[CentOS] e2fsck with millions of files

> To extend his comment: There is a bug in e2fsck for filesystems with
> many hardlinks.  It could take *weeks* or longer, if it finishes at all,
> to run on a large filesystem with lots of hardlinks.
>
> http://www.mail-archive.com/scientific-linux-users@listserv.fnal.gov/msg02180.html

Awesome.  This happens to be our exact situation - this partition is
used for BackupPC which heavily relies on hard links.