Hi Experts, I found some userspace code like: fd = open("/dev/zero"); addr = mmap(NULL, len, prot, flag, fd, 0); I want to read kernel's implementation but did not found corresponding implementation to '/dev/zero'. Please give me some hints about the issue. Thanks, -B.M -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ