childpid 43 tools/testing/selftests/sync/sync_test.c pid_t childpid; childpid 47 tools/testing/selftests/sync/sync_test.c childpid = fork(); childpid 49 tools/testing/selftests/sync/sync_test.c if (childpid) { childpid 50 tools/testing/selftests/sync/sync_test.c waitpid(childpid, &result, 0); childpid 344 tools/usb/usbip/src/usbipd.c pid_t childpid; childpid 350 tools/usb/usbip/src/usbipd.c childpid = fork(); childpid 351 tools/usb/usbip/src/usbipd.c if (childpid == 0) {