Re: du counting files in hard-linked directories twice

[Michael Schwarz]

Am 2009-08-28 um 01:09 schrieb Matthew Woehlke:

> Hard-linked *directories*? I wasn't aware those were allowed... (If  
> I read 'man 3 link' right, they aren't allowed on Linux.)

That got added in Mac OS X 10.5. It allows Time Machine create a  
backup in O(number of changed files) time instead of O(number of  
files) as unchanged subtrees can be hard-linked from a previous backup.

This is also where I saw this bug, when doing a du -hs * in the backup  
dir to get a roundup on how much new data is in each backup.

Michael