Merge tag '4.20-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs updates from Steve French:
 "Three smb3 fixes for stable, patches for improved debugging and perf
  gathering, and much improved performance for most metadata operations
  (expanded use of compounding)"

* tag '4.20-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: (46 commits)
  cifs: update internal module version number for cifs.ko to 2.14
  smb3: add debug for unexpected mid cancellation
  cifs: allow calling SMB2_xxx_free(NULL)
  smb3 - clean up debug output displaying network interfaces
  smb3: show number of current open files in /proc/fs/cifs/Stats
  cifs: add support for ioctl on directories
  cifs: fallback to older infolevels on findfirst queryinfo retry
  smb3: do not attempt cifs operation in smb3 query info error path
  smb3: send backup intent on compounded query info
  cifs: track writepages in vfs operation counters
  smb2: fix uninitialized variable bug in smb2_ioctl_query_info
  cifs: add IOCTL for QUERY_INFO passthrough to userspace
  cifs: minor clarification in comments
  CIFS: Print message when attempting a mount
  CIFS: Adds information-level logging function
  cifs: OFD locks do not conflict with eachothers
  CIFS: SMBD: Do not call ib_dereg_mr on invalidated memory registration
  CIFS: pass page offsets on SMB1 read/write
  fs/cifs: fix uninitialised variable warnings
  smb3: add tracepoint for sending lease break responses to server
  ...