Hi all,
This is the fourth version of 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, or any other feature that could make
use of quickly deriving an inodes path from the mount point. This set also
introduces deferred attribute operations, though it is currently only used by
the new parent pointer code.
I've integrated the suggestions made since v3, the biggest of which I think
was reducing the size of xfs_attr_log_item so that they didn't take up quite
so much space, as well as merging the deferred attribute set and create code
paths. I've also added a patch that implements a new ioctl interface to return
the parent pointer to user space. I know Darrick already had some suggestions
for the new ioctl code that I still need to add, but I wanted to keep the rest
of the folks out here updated as to where I am with it now.
I'm still working on setting up some new xfstests for this patch set. I'll need
to get the appropriate changes mapped to xfsprogs first, but I will keep folks
updated as I go.
As always, comments and feedback are appreciated. Thank you!
Allison Henderson
Allison Henderson (8):
Add helper functions xfs_attr_set_args and xfs_attr_remove_args
Set up infastructure for deferred attribute operations
Add xfs_attr_set_defered and xfs_attr_remove_defered
Remove all strlen calls in all xfs_attr_* functions for attr names.
Add the extra space requirements for parent pointer attributes when
calculating the minimum log size during mkfs
Add parent pointers to rename
Add the parent pointer support to the superblock version 5.
Add parent pointer ioctl
Dave Chinner (5):
xfs: define parent pointer xattr format
xfs: extent transaction reservations for parent attributes
xfs: parent pointer attribute creation
xfs: add parent attributes to link
xfs: remove parent pointers in unlink
Mark Tinguely (4):
xfs: get directory offset when adding directory name
xfs: get directory offset when removing directory name
xfs: get directory offset when replacing a directory name
xfs: add parent pointer support to attribute code
fs/xfs/Makefile | 3 +
fs/xfs/libxfs/xfs_attr.c | 481 +++++++++++++++++++++++++++-----------
fs/xfs/libxfs/xfs_bmap.c | 55 +++--
fs/xfs/libxfs/xfs_bmap.h | 1 +
fs/xfs/libxfs/xfs_da_btree.h | 1 +
fs/xfs/libxfs/xfs_da_format.h | 12 +-
fs/xfs/libxfs/xfs_defer.h | 1 +
fs/xfs/libxfs/xfs_dir2.c | 41 ++--
fs/xfs/libxfs/xfs_dir2.h | 10 +-
fs/xfs/libxfs/xfs_dir2_block.c | 9 +-
fs/xfs/libxfs/xfs_dir2_leaf.c | 8 +-
fs/xfs/libxfs/xfs_dir2_node.c | 8 +-
fs/xfs/libxfs/xfs_dir2_sf.c | 6 +
fs/xfs/libxfs/xfs_format.h | 37 ++-
fs/xfs/libxfs/xfs_fs.h | 2 +
fs/xfs/libxfs/xfs_log_format.h | 37 ++-
fs/xfs/libxfs/xfs_log_rlimit.c | 34 +++
fs/xfs/libxfs/xfs_parent.c | 113 +++++++++
fs/xfs/libxfs/xfs_trans_resv.c | 103 +++++++--
fs/xfs/libxfs/xfs_types.h | 1 +
fs/xfs/xfs_acl.c | 12 +-
fs/xfs/xfs_attr.h | 58 ++++-
fs/xfs/xfs_attr_item.c | 513 +++++++++++++++++++++++++++++++++++++++++
fs/xfs/xfs_attr_item.h | 117 ++++++++++
fs/xfs/xfs_attr_list.c | 3 +
fs/xfs/xfs_fsops.c | 4 +-
fs/xfs/xfs_inode.c | 141 ++++++++---
fs/xfs/xfs_ioctl.c | 61 ++++-
fs/xfs/xfs_iops.c | 6 +-
fs/xfs/xfs_log_recover.c | 140 +++++++++++
fs/xfs/xfs_super.c | 5 +
fs/xfs/xfs_symlink.c | 2 +-
fs/xfs/xfs_trans.h | 13 ++
fs/xfs/xfs_trans_attr.c | 288 +++++++++++++++++++++++
fs/xfs/xfs_xattr.c | 10 +-
35 files changed, 2062 insertions(+), 274 deletions(-)
create mode 100644 fs/xfs/libxfs/xfs_parent.c
create mode 100644 fs/xfs/xfs_attr_item.c
create mode 100644 fs/xfs/xfs_attr_item.h
create mode 100644 fs/xfs/xfs_trans_attr.c
--
2.7.4
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