[GIT PULL] writeback error handling fixes for v4.14

[Jeff Layton <jlayton@redhat.com>]

The following changes since commit 5771a8c08880cdca3bfb4a3fc6d309d6bba20877:

  Linux v4.13-rc1 (2017-07-15 15:22:10 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git tags/wberr-v4.14-1

for you to fetch changes up to 6d4b51241394664fffbf68ea86c96d2699344583:

  ecryptfs: convert to file_write_and_wait in ->fsync (2017-08-03 14:20:22 -0400)

----------------------------------------------------------------
This pile continues the work from last cycle on better tracking
writeback errors. In v4.13 we added some basic errseq_t infrastructure
and converted a few filesystems to use it.

This set continues refining that infrastructure, adds documentation, and
converts most of the other filesystems to use it. The main exception at
this point is the NFS client.
----------------------------------------------------------------
Jeff Layton (10):
      errseq: rename __errseq_set to errseq_set
      Documentation: add some docs for errseq_t
      mm: consolidate dax / non-dax checks for writeback
      fuse: convert to errseq_t based error tracking for fsync
      mm: add file_fdatawait_range and file_write_and_wait
      fs: convert sync_file_range to use errseq_t based error-tracking
      gfs2: convert to errseq_t based writeback error reporting for fsync
      fs: convert a pile of fsync routines to errseq_t based reporting
      mm: remove optimizations based on i_size in mapping writeback waits
      ecryptfs: convert to file_write_and_wait in ->fsync

 Documentation/errseq.rst                   | 149 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/powerpc/platforms/cell/spufs/file.c   |   2 +-
 drivers/staging/lustre/lustre/llite/file.c |   2 +-
 drivers/video/fbdev/core/fb_defio.c        |   2 +-
 fs/9p/vfs_file.c                           |   4 ++--
 fs/affs/file.c                             |   2 +-
 fs/afs/write.c                             |   2 +-
 fs/cifs/file.c                             |   4 ++--
 fs/ecryptfs/file.c                         |   2 +-
 fs/exofs/file.c                            |   2 +-
 fs/f2fs/file.c                             |   2 +-
 fs/fuse/file.c                             |   6 +++---
 fs/gfs2/file.c                             |   6 ++++--
 fs/hfs/inode.c                             |   2 +-
 fs/hfsplus/inode.c                         |   2 +-
 fs/hostfs/hostfs_kern.c                    |   2 +-
 fs/hpfs/file.c                             |   2 +-
 fs/jffs2/file.c                            |   2 +-
 fs/jfs/file.c                              |   2 +-
 fs/ncpfs/file.c                            |   2 +-
 fs/ntfs/dir.c                              |   2 +-
 fs/ntfs/file.c                             |   2 +-
 fs/ocfs2/file.c                            |   2 +-
 fs/reiserfs/dir.c                          |   2 +-
 fs/reiserfs/file.c                         |   2 +-
 fs/sync.c                                  |   4 ++--
 fs/ubifs/file.c                            |   2 +-
 include/linux/errseq.h                     |  14 ++++----------
 include/linux/fs.h                         |  20 +++++++++++++++----
 lib/errseq.c                               |  17 +++++++----------
 mm/filemap.c                               |  64 ++++++++++++++++++++++++++++++-------------------------------
 31 files changed, 241 insertions(+), 89 deletions(-)
 create mode 100644 Documentation/errseq.rst
-- 
Jeff Layton <jlayton@redhat.com>