Hi all, This series adds online health tracking capabilities to XFS, which enables userspace to discover if any metadata corruptions have been found (and not fixed) within a given class of metadata. Reporting to userspace is handled by three ioctl modifications: enhancements of the existing fs geometry ioctl to include a health field; enhancement of the existing bulkstat ioctl to report health, and a totally new ioctl to report allocation group geometry and status. At this point we've merged everything but the changes to spaceman. 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=health-tracking xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=health-tracking fstests git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=health-tracking
