From: David Sterba <dsterba@xxxxxxxx> commit e8294f2f6aa6208ed0923aa6d70cea3be178309a upstream. There's no logged information about tree-log replay although this is something that points to previous unclean unmount. Other filesystems report that as well. Suggested-by: Chris Murphy <lists@xxxxxxxxxxxxxxxxx> CC: stable@xxxxxxxxxxxxxxx # 4.4+ Reviewed-by: Anand Jain <anand.jain@xxxxxxxxxx> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/btrfs/disk-io.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3117,6 +3117,7 @@ retry_root_backup: /* do not make disk changes in broken FS or nologreplay is given */ if (btrfs_super_log_root(disk_super) != 0 && !btrfs_test_opt(fs_info, NOLOGREPLAY)) { + btrfs_info(fs_info, "start tree-log replay"); ret = btrfs_replay_log(fs_info, fs_devices); if (ret) { err = ret;