Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull SMB3 updates from Steve French:
 "A collection of SMB3 patches adding some reliability features
  (persistent and resilient handles) and improving SMB3 copy offload.

  I will have some additional patches for SMB3 encryption and SMB3.1.1
  signing (important security features), and also for improving SMB3
  persistent handle reconnection (setting ChannelSequence number e.g.)
  that I am still working on but wanted to get this set in since they
  can stand alone"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  Allow copy offload (CopyChunk) across shares
  Add resilienthandles mount parm
  [SMB3] Send durable handle v2 contexts when use of persistent handles required
  [SMB3] Display persistenthandles in /proc/mounts for SMB3 shares if enabled
  [SMB3] Enable checking for continuous availability and persistent handle support
  [SMB3] Add parsing for new mount option controlling persistent handles
  Allow duplicate extents in SMB3 not just SMB3.1.1