• Josef Bacik's avatar
    Btrfs: add a extent ref verify tool · fd708b81
    Josef Bacik authored
    We were having corruption issues that were tied back to problems with
    the extent tree.  In order to track them down I built this tool to try
    and find the culprit, which was pretty successful.  If you compile with
    this tool on it will live verify every ref update that the fs makes and
    make sure it is consistent and valid.  I've run this through with
    xfstests and haven't gotten any false positives.  Thanks,
    Signed-off-by: default avatarJosef Bacik <jbacik@fb.com>
    Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
    [ update error messages, add fixup from Dan Carpenter to handle errors
      of read_tree_block ]
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
    fd708b81
ref-verify.c 25.8 KB