+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_SUPER_IO_H
#define _BCACHEFS_SUPER_IO_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);
+
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 bch_sb_handle *,
enum bch_sb_field_type, unsigned);
-struct bch_sb_field *bch2_fs_sb_field_resize(struct bch_fs *,
- 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)
{ \
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_FIELDS()
extern const char * const bch2_sb_fields[];
-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);
-}
-
-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;
-
- 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);
int bch2_sb_from_fs(struct bch_fs *, struct bch_dev *);
void bch2_free_super(struct bch_sb_handle *);
-int bch2_super_realloc(struct bch_sb_handle *, unsigned);
-
-const char *bch2_sb_validate(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 *);
-void bch2_write_super(struct bch_fs *);
+int bch2_write_super(struct bch_fs *);
+void __bch2_check_set_feature(struct bch_fs *, unsigned);
-/* BCH_SB_FIELD_journal: */
-
-static inline unsigned bch2_nr_journal_buckets(struct bch_sb_field_journal *j)
+static inline void bch2_check_set_feature(struct bch_fs *c, unsigned feat)
{
- return j
- ? (__le64 *) vstruct_end(&j->field) - j->buckets
- : 0;
+ if (!(c->sb.features & (1ULL << feat)))
+ __bch2_check_set_feature(c, feat);
}
/* BCH_SB_FIELD_members: */
static inline bool bch2_member_exists(struct bch_member *m)
{
- return !bch2_is_zero(m->uuid.b, sizeof(uuid_le));
+ return !bch2_is_zero(&m->uuid, sizeof(m->uuid));
}
static inline bool bch2_dev_exists(struct bch_sb *sb,
.bucket_size = le16_to_cpu(mi->bucket_size),
.group = BCH_MEMBER_GROUP(mi),
.state = BCH_MEMBER_STATE(mi),
- .replacement = BCH_MEMBER_REPLACEMENT(mi),
.discard = BCH_MEMBER_DISCARD(mi),
.data_allowed = BCH_MEMBER_DATA_ALLOWED(mi),
- .valid = !bch2_is_zero(mi->uuid.b, sizeof(uuid_le)),
- };
-}
-
-/* BCH_SB_FIELD_replicas: */
-
-bool bch2_replicas_marked(struct bch_fs *, enum bch_data_type,
- struct bch_devs_list);
-bool bch2_bkey_replicas_marked(struct bch_fs *, enum bch_data_type,
- struct bkey_s_c);
-int bch2_mark_replicas(struct bch_fs *, enum bch_data_type,
- struct bch_devs_list);
-int bch2_mark_bkey_replicas(struct bch_fs *, enum bch_data_type,
- struct bkey_s_c);
-
-int bch2_cpu_replicas_to_text(struct bch_replicas_cpu *, char *, size_t);
-int bch2_sb_replicas_to_text(struct bch_sb_field_replicas *, char *, size_t);
-
-struct replicas_status {
- struct {
- unsigned nr_online;
- unsigned nr_offline;
- } replicas[BCH_DATA_NR];
-};
-
-struct replicas_status __bch2_replicas_status(struct bch_fs *,
- struct bch_devs_mask);
-struct replicas_status bch2_replicas_status(struct bch_fs *);
-bool bch2_have_enough_devs(struct replicas_status, unsigned);
-
-unsigned bch2_replicas_online(struct bch_fs *, bool);
-unsigned bch2_dev_has_data(struct bch_fs *, struct bch_dev *);
-
-int bch2_replicas_gc_end(struct bch_fs *, int);
-int bch2_replicas_gc_start(struct bch_fs *, unsigned);
-
-/* iterate over superblock replicas - used by userspace tools: */
-
-static inline struct bch_replicas_entry *
-replicas_entry_next(struct bch_replicas_entry *i)
-{
- return (void *) i + offsetof(struct bch_replicas_entry, devs) + i->nr;
-}
-
-#define for_each_replicas_entry(_r, _i) \
- for (_i = (_r)->entries; \
- (void *) (_i) < vstruct_end(&(_r)->field) && (_i)->data_type;\
- (_i) = replicas_entry_next(_i))
-
-/* disk groups: */
-
-static inline unsigned disk_groups_nr(struct bch_sb_field_disk_groups *groups)
-{
- return groups
- ? (vstruct_end(&groups->field) -
- (void *) &groups->entries[0]) / sizeof(struct bch_disk_group)
- : 0;
-}
-
-struct target {
- enum {
- TARGET_NULL,
- TARGET_DEV,
- TARGET_GROUP,
- } type;
- union {
- unsigned dev;
- unsigned group;
+ .durability = BCH_MEMBER_DURABILITY(mi)
+ ? BCH_MEMBER_DURABILITY(mi) - 1
+ : 1,
+ .freespace_initialized = BCH_MEMBER_FREESPACE_INITIALIZED(mi),
+ .valid = bch2_member_exists(mi),
};
-};
-
-#define TARGET_DEV_START 1
-#define TARGET_GROUP_START (256 + TARGET_DEV_START)
-
-static inline u16 dev_to_target(unsigned dev)
-{
- return TARGET_DEV_START + dev;
-}
-
-static inline u16 group_to_target(unsigned group)
-{
- return TARGET_GROUP_START + group;
}
-static inline struct target target_decode(unsigned target)
-{
- if (target >= TARGET_GROUP_START)
- return (struct target) {
- .type = TARGET_GROUP,
- .group = target - TARGET_GROUP_START
- };
-
- if (target >= TARGET_DEV_START)
- return (struct target) {
- .type = TARGET_DEV,
- .group = target - TARGET_DEV_START
- };
-
- return (struct target) { .type = TARGET_NULL };
-}
+/* BCH_SB_FIELD_clean: */
-static inline bool dev_in_target(struct bch_dev *ca, unsigned target)
-{
- struct target t = target_decode(target);
-
- switch (t.type) {
- case TARGET_NULL:
- return false;
- case TARGET_DEV:
- return ca->dev_idx == t.dev;
- case TARGET_GROUP:
- return ca->mi.group && ca->mi.group - 1 == t.group;
- default:
- BUG();
- }
-}
+void bch2_journal_super_entries_add_common(struct bch_fs *,
+ struct jset_entry **, u64);
-const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned);
+int bch2_sb_clean_validate_late(struct bch_fs *, struct bch_sb_field_clean *, int);
-int __bch2_disk_group_find(struct bch_sb_field_disk_groups *, const char *);
+int bch2_fs_mark_dirty(struct bch_fs *);
+void bch2_fs_mark_clean(struct bch_fs *);
-int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *);
-int bch2_opt_target_print(struct bch_fs *, char *, size_t, u64);
+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 */
projects / bcachefs-tools-debian / blobdiff