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author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-04-10 19:19:09 -0400 |
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committer | Kent Overstreet <kent.overstreet@gmail.com> | 2018-04-10 19:23:58 -0400 |
commit | c598d91dcb0c7e95abdacb2711898ae14ab52ca1 (patch) | |
tree | 645b7838f62826547ea0c830738a88061827c698 /libbcachefs/super-io.h | |
parent | ff5e165532a2eed87700649d03f91a612a58e92a (diff) |
Update bcachefs sources to edf5f38218 bcachefs: Refactor superblock code
Diffstat (limited to 'libbcachefs/super-io.h')
-rw-r--r-- | libbcachefs/super-io.h | 148 |
1 files changed, 7 insertions, 141 deletions
diff --git a/libbcachefs/super-io.h b/libbcachefs/super-io.h index 2514ac8a..f407c205 100644 --- a/libbcachefs/super-io.h +++ b/libbcachefs/super-io.h @@ -11,8 +11,6 @@ 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); #define field_to_type(_f, _name) \ container_of_or_null(_f, struct bch_sb_field_##_name, field) @@ -30,13 +28,6 @@ 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_FIELDS() @@ -44,6 +35,12 @@ BCH_SB_FIELDS() extern const char * const bch2_sb_fields[]; +struct bch_sb_field_ops { + const char * (*validate)(struct bch_sb *, struct bch_sb_field *); + size_t (*to_text)(char *, size_t, struct bch_sb *, + struct bch_sb_field *); +}; + static inline bool bch2_sb_test_feature(struct bch_sb *sb, enum bch_sb_features f) { @@ -90,7 +87,7 @@ 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_super_realloc(struct bch_sb_handle *, unsigned); +int bch2_sb_realloc(struct bch_sb_handle *, unsigned); const char *bch2_sb_validate(struct bch_sb_handle *); @@ -139,135 +136,4 @@ static inline struct bch_member_cpu bch2_mi_to_cpu(struct bch_member *mi) }; } -/* 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; - }; -}; - -#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 }; -} - -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(); - } -} - -static inline bool dev_idx_in_target(struct bch_fs *c, unsigned dev, unsigned target) -{ - bool ret; - - rcu_read_lock(); - ret = dev_in_target(rcu_dereference(c->devs[dev]), target); - rcu_read_unlock(); - - return ret; -} - -const struct bch_devs_mask *bch2_target_to_mask(struct bch_fs *, unsigned); - -int __bch2_disk_group_find(struct bch_sb_field_disk_groups *, const char *); - -int bch2_opt_target_parse(struct bch_fs *, const char *, u64 *); -int bch2_opt_target_print(struct bch_fs *, char *, size_t, u64); - #endif /* _BCACHEFS_SUPER_IO_H */ |