empty             251 kernel/fs.c      struct inode *ip, *empty;
empty             256 kernel/fs.c      empty = 0;
empty             263 kernel/fs.c        if (empty == 0 && ip->ref == 0) // Remember empty slot.
empty             264 kernel/fs.c          empty = ip;
empty             268 kernel/fs.c      if (empty == 0)
empty             271 kernel/fs.c      ip = empty;