my wishlist item is for btrfs to expose to user-space enough functionality that keeping sqlite databases directly in the file system instead of through its own abstraction in a file maintained in the fs will be a matter of replacing sqlite''s btree.c file, and referring to an sqlite database using whatever one uses to refer to a btrfs subvolume, so the database would be "mounted" rather than reading and writing through the file abstraction. http://sqlite.org/images/arch2.gif is a block diagram of the sqlite architecture, showing a clean line above the "backend" which hopefully btrfs can offer an interface to match. That would be cool! -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html