Merge tag 'v7.0rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Two multichannel fixes

 - Locking fix for superblock flags

 - Fix to remove debug message that could log password

 - Cleanup fix for setting credentials

* tag 'v7.0rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: Use snprintf in cifs_set_cifscreds
  smb: client: Don't log plaintext credentials in cifs_set_cifscreds
  smb: client: fix broken multichannel with krb5+signing
  smb: client: use atomic_t for mnt_cifs_flags
  smb: client: fix cifs_pick_channel when channels are equally loaded