Re: [libvirt] [PATCH 2/2] qemu: use -incoming fd:n to avoid qemu holding fd indefinitely

>> Since you are at it, you may also want to replace the usage of netcat >> >> and Unix sockets with "-incoming fd:" and a one-way pipe. > > > > Not sure it's worth it. Is unix:path any less efficient than creating a > > one-way pipe for use by fd:n? Also, we can't replace netcat; the use of > > '-incoming "exec:nc -lU path"' is only used in libvirt that predates > > '-incoming unix:path', which also happens to predate '-incoming fd:n'. Thinking about it more: In the outgoing direction, we still have to use a unix socket (outgoing migration is started via a monitor command, and I don't know how to pass a new fd into qemu for using with an fd:n outgoing migration via the monitor - it seems like fd is only useful on the command line).