Re: [PATCH v3 00/19] Delayed Attributes

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On Thu, Sep 05, 2019 at 03:18:18PM -0700, Allison Collins wrote:
> Hi all,
> 
> This set is a subset of a larger series for parent pointers. 
> Delayed attributes allow attribute operations (set and remove) to be 
> logged and committed in the same way that other delayed operations do.
> This will help break up more complex operations when we later introduce
> parent pointers which can be used in a number of optimizations.  Since
> delayed attributes can be implemented as a stand alone feature, I've
> decided to subdivide the set to help make it more manageable.  Delayed
> attributes may also provide the infastructure to later break up large
> attributes into smaller transactions instead of one large bwrite.
> 
> Changes since v2:
> Mostly review updates collected since v2.  Patch 17 is new and adds a
> new feature bit that is enabled through mkfs.xfs -n delattr.  Attr
> renames have been simplified into separate remove and set opertaions
> which removes the need for the INCOMPLETE state used in non delayed
> operations
> 
> I've also made the corresponding updates to the user space side, and
> xfstests as well.
> 
> Question, comment and feedback appreciated! 
> 
> Thanks all!
> Allison
> 
> Allison Collins (15):
>   xfs: Replace attribute parameters with struct xfs_name

Hi Allison,

The first patch in the series doesn't apply to current for-next or
master. What is the baseline for this series? Perhaps a rebase is in
order..?

Brian

>   xfs: Embed struct xfs_name in xfs_da_args
>   xfs: Add xfs_dabuf defines
>   xfs: Factor out new helper functions xfs_attr_rmtval_set
>   xfs: Factor up trans handling in xfs_attr3_leaf_flipflags
>   xfs: Factor out xfs_attr_leaf_addname helper
>   xfs: Factor up commit from xfs_attr_try_sf_addname
>   xfs: Factor up trans roll from xfs_attr3_leaf_setflag
>   xfs: Add xfs_attr3_leaf helper functions
>   xfs: Factor out xfs_attr_rmtval_invalidate
>   xfs: Factor up trans roll in xfs_attr3_leaf_clearflag
>   xfs: Add delay context to xfs_da_args
>   xfs: Add delayed attribute routines
>   xfs: Add feature bit XFS_SB_FEAT_INCOMPAT_LOG_DELATTR
>   xfs: Enable delayed attributes
> 
> Allison Henderson (4):
>   xfs: Add xfs_has_attr and subroutines
>   xfs: Set up infastructure for deferred attribute operations
>   xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred
>   xfs_io: Add delayed attributes error tag
> 
>  fs/xfs/Makefile                 |    2 +-
>  fs/xfs/libxfs/xfs_attr.c        | 1068 ++++++++++++++++++++++++++++++++++-----
>  fs/xfs/libxfs/xfs_attr.h        |   53 +-
>  fs/xfs/libxfs/xfs_attr_leaf.c   |  277 ++++++----
>  fs/xfs/libxfs/xfs_attr_leaf.h   |    7 +
>  fs/xfs/libxfs/xfs_attr_remote.c |  103 +++-
>  fs/xfs/libxfs/xfs_attr_remote.h |    4 +-
>  fs/xfs/libxfs/xfs_da_btree.c    |    8 +-
>  fs/xfs/libxfs/xfs_da_btree.h    |   27 +-
>  fs/xfs/libxfs/xfs_defer.c       |    1 +
>  fs/xfs/libxfs/xfs_defer.h       |    3 +
>  fs/xfs/libxfs/xfs_dir2.c        |   22 +-
>  fs/xfs/libxfs/xfs_dir2_block.c  |    6 +-
>  fs/xfs/libxfs/xfs_dir2_leaf.c   |    6 +-
>  fs/xfs/libxfs/xfs_dir2_node.c   |    8 +-
>  fs/xfs/libxfs/xfs_dir2_sf.c     |   30 +-
>  fs/xfs/libxfs/xfs_errortag.h    |    4 +-
>  fs/xfs/libxfs/xfs_format.h      |   11 +-
>  fs/xfs/libxfs/xfs_fs.h          |    1 +
>  fs/xfs/libxfs/xfs_log_format.h  |   44 +-
>  fs/xfs/libxfs/xfs_sb.c          |    2 +
>  fs/xfs/libxfs/xfs_types.h       |    1 +
>  fs/xfs/scrub/attr.c             |   12 +-
>  fs/xfs/scrub/common.c           |    2 +
>  fs/xfs/xfs_acl.c                |   29 +-
>  fs/xfs/xfs_attr_item.c          |  764 ++++++++++++++++++++++++++++
>  fs/xfs/xfs_attr_item.h          |   88 ++++
>  fs/xfs/xfs_attr_list.c          |    1 +
>  fs/xfs/xfs_error.c              |    3 +
>  fs/xfs/xfs_ioctl.c              |   30 +-
>  fs/xfs/xfs_ioctl32.c            |    2 +
>  fs/xfs/xfs_iops.c               |   14 +-
>  fs/xfs/xfs_log.c                |    4 +
>  fs/xfs/xfs_log_recover.c        |  173 +++++++
>  fs/xfs/xfs_ondisk.h             |    2 +
>  fs/xfs/xfs_super.c              |    4 +
>  fs/xfs/xfs_trace.h              |   20 +-
>  fs/xfs/xfs_trans.h              |    1 -
>  fs/xfs/xfs_xattr.c              |   31 +-
>  39 files changed, 2509 insertions(+), 359 deletions(-)
>  create mode 100644 fs/xfs/xfs_attr_item.c
>  create mode 100644 fs/xfs/xfs_attr_item.h
> 
> -- 
> 2.7.4
> 



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