remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / object_map / SnapshotRemoveRequest.h

diff --git a/src/ceph/src/librbd/object_map/SnapshotRemoveRequest.h b/src/ceph/src/librbd/object_map/SnapshotRemoveRequest.h
deleted file mode 100644 (file)
index 6f9e85c..0000000
--- a/src/ceph/src/librbd/object_map/SnapshotRemoveRequest.h
+++ /dev/null
@@ -1,89 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#ifndef CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_REMOVE_REQUEST_H
-#define CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_REMOVE_REQUEST_H
-
-#include "include/int_types.h"
-#include "include/buffer.h"
-#include "common/bit_vector.hpp"
-#include "librbd/AsyncRequest.h"
-
-namespace librbd {
-namespace object_map {
-
-class SnapshotRemoveRequest : public AsyncRequest<> {
-public:
-  /**
-   * Snapshot rollback goes through the following state machine:
-   *
-   * @verbatim
-   *
-   * <start> -----------> STATE_LOAD_MAP ----\
-   *    .                      *             |
-   *    .                      * (error)     |
-   *    . (invalid object map) v             |
-   *    . . . > STATE_INVALIDATE_NEXT_MAP    |
-   *    .                      |             |
-   *    .                      |             |
-   *    . (fast diff disabled) v             v
-   *    . . . . . . . . . . > STATE_REMOVE_MAP
-   *                                 |
-   *                                 v
-   *                             <finish>
-   *
-   * @endverbatim
-   *
-   * The _LOAD_MAP state is skipped if the fast diff feature is disabled.
-   * If the fast diff feature is enabled and the snapshot is flagged as
-   * invalid, the next snapshot / HEAD object mapis flagged as invalid;
-   * otherwise, the state machine proceeds to remove the object map.
-   */
-  enum State {
-    STATE_LOAD_MAP,
-    STATE_REMOVE_SNAPSHOT,
-    STATE_INVALIDATE_NEXT_MAP,
-    STATE_REMOVE_MAP
-  };
-
-  SnapshotRemoveRequest(ImageCtx &image_ctx, ceph::BitVector<2> *object_map,
-                        uint64_t snap_id, Context *on_finish)
-    : AsyncRequest(image_ctx, on_finish), m_object_map(*object_map),
-      m_snap_id(snap_id), m_next_snap_id(CEPH_NOSNAP) {
-  }
-
-  void send() override;
-
-protected:
-  bool should_complete(int r) override;
-
-  int filter_return_code(int r) const override {
-    if ((m_state == STATE_LOAD_MAP || m_state == STATE_REMOVE_MAP) &&
-        r == -ENOENT) {
-      return 0;
-    }
-    return r;
-  }
-
-private:
-  State m_state;
-  ceph::BitVector<2> &m_object_map;
-  uint64_t m_snap_id;
-  uint64_t m_next_snap_id;
-
-  ceph::BitVector<2> m_snap_object_map;
-  bufferlist m_out_bl;
-
-  void send_load_map();
-  void send_remove_snapshot();
-  void send_invalidate_next_map();
-  void send_remove_map();
-
-  void compute_next_snap_id();
-  void update_object_map();
-};
-
-} // namespace object_map
-} // namespace librbd
-
-#endif // CEPH_LIBRBD_OBJECT_MAP_SNAPSHOT_REMOVE_REQUEST_H