Hi all, Dave Chinner pointed out (a bit too subtly) that hashing the dirent name to try to squash it into the parent pointer xattr name is unnecessary because we could simply make the xattr matching predicate compare names. Do that instead and drop the hashing. 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. kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=pptrs-vlookup xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=pptrs-vlookup --- fs/xfs/Kconfig | 1 fs/xfs/libxfs/xfs_attr.c | 39 +++-- fs/xfs/libxfs/xfs_attr_leaf.c | 41 +++++ fs/xfs/libxfs/xfs_da_btree.h | 6 + fs/xfs/libxfs/xfs_da_format.h | 34 ++--- fs/xfs/libxfs/xfs_log_format.h | 30 +++- fs/xfs/libxfs/xfs_parent.c | 302 +++++++++++++--------------------------- fs/xfs/libxfs/xfs_parent.h | 16 -- fs/xfs/libxfs/xfs_trans_resv.c | 1 fs/xfs/scrub/dir.c | 38 +---- fs/xfs/scrub/parent.c | 61 +------- fs/xfs/scrub/parent_repair.c | 34 +---- fs/xfs/xfs_attr_item.c | 217 ++++++++++++++++++++--------- fs/xfs/xfs_attr_item.h | 3 fs/xfs/xfs_linux.h | 1 fs/xfs/xfs_mount.c | 13 -- fs/xfs/xfs_mount.h | 3 fs/xfs/xfs_ondisk.h | 3 fs/xfs/xfs_sha512.h | 42 ------ fs/xfs/xfs_super.c | 3 fs/xfs/xfs_xattr.c | 5 + 21 files changed, 383 insertions(+), 510 deletions(-) delete mode 100644 fs/xfs/xfs_sha512.h