From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/librbd/object_map/InvalidateRequest.cc | 83 ++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 src/librbd/object_map/InvalidateRequest.cc

(limited to 'src/librbd/object_map/InvalidateRequest.cc')

diff --git a/src/librbd/object_map/InvalidateRequest.cc b/src/librbd/object_map/InvalidateRequest.cc
new file mode 100644
index 000000000..bf2db9660
--- /dev/null
+++ b/src/librbd/object_map/InvalidateRequest.cc
@@ -0,0 +1,83 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/object_map/InvalidateRequest.h"
+#include "common/dout.h"
+#include "librbd/ExclusiveLock.h"
+#include "librbd/ImageCtx.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::object_map::InvalidateRequest: "
+
+namespace librbd {
+namespace object_map {
+
+template <typename I>
+InvalidateRequest<I>* InvalidateRequest<I>::create(I &image_ctx,
+                                                   uint64_t snap_id, bool force,
+                                                   Context *on_finish) {
+  return new InvalidateRequest<I>(image_ctx, snap_id, force, on_finish);
+}
+
+template <typename I>
+void InvalidateRequest<I>::send() {
+  I &image_ctx = this->m_image_ctx;
+  ceph_assert(ceph_mutex_is_locked(image_ctx.owner_lock));
+  ceph_assert(ceph_mutex_is_wlocked(image_ctx.image_lock));
+
+  uint64_t snap_flags;
+  int r = image_ctx.get_flags(m_snap_id, &snap_flags);
+  if (r < 0 || ((snap_flags & RBD_FLAG_OBJECT_MAP_INVALID) != 0)) {
+    this->async_complete(r);
+    return;
+  }
+
+  CephContext *cct = image_ctx.cct;
+  lderr(cct) << this << " invalidating object map in-memory" << dendl;
+
+  // update in-memory flags
+  uint64_t flags = RBD_FLAG_OBJECT_MAP_INVALID;
+  if ((image_ctx.features & RBD_FEATURE_FAST_DIFF) != 0) {
+    flags |= RBD_FLAG_FAST_DIFF_INVALID;
+  }
+
+  r = image_ctx.update_flags(m_snap_id, flags, true);
+  if (r < 0) {
+    this->async_complete(r);
+    return;
+  }
+
+  // do not update on-disk flags if not image owner
+  if (image_ctx.image_watcher == nullptr ||
+      (!m_force && m_snap_id == CEPH_NOSNAP &&
+       image_ctx.exclusive_lock != nullptr &&
+       !image_ctx.exclusive_lock->is_lock_owner())) {
+    this->async_complete(-EROFS);
+    return;
+  }
+
+  lderr(cct) << this << " invalidating object map on-disk" << dendl;
+  librados::ObjectWriteOperation op;
+  cls_client::set_flags(&op, m_snap_id, flags, flags);
+
+  librados::AioCompletion *rados_completion =
+    this->create_callback_completion();
+  r = image_ctx.md_ctx.aio_operate(image_ctx.header_oid, rados_completion,
+                                   &op);
+  ceph_assert(r == 0);
+  rados_completion->release();
+}
+
+template <typename I>
+bool InvalidateRequest<I>::should_complete(int r) {
+  I &image_ctx = this->m_image_ctx;
+  CephContext *cct = image_ctx.cct;
+  lderr(cct) << this << " " << __func__ << ": r=" << r << dendl;
+  return true;
+}
+
+} // namespace object_map
+} // namespace librbd
+
+template class librbd::object_map::InvalidateRequest<librbd::ImageCtx>;
-- 
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