include/linux/ext2_fs

/* */
   1 /*
   2  *  linux/include/linux/ext2_fs_sb.h
   3  *
   4  *  Copyright (C) 1992, 1993  Remy Card (card@masi.ibp.fr)
   5  *
   6  *  from
   7  *
   8  *  linux/include/linux/minix_fs_sb.h
   9  *
  10  *  Copyright (C) 1991, 1992  Linus Torvalds
  11  */
  12 
  13 #ifndef _LINUX_EXT2_FS_SB
  14 #define _LINUX_EXT2_FS_SB
  15 
  16 #define EXT2_MAX_GROUP_DESC     8
  17 #define EXT2_MAX_GROUP_LOADED   8
  18 
  19 /*
  20  * second extended-fs super-block data in memory
  21  */
  22 struct ext2_sb_info {
  23         unsigned long s_frag_size;      /* Size of a fragment in bytes */
  24         unsigned long s_frags_per_block;/* Number of fragments per block */
  25         unsigned long s_inodes_per_block;/* Number of inodes per block */
  26         unsigned long s_frags_per_group;/* Number of fragments in a group */
  27         unsigned long s_blocks_per_group;/* Number of blocks in a group */
  28         unsigned long s_inodes_per_group;/* Number of inodes in a group */
  29         unsigned long s_desc_per_block; /* Number of group descriptors per block */
  30         unsigned long s_groups_count;   /* Number of groups in the fs */
  31         struct buffer_head * s_sbh;     /* Buffer containing the super block */
  32         struct ext2_super_block * s_es; /* Pointer to the super block in the buffer */
  33         struct buffer_head * s_group_desc[EXT2_MAX_GROUP_DESC];
  34         unsigned short s_loaded_inode_bitmaps;
  35         unsigned short s_loaded_block_bitmaps;
  36         unsigned long s_inode_bitmap_number[EXT2_MAX_GROUP_LOADED];
  37         struct buffer_head * s_inode_bitmap[EXT2_MAX_GROUP_LOADED];
  38         unsigned long s_block_bitmap_number[EXT2_MAX_GROUP_LOADED];
  39         struct buffer_head * s_block_bitmap[EXT2_MAX_GROUP_LOADED];
  40         int s_rename_lock;
  41         struct wait_queue * s_rename_wait;
  42         unsigned long  s_mount_opt;
  43         unsigned short s_mount_state;
  44 };
  45 
  46 #endif  /* _LINUX_EXT2_FS_SB */
/* */
root/include/linux/ext2_fs_sb.h

INCLUDED FROM
