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diff --git a/src/ceph/src/os/filestore/BtrfsFileStoreBackend.h b/src/ceph/src/os/filestore/BtrfsFileStoreBackend.h
deleted file mode 100644
index 0794be2..0000000
--- a/src/ceph/src/os/filestore/BtrfsFileStoreBackend.h
+++ /dev/null
@@ -1,49 +0,0 @@
-// -*- 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