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72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* linux/include/linux/ext3_fs_sb.h
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*
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* Copyright (C) 1992, 1993, 1994, 1995
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* Remy Card (card@masi.ibp.fr)
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* Laboratoire MASI - Institut Blaise Pascal
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* Universite Pierre et Marie Curie (Paris VI)
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*
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* from
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*
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* linux/include/linux/minix_fs_sb.h
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*
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* Copyright (C) 1991, 1992 Linus Torvalds
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*/
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#ifndef _LINUX_EXT3_FS_SB
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#define _LINUX_EXT3_FS_SB
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#include <linux/types.h>
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#include <linux/rbtree.h>
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/*
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* third extended-fs super-block data in memory
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*/
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struct ext3_gd {
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ext3_fsblk_t block;
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struct ext4_group_desc *gd;
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struct buffer_head *bh;
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};
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struct ext3_sb_info {
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ERESOURCE s_gd_lock;
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struct ext3_gd *s_gd;
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unsigned long s_desc_size; /* size of group desc */
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unsigned long s_gdb_count; /* Number of group descriptor blocks */
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unsigned long s_desc_per_block; /* Number of group descriptors per block */
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unsigned long s_inodes_per_group;/* Number of inodes in a group */
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unsigned long s_inodes_per_block;/* Number of inodes per block */
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unsigned long s_blocks_per_group;/* Number of blocks in a group */
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unsigned long s_groups_count; /* Number of groups in the fs */
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unsigned long s_itb_per_group; /* Number of inode table blocks per group */
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int s_addr_per_block_bits;
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int s_desc_per_block_bits;
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#if 0
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unsigned long s_frag_size; /* Size of a fragment in bytes */
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unsigned long s_frags_per_block;/* Number of fragments per block */
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unsigned long s_frags_per_group;/* Number of fragments in a group */
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unsigned long s_inodes_per_group;/* Number of inodes in a group */
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unsigned long s_itb_per_group; /* Number of inode table blocks per group */
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unsigned long s_desc_per_block; /* Number of group descriptors per block */
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unsigned long s_overhead_last; /* Last calculated overhead */
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unsigned long s_blocks_last; /* Last seen block count */
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#endif
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struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */
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__le32 s_first_ino;
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u32 s_hash_seed[4];
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int s_def_hash_version;
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};
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int ext3_release_dir (struct inode * inode, struct file * filp);
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#endif /* _LINUX_EXT3_FS_SB */
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