X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2Fexclusive_lock%2FPreReleaseRequest.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2Fexclusive_lock%2FPreReleaseRequest.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=504de0f0b93f9ae39bf1ec58c652d2ca80faf59e;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git

diff --git a/src/ceph/src/librbd/exclusive_lock/PreReleaseRequest.cc b/src/ceph/src/librbd/exclusive_lock/PreReleaseRequest.cc
deleted file mode 100644
index 504de0f..0000000
--- a/src/ceph/src/librbd/exclusive_lock/PreReleaseRequest.cc
+++ /dev/null
@@ -1,311 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-
-#include "librbd/exclusive_lock/PreReleaseRequest.h"
-#include "common/AsyncOpTracker.h"
-#include "common/dout.h"
-#include "common/errno.h"
-#include "librbd/ExclusiveLock.h"
-#include "librbd/ImageState.h"
-#include "librbd/ImageWatcher.h"
-#include "librbd/Journal.h"
-#include "librbd/ObjectMap.h"
-#include "librbd/Utils.h"
-#include "librbd/io/ImageRequestWQ.h"
-
-#define dout_subsys ceph_subsys_rbd
-#undef dout_prefix
-#define dout_prefix *_dout << "librbd::exclusive_lock::PreReleaseRequest: " \
-                           << this << " " << __func__ << ": "
-
-namespace librbd {
-namespace exclusive_lock {
-
-using util::create_async_context_callback;
-using util::create_context_callback;
-
-template <typename I>
-PreReleaseRequest<I>* PreReleaseRequest<I>::create(
-    I &image_ctx, bool shutting_down, AsyncOpTracker &async_op_tracker,
-    Context *on_finish) {
-  return new PreReleaseRequest(image_ctx, shutting_down, async_op_tracker,
-                               on_finish);
-}
-
-template <typename I>
-PreReleaseRequest<I>::PreReleaseRequest(I &image_ctx, bool shutting_down,
-                                        AsyncOpTracker &async_op_tracker,
-                                        Context *on_finish)
-  : m_image_ctx(image_ctx), m_shutting_down(shutting_down),
-    m_async_op_tracker(async_op_tracker),
-    m_on_finish(create_async_context_callback(image_ctx, on_finish)) {
-}
-
-template <typename I>
-PreReleaseRequest<I>::~PreReleaseRequest() {
-  if (!m_shutting_down) {
-    m_image_ctx.state->handle_prepare_lock_complete();
-  }
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send() {
-  send_prepare_lock();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_prepare_lock() {
-  if (m_shutting_down) {
-    send_cancel_op_requests();
-    return;
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  // release the lock if the image is not busy performing other actions
-  Context *ctx = create_context_callback<
-    PreReleaseRequest<I>, &PreReleaseRequest<I>::handle_prepare_lock>(this);
-  m_image_ctx.state->prepare_lock(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_prepare_lock(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  send_cancel_op_requests();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_cancel_op_requests() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  using klass = PreReleaseRequest<I>;
-  Context *ctx = create_context_callback<
-    klass, &klass::handle_cancel_op_requests>(this);
-  m_image_ctx.cancel_async_requests(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_cancel_op_requests(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  assert(r == 0);
-
-  send_block_writes();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_block_writes() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  using klass = PreReleaseRequest<I>;
-  Context *ctx = create_context_callback<
-    klass, &klass::handle_block_writes>(this);
-
-  {
-    RWLock::RLocker owner_locker(m_image_ctx.owner_lock);
-    // setting the lock as required will automatically cause the IO
-    // queue to re-request the lock if any IO is queued
-    if (m_image_ctx.clone_copy_on_read ||
-        m_image_ctx.test_features(RBD_FEATURE_JOURNALING)) {
-      m_image_ctx.io_work_queue->set_require_lock(io::DIRECTION_BOTH, true);
-    } else {
-      m_image_ctx.io_work_queue->set_require_lock(io::DIRECTION_WRITE, true);
-    }
-    m_image_ctx.io_work_queue->block_writes(ctx);
-  }
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_block_writes(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  if (r == -EBLACKLISTED) {
-    // allow clean shut down if blacklisted
-    lderr(cct) << "failed to block writes because client is blacklisted"
-               << dendl;
-  } else if (r < 0) {
-    lderr(cct) << "failed to block writes: " << cpp_strerror(r) << dendl;
-    m_image_ctx.io_work_queue->unblock_writes();
-    save_result(r);
-    finish();
-    return;
-  }
-
-  send_wait_for_ops();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_wait_for_ops() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  Context *ctx = create_context_callback<
-    PreReleaseRequest<I>, &PreReleaseRequest<I>::handle_wait_for_ops>(this);
-  m_async_op_tracker.wait_for_ops(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_wait_for_ops(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  send_invalidate_cache(false);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_invalidate_cache(bool purge_on_error) {
-  if (m_image_ctx.object_cacher == nullptr) {
-    send_flush_notifies();
-    return;
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "purge_on_error=" << purge_on_error << dendl;
-
-  RWLock::RLocker owner_lock(m_image_ctx.owner_lock);
-  Context *ctx = create_async_context_callback(
-    m_image_ctx, create_context_callback<
-      PreReleaseRequest<I>,
-      &PreReleaseRequest<I>::handle_invalidate_cache>(this));
-  m_image_ctx.invalidate_cache(purge_on_error, ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_invalidate_cache(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  if (r == -EBLACKLISTED) {
-    lderr(cct) << "failed to invalidate cache because client is blacklisted"
-               << dendl;
-    if (!m_image_ctx.is_cache_empty()) {
-      // force purge the cache after after being blacklisted
-      send_invalidate_cache(true);
-      return;
-    }
-  } else if (r < 0 && r != -EBUSY) {
-    lderr(cct) << "failed to invalidate cache: " << cpp_strerror(r)
-               << dendl;
-    m_image_ctx.io_work_queue->unblock_writes();
-    save_result(r);
-    finish();
-    return;
-  }
-
-  send_flush_notifies();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_flush_notifies() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  using klass = PreReleaseRequest<I>;
-  Context *ctx =
-    create_context_callback<klass, &klass::handle_flush_notifies>(this);
-  m_image_ctx.image_watcher->flush(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_flush_notifies(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  assert(r == 0);
-  send_close_journal();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_close_journal() {
-  {
-    RWLock::WLocker snap_locker(m_image_ctx.snap_lock);
-    std::swap(m_journal, m_image_ctx.journal);
-  }
-
-  if (m_journal == nullptr) {
-    send_close_object_map();
-    return;
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  using klass = PreReleaseRequest<I>;
-  Context *ctx = create_context_callback<klass, &klass::handle_close_journal>(
-    this);
-  m_journal->close(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_close_journal(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  if (r < 0) {
-    // error implies some journal events were not flushed -- continue
-    lderr(cct) << "failed to close journal: " << cpp_strerror(r) << dendl;
-  }
-
-  delete m_journal;
-
-  send_close_object_map();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_close_object_map() {
-  {
-    RWLock::WLocker snap_locker(m_image_ctx.snap_lock);
-    std::swap(m_object_map, m_image_ctx.object_map);
-  }
-
-  if (m_object_map == nullptr) {
-    send_unlock();
-    return;
-  }
-
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  using klass = PreReleaseRequest<I>;
-  Context *ctx = create_context_callback<
-    klass, &klass::handle_close_object_map>(this);
-  m_object_map->close(ctx);
-}
-
-template <typename I>
-void PreReleaseRequest<I>::handle_close_object_map(int r) {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << "r=" << r << dendl;
-
-  // object map shouldn't return errors
-  assert(r == 0);
-  delete m_object_map;
-
-  send_unlock();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::send_unlock() {
-  CephContext *cct = m_image_ctx.cct;
-  ldout(cct, 10) << dendl;
-
-  finish();
-}
-
-template <typename I>
-void PreReleaseRequest<I>::finish() {
-  m_on_finish->complete(m_error_result);
-  delete this;
-}
-
-} // namespace exclusive_lock
-} // namespace librbd
-
-template class librbd::exclusive_lock::PreReleaseRequest<librbd::ImageCtx>;