Hi all, Alex Lyakas discovered that it's possible to mount a filesystem with sunit/swidth options that will cause a subsequent xfs_repair run to fail to find the root directory. This series adds some code to strengthen the kernel's mount option checking to avoid updating the superblock if this happens. 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 kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=sunit-updates
