fail_log_device   597 drivers/md/dm-log.c 		fail_log_device(lc);
fail_log_device   643 drivers/md/dm-log.c 		fail_log_device(lc);
fail_log_device   704 drivers/md/dm-log.c 		fail_log_device(lc);
fail_log_device   710 drivers/md/dm-log.c 				fail_log_device(lc);