#ifndef _MSDOS_FS_SB#define _MSDOS_FS_SB/* * MS-DOS file system in-core superblock data */struct msdos_sb_info {	unsigned short cluster_size; /* sectors/cluster */	unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */	unsigned short fat_start,fat_length; /* FAT start & length (sec.) */	unsigned short dir_start,dir_entries; /* root dir start & entries */	unsigned short data_start;   /* first data sector */	unsigned long clusters;      /* number of clusters */	uid_t fs_uid;	gid_t fs_gid;	int quiet; /* fake successful chmods and chowns */	unsigned short fs_umask;	unsigned char name_check; /* r = relaxed, n = normal, s = strict */	unsigned char conversion; /* b = binary, t = text, a = auto */	struct wait_queue *fat_wait;	int fat_lock;	int prev_free; /* previously returned free cluster number */	int free_clusters; /* -1 if undefined */};#endif