diff options
Diffstat (limited to 'libbcache/super-io.h')
| -rw-r--r-- | libbcache/super-io.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/libbcache/super-io.h b/libbcache/super-io.h deleted file mode 100644 index 1a9bd309..00000000 --- a/libbcache/super-io.h +++ /dev/null @@ -1,159 +0,0 @@ -#ifndef _BCACHE_SUPER_IO_H -#define _BCACHE_SUPER_IO_H - -#include "extents.h" -#include "super_types.h" - -#include <asm/byteorder.h> - -struct bch_sb_field *bch_sb_field_get(struct bch_sb *, enum bch_sb_field_type); -struct bch_sb_field *bch_sb_field_resize(struct bcache_superblock *, - enum bch_sb_field_type, unsigned); -struct bch_sb_field *bch_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) - -#define BCH_SB_FIELD_TYPE(_name) \ -static inline struct bch_sb_field_##_name * \ -bch_sb_get_##_name(struct bch_sb *sb) \ -{ \ - return field_to_type(bch_sb_field_get(sb, \ - BCH_SB_FIELD_##_name), _name); \ -} \ - \ -static inline struct bch_sb_field_##_name * \ -bch_sb_resize_##_name(struct bcache_superblock *sb, unsigned u64s) \ -{ \ - return field_to_type(bch_sb_field_resize(sb, \ - BCH_SB_FIELD_##_name, u64s), _name); \ -} \ - \ -static inline struct bch_sb_field_##_name * \ -bch_fs_sb_resize_##_name(struct bch_fs *c, unsigned u64s) \ -{ \ - return field_to_type(bch_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); - -static inline bool bch_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 bch_sb_set_feature(struct bch_sb *sb, - enum bch_sb_features f) -{ - if (!bch_sb_test_feature(sb, f)) { - unsigned w = f / 64; - unsigned b = f % 64; - - le64_add_cpu(&sb->features[w], 1ULL << b); - } -} - -static inline __le64 bch_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(bch_sb_magic(c) ^ JSET_MAGIC); -} - -static inline __u64 pset_magic(struct bch_fs *c) -{ - return __le64_to_cpu(bch_sb_magic(c) ^ PSET_MAGIC); -} - -static inline __u64 bset_magic(struct bch_fs *c) -{ - return __le64_to_cpu(bch_sb_magic(c) ^ BSET_MAGIC); -} - -static inline struct bch_member_cpu bch_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), - .has_metadata = BCH_MEMBER_HAS_METADATA(mi), - .has_data = BCH_MEMBER_HAS_DATA(mi), - .replacement = BCH_MEMBER_REPLACEMENT(mi), - .discard = BCH_MEMBER_DISCARD(mi), - .valid = !bch_is_zero(mi->uuid.b, sizeof(uuid_le)), - }; -} - -int bch_sb_to_fs(struct bch_fs *, struct bch_sb *); -int bch_sb_from_fs(struct bch_fs *, struct bch_dev *); - -void bch_free_super(struct bcache_superblock *); -int bch_super_realloc(struct bcache_superblock *, unsigned); - -const char *bch_validate_journal_layout(struct bch_sb *, - struct bch_member_cpu); -const char *bch_validate_cache_super(struct bcache_superblock *); - -const char *bch_read_super(struct bcache_superblock *, - struct bch_opts, const char *); -void bch_write_super(struct bch_fs *); - -void bch_check_mark_super_slowpath(struct bch_fs *, - const struct bkey_i *, bool); - -static inline bool bch_check_super_marked(struct bch_fs *c, - const struct bkey_i *k, bool meta) -{ - struct bkey_s_c_extent e = bkey_i_to_s_c_extent(k); - const struct bch_extent_ptr *ptr; - unsigned nr_replicas = 0; - bool ret = true; - - extent_for_each_ptr(e, ptr) { - struct bch_dev *ca = c->devs[ptr->dev]; - - if (ptr->cached) - continue; - - if (!(meta - ? ca->mi.has_metadata - : ca->mi.has_data)) { - ret = false; - break; - } - - nr_replicas++; - } - - if (nr_replicas < - (meta ? c->sb.meta_replicas_have : c->sb.data_replicas_have)) - ret = false; - - return ret; -} - -static inline void bch_check_mark_super(struct bch_fs *c, - const struct bkey_i *k, bool meta) -{ - if (bch_check_super_marked(c, k, meta)) - return; - - bch_check_mark_super_slowpath(c, k, meta); -} - -#endif /* _BCACHE_SUPER_IO_H */ |