Re: [libvirt] [PATCH v2 4/4] Implement virDomainSendProcessSignal for LXC driver

Implement the new API for sending signals to processes in a guest for the LXC driver. Only support sending signals to the init process for now, because

- The kernel does not appear to expose the mapping between container PID numbers and host PID numbers anywhere in the host OS namespace - There is no race-free validate whether a host PID corresponds

s/validate/way to validate/ ACK