page)
1631 goto oom; 1629 goto oom;
1632 cow_user_page(new_page, old_page, address, vma); 1630 cow_user_page(new_page, old_page, address, vma);
1631 __SetPageUptodate(new_page);
1633 1632
1634 /* 1633 /*
1635 * Re-check the pte - we dropped the lock 1634 * Re-check the pte - we dropped the lock
@@ -2102,6 +2101,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
2102 page = alloc_zeroed_user_highpage_movable(vma, address); 2101 page = alloc_zeroed_user_highpage_movable(vma, address);
2103 if (!page) 2102 if (!page)
2104 goto oom; 2103 goto oom;
2104 __SetPageUptodate(page);
2105 2105
2106 entry = mk_pte(page, vma->vm_page_prot); 2106 entry = mk_pte(page, vma->vm_page_prot);
2107 entry = maybe_mkwrite(pte_mkdirty(entry), vma); 2107 entry = maybe_mkwrite(pte_mkdirty(entry), vma);
@@ -2202,6 +2202,7 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
2202 goto out; 2202 goto out;
2203 } 2203 }
2204 copy_user_highpage(page, vmf.page, address, vma); 2204 copy_user_highpage(page, vmf.page, address, vma);
2205 __SetPageUptodate(page);
2205 } else { 2206 } else {
2206 /* 2207 /*
2207 * If the page will be shareable, see if the backing 2208 * If the page will be shareable, see if the backing