#ifndef _EXT_FS_SB#define _EXT_FS_SB/* * extended-fs super-block data in memory */struct ext_sb_info {			unsigned long s_ninodes;			unsigned long s_nzones;			unsigned long s_firstdatazone;			unsigned long s_log_zone_size;			unsigned long s_max_size;			unsigned long s_firstfreeblocknumber;			unsigned long s_freeblockscount;			struct buffer_head * s_firstfreeblock;			unsigned long s_firstfreeinodenumber;			unsigned long s_freeinodescount;			struct buffer_head * s_firstfreeinodeblock;};#endif