1 files changed, 6 insertions, 20 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 8d95902e9a38..d3fa10a726cf 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1134,16 +1134,11 @@ munmap_back:
         }
 
         /*
-         * Can we just expand an old private anonymous mapping?
-         * The VM_SHARED test is necessary because shmem_zero_setup
-         * will create the file object for a shared anonymous map below.
+         * Can we just expand an old mapping?
          */
-        if (!file && !(vm_flags & VM_SHARED)) {
-                vma = vma_merge(mm, prev, addr, addr + len, vm_flags,
-                                        NULL, NULL, pgoff, NULL);
-                if (vma)
-                        goto out;
-        }
+        vma = vma_merge(mm, prev, addr, addr + len, vm_flags, NULL, file, pgoff, NULL);
+        if (vma)
+                goto out;
 
         /*
          * Determine the object being mapped and call the appropriate
@@ -1206,17 +1201,8 @@ munmap_back:
         if (vma_wants_writenotify(vma))
                 vma->vm_page_prot = vm_get_page_prot(vm_flags & ~VM_SHARED);
 
-        if (file && vma_merge(mm, prev, addr, vma->vm_end,
-                        vma->vm_flags, NULL, file, pgoff, vma_policy(vma))) {
-                mpol_put(vma_policy(vma));
-                kmem_cache_free(vm_area_cachep, vma);
-                fput(file);
-                if (vm_flags & VM_EXECUTABLE)
-                        removed_exe_file_vma(mm);
-        } else {
-                vma_link(mm, vma, prev, rb_link, rb_parent);
-                file = vma->vm_file;
-        }
+        vma_link(mm, vma, prev, rb_link, rb_parent);
+        file = vma->vm_file;
 
         /* Once vma denies write, undo our temporary denial count */
         if (correct_wcount)