1 files changed, 8 insertions, 0 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index ce501bce1c2..f7ac7b812f9 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1028,6 +1028,14 @@ repeat:
 			page_cache_release(swappage);
 			goto repeat;
 		}
+		if (!PageSwapCache(swappage)) {
+			/* Page migration has occured */
+			shmem_swp_unmap(entry);
+			spin_unlock(&info->lock);
+			unlock_page(swappage);
+			page_cache_release(swappage);
+			goto repeat;
+		}
 		if (PageWriteback(swappage)) {
 			shmem_swp_unmap(entry);
 			spin_unlock(&info->lock);