This is a trimmed down version of a patch that Aurelien sent earlier
(which doesn't add the new reparse point creation code, but does
cleanup and refactor the sfu and the cifs specific unix extensions code
as he suggested).  Note that SFU works fine with SMB3 to Windows
(although note that we haven't changed the defaults, mount
option 'sfu' is not enabled by default).  I tested with this updated
version of the patch.

This cleanup removes cifs specific code from SMB2/SMB3 code paths
    which is cleaner and easier to maintain as the code to handle
    special files is improved.  Below is an example creating special files
    using 'sfu' mount option over SMB3 to Windows (with this patch)
    (Note that to Samba server, support for saving dos attributes
    has to be enabled for the SFU mount option to work).

    In the future this will also make implementation of creating
    special files as reparse points easier (as Windows NFS server does
    for example).

       root@smf-Thinkpad-P51:~# stat -c "%F" /mnt2/char
       character special file

       root@smf-Thinkpad-P51:~# stat -c "%F" /mnt2/block
       block special file


-- 
Thanks,

Steve