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-rw-r--r--src/librbd/operation/SnapshotLimitRequest.cc66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/librbd/operation/SnapshotLimitRequest.cc b/src/librbd/operation/SnapshotLimitRequest.cc
new file mode 100644
index 000000000..17aed5f6a
--- /dev/null
+++ b/src/librbd/operation/SnapshotLimitRequest.cc
@@ -0,0 +1,66 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/operation/SnapshotLimitRequest.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "librbd/ImageCtx.h"
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::SnapshotLimitRequest: "
+
+namespace librbd {
+namespace operation {
+
+template <typename I>
+SnapshotLimitRequest<I>::SnapshotLimitRequest(I &image_ctx,
+ Context *on_finish,
+ uint64_t limit)
+ : Request<I>(image_ctx, on_finish), m_snap_limit(limit) {
+}
+
+template <typename I>
+void SnapshotLimitRequest<I>::send_op() {
+ send_limit_snaps();
+}
+
+template <typename I>
+bool SnapshotLimitRequest<I>::should_complete(int r) {
+ I &image_ctx = this->m_image_ctx;
+ CephContext *cct = image_ctx.cct;
+ ldout(cct, 5) << this << " " << __func__ << " r=" << r << dendl;
+
+ if (r < 0) {
+ lderr(cct) << "encountered error: " << cpp_strerror(r) << dendl;
+ }
+ return true;
+}
+
+template <typename I>
+void SnapshotLimitRequest<I>::send_limit_snaps() {
+ I &image_ctx = this->m_image_ctx;
+ ceph_assert(ceph_mutex_is_locked(image_ctx.owner_lock));
+
+ CephContext *cct = image_ctx.cct;
+ ldout(cct, 5) << this << " " << __func__ << dendl;
+
+ {
+ std::shared_lock image_locker{image_ctx.image_lock};
+
+ librados::ObjectWriteOperation op;
+ cls_client::snapshot_set_limit(&op, m_snap_limit);
+
+ librados::AioCompletion *rados_completion =
+ this->create_callback_completion();
+ int r = image_ctx.md_ctx.aio_operate(image_ctx.header_oid, rados_completion,
+ &op);
+ ceph_assert(r == 0);
+ rados_completion->release();
+ }
+}
+
+} // namespace operation
+} // namespace librbd
+
+template class librbd::operation::SnapshotLimitRequest<librbd::ImageCtx>;