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 --- Commits in this patchset: * xfs: Expose init_xattrs in xfs_create_tmpfile * xfs: add parent pointer support to attribute code * xfs: define parent pointer ondisk extended attribute format * xfs: add parent pointer validator functions * xfs: extend transaction reservations for parent attributes * xfs: parent pointer attribute creation * xfs: add parent attributes to link * xfs: add parent attributes to symlink * xfs: remove parent pointers in unlink * xfs: Add parent pointers to rename * xfs: Add parent pointers to xfs_cross_rename * xfs: Filter XFS_ATTR_PARENT for getfattr * xfs: pass the attr value to put_listent when possible * xfs: add a libxfs header file for staging new ioctls * xfs: Add parent pointer ioctl * xfs: fix unit conversion error in xfs_log_calc_max_attrsetm_res * xfs: drop compatibility minimum log size computations for reflink * xfs: don't remove the attr fork when parent pointers are enabled * xfs: Add the parent pointer support to the superblock version 5. * xfs: only clear some log incompat bits at unmount * xfs: allow adding multiple log incompat feature bits * xfs: make XFS_SB_FEAT_INCOMPAT_LOG_XATTRS sticky for parent pointers * xfs: make XFS_SB_FEAT_INCOMPAT_LOG_EXCHMAPS sticky for parent pointers --- .../filesystems/xfs/xfs-online-fsck-design.rst | 2 fs/xfs/Kconfig | 11 + 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 | 9 fs/xfs/libxfs/xfs_fs.h | 3 fs/xfs/libxfs/xfs_fs_staging.h | 84 +++++ 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/agheader.c | 7 fs/xfs/scrub/agheader_repair.c | 4 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 | 22 + fs/xfs/xfs_exchrange.c | 2 fs/xfs/xfs_inode.c | 199 +++++++++-- fs/xfs/xfs_inode.h | 2 fs/xfs/xfs_ioctl.c | 150 ++++++++ fs/xfs/xfs_iops.c | 15 + fs/xfs/xfs_linux.h | 1 fs/xfs/xfs_mount.c | 68 +++- fs/xfs/xfs_mount.h | 5 fs/xfs/xfs_parent_utils.c | 164 +++++++++ fs/xfs/xfs_parent_utils.h | 20 + fs/xfs/xfs_super.c | 17 + 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 46 files changed, 1918 insertions(+), 157 deletions(-) create mode 100644 fs/xfs/libxfs/xfs_fs_staging.h 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
