/*
   *  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 */

  	unsigned long s_overhead_last;  /* Last calculated overhead */
  	unsigned long s_blocks_last;    /* Last seen block count */

  	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 */