[PATCHSETS] v14 fsdax-rmap + v11 fsdax-reflink

[Shiyang Ruan]

This is a combination of two patchsets:
 1.fsdax-rmap: https://lore.kernel.org/linux-xfs/20220419045045.1664996-1-ruansy.fnst@xxxxxxxxxxx/
 2.fsdax-reflink: https://lore.kernel.org/linux-xfs/20210928062311.4012070-1-ruansy.fnst@xxxxxxxxxxx/

 Changes since v13 of fsdax-rmap:
  1. Fixed mistakes during rebasing code to latest next-
  2. Rebased to next-20220504

 Changes since v10 of fsdax-reflink:
  1. Rebased to next-20220504 and fsdax-rmap
  2. Dropped a needless cleanup patch: 'fsdax: Convert dax_iomap_zero to
      iter model'
  3. Fixed many conflicts during rebasing
  4. Fixed a dedupe bug in Patch 05: the actuall length to compare could be
      shorter than smap->length or dmap->length.
  PS: There are many changes during rebasing.  I think it's better to
      review again.

==
Shiyang Ruan (14):
  fsdax-rmap:
    dax: Introduce holder for dax_device
    mm: factor helpers for memory_failure_dev_pagemap
    pagemap,pmem: Introduce ->memory_failure()
    fsdax: Introduce dax_lock_mapping_entry()
    mm: Introduce mf_dax_kill_procs() for fsdax case
    xfs: Implement ->notify_failure() for XFS
    fsdax: set a CoW flag when associate reflink mappings
  fsdax-reflink:
    fsdax: Output address in dax_iomap_pfn() and rename it
    fsdax: Introduce dax_iomap_cow_copy()
    fsdax: Replace mmap entry in case of CoW
    fsdax: Add dax_iomap_cow_copy() for dax zero
    fsdax: Dedup file range to use a compare function
    xfs: support CoW in fsdax mode
    xfs: Add dax dedupe support

 drivers/dax/super.c         |  67 +++++-
 drivers/md/dm.c             |   2 +-
 drivers/nvdimm/pmem.c       |  17 ++
 fs/dax.c                    | 398 ++++++++++++++++++++++++++++++------
 fs/erofs/super.c            |  13 +-
 fs/ext2/super.c             |   7 +-
 fs/ext4/super.c             |   9 +-
 fs/remap_range.c            |  31 ++-
 fs/xfs/Makefile             |   5 +
 fs/xfs/xfs_buf.c            |  10 +-
 fs/xfs/xfs_file.c           |   9 +-
 fs/xfs/xfs_fsops.c          |   3 +
 fs/xfs/xfs_inode.c          |  69 ++++++-
 fs/xfs/xfs_inode.h          |   1 +
 fs/xfs/xfs_iomap.c          |  46 ++++-
 fs/xfs/xfs_iomap.h          |   3 +
 fs/xfs/xfs_mount.h          |   1 +
 fs/xfs/xfs_notify_failure.c | 220 ++++++++++++++++++++
 fs/xfs/xfs_reflink.c        |  12 +-
 fs/xfs/xfs_super.h          |   1 +
 include/linux/dax.h         |  56 ++++-
 include/linux/fs.h          |  12 +-
 include/linux/memremap.h    |  12 ++
 include/linux/mm.h          |   2 +
 include/linux/page-flags.h  |   6 +
 mm/memory-failure.c         | 257 ++++++++++++++++-------
 26 files changed, 1087 insertions(+), 182 deletions(-)
 create mode 100644 fs/xfs/xfs_notify_failure.c

-- 
2.35.1