1 files changed, 5 insertions, 1 deletions

diff --git a/mm/page_io.c b/mm/page_io.c
index cd92e3d67a32..985f23cfa79b 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -353,7 +353,11 @@ int swap_readpage(struct page *page)
 
         ret = bdev_read_page(sis->bdev, swap_page_sector(page), page);
         if (!ret) {
-                swap_slot_free_notify(page);
+                if (trylock_page(page)) {
+                        swap_slot_free_notify(page);
+                        unlock_page(page);
+                }
+
                 count_vm_event(PSWPIN);
                 return 0;
         }