Bug#609097: RFP: scannedonly -- scalable samba anti-virus module

[Falk Hackenberger <debian@spam.huckley.de>]

> BTW and OT this behavior is racy, could be better to add an xattr with
> the last scanning time to the file and compare it ?

http://olivier.sessink.nl/scannedonly/faq.html says:
Extended filesystem attributes could have been an option. They take as
much space as the 0 byte .scanned: files, and a lookup is quick and has
little overhead. However, lots of filesystems do not support extended
attributes, so this would limit the usability of the module.