diff --git a/mm/page_io.c b/mm/page_io.c
index ac81f79de940b1c886829658ec15b2122b41f49d..97aaf9bb6a9e61cb6781338489eb53fc33577c15 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -76,6 +76,7 @@ static void swap_slot_free_notify(struct page *page)
 {
 	struct swap_info_struct *sis;
 	struct gendisk *disk;
+	swp_entry_t entry;
 
 	/*
 	 * There is no guarantee that the page is in swap cache - the software
@@ -107,11 +108,11 @@ static void swap_slot_free_notify(struct page *page)
 	 * we again wish to reclaim it.
 	 */
 	disk = sis->bdev->bd_disk;
-	if (disk->fops->swap_slot_free_notify) {
-		swp_entry_t entry;
+	entry.val = page_private(page);
+	if (disk->fops->swap_slot_free_notify &&
+			__swap_count(entry) == 1) {
 		unsigned long offset;
 
-		entry.val = page_private(page);
 		offset = swp_offset(entry);
 
 		SetPageDirty(page);