empty             223 fs.c             struct inode *ip, *empty;
empty             228 fs.c             empty = 0;
empty             235 fs.c               if(empty == 0 && ip->ref == 0)    // Remember empty slot.
empty             236 fs.c                 empty = ip;
empty             240 fs.c             if(empty == 0)
empty             243 fs.c             ip = empty;