[Samba] where is the LFS patch?

[whoever]

Hello,
I found my samba can only support files no larger than 2GB. Searched internet for a while and learned I need the LFS patch. The problem is where can I found them? The link from google seems unreachable.

I found the patch is smbfs-2.4.16-lfs.patch and samba-2.2.2-lfs.patch, but I'm running kernel 2-4-20 and samba-2.2.7a, so the newer kernel and samba doesn't include these LFS patch? why?

Thanks in advance,
chris