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diff --git a/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.cc b/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.cc
new file mode 100644
index 0000000..a9d9445
--- /dev/null
+++ b/src/ceph/src/tools/rbd_mirror/image_sync/SyncPointPruneRequest.cc
@@ -0,0 +1,219 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "SyncPointPruneRequest.h"
+#include "common/errno.h"
+#include "journal/Journaler.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/Operations.h"
+#include "librbd/Utils.h"
+#include <set>
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rbd_mirror
+#undef dout_prefix
+#define dout_prefix *_dout << "rbd::mirror::image_sync::SyncPointPruneRequest: " \
+                           << this << " " << __func__
+namespace rbd {
+namespace mirror {
+namespace image_sync {
+
+using librbd::util::create_context_callback;
+
+template <typename I>
+SyncPointPruneRequest<I>::SyncPointPruneRequest(I *remote_image_ctx,
+                                                bool sync_complete,
+                                                Journaler *journaler,
+                                                MirrorPeerClientMeta *client_meta,
+                                                Context *on_finish)
+  : m_remote_image_ctx(remote_image_ctx), m_sync_complete(sync_complete),
+    m_journaler(journaler), m_client_meta(client_meta), m_on_finish(on_finish),
+    m_client_meta_copy(*client_meta) {
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::send() {
+  if (m_client_meta->sync_points.empty()) {
+    send_remove_snap();
+    return;
+  }
+
+  if (m_sync_complete) {
+    // if sync is complete, we can remove the master sync point
+    auto it = m_client_meta_copy.sync_points.begin();
+    MirrorPeerSyncPoint &sync_point = *it;
+
+    ++it;
+    if (it == m_client_meta_copy.sync_points.end() ||
+        it->from_snap_name != sync_point.snap_name) {
+      m_snap_names.push_back(sync_point.snap_name);
+    }
+
+    if (!sync_point.from_snap_name.empty()) {
+      m_snap_names.push_back(sync_point.from_snap_name);
+    }
+  } else {
+    // if we have more than one sync point or invalid sync points,
+    // trim them off
+    RWLock::RLocker snap_locker(m_remote_image_ctx->snap_lock);
+    std::set<std::string> snap_names;
+    for (auto it = m_client_meta_copy.sync_points.rbegin();
+         it != m_client_meta_copy.sync_points.rend(); ++it) {
+      MirrorPeerSyncPoint &sync_point = *it;
+      if (&sync_point == &m_client_meta_copy.sync_points.front()) {
+        if (m_remote_image_ctx->get_snap_id(
+	      cls::rbd::UserSnapshotNamespace(), sync_point.snap_name) ==
+              CEPH_NOSNAP) {
+          derr << ": failed to locate sync point snapshot: "
+               << sync_point.snap_name << dendl;
+        } else if (!sync_point.from_snap_name.empty()) {
+          derr << ": unexpected from_snap_name in primary sync point: "
+               << sync_point.from_snap_name << dendl;
+        } else {
+          // first sync point is OK -- keep it
+          break;
+        }
+        m_invalid_master_sync_point = true;
+      }
+
+      if (snap_names.count(sync_point.snap_name) == 0) {
+        snap_names.insert(sync_point.snap_name);
+        m_snap_names.push_back(sync_point.snap_name);
+      }
+
+      MirrorPeerSyncPoint &front_sync_point =
+        m_client_meta_copy.sync_points.front();
+      if (!sync_point.from_snap_name.empty() &&
+          snap_names.count(sync_point.from_snap_name) == 0 &&
+          sync_point.from_snap_name != front_sync_point.snap_name) {
+        snap_names.insert(sync_point.from_snap_name);
+        m_snap_names.push_back(sync_point.from_snap_name);
+      }
+    }
+  }
+
+  send_remove_snap();
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::send_remove_snap() {
+  if (m_snap_names.empty()) {
+    send_refresh_image();
+    return;
+  }
+
+  const std::string &snap_name = m_snap_names.front();
+
+  dout(20) << ": snap_name=" << snap_name << dendl;
+
+  Context *ctx = create_context_callback<
+    SyncPointPruneRequest<I>, &SyncPointPruneRequest<I>::handle_remove_snap>(
+      this);
+  m_remote_image_ctx->operations->snap_remove(cls::rbd::UserSnapshotNamespace(),
+					      snap_name.c_str(),
+					      ctx);
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::handle_remove_snap(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  assert(!m_snap_names.empty());
+  std::string snap_name = m_snap_names.front();
+  m_snap_names.pop_front();
+
+  if (r == -ENOENT) {
+    r = 0;
+  }
+  if (r < 0) {
+    derr << ": failed to remove snapshot '" << snap_name << "': "
+         << cpp_strerror(r) << dendl;
+    finish(r);
+    return;
+  }
+
+  send_remove_snap();
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::send_refresh_image() {
+  dout(20) << dendl;
+
+  Context *ctx = create_context_callback<
+    SyncPointPruneRequest<I>, &SyncPointPruneRequest<I>::handle_refresh_image>(
+      this);
+  m_remote_image_ctx->state->refresh(ctx);
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::handle_refresh_image(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  if (r < 0) {
+    derr << ": remote image refresh failed: " << cpp_strerror(r) << dendl;
+    finish(r);
+    return;
+  }
+
+  send_update_client();
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::send_update_client() {
+  dout(20) << dendl;
+
+  if (m_sync_complete) {
+    m_client_meta_copy.sync_points.pop_front();
+    if (m_client_meta_copy.sync_points.empty()) {
+      m_client_meta_copy.state = librbd::journal::MIRROR_PEER_STATE_REPLAYING;
+    }
+  } else {
+    while (m_client_meta_copy.sync_points.size() > 1) {
+      m_client_meta_copy.sync_points.pop_back();
+    }
+    if (m_invalid_master_sync_point) {
+      // all subsequent sync points would have been pruned
+      m_client_meta_copy.sync_points.clear();
+    }
+  }
+
+  bufferlist client_data_bl;
+  librbd::journal::ClientData client_data(m_client_meta_copy);
+  ::encode(client_data, client_data_bl);
+
+  Context *ctx = create_context_callback<
+    SyncPointPruneRequest<I>, &SyncPointPruneRequest<I>::handle_update_client>(
+      this);
+  m_journaler->update_client(client_data_bl, ctx);
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::handle_update_client(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  if (r < 0) {
+    derr << ": failed to update client data: " << cpp_strerror(r)
+         << dendl;
+    finish(r);
+    return;
+  }
+
+  // update provided meta structure to reflect reality
+  *m_client_meta = m_client_meta_copy;
+  finish(0);
+}
+
+template <typename I>
+void SyncPointPruneRequest<I>::finish(int r) {
+  dout(20) << ": r=" << r << dendl;
+
+  m_on_finish->complete(r);
+  delete this;
+}
+
+} // namespace image_sync
+} // namespace mirror
+} // namespace rbd
+
+template class rbd::mirror::image_sync::SyncPointPruneRequest<librbd::ImageCtx>;