remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / object_map / SnapshotCreateRequest.cc

diff --git a/src/ceph/src/librbd/object_map/SnapshotCreateRequest.cc b/src/ceph/src/librbd/object_map/SnapshotCreateRequest.cc
deleted file mode 100644 (file)
index 5d77d26..0000000
--- a/src/ceph/src/librbd/object_map/SnapshotCreateRequest.cc
+++ /dev/null
@@ -1,147 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "librbd/object_map/SnapshotCreateRequest.h"
-#include "common/dout.h"
-#include "librbd/ImageCtx.h"
-#include "librbd/ObjectMap.h"
-#include "cls/lock/cls_lock_client.h"
-#include <iostream>
-
-#define dout_subsys ceph_subsys_rbd
-#undef dout_prefix
-#define dout_prefix *_dout << "librbd::object_map::SnapshotCreateRequest: "
-
-namespace librbd {
-namespace object_map {
-
-namespace {
-
-std::ostream& operator<<(std::ostream& os,
-                         const SnapshotCreateRequest::State& state) {
-  switch(state) {
-  case SnapshotCreateRequest::STATE_READ_MAP:
-    os << "READ_MAP";
-    break;
-  case SnapshotCreateRequest::STATE_WRITE_MAP:
-    os << "WRITE_MAP";
-    break;
-  case SnapshotCreateRequest::STATE_ADD_SNAPSHOT:
-    os << "ADD_SNAPSHOT";
-    break;
-  default:
-    os << "UNKNOWN (" << static_cast<uint32_t>(state) << ")";
-    break;
-  }
-  return os;
-}
-
-} // anonymous namespace
-
-void SnapshotCreateRequest::send() {
-  send_read_map();
-}
-
-bool SnapshotCreateRequest::should_complete(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 5) << this << " " << __func__ << ": state=" << m_state << ", "
-                << "r=" << r << dendl;
-  if (r < 0 && m_ret_val == 0) {
-    m_ret_val = r;
-  }
-  if (m_ret_val < 0) {
-    // pass errors down to base class to invalidate the object map
-    return Request::should_complete(r);
-  }
-
-  RWLock::RLocker owner_locker(m_image_ctx.owner_lock);
-  bool finished = false;
-  switch (m_state) {
-  case STATE_READ_MAP:
-    send_write_map();
-    break;
-  case STATE_WRITE_MAP:
-    finished = send_add_snapshot();
-    break;
-  case STATE_ADD_SNAPSHOT:
-    update_object_map();
-    finished = true;
-    break;
-  default:
-    assert(false);
-    break;
-  }
-  return finished;
-}
-
-void SnapshotCreateRequest::send_read_map() {
-  assert(m_image_ctx.snap_lock.is_locked());
-  assert(m_image_ctx.get_snap_info(m_snap_id) != NULL);
-
-  CephContext *cct = m_image_ctx.cct;
-  std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, CEPH_NOSNAP));
-  ldout(cct, 5) << this << " " << __func__ << ": oid=" << oid << dendl;
-  m_state = STATE_READ_MAP;
-
-  // IO is blocked due to the snapshot creation -- consistent to read from disk
-  librados::ObjectReadOperation op;
-  op.read(0, 0, NULL, NULL);
-
-  librados::AioCompletion *rados_completion = create_callback_completion();
-  int r = m_image_ctx.md_ctx.aio_operate(oid, rados_completion, &op,
-                                         &m_read_bl);
-  assert(r == 0);
-  rados_completion->release();
-}
-
-void SnapshotCreateRequest::send_write_map() {
-  CephContext *cct = m_image_ctx.cct;
-  std::string snap_oid(ObjectMap<>::object_map_name(m_image_ctx.id, m_snap_id));
-  ldout(cct, 5) << this << " " << __func__ << ": snap_oid=" << snap_oid
-                << dendl;
-  m_state = STATE_WRITE_MAP;
-
-  librados::ObjectWriteOperation op;
-  op.write_full(m_read_bl);
-
-  librados::AioCompletion *rados_completion = create_callback_completion();
-  int r = m_image_ctx.md_ctx.aio_operate(snap_oid, rados_completion, &op);
-  assert(r == 0);
-  rados_completion->release();
-}
-
-bool SnapshotCreateRequest::send_add_snapshot() {
-  RWLock::RLocker snap_locker(m_image_ctx.snap_lock);
-  if ((m_image_ctx.features & RBD_FEATURE_FAST_DIFF) == 0) {
-    return true;
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  std::string oid(ObjectMap<>::object_map_name(m_image_ctx.id, CEPH_NOSNAP));
-  ldout(cct, 5) << this << " " << __func__ << ": oid=" << oid << dendl;
-  m_state = STATE_ADD_SNAPSHOT;
-
-  librados::ObjectWriteOperation op;
-  rados::cls::lock::assert_locked(&op, RBD_LOCK_NAME, LOCK_EXCLUSIVE, "", "");
-  cls_client::object_map_snap_add(&op);
-
-  librados::AioCompletion *rados_completion = create_callback_completion();
-  int r = m_image_ctx.md_ctx.aio_operate(oid, rados_completion, &op);
-  assert(r == 0);
-  rados_completion->release();
-  return false;
-}
-
-void SnapshotCreateRequest::update_object_map() {
-  RWLock::WLocker snap_locker(m_image_ctx.snap_lock);
-  RWLock::WLocker object_map_locker(m_image_ctx.object_map_lock);
-
-  for (uint64_t i = 0; i < m_object_map.size(); ++i) {
-    if (m_object_map[i] == OBJECT_EXISTS) {
-      m_object_map[i] = OBJECT_EXISTS_CLEAN;
-    }
-  }
-}
-
-} // namespace object_map
-} // namespace librbd