144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
/*
|
|
* 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 */
|