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diff --git a/src/ceph/src/osd/ECMsgTypes.h b/src/ceph/src/osd/ECMsgTypes.h
new file mode 100644
index 0000000..bfcb536
--- /dev/null
+++ b/src/ceph/src/osd/ECMsgTypes.h
@@ -0,0 +1,139 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2013 Inktank Storage, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef ECBMSGTYPES_H
+#define ECBMSGTYPES_H
+
+#include "osd_types.h"
+#include "include/buffer.h"
+#include "os/ObjectStore.h"
+#include "boost/tuple/tuple.hpp"
+
+struct ECSubWrite {
+  pg_shard_t from;
+  ceph_tid_t tid;
+  osd_reqid_t reqid;
+  hobject_t soid;
+  pg_stat_t stats;
+  ObjectStore::Transaction t;
+  eversion_t at_version;
+  eversion_t trim_to;
+  eversion_t roll_forward_to;
+  vector<pg_log_entry_t> log_entries;
+  set<hobject_t> temp_added;
+  set<hobject_t> temp_removed;
+  boost::optional<pg_hit_set_history_t> updated_hit_set_history;
+  bool backfill = false;
+  ECSubWrite() : tid(0) {}
+  ECSubWrite(
+    pg_shard_t from,
+    ceph_tid_t tid,
+    osd_reqid_t reqid,
+    hobject_t soid,
+    const pg_stat_t &stats,
+    const ObjectStore::Transaction &t,
+    eversion_t at_version,
+    eversion_t trim_to,
+    eversion_t roll_forward_to,
+    vector<pg_log_entry_t> log_entries,
+    boost::optional<pg_hit_set_history_t> updated_hit_set_history,
+    const set<hobject_t> &temp_added,
+    const set<hobject_t> &temp_removed,
+    bool backfill)
+    : from(from), tid(tid), reqid(reqid),
+      soid(soid), stats(stats), t(t),
+      at_version(at_version),
+      trim_to(trim_to), roll_forward_to(roll_forward_to),
+      log_entries(log_entries),
+      temp_added(temp_added),
+      temp_removed(temp_removed),
+      updated_hit_set_history(updated_hit_set_history),
+      backfill(backfill)
+    {}
+  void claim(ECSubWrite &other) {
+    from = other.from;
+    tid = other.tid;
+    reqid = other.reqid;
+    soid = other.soid;
+    stats = other.stats;
+    t.swap(other.t);
+    at_version = other.at_version;
+    trim_to = other.trim_to;
+    roll_forward_to = other.roll_forward_to;
+    log_entries.swap(other.log_entries);
+    temp_added.swap(other.temp_added);
+    temp_removed.swap(other.temp_removed);
+    updated_hit_set_history = other.updated_hit_set_history;
+    backfill = other.backfill;
+  }
+  void encode(bufferlist &bl) const;
+  void decode(bufferlist::iterator &bl);
+  void dump(Formatter *f) const;
+  static void generate_test_instances(list<ECSubWrite*>& o);
+private:
+  // no outside copying -- slow
+  ECSubWrite(ECSubWrite& other);
+  const ECSubWrite& operator=(const ECSubWrite& other);
+};
+WRITE_CLASS_ENCODER(ECSubWrite)
+
+struct ECSubWriteReply {
+  pg_shard_t from;
+  ceph_tid_t tid;
+  eversion_t last_complete;
+  bool committed;
+  bool applied;
+  ECSubWriteReply() : tid(0), committed(false), applied(false) {}
+  void encode(bufferlist &bl) const;
+  void decode(bufferlist::iterator &bl);
+  void dump(Formatter *f) const;
+  static void generate_test_instances(list<ECSubWriteReply*>& o);
+};
+WRITE_CLASS_ENCODER(ECSubWriteReply)
+
+struct ECSubRead {
+  pg_shard_t from;
+  ceph_tid_t tid;
+  map<hobject_t, list<boost::tuple<uint64_t, uint64_t, uint32_t> >> to_read;
+  set<hobject_t> attrs_to_read;
+  void encode(bufferlist &bl, uint64_t features) const;
+  void decode(bufferlist::iterator &bl);
+  void dump(Formatter *f) const;
+  static void generate_test_instances(list<ECSubRead*>& o);
+};
+WRITE_CLASS_ENCODER_FEATURES(ECSubRead)
+
+struct ECSubReadReply {
+  pg_shard_t from;
+  ceph_tid_t tid;
+  map<hobject_t, list<pair<uint64_t, bufferlist> >> buffers_read;
+  map<hobject_t, map<string, bufferlist>> attrs_read;
+  map<hobject_t, int> errors;
+  void encode(bufferlist &bl) const;
+  void decode(bufferlist::iterator &bl);
+  void dump(Formatter *f) const;
+  static void generate_test_instances(list<ECSubReadReply*>& o);
+};
+WRITE_CLASS_ENCODER(ECSubReadReply)
+
+std::ostream &operator<<(
+  std::ostream &lhs, const ECSubWrite &rhs);
+std::ostream &operator<<(
+  std::ostream &lhs, const ECSubWriteReply &rhs);
+std::ostream &operator<<(
+  std::ostream &lhs, const ECSubRead &rhs);
+std::ostream &operator<<(
+  std::ostream &lhs, const ECSubReadReply &rhs);
+
+#endif