samba - Feb 1999 - Samba 2.0.2 + Linux 2.2 -- copyfile() support?

I realise copyfile() is fairly new to the Linux kernel (only since 2.1.109 or 
so), and requires new glibc2 libs to use, etc.  However, has the Samba team 
provided support for it in the 2.0.x Sambas?  I know FreeBSD has its own 
variant, but the two aren't so completely different to one another that it 
precludes supported both.

It probably is not much of an issue on low volume servers, but I'd imagine 
it'd be a net bonus for busier ones.

=Rob=