struct super_block {
	struct list_head	s_list;		/* Keep this first */
	kdev_t			s_dev;
	unsigned long		s_blocksize;
	unsigned char		s_blocksize_bits;
	unsigned char		s_lock;
	unsigned char		s_rd_only;
	unsigned char		s_dirt;
	struct file_system_type	*s_type;
	struct super_operations	*s_op;
	struct dquot_operations	*dq_op;
	unsigned long		s_flags;
	unsigned long		s_magic;
	unsigned long		s_time;
	struct dentry		*s_root;
	struct wait_queue	*s_wait;

	struct inode		*s_ibasket;
	short int		s_ibasket_count;
	short int		s_ibasket_max;
	struct list_head	s_dirty;	/* dirty inodes */

	union {
		struct minix_sb_info	minix_sb;
		struct ext2_sb_info	ext2_sb;
	/* .... información especifica en función del filesystem */
		struct adfs_sb_info	adfs_sb;
		struct qnx4_sb_info	qnx4_sb;	   
		void			*generic_sbp;
	} u;
};