1 files changed, 114 insertions, 0 deletions
diff --git a/src/messages/MOSDForceRecovery.h b/src/messages/MOSDForceRecovery.h
new file mode 100644
index 000000000..2d9ccc0e0
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+++ b/src/messages/MOSDForceRecovery.h
@@ -0,0 +1,114 @@
+// -*- 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) 2017 OVH
+ *
+ * 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 CEPH_MOSDFORCERECOVERY_H
+#define CEPH_MOSDFORCERECOVERY_H
+
+#include "msg/Message.h"
+
+/*
+ * instruct an OSD to boost/unboost recovery/backfill priority of some or all pg(s)
+ */
+
+// boost priority of recovery
+static const int OFR_RECOVERY = 1;
+
+// boost priority of backfill
+static const int OFR_BACKFILL = 2;
+
+// cancel priority boost, requeue if necessary
+static const int OFR_CANCEL = 4;
+
+class MOSDForceRecovery final : public Message {
+public:
+  static constexpr int HEAD_VERSION = 2;
+  static constexpr int COMPAT_VERSION = 2;
+
+  uuid_d fsid;
+  std::vector<spg_t> forced_pgs;
+  uint8_t options = 0;
+
+  MOSDForceRecovery() : Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION} {}
+  MOSDForceRecovery(const uuid_d& f, char opts) :
+    Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION},
+    fsid(f), options(opts) {}
+  MOSDForceRecovery(const uuid_d& f, std::vector<spg_t>& pgs, char opts) :
+    Message{MSG_OSD_FORCE_RECOVERY, HEAD_VERSION, COMPAT_VERSION},
+    fsid(f), forced_pgs(pgs), options(opts) {}
+private:
+  ~MOSDForceRecovery() final {}
+
+public:
+  std::string_view get_type_name() const { return "force_recovery"; }
+  void print(std::ostream& out) const {
+    out << "force_recovery(";
+    if (forced_pgs.empty())
+      out << "osd";
+    else
+      out << forced_pgs;
+    if (options & OFR_RECOVERY)
+      out << " recovery";
+    if (options & OFR_BACKFILL)
+       out << " backfill";
+    if (options & OFR_CANCEL)
+       out << " cancel";
+     out << ")";
+  }
+
+  void encode_payload(uint64_t features) {
+    using ceph::encode;
+    if (!HAVE_FEATURE(features, SERVER_MIMIC)) {
+      header.version = 1;
+      header.compat_version = 1;
+      std::vector<pg_t> pgs;
+      for (auto pgid : forced_pgs) {
+	pgs.push_back(pgid.pgid);
+      }
+      encode(fsid, payload);
+      encode(pgs, payload);
+      encode(options, payload);
+      return;
+    }
+    header.version = HEAD_VERSION;
+    header.compat_version = COMPAT_VERSION;
+    encode(fsid, payload);
+    encode(forced_pgs, payload);
+    encode(options, payload);
+  }
+  void decode_payload() {
+    using ceph::decode;
+    auto p = payload.cbegin();
+    if (header.version == 1) {
+      std::vector<pg_t> pgs;
+      decode(fsid, p);
+      decode(pgs, p);
+      decode(options, p);
+      for (auto pg : pgs) {
+	// note: this only works with replicated pools.  if a pre-mimic mon
+	// tries to force a mimic+ osd on an ec pool it will not work.
+	forced_pgs.push_back(spg_t(pg));
+      }
+      return;
+    }
+    decode(fsid, p);
+    decode(forced_pgs, p);
+    decode(options, p);
+  }
+private:
+  template<class T, typename... Args>
+  friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
+};
+
+#endif /* CEPH_MOSDFORCERECOVERY_H_ */