diff --git a/fs/mpage.c b/fs/mpage.c
index 388fde6..ca0244b 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -614,6 +614,7 @@
 	 * the confused fail path above (OOM) will be very confused when
 	 * it finds all bh marked clean (i.e. it will not write anything)
 	 */
+	wbc_account_io(wbc, page, PAGE_SIZE);
 	length = first_unmapped << blkbits;
 	if (bio_add_page(bio, page, length, 0) < length) {
 		bio = mpage_bio_submit(WRITE, bio);