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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * linux/include/linux/ext3_fs_sb.h |
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| 3 | * |
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| 4 | * Copyright (C) 1992, 1993, 1994, 1995 |
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| 5 | * Remy Card (card@masi.ibp.fr) |
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| 6 | * Laboratoire MASI - Institut Blaise Pascal |
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| 7 | * Universite Pierre et Marie Curie (Paris VI) |
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| 8 | * |
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| 9 | * from |
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| 10 | * |
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| 11 | * linux/include/linux/minix_fs_sb.h |
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| 12 | * |
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| 13 | * Copyright (C) 1991, 1992 Linus Torvalds |
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| 14 | */ |
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| 15 | |||
| 16 | #ifndef _LINUX_EXT3_FS_SB |
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| 17 | #define _LINUX_EXT3_FS_SB |
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| 18 | |||
| 19 | #ifdef __KERNEL__ |
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| 20 | #include <linux/timer.h> |
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| 21 | #include <linux/wait.h> |
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| 22 | #include <linux/blockgroup_lock.h> |
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| 23 | #include <linux/percpu_counter.h> |
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| 24 | #endif |
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| 25 | |||
| 26 | /* |
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| 27 | * third extended-fs super-block data in memory |
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| 28 | */ |
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| 29 | struct ext3_sb_info { |
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| 30 | unsigned long s_frag_size; /* Size of a fragment in bytes */ |
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| 31 | unsigned long s_frags_per_block;/* Number of fragments per block */ |
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| 32 | unsigned long s_inodes_per_block;/* Number of inodes per block */ |
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| 33 | unsigned long s_frags_per_group;/* Number of fragments in a group */ |
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| 34 | unsigned long s_blocks_per_group;/* Number of blocks in a group */ |
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| 35 | unsigned long s_inodes_per_group;/* Number of inodes in a group */ |
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| 36 | unsigned long s_itb_per_group; /* Number of inode table blocks per group */ |
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| 37 | unsigned long s_gdb_count; /* Number of group descriptor blocks */ |
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| 38 | unsigned long s_desc_per_block; /* Number of group descriptors per block */ |
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| 39 | unsigned long s_groups_count; /* Number of groups in the fs */ |
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| 40 | struct buffer_head * s_sbh; /* Buffer containing the super block */ |
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| 41 | struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */ |
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| 42 | struct buffer_head ** s_group_desc; |
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| 43 | unsigned long s_mount_opt; |
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| 44 | uid_t s_resuid; |
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| 45 | gid_t s_resgid; |
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| 46 | unsigned short s_mount_state; |
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| 47 | unsigned short s_pad; |
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| 48 | int s_addr_per_block_bits; |
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| 49 | int s_desc_per_block_bits; |
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| 50 | int s_inode_size; |
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| 51 | int s_first_ino; |
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| 52 | u32 s_next_generation; |
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| 53 | u32 s_hash_seed[4]; |
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| 54 | int s_def_hash_version; |
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| 55 | u8 *s_debts; |
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| 56 | struct percpu_counter s_freeblocks_counter; |
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| 57 | struct percpu_counter s_freeinodes_counter; |
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| 58 | struct percpu_counter s_dirs_counter; |
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| 59 | struct blockgroup_lock s_blockgroup_lock; |
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| 60 | |||
| 61 | /* Journaling */ |
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| 62 | struct inode * s_journal_inode; |
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| 63 | struct journal_s * s_journal; |
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| 64 | struct list_head s_orphan; |
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| 65 | unsigned long s_commit_interval; |
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| 66 | struct block_device *journal_bdev; |
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| 67 | #ifdef CONFIG_JBD_DEBUG |
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| 68 | struct timer_list turn_ro_timer; /* For turning read-only (crash simulation) */ |
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| 69 | wait_queue_head_t ro_wait_queue; /* For people waiting for the fs to go read-only */ |
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| 70 | #endif |
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| 71 | }; |
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| 72 | |||
| 73 | #endif /* _LINUX_EXT3_FS_SB */ |