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/*

 *  linux/include/linux/ext2_fs_sb.h

 *

 * Copyright (C) 1992, 1993, 1994, 1995

 * Remy Card (card@masi.ibp.fr)

 * Laboratoire MASI - Institut Blaise Pascal

 * Universite Pierre et Marie Curie (Paris VI)

 *

 *  from

 *

 *  linux/include/linux/minix_fs_sb.h

 *

 *  Copyright (C) 1991, 1992  Linus Torvalds

 */

#ifndef _LINUX_EXT2_FS_SB

#define _LINUX_EXT2_FS_SB

#include <linux/ext2_fs.h>

/*

 * The following is not needed anymore since the descriptors buffer

 * heads are now dynamically allocated

 */

/* #define EXT2_MAX_GROUP_DESC  8 */

#define EXT2_MAX_GROUP_LOADED   8

/*

 * second extended-fs super-block data in memory

 */

struct ext2_sb_info {

        unsigned long s_frag_size;      /* Size of a fragment in bytes */

        unsigned long s_frags_per_block;/* Number of fragments per block */

        unsigned long s_inodes_per_block;/* Number of inodes per block */

        unsigned long s_frags_per_group;/* Number of fragments in a group */

        unsigned long s_blocks_per_group;/* Number of blocks in a group */

        unsigned long s_inodes_per_group;/* Number of inodes in a group */

        unsigned long s_itb_per_group;  /* Number of inode table blocks per group */

        unsigned long s_db_per_group;   /* Number of descriptor blocks per group */

        unsigned long s_desc_per_block; /* Number of group descriptors per block */

        unsigned long s_groups_count;   /* Number of groups in the fs */

        struct buffer_head * s_sbh;     /* Buffer containing the super block */

        struct ext2_super_block * s_es; /* Pointer to the super block in the buffer */

        struct buffer_head ** s_group_desc;

        unsigned short s_loaded_inode_bitmaps;

        unsigned short s_loaded_block_bitmaps;

        unsigned long s_inode_bitmap_number[EXT2_MAX_GROUP_LOADED];

        struct buffer_head * s_inode_bitmap[EXT2_MAX_GROUP_LOADED];

        unsigned long s_block_bitmap_number[EXT2_MAX_GROUP_LOADED];

        struct buffer_head * s_block_bitmap[EXT2_MAX_GROUP_LOADED];

        int s_rename_lock;

        struct wait_queue * s_rename_wait;

        unsigned long  s_mount_opt;

        unsigned short s_resuid;

        unsigned short s_resgid;

        unsigned short s_mount_state;

        unsigned short s_pad;

        int s_addr_per_block_bits;

        int s_desc_per_block_bits;

        int s_inode_size;

        int s_first_ino;

};

#endif  /* _LINUX_EXT2_FS_SB */