total_mmap 123 tools/testing/selftests/net/tcp_mmap.c unsigned long total_mmap = 0, total = 0; total_mmap 168 tools/testing/selftests/net/tcp_mmap.c total_mmap += zc.length; total_mmap 213 tools/testing/selftests/net/tcp_mmap.c 100.0*total_mmap/total,