title: du counting hardlinks towards filesize?
body: <p>I have a backup system that creates directories named after Unix Timestamps, and then creates incremental backups using a hardlink system (--link-dest in rsync), so typically the first backup is very large, and then later backups are fractions as big.</p>
  
  <p>This is my output of my current backups:</p>
  
  <pre><code>root@athos:/media/awesomeness_drive# du -sh lantea_home/*
  31G lantea_home/1384197192
  17M lantea_home/1384205953
  17M lantea_home/1384205979
  17M lantea_home/1384206056
  17M lantea_home/1384206195
  17M lantea_home/1384207349
  3.1G    lantea_home/1384207678
  14M lantea_home/1384208111
  14M lantea_home/1384208128
  16M lantea_home/1384232401
  15G lantea_home/1384275601
  43M lantea_home/1384318801
  </code></pre>
  
  <p>Everything seems correct, however, take for example the last directory, <code>lantea_home/1384318801</code>:</p>
  
  <pre><code>root@athos:/media/awesomeness_drive# du -sh lantea_home/1384318801/
  28G lantea_home/1384318801/
  </code></pre>
  
  <p>I consistently get this behavior, why is the directory considered 28G by the second du command? </p>
  
  <p>Note - the output remains the same with the -P and -L flags.</p>