remove ceph code

[stor4nfv.git] / src / ceph / src / librbd / mirror / DemoteRequest.cc

diff --git a/src/ceph/src/librbd/mirror/DemoteRequest.cc b/src/ceph/src/librbd/mirror/DemoteRequest.cc
deleted file mode 100644 (file)
index 1fb23a5..0000000
--- a/src/ceph/src/librbd/mirror/DemoteRequest.cc
+++ /dev/null
@@ -1,197 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "librbd/mirror/DemoteRequest.h"
-#include "common/dout.h"
-#include "common/errno.h"
-#include "cls/rbd/cls_rbd_client.h"
-#include "librbd/ExclusiveLock.h"
-#include "librbd/ImageCtx.h"
-#include "librbd/ImageState.h"
-#include "librbd/Journal.h"
-#include "librbd/Utils.h"
-#include "librbd/mirror/GetInfoRequest.h"
-
-#define dout_subsys ceph_subsys_rbd
-#undef dout_prefix
-#define dout_prefix *_dout << "librbd::mirror::DemoteRequest: " << this \
-                           << " " << __func__ << ": "
-
-namespace librbd {
-namespace mirror {
-
-using librbd::util::create_context_callback;
-
-template <typename I>
-void DemoteRequest<I>::send() {
-  get_info();
-}
-
-template <typename I>
-void DemoteRequest<I>::get_info() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << dendl;
-
-  auto ctx = create_context_callback<
-    DemoteRequest<I>, &DemoteRequest<I>::handle_get_info>(this);
-  auto req = GetInfoRequest<I>::create(m_image_ctx, &m_mirror_image,
-                                       &m_promotion_state, ctx);
-  req->send();
-}
-
-template <typename I>
-void DemoteRequest<I>::handle_get_info(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << "r=" << r << dendl;
-
-  if (r < 0) {
-    lderr(cct) << "failed to retrieve mirroring state: " << cpp_strerror(r)
-               << dendl;
-    finish(r);
-    return;
-  } else if (m_mirror_image.state != cls::rbd::MIRROR_IMAGE_STATE_ENABLED) {
-    lderr(cct) << "mirroring is not currently enabled" << dendl;
-    finish(-EINVAL);
-    return;
-  } else if (m_promotion_state != PROMOTION_STATE_PRIMARY) {
-    lderr(cct) << "image is not primary" << dendl;
-    finish(-EINVAL);
-    return;
-  }
-
-  acquire_lock();
-}
-
-template <typename I>
-void DemoteRequest<I>::acquire_lock() {
-  CephContext *cct = m_image_ctx.cct;
-
-  m_image_ctx.owner_lock.get_read();
-  if (m_image_ctx.exclusive_lock == nullptr) {
-    m_image_ctx.owner_lock.put_read();
-    lderr(cct) << "exclusive lock is not active" << dendl;
-    finish(-EINVAL);
-    return;
-  }
-
-  // avoid accepting new requests from peers while we demote
-  // the image
-  m_image_ctx.exclusive_lock->block_requests(0);
-  m_blocked_requests = true;
-
-  if (m_image_ctx.exclusive_lock->is_lock_owner()) {
-    m_image_ctx.owner_lock.put_read();
-    demote();
-    return;
-  }
-
-  ldout(cct, 20) << dendl;
-
-  auto ctx = create_context_callback<
-    DemoteRequest<I>, &DemoteRequest<I>::handle_acquire_lock>(this);
-  m_image_ctx.exclusive_lock->acquire_lock(ctx);
-  m_image_ctx.owner_lock.put_read();
-}
-
-template <typename I>
-void DemoteRequest<I>::handle_acquire_lock(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << "r=" << r << dendl;
-
-  if (r < 0) {
-    lderr(cct) << "failed to lock image: " << cpp_strerror(r) << dendl;
-    finish(r);
-    return;
-  }
-
-  m_image_ctx.owner_lock.get_read();
-  if (m_image_ctx.exclusive_lock == nullptr ||
-      !m_image_ctx.exclusive_lock->is_lock_owner()) {
-    m_image_ctx.owner_lock.put_read();
-    lderr(cct) << "failed to acquire exclusive lock" << dendl;
-    finish(-EROFS);
-    return;
-  }
-  m_image_ctx.owner_lock.put_read();
-
-  demote();
-}
-
-template <typename I>
-void DemoteRequest<I>::demote() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << dendl;
-
-  auto ctx = create_context_callback<
-    DemoteRequest<I>, &DemoteRequest<I>::handle_demote>(this);
-  Journal<I>::demote(&m_image_ctx, ctx);
-}
-
-template <typename I>
-void DemoteRequest<I>::handle_demote(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << "r=" << r << dendl;
-
-  if (r < 0) {
-    m_ret_val = r;
-    lderr(cct) << "failed to demote image: " << cpp_strerror(r) << dendl;
-  }
-
-  release_lock();
-}
-
-template <typename I>
-void DemoteRequest<I>::release_lock() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << dendl;
-
-  m_image_ctx.owner_lock.get_read();
-  if (m_image_ctx.exclusive_lock == nullptr) {
-    m_image_ctx.owner_lock.put_read();
-    finish(0);
-    return;
-  }
-
-  auto ctx = create_context_callback<
-    DemoteRequest<I>, &DemoteRequest<I>::handle_release_lock>(this);
-  m_image_ctx.exclusive_lock->release_lock(ctx);
-  m_image_ctx.owner_lock.put_read();
-}
-
-template <typename I>
-void DemoteRequest<I>::handle_release_lock(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << "r=" << r << dendl;
-
-  if (r < 0) {
-    lderr(cct) << "failed to release exclusive lock: " << cpp_strerror(r)
-               << dendl;
-  }
-
-  finish(r);
-}
-
-template <typename I>
-void DemoteRequest<I>::finish(int r) {
-  if (m_ret_val < 0) {
-    r = m_ret_val;
-  }
-
-  {
-    RWLock::RLocker owner_locker(m_image_ctx.owner_lock);
-    if (m_blocked_requests && m_image_ctx.exclusive_lock != nullptr) {
-      m_image_ctx.exclusive_lock->unblock_requests();
-    }
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 20) << "r=" << r << dendl;
-
-  m_on_finish->complete(r);
-  delete this;
-}
-
-} // namespace mirror
-} // namespace librbd
-
-template class librbd::mirror::DemoteRequest<librbd::ImageCtx>;