[GIT PULL] afs: Fixes

[David Howells]

Hi Linus,

Can you pull these afs fixes please?

 (1) Fix the CB.ProbeUuid handler to generate its reply correctly.

 (2) Fix a mix up in indices when parsing a Volume Location entry record.

 (3) Fix a potential NULL-pointer deref when cleaning up a read request.

 (4) Fix the expected data version of the destination directory in
     afs_rename().

 (5) Fix afs_d_revalidate() to only update d_fsdata if it's not the same as
     the directory data version to reduce the likelihood of overwriting the
     result of a competing operation.  (d_fsdata carries the directory DV
     or the least-significant word thereof).

 (6) Fix the tracking of the data-version on a directory and make sure that
     dentry objects get properly initialised, updated and revalidated.

     Also fix rename to update d_fsdata to match the new directory's DV if
     the dentry gets moved over and unhash the dentry to stop
     afs_d_revalidate() from interfering.

David
---
The following changes since commit 2a11c76e5301dddefcb618dac04f74e6314df6bc:

  Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost (2019-07-29 11:34:12 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git tags/afs-fixes-20190814

for you to fetch changes up to 9dd0b82ef530cdfe805c9f7079c99e104be59a14:

  afs: Fix missing dentry data version updating (2019-07-30 14:38:52 +0100)

----------------------------------------------------------------
AFS Fixes

Reviewed-by: Marc Dionne <marc.dionne@xxxxxxxxxxxx>

----------------------------------------------------------------
David Howells (4):
      afs: Fix the CB.ProbeUuid service handler to reply correctly
      afs: Fix off-by-one in afs_rename() expected data version calculation
      afs: Only update d_fsdata if different in afs_d_revalidate()
      afs: Fix missing dentry data version updating

Jia-Ju Bai (1):
      fs: afs: Fix a possible null-pointer dereference in afs_put_read()

Marc Dionne (1):
      afs: Fix loop index mixup in afs_deliver_vl_get_entry_by_name_u()

 fs/afs/cmservice.c | 10 ++----
 fs/afs/dir.c       | 89 ++++++++++++++++++++++++++++++++++++++++++++----------
 fs/afs/file.c      | 12 +++++---
 fs/afs/vlclient.c  | 11 ++++---
 4 files changed, 89 insertions(+), 33 deletions(-)