diff options
Diffstat (limited to 'fs/bcachefs/bcachefs_format.h')
| -rw-r--r-- | fs/bcachefs/bcachefs_format.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/fs/bcachefs/bcachefs_format.h b/fs/bcachefs/bcachefs_format.h index 13285936dd2d..4577d77a9f38 100644 --- a/fs/bcachefs/bcachefs_format.h +++ b/fs/bcachefs/bcachefs_format.h @@ -336,7 +336,9 @@ static inline void bkey_init(struct bkey *k) x(xattr, 11) \ x(alloc, 12) \ x(quota, 13) \ - x(stripe, 14) + x(stripe, 14) \ + x(reflink_p, 15) \ + x(reflink_v, 16) enum bch_bkey_type { #define x(name, nr) KEY_TYPE_##name = nr, @@ -655,7 +657,7 @@ struct bch_reservation { /* Maximum possible size of an entire extent value: */ #define BKEY_EXTENT_VAL_U64s_MAX \ - (BKEY_EXTENT_PTR_U64s_MAX * (BCH_REPLICAS_MAX + 1)) + (1 + BKEY_EXTENT_PTR_U64s_MAX * (BCH_REPLICAS_MAX + 1)) #define BKEY_PADDED(key) __BKEY_PADDED(key, BKEY_EXTENT_VAL_U64s_MAX) @@ -891,6 +893,24 @@ struct bch_stripe { struct bch_extent_ptr ptrs[0]; } __attribute__((packed, aligned(8))); +/* Reflink: */ + +struct bch_reflink_p { + struct bch_val v; + __le64 idx; + + __le32 reservation_generation; + __u8 nr_replicas; + __u8 pad[3]; +}; + +struct bch_reflink_v { + struct bch_val v; + __le64 refcount; + union bch_extent_entry start[0]; + __u64 _data[0]; +}; + /* Optional/variable size superblock sections: */ struct bch_sb_field { @@ -1293,6 +1313,7 @@ enum bch_sb_features { BCH_FEATURE_ATOMIC_NLINK = 3, /* should have gone under compat */ BCH_FEATURE_EC = 4, BCH_FEATURE_JOURNAL_SEQ_BLACKLIST_V3 = 5, + BCH_FEATURE_REFLINK = 6, BCH_FEATURE_NR, }; @@ -1480,7 +1501,8 @@ LE32_BITMASK(JSET_BIG_ENDIAN, struct jset, flags, 4, 5); x(XATTRS, 3, "xattrs") \ x(ALLOC, 4, "alloc") \ x(QUOTAS, 5, "quotas") \ - x(EC, 6, "erasure_coding") + x(EC, 6, "erasure_coding") \ + x(REFLINK, 7, "reflink") enum btree_id { #define x(kwd, val, name) BTREE_ID_##kwd = val, |