rbd: use snprintf for disk->disk_name
rbd: cleanup: make kfree match kmalloc
libceph: handle new osdmap down/state change en...
rbd: handle online resize of underlying rbd image
ceph: avoid inode lookup on nfs fh reconnect
ceph: use LOOKUPINO to make unconnected nfs fh ...
libceph: subscribe to osdmap when cluster is full