filealloc          29 kernel/defs.h  struct file*    filealloc(void);
filealloc          29 kernel/pipe.c    if((*f0 = filealloc()) == 0 || (*f1 = filealloc()) == 0)
filealloc         344 kernel/sysfile.c   if((f = filealloc()) == 0 || (fd = fdalloc(f)) < 0){