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/*
* 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 */
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