And I forgot to add that the Linux "leadership" can help speed up the maturing of btrfs, the question is do you want to do so ?
Or do you prefer to play the "Cat on a hot tin roof" game ? Please do not try digging in the IBM/Microsoft way - evolution will swipe you away since you are lacking their backers.
Just to avoid any speculation - I have nothing to do with Oracle. I am simply a manager who has been crazy about open source for a looong time (not just squeezing money out of it). Not many of us around, right ? Have you ever wondered why ?