diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 1ab534c..a415e1c 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -272,6 +272,7 @@
 	struct bio_list return_bi;
 	struct md_rdev *blocked_rdev;
 	int handle_bad_blocks;
+	int log_failed;
 };
 
 /* Flags for struct r5dev.flags */
@@ -631,4 +632,5 @@
 extern void r5l_stripe_write_finished(struct stripe_head *sh);
 extern int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio);
 extern void r5l_quiesce(struct r5l_log *log, int state);
+extern bool r5l_log_disk_error(struct r5conf *conf);
 #endif