[arch-general] CIFS filename reserved characters in 3.18

[Carl Schaefer]

After upgrading to 3.18 I found that my rsync backup to a CIFS
filesystem was failing on filenames that contained reserved characters
in the set :<>|*?\

According to [1] the default strategy for handling these characters
changed in 3.18, but in my experience (and according to [2]) it didn't
work very well.  A patch [3] addressing these problems seems to work for
me.
Carl

[1] https://wiki.samba.org/index.php/SMB3-Linux

[2] https://bugzilla.kernel.org/show_bug.cgi?id=92401

[3] http://article.gmane.org/gmane.linux.kernel.cifs/10512/