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144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
/*
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* Copyright 2000 Hans Reiser
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* See README for licensing and copyright details
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*
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* Ported to FreeBSD by Jean-Sébastien Pédron <jspedron@club-internet.fr>
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*
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* $FreeBSD$
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*/
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#ifndef _GNU_REISERFS_REISERFS_FS_SB_H
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#define _GNU_REISERFS_REISERFS_FS_SB_H
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typedef uint32_t (*hashf_t)(const signed char *, int);
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#define sb_block_count(sbp) (le32toh((sbp)->s_v1.s_block_count))
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#define set_sb_block_count(sbp,v) ((sbp)->s_v1.s_block_count = htole32(v))
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#define sb_free_blocks(sbp) (le32toh((sbp)->s_v1.s_free_blocks))
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#define set_sb_free_blocks(sbp,v) ((sbp)->s_v1.s_free_blocks = htole32(v))
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#define sb_root_block(sbp) (le32toh((sbp)->s_v1.s_root_block))
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/* Bitmaps */
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struct reiserfs_bitmap_info {
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uint16_t first_zero_hint;
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uint16_t free_count;
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//struct buf *bp; /* The actual bitmap */
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caddr_t bp_data; /* The actual bitmap */
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};
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/* ReiserFS union of in-core super block data */
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struct reiserfs_sb_info {
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struct reiserfs_super_block *s_rs;
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struct reiserfs_bitmap_info *s_ap_bitmap;
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struct vnode *s_devvp;
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unsigned short s_mount_state;
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hashf_t s_hash_function; /* Pointer to function which
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is used to sort names in
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directory. Set on mount */
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unsigned long s_mount_opt; /* ReiserFS's mount options
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are set here */
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int s_generation_counter; /* Increased by one every
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time the tree gets
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re-balanced */
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unsigned long s_properties; /* File system properties.
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Currently holds on-disk
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FS format */
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uint16_t s_blocksize;
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uint16_t s_blocksize_bits;
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char s_rd_only; /* Is it read-only ? */
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int s_is_unlinked_ok;
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};
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#define sb_version(sbi) (le16toh((sbi)->s_v1.s_version))
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#define set_sb_version(sbi, v) ((sbi)->s_v1.s_version = htole16(v))
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#define sb_blocksize(sbi) (le16toh((sbi)->s_v1.s_blocksize))
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#define set_sb_blocksize(sbi, v) ((sbi)->s_v1.s_blocksize = htole16(v))
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#define sb_hash_function_code(sbi) \
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(le32toh((sbi)->s_v1.s_hash_function_code))
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#define set_sb_hash_function_code(sbi, v) \
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((sbi)->s_v1.s_hash_function_code = htole32(v))
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#define sb_bmap_nr(sbi) (le16toh((sbi)->s_v1.s_bmap_nr))
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#define set_sb_bmap_nr(sbi, v) ((sbi)->s_v1.s_bmap_nr = htole16(v))
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/* Definitions of reiserfs on-disk properties: */
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#define REISERFS_3_5 0
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#define REISERFS_3_6 1
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enum reiserfs_mount_options {
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/* Mount options */
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REISERFS_LARGETAIL, /* Large tails will be created in a session */
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REISERFS_SMALLTAIL, /* Small (for files less than block size) tails
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will be created in a session */
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REPLAYONLY, /* Replay journal and return 0. Use by fsck */
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REISERFS_CONVERT, /* -o conv: causes conversion of old format super
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block to the new format. If not specified -
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old partition will be dealt with in a manner
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of 3.5.x */
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/*
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* -o hash={tea, rupasov, r5, detect} is meant for properly mounting
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* reiserfs disks from 3.5.19 or earlier. 99% of the time, this option
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* is not required. If the normal autodection code can't determine
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* which hash to use (because both hases had the same value for a
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* file) use this option to force a specific hash. It won't allow you
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* to override the existing hash on the FS, so if you have a tea hash
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* disk, and mount with -o hash=rupasov, the mount will fail.
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*/
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FORCE_TEA_HASH, /* try to force tea hash on mount */
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FORCE_RUPASOV_HASH, /* try to force rupasov hash on mount */
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FORCE_R5_HASH, /* try to force rupasov hash on mount */
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FORCE_HASH_DETECT, /* try to detect hash function on mount */
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REISERFS_DATA_LOG,
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REISERFS_DATA_ORDERED,
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REISERFS_DATA_WRITEBACK,
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/*
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* used for testing experimental features, makes benchmarking new
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* features with and without more convenient, should never be used by
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* users in any code shipped to users (ideally)
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*/
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REISERFS_NO_BORDER,
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REISERFS_NO_UNHASHED_RELOCATION,
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REISERFS_HASHED_RELOCATION,
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REISERFS_ATTRS,
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REISERFS_XATTRS,
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REISERFS_XATTRS_USER,
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REISERFS_POSIXACL,
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REISERFS_TEST1,
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REISERFS_TEST2,
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REISERFS_TEST3,
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REISERFS_TEST4,
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};
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#define reiserfs_r5_hash(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_R5_HASH))
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#define reiserfs_rupasov_hash(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_RUPASOV_HASH))
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#define reiserfs_tea_hash(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_TEA_HASH))
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#define reiserfs_hash_detect(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_HASH_DETECT))
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#define reiserfs_attrs(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_ATTRS))
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#define reiserfs_data_log(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_LOG))
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#define reiserfs_data_ordered(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_ORDERED))
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#define reiserfs_data_writeback(sbi) \
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(REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK))
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#define SB_BUFFER_WITH_SB(sbi) (REISERFS_SB(sbi)->s_sbh)
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#define SB_AP_BITMAP(sbi) (REISERFS_SB(sbi)->s_ap_bitmap)
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#endif /* !defined _GNU_REISERFS_REISERFS_FS_SB_H */
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