Hi all, Add documentation for all the ioctls that xfs_scrub uses, so that we finally have some literature about how those interfaces are supposed to work. If you're going to start using this mess, you probably ought to just pull from my git trees, which are linked below. This is an extraordinary way to destroy everything. Enjoy! Comments and questions are, as always, welcome. --D xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=document-ioctls