[LTP] ext4-online-defrag test doesn't work due to too old e4defrag command

[Kazuya M. <k-...@sx...>]

Hi,

I tried to test ext4-online-defrag, but it didn't work well due to
the following errors:

ext4-online-defrag    0  TINFO  :  defrag type: 1, defrag obj: 2, block size: 1024
 "/opt/ltp/testcases/bin/mnt_point/data0"
        File is not regular file                [ NG ]
        Failed to defrag:Bad file descriptor    [ NG ]
        Failed to defrag:Bad file descriptor    [ NG ]
<snip>
        Failed to defrag:Bad file descriptor    [ NG ]
        Failed to defrag:Bad file descriptor    [ NG ]
ext4-online-defrag    2  TPASS  :  ext4 online defrag test pass

This is because e4defrag is too old to defrag the file in the latest kernel.
I think we should use the latest e4defrag command that is contained in e2fsprogs.

Regards,
Kazuya Mio