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#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 */ |