1 files changed, 4 insertions, 1 deletions

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 96991ded82fe..c4a3558589ab 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2448,8 +2448,11 @@ retry_avoidcopy:
          * When the original hugepage is shared one, it does not have
          * anon_vma prepared.
          */
-        if (unlikely(anon_vma_prepare(vma)))
+        if (unlikely(anon_vma_prepare(vma))) {
+                /* Caller expects lock to be held */
+                spin_lock(&mm->page_table_lock);
                 return VM_FAULT_OOM;
+        }
 
         copy_user_huge_page(new_page, old_page, address, vma);
         __SetPageUptodate(new_page);