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Diffstat (limited to 'sys/gnu/fs/reiserfs/reiserfs_fs_sb.h')
| -rw-r--r-- | sys/gnu/fs/reiserfs/reiserfs_fs_sb.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/sys/gnu/fs/reiserfs/reiserfs_fs_sb.h b/sys/gnu/fs/reiserfs/reiserfs_fs_sb.h new file mode 100644 index 0000000..982729b --- /dev/null +++ b/sys/gnu/fs/reiserfs/reiserfs_fs_sb.h @@ -0,0 +1,143 @@ +/* + * Copyright 2000 Hans Reiser + * See README for licensing and copyright details + * + * Ported to FreeBSD by Jean-Sébastien Pédron <jspedron@club-internet.fr> + * + * $FreeBSD$ + */ + +#ifndef _GNU_REISERFS_REISERFS_FS_SB_H +#define _GNU_REISERFS_REISERFS_FS_SB_H + +typedef uint32_t (*hashf_t)(const signed char *, int); + +#define sb_block_count(sbp) (le32toh((sbp)->s_v1.s_block_count)) +#define set_sb_block_count(sbp,v) ((sbp)->s_v1.s_block_count = htole32(v)) +#define sb_free_blocks(sbp) (le32toh((sbp)->s_v1.s_free_blocks)) +#define set_sb_free_blocks(sbp,v) ((sbp)->s_v1.s_free_blocks = htole32(v)) +#define sb_root_block(sbp) (le32toh((sbp)->s_v1.s_root_block)) + +/* Bitmaps */ +struct reiserfs_bitmap_info { + uint16_t first_zero_hint; + uint16_t free_count; + //struct buf *bp; /* The actual bitmap */ + caddr_t bp_data; /* The actual bitmap */ +}; + +/* ReiserFS union of in-core super block data */ +struct reiserfs_sb_info { + struct reiserfs_super_block *s_rs; + struct reiserfs_bitmap_info *s_ap_bitmap; + struct vnode *s_devvp; + + unsigned short s_mount_state; + + hashf_t s_hash_function; /* Pointer to function which + is used to sort names in + directory. Set on mount */ + unsigned long s_mount_opt; /* ReiserFS's mount options + are set here */ + int s_generation_counter; /* Increased by one every + time the tree gets + re-balanced */ + unsigned long s_properties; /* File system properties. + Currently holds on-disk + FS format */ + uint16_t s_blocksize; + uint16_t s_blocksize_bits; + char s_rd_only; /* Is it read-only ? */ + int s_is_unlinked_ok; +}; + +#define sb_version(sbi) (le16toh((sbi)->s_v1.s_version)) +#define set_sb_version(sbi, v) ((sbi)->s_v1.s_version = htole16(v)) + +#define sb_blocksize(sbi) (le16toh((sbi)->s_v1.s_blocksize)) +#define set_sb_blocksize(sbi, v) ((sbi)->s_v1.s_blocksize = htole16(v)) + +#define sb_hash_function_code(sbi) \ + (le32toh((sbi)->s_v1.s_hash_function_code)) +#define set_sb_hash_function_code(sbi, v) \ + ((sbi)->s_v1.s_hash_function_code = htole32(v)) + +#define sb_bmap_nr(sbi) (le16toh((sbi)->s_v1.s_bmap_nr)) +#define set_sb_bmap_nr(sbi, v) ((sbi)->s_v1.s_bmap_nr = htole16(v)) + +/* Definitions of reiserfs on-disk properties: */ +#define REISERFS_3_5 0 +#define REISERFS_3_6 1 + +enum reiserfs_mount_options { + /* Mount options */ + REISERFS_LARGETAIL, /* Large tails will be created in a session */ + REISERFS_SMALLTAIL, /* Small (for files less than block size) tails + will be created in a session */ + REPLAYONLY, /* Replay journal and return 0. Use by fsck */ + REISERFS_CONVERT, /* -o conv: causes conversion of old format super + block to the new format. If not specified - + old partition will be dealt with in a manner + of 3.5.x */ + + /* + * -o hash={tea, rupasov, r5, detect} is meant for properly mounting + * reiserfs disks from 3.5.19 or earlier. 99% of the time, this option + * is not required. If the normal autodection code can't determine + * which hash to use (because both hases had the same value for a + * file) use this option to force a specific hash. It won't allow you + * to override the existing hash on the FS, so if you have a tea hash + * disk, and mount with -o hash=rupasov, the mount will fail. + */ + FORCE_TEA_HASH, /* try to force tea hash on mount */ + FORCE_RUPASOV_HASH, /* try to force rupasov hash on mount */ + FORCE_R5_HASH, /* try to force rupasov hash on mount */ + FORCE_HASH_DETECT, /* try to detect hash function on mount */ + + REISERFS_DATA_LOG, + REISERFS_DATA_ORDERED, + REISERFS_DATA_WRITEBACK, + + /* + * used for testing experimental features, makes benchmarking new + * features with and without more convenient, should never be used by + * users in any code shipped to users (ideally) + */ + + REISERFS_NO_BORDER, + REISERFS_NO_UNHASHED_RELOCATION, + REISERFS_HASHED_RELOCATION, + REISERFS_ATTRS, + REISERFS_XATTRS, + REISERFS_XATTRS_USER, + REISERFS_POSIXACL, + + REISERFS_TEST1, + REISERFS_TEST2, + REISERFS_TEST3, + REISERFS_TEST4, +}; + +#define reiserfs_r5_hash(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_R5_HASH)) +#define reiserfs_rupasov_hash(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_RUPASOV_HASH)) +#define reiserfs_tea_hash(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_TEA_HASH)) +#define reiserfs_hash_detect(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << FORCE_HASH_DETECT)) + +#define reiserfs_attrs(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_ATTRS)) + +#define reiserfs_data_log(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_LOG)) +#define reiserfs_data_ordered(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_ORDERED)) +#define reiserfs_data_writeback(sbi) \ + (REISERFS_SB(sbi)->s_mount_opt & (1 << REISERFS_DATA_WRITEBACK)) + +#define SB_BUFFER_WITH_SB(sbi) (REISERFS_SB(sbi)->s_sbh) +#define SB_AP_BITMAP(sbi) (REISERFS_SB(sbi)->s_ap_bitmap) + +#endif /* !defined _GNU_REISERFS_REISERFS_FS_SB_H */ |
