Hi all, This submission extends xfs_db and xfs_admin to support adding the inode btree counter and bigtime features to an existing v5 filesystem. v2: Rebase to 5.10-rc0 v3: respond to reviewer comments v4: document which kernel version these new features showed up in v5: move all the upgrader code to xfs_repair per Eric suggestion, which eliminates a bunch of fragile db/admin/repair coordination. 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=fs-upgrades --- man/man8/xfs_admin.8 | 17 +++++++++++++++- repair/globals.c | 2 ++ repair/globals.h | 2 ++ repair/phase1.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++ repair/xfs_repair.c | 22 +++++++++++++++++++++ 5 files changed, 94 insertions(+), 1 deletion(-)