diff options
Diffstat (limited to 'libbcachefs/btree_io.h')
| -rw-r--r-- | libbcachefs/btree_io.h | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/libbcachefs/btree_io.h b/libbcachefs/btree_io.h index 16ce6dff..9c14cd30 100644 --- a/libbcachefs/btree_io.h +++ b/libbcachefs/btree_io.h @@ -189,8 +189,8 @@ void bch2_btree_flush_all_writes(struct bch_fs *); void bch2_dirty_btree_nodes_to_text(struct printbuf *, struct bch_fs *); static inline void compat_bformat(unsigned level, enum btree_id btree_id, - unsigned version, unsigned big_endian, - int write, struct bkey_format *f) + unsigned version, unsigned big_endian, + int write, struct bkey_format *f) { if (version < bcachefs_metadata_version_inode_btree_change && btree_id == BTREE_ID_inodes) { @@ -199,6 +199,16 @@ static inline void compat_bformat(unsigned level, enum btree_id btree_id, swap(f->field_offset[BKEY_FIELD_INODE], f->field_offset[BKEY_FIELD_OFFSET]); } + + if (version < bcachefs_metadata_version_snapshot && + (level || btree_type_has_snapshots(btree_id))) { + u64 max_packed = + ~(~0ULL << f->bits_per_field[BKEY_FIELD_SNAPSHOT]); + + f->field_offset[BKEY_FIELD_SNAPSHOT] = write + ? 0 + : U32_MAX - max_packed; + } } static inline void compat_bpos(unsigned level, enum btree_id btree_id, @@ -220,18 +230,26 @@ static inline void compat_btree_node(unsigned level, enum btree_id btree_id, { if (version < bcachefs_metadata_version_inode_btree_change && btree_node_type_is_extents(btree_id) && - bkey_cmp(bn->min_key, POS_MIN) && + bpos_cmp(bn->min_key, POS_MIN) && write) - bn->min_key = bkey_predecessor(bn->min_key); + bn->min_key = bpos_nosnap_predecessor(bn->min_key); + + if (version < bcachefs_metadata_version_snapshot && + write) + bn->max_key.snapshot = 0; compat_bpos(level, btree_id, version, big_endian, write, &bn->min_key); compat_bpos(level, btree_id, version, big_endian, write, &bn->max_key); + if (version < bcachefs_metadata_version_snapshot && + !write) + bn->max_key.snapshot = U32_MAX; + if (version < bcachefs_metadata_version_inode_btree_change && btree_node_type_is_extents(btree_id) && - bkey_cmp(bn->min_key, POS_MIN) && + bpos_cmp(bn->min_key, POS_MIN) && !write) - bn->min_key = bkey_successor(bn->min_key); + bn->min_key = bpos_nosnap_successor(bn->min_key); } #endif /* _BCACHEFS_BTREE_IO_H */ |