/* * 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/blockgroup_lock.h> #include <linux/percpu_counter.h> /* * 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_gdb_count; /* Number of group descriptor blocks */ 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 long s_mount_opt; uid_t s_resuid; gid_t 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; spinlock_t s_next_gen_lock; u32 s_next_generation; unsigned long s_dir_count; u8 *s_debts; struct percpu_counter s_freeblocks_counter; struct percpu_counter s_freeinodes_counter; struct percpu_counter s_dirs_counter; struct blockgroup_lock s_blockgroup_lock; }; #endif /* _LINUX_EXT2_FS_SB */