1 files changed, 4 insertions, 2 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 2664a47cec93..0db0de1c2fbe 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1306,7 +1306,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
         }
 
         addr = mmap_region(file, addr, len, vm_flags, pgoff);
-        if (!IS_ERR_VALUE(addr) && (vm_flags & VM_POPULATE))
+        if (!IS_ERR_VALUE(addr) &&
+            ((vm_flags & VM_LOCKED) ||
+             (flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE))
                 *populate = len;
         return addr;
 }
@@ -1938,7 +1940,7 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
 
         /* Check the cache first. */
         /* (Cache hit rate is typically around 35%.) */
-        vma = mm->mmap_cache;
+        vma = ACCESS_ONCE(mm->mmap_cache);
         if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) {
                 struct rb_node *rb_node;