-#ifndef _BCACHE_SUPER_IO_H
-#define _BCACHE_SUPER_IO_H
+/* 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 <asm/byteorder.h>
+static inline bool bch2_version_compatible(u16 version)
+{
+ return version <= bcachefs_metadata_version_current &&
+ version >= bcachefs_metadata_version_min;
+}
+
+void bch2_version_to_text(struct printbuf *, unsigned);
+
struct bch_sb_field *bch2_sb_field_get(struct bch_sb *, enum bch_sb_field_type);
-struct bch_sb_field *bch2_sb_field_resize(struct bcache_superblock *,
- enum bch_sb_field_type, unsigned);
-struct bch_sb_field *bch2_fs_sb_field_resize(struct bch_fs *,
- enum bch_sb_field_type, unsigned);
+struct bch_sb_field *bch2_sb_field_resize(struct bch_sb_handle *,
+ enum bch_sb_field_type, unsigned);
+void bch2_sb_field_delete(struct bch_sb_handle *, enum bch_sb_field_type);
#define field_to_type(_f, _name) \
container_of_or_null(_f, struct bch_sb_field_##_name, field)
-#define BCH_SB_FIELD_TYPE(_name) \
+#define x(_name, _nr) \
static inline struct bch_sb_field_##_name * \
bch2_sb_get_##_name(struct bch_sb *sb) \
{ \
} \
\
static inline struct bch_sb_field_##_name * \
-bch2_sb_resize_##_name(struct bcache_superblock *sb, unsigned u64s) \
+bch2_sb_resize_##_name(struct bch_sb_handle *sb, unsigned u64s) \
{ \
return field_to_type(bch2_sb_field_resize(sb, \
BCH_SB_FIELD_##_name, u64s), _name); \
-} \
- \
-static inline struct bch_sb_field_##_name * \
-bch2_fs_sb_resize_##_name(struct bch_fs *c, unsigned u64s) \
-{ \
- return field_to_type(bch2_fs_sb_field_resize(c, \
- BCH_SB_FIELD_##_name, u64s), _name); \
-}
-
-BCH_SB_FIELD_TYPE(journal);
-BCH_SB_FIELD_TYPE(members);
-BCH_SB_FIELD_TYPE(crypt);
-BCH_SB_FIELD_TYPE(replicas);
-
-static inline bool bch2_dev_exists(struct bch_sb *sb,
- struct bch_sb_field_members *mi,
- unsigned dev)
-{
- return dev < sb->nr_devices &&
- !bch2_is_zero(mi->members[dev].uuid.b, sizeof(uuid_le));
}
-static inline bool bch2_sb_test_feature(struct bch_sb *sb,
- enum bch_sb_features f)
-{
- unsigned w = f / 64;
- unsigned b = f % 64;
-
- return le64_to_cpu(sb->features[w]) & (1ULL << b);
-}
+BCH_SB_FIELDS()
+#undef x
-static inline void bch2_sb_set_feature(struct bch_sb *sb,
- enum bch_sb_features f)
-{
- if (!bch2_sb_test_feature(sb, f)) {
- unsigned w = f / 64;
- unsigned b = f % 64;
+extern const char * const bch2_sb_fields[];
- le64_add_cpu(&sb->features[w], 1ULL << b);
- }
-}
+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)
{
return __le64_to_cpu(bch2_sb_magic(c) ^ JSET_MAGIC);
}
-static inline __u64 pset_magic(struct bch_fs *c)
-{
- return __le64_to_cpu(bch2_sb_magic(c) ^ PSET_MAGIC);
-}
-
static inline __u64 bset_magic(struct bch_fs *c)
{
return __le64_to_cpu(bch2_sb_magic(c) ^ BSET_MAGIC);
}
-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),
- .state = BCH_MEMBER_STATE(mi),
- .tier = BCH_MEMBER_TIER(mi),
- .replacement = BCH_MEMBER_REPLACEMENT(mi),
- .discard = BCH_MEMBER_DISCARD(mi),
- .valid = !bch2_is_zero(mi->uuid.b, sizeof(uuid_le)),
- };
-}
-
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 bcache_superblock *);
-int bch2_super_realloc(struct bcache_superblock *, unsigned);
-
-const char *bch2_sb_validate_journal(struct bch_sb *,
- struct bch_member_cpu);
-const char *bch2_sb_validate(struct bcache_superblock *);
+void bch2_free_super(struct bch_sb_handle *);
+int bch2_sb_realloc(struct bch_sb_handle *, unsigned);
-const char *bch2_read_super(struct bcache_superblock *,
- struct bch_opts, const char *);
-void bch2_write_super(struct bch_fs *);
+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 bool replicas_test_dev(struct bch_replicas_cpu_entry *e,
- unsigned dev)
+static inline void bch2_check_set_feature(struct bch_fs *c, unsigned feat)
{
- return (e->devs[dev >> 3] & (1 << (dev & 7))) != 0;
+ if (!(c->sb.features & (1ULL << feat)))
+ __bch2_check_set_feature(c, feat);
}
-static inline void replicas_set_dev(struct bch_replicas_cpu_entry *e,
- unsigned dev)
-{
- e->devs[dev >> 3] |= 1 << (dev & 7);
-}
+/* BCH_SB_FIELD_members: */
-static inline unsigned replicas_dev_slots(struct bch_replicas_cpu *r)
+static inline bool bch2_member_exists(struct bch_member *m)
{
- return (r->entry_size -
- offsetof(struct bch_replicas_cpu_entry, devs)) * 8;
+ return !bch2_is_zero(&m->uuid, sizeof(m->uuid));
}
-static inline struct bch_replicas_cpu_entry *
-cpu_replicas_entry(struct bch_replicas_cpu *r, unsigned i)
+static inline bool bch2_dev_exists(struct bch_sb *sb,
+ struct bch_sb_field_members *mi,
+ unsigned dev)
{
- return (void *) r->entries + r->entry_size * i;
+ return dev < sb->nr_devices &&
+ bch2_member_exists(&mi->members[dev]);
}
-int bch2_check_mark_super_slowpath(struct bch_fs *, struct bkey_s_c_extent,
- enum bch_data_types);
-
-static inline bool replicas_has_extent(struct bch_replicas_cpu *r,
- struct bkey_s_c_extent e,
- enum bch_data_types data_type)
+static inline struct bch_member_cpu bch2_mi_to_cpu(struct bch_member *mi)
{
- const struct bch_extent_ptr *ptr;
- struct bch_replicas_cpu_entry search = {
- .data_type = data_type,
+ 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),
};
- unsigned max_dev = 0;
-
- BUG_ON(!data_type ||
- data_type == BCH_DATA_SB ||
- data_type >= BCH_DATA_NR);
-
- extent_for_each_ptr(e, ptr)
- if (!ptr->cached) {
- max_dev = max_t(unsigned, max_dev, ptr->dev);
- replicas_set_dev(&search, ptr->dev);
- }
-
- return max_dev < replicas_dev_slots(r) &&
- eytzinger0_find(r->entries, r->nr,
- r->entry_size,
- memcmp, &search) < r->nr;
-}
-
-static inline bool bch2_sb_has_replicas(struct bch_fs *c,
- struct bkey_s_c_extent e,
- enum bch_data_types data_type)
-{
- bool ret;
-
- rcu_read_lock();
- ret = replicas_has_extent(rcu_dereference(c->replicas),
- e, data_type);
- rcu_read_unlock();
-
- return ret;
}
-static inline int bch2_check_mark_super(struct bch_fs *c,
- struct bkey_s_c_extent e,
- enum bch_data_types data_type)
-{
- struct bch_replicas_cpu *gc_r;
- bool marked;
-
- rcu_read_lock();
- marked = replicas_has_extent(rcu_dereference(c->replicas),
- e, data_type) &&
- (!(gc_r = rcu_dereference(c->replicas_gc)) ||
- replicas_has_extent(gc_r, e, data_type));
- rcu_read_unlock();
+/* BCH_SB_FIELD_clean: */
- if (marked)
- return 0;
-
- return bch2_check_mark_super_slowpath(c, e, data_type);
-}
-
-struct replicas_status {
- struct {
- unsigned nr_online;
- unsigned nr_offline;
- } replicas[BCH_DATA_NR];
-};
+void bch2_journal_super_entries_add_common(struct bch_fs *,
+ struct jset_entry **, u64);
-struct replicas_status __bch2_replicas_status(struct bch_fs *,
- struct bch_dev *);
-struct replicas_status bch2_replicas_status(struct bch_fs *);
+int bch2_sb_clean_validate_late(struct bch_fs *, struct bch_sb_field_clean *, int);
-unsigned bch2_replicas_online(struct bch_fs *, bool);
-unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
+int bch2_fs_mark_dirty(struct bch_fs *);
+void bch2_fs_mark_clean(struct bch_fs *);
-int bch2_replicas_gc_end(struct bch_fs *, int);
-int bch2_replicas_gc_start(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 /* _BCACHE_SUPER_IO_H */
+#endif /* _BCACHEFS_SUPER_IO_H */
projects / bcachefs-tools-debian / blobdiff