mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-09 00:00:04 +03:00
125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHEFS_SUPER_IO_H
|
|
#define _BCACHEFS_SUPER_IO_H
|
|
|
|
#include "extents.h"
|
|
#include "eytzinger.h"
|
|
#include "super_types.h"
|
|
#include "super.h"
|
|
#include "sb-members.h"
|
|
|
|
#include <asm/byteorder.h>
|
|
|
|
static inline bool bch2_version_compatible(u16 version)
|
|
{
|
|
return BCH_VERSION_MAJOR(version) <= BCH_VERSION_MAJOR(bcachefs_metadata_version_current) &&
|
|
version >= bcachefs_metadata_version_min;
|
|
}
|
|
|
|
void bch2_version_to_text(struct printbuf *, unsigned);
|
|
unsigned bch2_latest_compatible_version(unsigned);
|
|
|
|
u64 bch2_upgrade_recovery_passes(struct bch_fs *c,
|
|
unsigned,
|
|
unsigned);
|
|
|
|
#define field_to_type(_f, _name) \
|
|
container_of_or_null(_f, struct bch_sb_field_##_name, field)
|
|
|
|
struct bch_sb_field *bch2_sb_field_get_id(struct bch_sb *, enum bch_sb_field_type);
|
|
#define bch2_sb_field_get(_sb, _name) \
|
|
field_to_type(bch2_sb_field_get_id(_sb, BCH_SB_FIELD_##_name), _name)
|
|
|
|
struct bch_sb_field *bch2_sb_field_resize_id(struct bch_sb_handle *,
|
|
enum bch_sb_field_type, unsigned);
|
|
#define bch2_sb_field_resize(_sb, _name, _u64s) \
|
|
field_to_type(bch2_sb_field_resize_id(_sb, BCH_SB_FIELD_##_name, _u64s), _name)
|
|
|
|
void bch2_sb_field_delete(struct bch_sb_handle *, enum bch_sb_field_type);
|
|
|
|
extern const char * const bch2_sb_fields[];
|
|
|
|
struct bch_sb_field_ops {
|
|
int (*validate)(struct bch_sb *, struct bch_sb_field *, struct printbuf *);
|
|
void (*to_text)(struct printbuf *, struct bch_sb *, struct bch_sb_field *);
|
|
};
|
|
|
|
static inline __le64 bch2_sb_magic(struct bch_fs *c)
|
|
{
|
|
__le64 ret;
|
|
|
|
memcpy(&ret, &c->sb.uuid, sizeof(ret));
|
|
return ret;
|
|
}
|
|
|
|
static inline __u64 jset_magic(struct bch_fs *c)
|
|
{
|
|
return __le64_to_cpu(bch2_sb_magic(c) ^ JSET_MAGIC);
|
|
}
|
|
|
|
static inline __u64 bset_magic(struct bch_fs *c)
|
|
{
|
|
return __le64_to_cpu(bch2_sb_magic(c) ^ BSET_MAGIC);
|
|
}
|
|
|
|
int bch2_sb_to_fs(struct bch_fs *, struct bch_sb *);
|
|
int bch2_sb_from_fs(struct bch_fs *, struct bch_dev *);
|
|
|
|
void bch2_free_super(struct bch_sb_handle *);
|
|
int bch2_sb_realloc(struct bch_sb_handle *, unsigned);
|
|
|
|
int bch2_read_super(const char *, struct bch_opts *, struct bch_sb_handle *);
|
|
int bch2_write_super(struct bch_fs *);
|
|
void __bch2_check_set_feature(struct bch_fs *, unsigned);
|
|
|
|
static inline void bch2_check_set_feature(struct bch_fs *c, unsigned feat)
|
|
{
|
|
if (!(c->sb.features & (1ULL << feat)))
|
|
__bch2_check_set_feature(c, feat);
|
|
}
|
|
|
|
/* BCH_SB_FIELD_members_v1: */
|
|
|
|
static inline bool bch2_member_exists(struct bch_member *m)
|
|
{
|
|
return !bch2_is_zero(&m->uuid, sizeof(m->uuid));
|
|
}
|
|
|
|
static inline bool bch2_dev_exists(struct bch_sb *sb,
|
|
unsigned dev)
|
|
{
|
|
if (dev < sb->nr_devices) {
|
|
struct bch_member m = bch2_sb_member_get(sb, dev);
|
|
return bch2_member_exists(&m);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static inline struct bch_member_cpu bch2_mi_to_cpu(struct bch_member *mi)
|
|
{
|
|
return (struct bch_member_cpu) {
|
|
.nbuckets = le64_to_cpu(mi->nbuckets),
|
|
.first_bucket = le16_to_cpu(mi->first_bucket),
|
|
.bucket_size = le16_to_cpu(mi->bucket_size),
|
|
.group = BCH_MEMBER_GROUP(mi),
|
|
.state = BCH_MEMBER_STATE(mi),
|
|
.discard = BCH_MEMBER_DISCARD(mi),
|
|
.data_allowed = BCH_MEMBER_DATA_ALLOWED(mi),
|
|
.durability = BCH_MEMBER_DURABILITY(mi)
|
|
? BCH_MEMBER_DURABILITY(mi) - 1
|
|
: 1,
|
|
.freespace_initialized = BCH_MEMBER_FREESPACE_INITIALIZED(mi),
|
|
.valid = bch2_member_exists(mi),
|
|
};
|
|
}
|
|
|
|
void bch2_sb_maybe_downgrade(struct bch_fs *);
|
|
void bch2_sb_upgrade(struct bch_fs *, unsigned);
|
|
|
|
void bch2_sb_field_to_text(struct printbuf *, struct bch_sb *,
|
|
struct bch_sb_field *);
|
|
void bch2_sb_layout_to_text(struct printbuf *, struct bch_sb_layout *);
|
|
void bch2_sb_to_text(struct printbuf *, struct bch_sb *, bool, unsigned);
|
|
|
|
#endif /* _BCACHEFS_SUPER_IO_H */
|