Mailing the story:

"The following patches have been in the -mm tree for a while, and I plan to push them to Linus when the 2.6.25 merge window opens," began Theodore Ts'o, offering the patches for review before they are merged. "With this patch series, it is expected that [the] ext4 format should be settling down. We still have delayed allocation and online defrag which aren't quite ready to merge, but those shouldn't affect the on-disk format.