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// -*- 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
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