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-rw-r--r--src/librbd/object_map/RemoveRequest.cc88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/librbd/object_map/RemoveRequest.cc b/src/librbd/object_map/RemoveRequest.cc
new file mode 100644
index 000000000..a718d81fc
--- /dev/null
+++ b/src/librbd/object_map/RemoveRequest.cc
@@ -0,0 +1,88 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/object_map/RemoveRequest.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ObjectMap.h"
+#include "librbd/Utils.h"
+#include "include/ceph_assert.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::object_map::RemoveRequest: "
+
+namespace librbd {
+namespace object_map {
+
+using util::create_rados_callback;
+
+template <typename I>
+RemoveRequest<I>::RemoveRequest(I *image_ctx, Context *on_finish)
+ : m_image_ctx(image_ctx), m_on_finish(on_finish) {
+}
+
+template <typename I>
+void RemoveRequest<I>::send() {
+ send_remove_object_map();
+}
+
+template <typename I>
+void RemoveRequest<I>::send_remove_object_map() {
+ CephContext *cct = m_image_ctx->cct;
+ ldout(cct, 20) << __func__ << dendl;
+
+ std::unique_lock image_locker{m_image_ctx->image_lock};
+ std::vector<uint64_t> snap_ids;
+ snap_ids.push_back(CEPH_NOSNAP);
+ for (auto it : m_image_ctx->snap_info) {
+ snap_ids.push_back(it.first);
+ }
+
+ std::lock_guard locker{m_lock};
+ ceph_assert(m_ref_counter == 0);
+
+ for (auto snap_id : snap_ids) {
+ m_ref_counter++;
+ std::string oid(ObjectMap<>::object_map_name(m_image_ctx->id, snap_id));
+ using klass = RemoveRequest<I>;
+ librados::AioCompletion *comp =
+ create_rados_callback<klass, &klass::handle_remove_object_map>(this);
+
+ int r = m_image_ctx->md_ctx.aio_remove(oid, comp);
+ ceph_assert(r == 0);
+ comp->release();
+ }
+}
+
+template <typename I>
+Context *RemoveRequest<I>::handle_remove_object_map(int *result) {
+ CephContext *cct = m_image_ctx->cct;
+ ldout(cct, 20) << __func__ << ": r=" << *result << dendl;
+
+ {
+ std::lock_guard locker{m_lock};
+ ceph_assert(m_ref_counter > 0);
+ m_ref_counter--;
+
+ if (*result < 0 && *result != -ENOENT) {
+ lderr(cct) << "failed to remove object map: " << cpp_strerror(*result)
+ << dendl;
+ m_error_result = *result;
+ }
+ if (m_ref_counter > 0) {
+ return nullptr;
+ }
+ }
+ if (m_error_result < 0) {
+ *result = m_error_result;
+ }
+ return m_on_finish;
+}
+
+} // namespace object_map
+} // namespace librbd
+
+template class librbd::object_map::RemoveRequest<librbd::ImageCtx>;