[git pull] vfs.git fixes

[Al Viro <viro@zeniv.linux.org.uk>]

Assorted fixes all over the place; iov_iter one is this cycle regression
(splice from UDP triggering WARN_ON()), the rest is older.

The following changes since commit 651022382c7f8da46cb4872a545ee1da6d097d2a:

  Linux 4.20-rc1 (2018-11-04 15:37:52 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git fixes

for you to fetch changes up to 73116df7bb90435ccb2817f44113295240d15034:

  afs: Use d_instantiate() rather than d_add() and don't d_drop() (2018-11-29 21:08:14 -0500)

----------------------------------------------------------------
Al Viro (1):
      iov_iter: teach csum_and_copy_to_iter() to handle pipe-backed ones

David Howells (3):
      afs: Fix validation/callback interaction
      afs: Fix missing net error handling
      afs: Use d_instantiate() rather than d_add() and don't d_drop()

Jens Axboe (1):
      aio: fix failure to put the file pointer

Pan Bian (1):
      exportfs: do not read dentry after free

YueHaibing (2):
      sysv: return 'err' instead of 0 in __sysv_write_inode
      exportfs: fix 'passing zero to ERR_PTR()' warning

 fs/afs/dir.c        |  4 +---
 fs/afs/fs_probe.c   | 39 ++++++++++++++++++++++++---------------
 fs/afs/inode.c      | 18 ++++++++++++------
 fs/afs/internal.h   |  9 +++++++++
 fs/afs/misc.c       | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/afs/rotate.c     | 53 +++++++++++++----------------------------------------
 fs/afs/vl_probe.c   | 45 +++++++++++++++++++++++++++------------------
 fs/afs/vl_rotate.c  | 50 ++++++++++----------------------------------------
 fs/aio.c            |  1 +
 fs/exportfs/expfs.c |  3 ++-
 fs/sysv/inode.c     |  2 +-
 lib/iov_iter.c      | 38 +++++++++++++++++++++++++++++++++++++-
 12 files changed, 189 insertions(+), 125 deletions(-)