Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 49 insertions, 0 deletions

diff --git a/src/os/filestore/BtrfsFileStoreBackend.h b/src/os/filestore/BtrfsFileStoreBackend.h
new file mode 100644
index 00000000..0794be2d
--- /dev/null
+++ b/src/os/filestore/BtrfsFileStoreBackend.h
@@ -0,0 +1,49 @@
+// -*- 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) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * 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_BTRFSFILESTOREBACKEDN_H
+#define CEPH_BTRFSFILESTOREBACKEDN_H
+
+#if defined(__linux__)
+#include "GenericFileStoreBackend.h"
+
+class BtrfsFileStoreBackend : public GenericFileStoreBackend {
+private:
+  bool has_clone_range;       ///< clone range ioctl is supported
+  bool has_snap_create;       ///< snap create ioctl is supported
+  bool has_snap_destroy;      ///< snap destroy ioctl is supported
+  bool has_snap_create_v2;    ///< snap create v2 ioctl (async!) is supported
+  bool has_wait_sync;         ///< wait sync ioctl is supported
+  bool stable_commits;
+  bool m_filestore_btrfs_clone_range;
+  bool m_filestore_btrfs_snap;
+public:
+  explicit BtrfsFileStoreBackend(FileStore *fs);
+  ~BtrfsFileStoreBackend() override {}
+  const char *get_name() override {
+    return "btrfs";
+  }
+  int detect_features() override;
+  bool can_checkpoint() override;
+  int create_current() override;
+  int list_checkpoints(list<string>& ls) override;
+  int create_checkpoint(const string& name, uint64_t *cid) override;
+  int sync_checkpoint(uint64_t cid) override;
+  int rollback_to(const string& name) override;
+  int destroy_checkpoint(const string& name) override;
+  int syncfs() override;
+  int clone_range(int from, int to, uint64_t srcoff, uint64_t len, uint64_t dstoff) override;
+};
+#endif
+#endif