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-rw-r--r--src/librbd/object_map/CreateRequest.cc94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/librbd/object_map/CreateRequest.cc b/src/librbd/object_map/CreateRequest.cc
new file mode 100644
index 00000000..a2b9d8f6
--- /dev/null
+++ b/src/librbd/object_map/CreateRequest.cc
@@ -0,0 +1,94 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/object_map/CreateRequest.h"
+#include "include/ceph_assert.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "osdc/Striper.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ObjectMap.h"
+#include "librbd/Utils.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::object_map::CreateRequest: "
+
+namespace librbd {
+namespace object_map {
+
+using util::create_context_callback;
+using util::create_rados_callback;
+
+template <typename I>
+CreateRequest<I>::CreateRequest(I *image_ctx, Context *on_finish)
+ : m_image_ctx(image_ctx), m_on_finish(on_finish) {
+}
+
+template <typename I>
+void CreateRequest<I>::send() {
+ CephContext *cct = m_image_ctx->cct;
+
+ uint64_t max_size = m_image_ctx->size;
+
+ {
+ RWLock::WLocker snap_locker(m_image_ctx->snap_lock);
+ m_snap_ids.push_back(CEPH_NOSNAP);
+ for (auto it : m_image_ctx->snap_info) {
+ max_size = std::max(max_size, it.second.size);
+ m_snap_ids.push_back(it.first);
+ }
+
+ if (ObjectMap<>::is_compatible(m_image_ctx->layout, max_size)) {
+ send_object_map_resize();
+ return;
+ }
+ }
+
+ lderr(cct) << "image size not compatible with object map" << dendl;
+ m_on_finish->complete(-EINVAL);
+}
+
+template <typename I>
+void CreateRequest<I>::send_object_map_resize() {
+ CephContext *cct = m_image_ctx->cct;
+ ldout(cct, 20) << __func__ << dendl;
+
+ Context *ctx = create_context_callback<
+ CreateRequest<I>, &CreateRequest<I>::handle_object_map_resize>(this);
+ C_Gather *gather_ctx = new C_Gather(cct, ctx);
+
+ for (auto snap_id : m_snap_ids) {
+ librados::ObjectWriteOperation op;
+ uint64_t snap_size = m_image_ctx->get_image_size(snap_id);
+
+ cls_client::object_map_resize(&op, Striper::get_num_objects(
+ m_image_ctx->layout, snap_size),
+ OBJECT_NONEXISTENT);
+
+ std::string oid(ObjectMap<>::object_map_name(m_image_ctx->id, snap_id));
+ librados::AioCompletion *comp = create_rados_callback(gather_ctx->new_sub());
+ int r = m_image_ctx->md_ctx.aio_operate(oid, comp, &op);
+ ceph_assert(r == 0);
+ comp->release();
+ }
+ gather_ctx->activate();
+}
+
+template <typename I>
+Context *CreateRequest<I>::handle_object_map_resize(int *result) {
+ CephContext *cct = m_image_ctx->cct;
+ ldout(cct, 20) << __func__ << ": r=" << *result << dendl;
+
+ if (*result < 0) {
+ lderr(cct) << "object map resize failed: " << cpp_strerror(*result)
+ << dendl;
+ }
+ return m_on_finish;
+}
+
+} // namespace object_map
+} // namespace librbd
+
+template class librbd::object_map::CreateRequest<librbd::ImageCtx>;