strings /proc/$(pidof libvirtd)/maps | grep librbd
7f3f1f906000-7f3f1f958000 r-xp 00000000 08:01 402555                     /opt/kvm-stack-1/lib/librbd.so.1.0.0
7f3f1f958000-7f3f1fb58000 ---p 00052000 08:01 402555                     /opt/kvm-stack-1/lib/librbd.so.1.0.0
7f3f1fb58000-7f3f1fb5a000 rw-p 00052000 08:01 402555                     /opt/kvm-stack-1/lib/librbd.so.1.0.0