[SRU][Artful][Bionic][PATCH 0/3] Fixes for LP:1747572

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1747572

== SRU Justification ==
CIFS SMB2/SMB3 does not work for domain based DFS.  The bug reporter is 
having problems mounting a domain based DFS share using mount.cifs with the 
parameter vers=2.0 or vers=3.0, even though it works with the deprecated 
version vers=1.0.

This bug was reported and fixed upstream by the requested three commits:
https://bugzilla.samba.org/show_bug.cgi?id=12917

The three requested commits are all in mainline as of v4.16-rc1.

== Fixes ==
b327a717e506 ("CIFS: make IPC a regular tcon")
63a83b861c47 ("CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl")
02cf5905e35d ("CIFS: dump IPC tcon in debug proc file")

== Regression Potential ==
Low.  Limited to cifs.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

Aurelien Aptel (3):
  CIFS: make IPC a regular tcon
  CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl
  CIFS: dump IPC tcon in debug proc file

 fs/cifs/cifs_debug.c |  61 ++++++++++++---------
 fs/cifs/cifsglob.h   |  14 ++---
 fs/cifs/cifssmb.c    |   7 +--
 fs/cifs/connect.c    | 150 ++++++++++++++++++++++++++++++++++++++-------------
 fs/cifs/inode.c      |   2 +-
 fs/cifs/smb2file.c   |   2 +-
 fs/cifs/smb2ops.c    |  53 ++++++++----------
 fs/cifs/smb2pdu.c    |  40 ++++----------
 fs/cifs/smb2proto.h  |   3 +-
 9 files changed, 193 insertions(+), 139 deletions(-)

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2.7.4