real_space       1214 fs/reiserfs/inode.c 	loff_t real_space = real_space_diff(inode, sd_size);
real_space       1226 fs/reiserfs/inode.c 	if (bytes < real_space)
real_space       1228 fs/reiserfs/inode.c 	return (bytes - real_space) >> 9;