wf                505 kernel/sysfile.c   struct file *rf, *wf;
wf                510 kernel/sysfile.c   if (pipealloc(&rf, &wf) < 0)
wf                513 kernel/sysfile.c   if ((fd0 = fdalloc(rf)) < 0 || (fd1 = fdalloc(wf)) < 0) {
wf                517 kernel/sysfile.c     fileclose(wf);
wf                526 kernel/sysfile.c     fileclose(wf);