On Sat, Feb 8, 2014 at 2:01 PM, Gregg Levine email@example.com wrote:
Once when trying to build a kernel that was closer to the term unique rather then the generic one that normally traveled with one of my systems, I came across references to certain items that had Google's fingerprints on it. I asked about it here, and sure enough the response was that it was invented for the Google servers, and was sent as contribution to the Linux Kernel community.
Which pretty much makes my point; that code was doubtless in use for quite some time before release.
It's the way it works, not just at Google. Companies develop and perfect this stuff, and release comes later, and upstreaming is never a small effort.