If log stripe unit isn't a multiple of the fs blocksize and
mounting, the invalid sb_logsunit leads to crash as soon as we try
to write to the log.
Signed-off-by: xiao yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
xiao yang