Hi all, This is the latest parent pointer attributes for xfs. The goal of this patch set is to add a parent pointer attribute to each inode. The attribute name containing the parent inode, generation, and directory offset, while the attribute value contains the file name. This feature will enable future optimizations for online scrub, shrink, nfs handles, verity, or any other feature that could make use of quickly deriving an inodes path from the mount point. At this point, Allison is moving on to other things, so I've merged her patchset into djwong-dev for merging. Updates since v12 [djwong]: Rebase on 6.5-rc and update the online fsck design document. Updates since v11 [djwong]: Rebase on 6.4-rc and make some tweaks and bugfixes to enable the repair prototypes. Merge with djwong-dev and make online repair actually work. Updates since v10 [djwong]: Merge in the ondisk format changes to get rid of the diroffset conflicts with the parent pointer repair code, rebase the entire series with the attr vlookup changes first, and merge all the other random fixes. Updates since v9: Reordered patches 2 and 3 to be 6 and 7 xfs: Add xfs_verify_pptr moved parent pointer validators to xfs_parent xfs: Add parent pointer ioctl Extra validation checks for fs id added missing release for the inode use GFP_KERNEL flags for malloc/realloc reworked ioctl to use pptr listenty and flex array NEW xfs: don't remove the attr fork when parent pointers are enabled NEW directory lookups should return diroffsets too NEW xfs: move/add parent pointer validators to xfs_parent Updates since v8: xfs: parent pointer attribute creation Fix xfs_parent_init to release log assist on alloc fail Add slab cache for xfs_parent_defer Fix xfs_create to release after unlock Add xfs_parent_start and xfs_parent_finish wrappers removed unused xfs_parent_name_irec and xfs_init_parent_name_irec xfs: add parent attributes to link Start/finish wrapper updates Fix xfs_link to disallow reservationless quotas xfs: add parent attributes to symlink Fix xfs_symlink to release after unlock Start/finish wrapper updates xfs: remove parent pointers in unlink Start/finish wrapper updates Add missing parent free xfs: Add parent pointers to rename Start/finish wrapper updates Fix rename to only grab logged xattr once Fix xfs_rename to disallow reservationless quotas Fix double unlock on dqattach fail Move parent frees to out_release_wip xfs: Add parent pointers to xfs_cross_rename Hoist parent pointers into rename Questions comments and feedback appreciated! Thanks all! Allison If you're going to start using this code, I strongly recommend pulling from my git trees, which are linked below. This has been running on the djcloud for months with no problems. 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=pptrs xfsprogs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=pptrs fstests git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=pptrs xfsdocs git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-documentation.git/log/?h=pptrs --- fs/xfs/Makefile | 3 fs/xfs/libxfs/xfs_attr.c | 15 +- fs/xfs/libxfs/xfs_attr.h | 10 + fs/xfs/libxfs/xfs_attr_leaf.c | 6 - fs/xfs/libxfs/xfs_attr_sf.h | 1 fs/xfs/libxfs/xfs_da_format.h | 33 +++ fs/xfs/libxfs/xfs_format.h | 4 fs/xfs/libxfs/xfs_fs.h | 2 fs/xfs/libxfs/xfs_fs_staging.h | 66 +++++++ fs/xfs/libxfs/xfs_log_format.h | 1 fs/xfs/libxfs/xfs_log_rlimit.c | 43 +++++ fs/xfs/libxfs/xfs_ondisk.h | 4 fs/xfs/libxfs/xfs_parent.c | 368 +++++++++++++++++++++++++++++++++++++++ fs/xfs/libxfs/xfs_parent.h | 155 ++++++++++++++++ fs/xfs/libxfs/xfs_sb.c | 4 fs/xfs/libxfs/xfs_trans_resv.c | 326 +++++++++++++++++++++++++++++------ fs/xfs/libxfs/xfs_trans_space.c | 121 +++++++++++++ fs/xfs/libxfs/xfs_trans_space.h | 25 +-- fs/xfs/scrub/attr.c | 4 fs/xfs/scrub/dir_repair.c | 2 fs/xfs/scrub/orphanage.c | 5 - fs/xfs/scrub/parent_repair.c | 3 fs/xfs/scrub/symlink_repair.c | 2 fs/xfs/scrub/tempfile.c | 2 fs/xfs/xfs_attr_item.c | 42 ++++ fs/xfs/xfs_attr_list.c | 25 ++- fs/xfs/xfs_inode.c | 199 +++++++++++++++++---- fs/xfs/xfs_inode.h | 2 fs/xfs/xfs_ioctl.c | 146 +++++++++++++++ fs/xfs/xfs_iops.c | 15 +- fs/xfs/xfs_parent_utils.c | 161 +++++++++++++++++ fs/xfs/xfs_parent_utils.h | 20 ++ fs/xfs/xfs_super.c | 14 + fs/xfs/xfs_symlink.c | 28 ++- fs/xfs/xfs_trace.c | 1 fs/xfs/xfs_trace.h | 76 ++++++++ fs/xfs/xfs_xattr.c | 8 + fs/xfs/xfs_xattr.h | 2 38 files changed, 1806 insertions(+), 138 deletions(-) create mode 100644 fs/xfs/libxfs/xfs_parent.c create mode 100644 fs/xfs/libxfs/xfs_parent.h create mode 100644 fs/xfs/libxfs/xfs_trans_space.c create mode 100644 fs/xfs/xfs_parent_utils.c create mode 100644 fs/xfs/xfs_parent_utils.h
