The sanlock packages provide a shared storage lock manager. Hosts with shared access to a block device or a file can use sanlock to synchronize their activities. VDSM and libvirt use sanlock to synchronize access to shared devices or files. Bug Fix(es) and Enhancement(s): * Support 50 concurrent add_lockspace operations (BZ#1912923) * Expose reading and writing LVB in the python bindings (BZ#1920150)