From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/librbd/trash/RemoveRequest.cc | 171 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 src/librbd/trash/RemoveRequest.cc

(limited to 'src/librbd/trash/RemoveRequest.cc')

diff --git a/src/librbd/trash/RemoveRequest.cc b/src/librbd/trash/RemoveRequest.cc
new file mode 100644
index 00000000..77cbfd81
--- /dev/null
+++ b/src/librbd/trash/RemoveRequest.cc
@@ -0,0 +1,171 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/trash/RemoveRequest.h"
+#include "common/WorkQueue.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/Utils.h"
+#include "librbd/image/RemoveRequest.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::trash::RemoveRequest: " << this \
+                           << " " << __func__ << ": "
+
+namespace librbd {
+namespace trash {
+
+using util::create_context_callback;
+using util::create_rados_callback;
+
+template <typename I>
+void RemoveRequest<I>::send() {
+  set_state();
+}
+
+template <typename I>
+void RemoveRequest<I>::set_state() {
+  ldout(m_cct, 10) << dendl;
+
+  librados::ObjectWriteOperation op;
+  cls_client::trash_state_set(&op, m_image_id, m_trash_set_state,
+                              m_trash_expect_state);
+
+  auto aio_comp = create_rados_callback<
+      RemoveRequest<I>, &RemoveRequest<I>::handle_set_state>(this);
+  int r = m_io_ctx.aio_operate(RBD_TRASH, aio_comp, &op);
+  ceph_assert(r == 0);
+  aio_comp->release();
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_set_state(int r) {
+  ldout(m_cct, 10) << "r=" << r << dendl;
+
+  if (r < 0 && r != -EOPNOTSUPP) {
+    lderr(m_cct) << "error setting trash image state: " << cpp_strerror(r)
+                 << dendl;
+    if (m_ret_val == 0) {
+      m_ret_val = r;
+    }
+    if (m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_REMOVING) {
+      close_image();
+    } else {
+      finish(m_ret_val);
+    }
+    return;
+  }
+
+  if (m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_REMOVING) {
+    remove_image();
+  } else {
+    ceph_assert(m_trash_set_state == cls::rbd::TRASH_IMAGE_STATE_NORMAL);
+    finish(m_ret_val < 0 ? m_ret_val : r);
+  };
+}
+
+template <typename I>
+void RemoveRequest<I>::close_image() {
+  if (m_image_ctx == nullptr) {
+    finish(m_ret_val);
+    return;
+  }
+
+  ldout(m_cct, 10) << dendl;
+
+  auto ctx = create_context_callback<
+      RemoveRequest<I>, &RemoveRequest<I>::handle_close_image>(this);
+  m_image_ctx->state->close(ctx);
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_close_image(int r) {
+  ldout(m_cct, 10) << "r=" << r << dendl;
+
+  if (r < 0) {
+    ldout(m_cct, 5) << "failed to close image:" << cpp_strerror(r) << dendl;
+  }
+
+  m_image_ctx->destroy();
+  m_image_ctx = nullptr;
+  finish(m_ret_val);
+}
+
+template <typename I>
+void RemoveRequest<I>::remove_image() {
+  ldout(m_cct, 10) << dendl;
+
+  auto ctx = create_context_callback<
+      RemoveRequest<I>, &RemoveRequest<I>::handle_remove_image>(this);
+  if (m_image_ctx != nullptr) {
+    auto req = librbd::image::RemoveRequest<I>::create(
+        m_io_ctx, m_image_ctx, m_force, true, m_prog_ctx, m_op_work_queue, ctx);
+    req->send();
+  } else {
+    auto req = librbd::image::RemoveRequest<I>::create(
+        m_io_ctx, "", m_image_id, m_force, true, m_prog_ctx, m_op_work_queue,
+        ctx);
+    req->send();
+  }
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_remove_image(int r) {
+  ldout(m_cct, 10) << "r=" << r << dendl;
+
+  if (r < 0) {
+    ldout(m_cct, 5) << "failed to remove image:" << cpp_strerror(r) << dendl;
+
+    m_ret_val = r;
+    m_trash_set_state = cls::rbd::TRASH_IMAGE_STATE_NORMAL;
+    m_trash_expect_state = cls::rbd::TRASH_IMAGE_STATE_REMOVING;
+    set_state();
+    return;
+  }
+
+  m_image_ctx = nullptr;
+  remove_trash_entry();
+}
+
+template <typename I>
+void RemoveRequest<I>::remove_trash_entry() {
+  ldout(m_cct, 10) << dendl;
+
+  librados::ObjectWriteOperation op;
+  cls_client::trash_remove(&op, m_image_id);
+
+  auto aio_comp = create_rados_callback<
+      RemoveRequest<I>, &RemoveRequest<I>::handle_remove_trash_entry>(this);
+  int r = m_io_ctx.aio_operate(RBD_TRASH, aio_comp, &op);
+  ceph_assert(r == 0);
+  aio_comp->release();
+}
+
+template <typename I>
+void RemoveRequest<I>::handle_remove_trash_entry(int r) {
+  ldout(m_cct, 10) << "r=" << r << dendl;
+
+  if (r < 0 && r != -ENOENT) {
+    lderr(m_cct) << "error removing trash entry: " << cpp_strerror(r) << dendl;
+  }
+
+  finish(0);
+}
+
+template <typename I>
+void RemoveRequest<I>::finish(int r) {
+  ldout(m_cct, 10) << "r=" << r << dendl;
+
+  m_on_finish->complete(r);
+  delete this;
+}
+
+} // namespace trash
+} // namespace librbd
+
+template class librbd::trash::RemoveRequest<librbd::ImageCtx>;
-- 
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