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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.cc | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.cc | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.cc b/src/tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.cc new file mode 100644 index 000000000..087cf4f5f --- /dev/null +++ b/src/tools/rbd_mirror/image_replayer/journal/CreateLocalImageRequest.cc @@ -0,0 +1,162 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "CreateLocalImageRequest.h" +#include "include/rados/librados.hpp" +#include "common/debug.h" +#include "common/dout.h" +#include "common/errno.h" +#include "journal/Journaler.h" +#include "librbd/ImageCtx.h" +#include "librbd/Utils.h" +#include "librbd/journal/Types.h" +#include "tools/rbd_mirror/PoolMetaCache.h" +#include "tools/rbd_mirror/ProgressContext.h" +#include "tools/rbd_mirror/Threads.h" +#include "tools/rbd_mirror/image_replayer/CreateImageRequest.h" +#include "tools/rbd_mirror/image_replayer/Utils.h" +#include "tools/rbd_mirror/image_replayer/journal/StateBuilder.h" + +#define dout_context g_ceph_context +#define dout_subsys ceph_subsys_rbd_mirror +#undef dout_prefix +#define dout_prefix *_dout << "rbd::mirror::image_replayer::journal::" \ + << "CreateLocalImageRequest: " << this << " " \ + << __func__ << ": " + +namespace rbd { +namespace mirror { +namespace image_replayer { +namespace journal { + +using librbd::util::create_async_context_callback; +using librbd::util::create_context_callback; + +template <typename I> +void CreateLocalImageRequest<I>::send() { + unregister_client(); +} + +template <typename I> +void CreateLocalImageRequest<I>::unregister_client() { + dout(10) << dendl; + update_progress("UNREGISTER_CLIENT"); + + auto ctx = create_context_callback< + CreateLocalImageRequest<I>, + &CreateLocalImageRequest<I>::handle_unregister_client>(this); + m_state_builder->remote_journaler->unregister_client(ctx); +} + +template <typename I> +void CreateLocalImageRequest<I>::handle_unregister_client(int r) { + dout(10) << "r=" << r << dendl; + if (r < 0 && r != -ENOENT) { + derr << "failed to unregister with remote journal: " << cpp_strerror(r) + << dendl; + finish(r); + return; + } + + m_state_builder->local_image_id = ""; + m_state_builder->remote_client_meta = {}; + register_client(); +} + +template <typename I> +void CreateLocalImageRequest<I>::register_client() { + ceph_assert(m_state_builder->local_image_id.empty()); + m_state_builder->local_image_id = + librbd::util::generate_image_id<I>(m_local_io_ctx); + dout(10) << "local_image_id=" << m_state_builder->local_image_id << dendl; + update_progress("REGISTER_CLIENT"); + + librbd::journal::MirrorPeerClientMeta client_meta{ + m_state_builder->local_image_id}; + client_meta.state = librbd::journal::MIRROR_PEER_STATE_SYNCING; + + librbd::journal::ClientData client_data{client_meta}; + bufferlist client_data_bl; + encode(client_data, client_data_bl); + + auto ctx = create_context_callback< + CreateLocalImageRequest<I>, + &CreateLocalImageRequest<I>::handle_register_client>(this); + m_state_builder->remote_journaler->register_client(client_data_bl, ctx); +} + +template <typename I> +void CreateLocalImageRequest<I>::handle_register_client(int r) { + dout(10) << "r=" << r << dendl; + + if (r < 0) { + derr << "failed to register with remote journal: " << cpp_strerror(r) + << dendl; + finish(r); + return; + } + + m_state_builder->remote_client_state = cls::journal::CLIENT_STATE_CONNECTED; + m_state_builder->remote_client_meta = {m_state_builder->local_image_id}; + m_state_builder->remote_client_meta.state = + librbd::journal::MIRROR_PEER_STATE_SYNCING; + + create_local_image(); +} + +template <typename I> +void CreateLocalImageRequest<I>::create_local_image() { + dout(10) << "local_image_id=" << m_state_builder->local_image_id << dendl; + update_progress("CREATE_LOCAL_IMAGE"); + + m_remote_image_ctx->image_lock.lock_shared(); + std::string image_name = m_remote_image_ctx->name; + m_remote_image_ctx->image_lock.unlock_shared(); + + auto ctx = create_context_callback< + CreateLocalImageRequest<I>, + &CreateLocalImageRequest<I>::handle_create_local_image>(this); + auto request = CreateImageRequest<I>::create( + m_threads, m_local_io_ctx, m_global_image_id, + m_state_builder->remote_mirror_uuid, image_name, + m_state_builder->local_image_id, m_remote_image_ctx, + m_pool_meta_cache, cls::rbd::MIRROR_IMAGE_MODE_JOURNAL, ctx); + request->send(); +} +template <typename I> +void CreateLocalImageRequest<I>::handle_create_local_image(int r) { + dout(10) << "r=" << r << dendl; + + if (r == -EBADF) { + dout(5) << "image id " << m_state_builder->local_image_id << " " + << "already in-use" << dendl; + unregister_client(); + return; + } else if (r < 0) { + if (r == -ENOENT) { + dout(10) << "parent image does not exist" << dendl; + } else { + derr << "failed to create local image: " << cpp_strerror(r) << dendl; + } + finish(r); + return; + } + + finish(0); +} + +template <typename I> +void CreateLocalImageRequest<I>::update_progress( + const std::string& description) { + dout(15) << description << dendl; + if (m_progress_ctx != nullptr) { + m_progress_ctx->update_progress(description); + } +} + +} // namespace journal +} // namespace image_replayer +} // namespace mirror +} // namespace rbd + +template class rbd::mirror::image_replayer::journal::CreateLocalImageRequest<librbd::ImageCtx>; |