+ EBUG_ON(block >= s->nr_blocks);
+ EBUG_ON(csum_idx >= stripe_csums_per_device(s));
+
+ return (void *) s + stripe_csum_offset(s, block, csum_idx);
+}
+
+static inline struct bch_csum stripe_csum_get(struct bch_stripe *s,
+ unsigned block, unsigned csum_idx)
+{
+ struct bch_csum csum = { 0 };
+
+ memcpy(&csum, stripe_csum(s, block, csum_idx), bch_crc_bytes[s->csum_type]);
+ return csum;
+}
+
+static inline void stripe_csum_set(struct bch_stripe *s,
+ unsigned block, unsigned csum_idx,
+ struct bch_csum csum)
+{
+ memcpy(stripe_csum(s, block, csum_idx), &csum, bch_crc_bytes[s->csum_type]);
+}
+
+static inline bool __bch2_ptr_matches_stripe(const struct bch_extent_ptr *stripe_ptr,
+ const struct bch_extent_ptr *data_ptr,
+ unsigned sectors)
+{
+ return data_ptr->dev == stripe_ptr->dev &&
+ data_ptr->gen == stripe_ptr->gen &&
+ data_ptr->offset >= stripe_ptr->offset &&
+ data_ptr->offset < stripe_ptr->offset + sectors;
+}
+
+static inline bool bch2_ptr_matches_stripe(const struct bch_stripe *s,
+ struct extent_ptr_decoded p)
+{
+ unsigned nr_data = s->nr_blocks - s->nr_redundant;
+
+ BUG_ON(!p.has_ec);
+
+ if (p.ec.block >= nr_data)
+ return false;
+
+ return __bch2_ptr_matches_stripe(&s->ptrs[p.ec.block], &p.ptr,
+ le16_to_cpu(s->sectors));
+}
+
+static inline bool bch2_ptr_matches_stripe_m(const struct gc_stripe *m,
+ struct extent_ptr_decoded p)
+{
+ unsigned nr_data = m->nr_blocks - m->nr_redundant;
+
+ BUG_ON(!p.has_ec);
+
+ if (p.ec.block >= nr_data)
+ return false;
+
+ return __bch2_ptr_matches_stripe(&m->ptrs[p.ec.block], &p.ptr,
+ m->sectors);