Btrfs merged for 2.6.29

It appears that the questions regarding merging the Btrfs filesystem for 2.6.29 have been resolved: Linus just merged Btrfs into the mainline repository. Congratulations to Chris Mason and company; now all they have to do is to make it stable enough for us to trust our data to it.

It seems likely that the squashfs filesystem (a read-only filesystem used on embedded systems and live CDs) will also go in; as Andrew Morton put it: "We've long needed a filesystem named after a vegetable."

