To be more consistent with the source directory name for the
new smb3 server (ksmbd), and to avoid using the word "cifs"
(a very old dialect) when more recent dialects (like SMB3 or
SMB3.1.1) are meant, rename the client directory from
fs/cifs to fs/smbfs. It is already possible to do
"modprobe smb3" or "mount -t smb3 ..."

Note that this does not rename the module itself (cifs.ko)
although that could be done in a future patch.

-- 
Thanks,

Steve