Yes, if i create a memfd, populate it with with a reference from vmsplice, that maps to a mmaped file memory chunk, open it with dlopen through procfs in the ch

Yes, if i create a memfd, populate it with with a reference from vmsplice, that maps to a mmaped file memory chunk, open it with dlopen through procfs in the child process (that i've passed through pipe) will make it happen without any copy. This is what i've been looking for, as the child process is sandboxed and it's good to have a option where there's no need to access the filesystem to work some things out. This is pretty good, thank you. I've passed through vmsplice here and there.. but as i didn't need to use it, i've completely forgot about its existence. So thank you for this good reminder of a great syscall.