Red Hat Gluster Storage does not currently support SELinux Labeled mounts.
On a FUSE mount, SELinux cannot currently distinguish file systems by subtype, and therefore cannot distinguish between different FUSE file systems (BZ#1291606). This means that a client-specific policy for Red Hat Gluster Storage cannot be defined, and SELinux cannot safely translate client-side extended attributes for files tracked by Red Hat Gluster Storage.
A workaround is in progress for NFS-Ganesha mounts as part of BZ#1269584. When complete, BZ#1269584 will enable Red Hat Gluster Storage support for NFS version 4.2, including SELinux Labeled support.