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* [RFC PATCH 0/7] xfs: add reflink & dedupe support for fsdax.
@ 2019-07-31 11:49 Shiyang Ruan
  2019-07-31 11:49 ` [RFC PATCH 1/7] dax: Introduce dax_copy_edges() for COW Shiyang Ruan
                   ` (8 more replies)
  0 siblings, 9 replies; 14+ messages in thread
From: Shiyang Ruan @ 2019-07-31 11:49 UTC (permalink / raw)
  To: linux-xfs, linux-nvdimm, darrick.wong
  Cc: qi.fuli, gujx, rgoldwyn, david, linux-kernel

This patchset aims to take care of this issue to make reflink and dedupe
work correctly in XFS.

It is based on Goldwyn's patchsets: "v4 Btrfs dax support" and "Btrfs
iomap".  I picked up some patches related and made a few fix to make it
basically works fine.

For dax framework: 
  1. adapt to the latest change in iomap.

For XFS:
  1. report the source address and set IOMAP_COW type for those write
     operations that need COW.
  2. update extent list at the end.
  3. add file contents comparison function based on dax framework.
  4. use xfs_break_layouts() to support dax.


Goldwyn Rodrigues (3):
  dax: replace mmap entry in case of CoW
  fs: dedup file range to use a compare function
  dax: memcpy before zeroing range

Shiyang Ruan (4):
  dax: Introduce dax_copy_edges() for COW.
  dax: copy data before write.
  xfs: Add COW handle for fsdax.
  xfs: Add dedupe support for fsdax.

 fs/btrfs/ioctl.c      |  11 ++-
 fs/dax.c              | 203 ++++++++++++++++++++++++++++++++++++++----
 fs/iomap.c            |   9 +-
 fs/ocfs2/file.c       |   2 +-
 fs/read_write.c       |  11 +--
 fs/xfs/xfs_iomap.c    |  42 +++++----
 fs/xfs/xfs_reflink.c  |  84 +++++++++--------
 include/linux/dax.h   |  15 ++--
 include/linux/fs.h    |   8 +-
 include/linux/iomap.h |   6 ++
 10 files changed, 294 insertions(+), 97 deletions(-)

-- 
2.17.0



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Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-07-31 11:49 [RFC PATCH 0/7] xfs: add reflink & dedupe support for fsdax Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 1/7] dax: Introduce dax_copy_edges() for COW Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 2/7] dax: copy data before write Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 3/7] dax: replace mmap entry in case of CoW Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 4/7] fs: dedup file range to use a compare function Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 5/7] dax: memcpy before zeroing range Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 6/7] xfs: Add COW handle for fsdax Shiyang Ruan
2019-07-31 11:49 ` [RFC PATCH 7/7] xfs: Add dedupe support " Shiyang Ruan
2019-07-31 20:33 ` [RFC PATCH 0/7] xfs: add reflink & " Goldwyn Rodrigues
2019-08-01  1:37   ` Shiyang Ruan
2019-08-05  0:21     ` Dave Chinner
2019-10-09  6:31 ` Christoph Hellwig
2019-10-09 17:11   ` Darrick J. Wong
2019-10-10  7:30     ` Dave Chinner

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