sys-block/fio had automagic deps on sys-cluster/glusterfs and sys-cluster/ceph. While fixing that I had to drop the following keywords: ~arm, ~ia64, ~ppc, ~ppc64. Please re-keyword fio-2.11.1-r1 and the required dependencies "sys-cluster/glusterfs" and "sys-gluster/ceph", or mask the corresponding USE flags "glusterfs" and "rbd" for your arch.
There are some issues on ppc/ppc64. I've keyworded all the deps up to, but excluding sys-block/fio and sys-cluster/ceph.
I keyworded ~ppc and ~ppc64 but I package.use.masked rbd since ceph is broken on ppc64 and has broken deps on ppc.
~arm restored (package.use.masked both flags).
masked both on ia64 http://sources.gentoo.org/profiles/arch/ia64/use.mask?r1=1.112&r2=1.113