empty             244 fs.c             struct inode *ip, *empty;
empty             249 fs.c             empty = 0;
empty             256 fs.c               if(empty == 0 && ip->ref == 0)    // Remember empty slot.
empty             257 fs.c                 empty = ip;
empty             261 fs.c             if(empty == 0)
empty             264 fs.c             ip = empty;