Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/src/blk/zoned/HMSMRDevice.h b/src/blk/zoned/HMSMRDevice.h
new file mode 100644
index 000000000..edf18b5f0
--- /dev/null
+++ b/src/blk/zoned/HMSMRDevice.h
@@ -0,0 +1,52 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2014 Red Hat
+ * Copyright (C) 2020 Abutalib Aghayev
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef CEPH_BLK_HMSMRDEVICE_H
+#define CEPH_BLK_HMSMRDEVICE_H
+
+#include <atomic>
+
+#include "include/types.h"
+#include "include/interval_set.h"
+#include "common/Thread.h"
+#include "include/utime.h"
+
+#include "aio/aio.h"
+#include "BlockDevice.h"
+#include "../kernel/KernelDevice.h"
+
+
+class HMSMRDevice final : public KernelDevice {
+  int zbd_fd = -1;	///< fd for the zoned block device
+
+public:
+  HMSMRDevice(CephContext* cct, aio_callback_t cb, void *cbpriv,
+              aio_callback_t d_cb, void *d_cbpriv);
+
+  static bool support(const std::string& path);
+
+  // open/close hooks for libzbd
+  int _post_open() override;
+  void _pre_close() override;
+
+  // smr-specific methods
+  bool is_smr() const final { return true; }
+  void reset_all_zones() override;
+  void reset_zone(uint64_t zone) override;
+  std::vector<uint64_t> get_zones() override;
+
+};
+
+#endif //CEPH_BLK_HMSMRDEVICE_H