There was a patch for all architectures, but it got dropped after 3.07 (current ...

There was a patch for all architectures, but it got dropped after 3.07 (current is 3.09). Andrew wrote "I don't feel this patch is general enough nor straight-forward enough to make it into rsync."

See these for more: http://insights.oetiker.ch/linux/fadvise/ https://bugzilla.samba.org/show_bug.cgi?id=7004