In fs/btrfs/tree-log.c I'm not seeing anything that would cause a message to appear in dmesg upon log tree replay at mount time. I see in fs/btrfs/super.c "disabling log replay at mount time" "nologreplay must be used with ro mount option" But in the case log replay is needed and is performed, causes any info message to appear in dmesg. At least ext4 and XFS do have such messages found in dmesg upon log replay. What am I missing? Log replay suggests a crash, power failure or otherwise unclean shutdown, and I think it would be useful to have an indicator of such at the next boot rather than Btrfs just silently succeeding without giving any indication that there was previously an unclean unmount. -- Chris Murphy
