49efa06ffa
- The leaked blocks are defined as allocated but not used ones, i.e., expected ref-count == 0 and actual ref-count <= 2. - Blocks with expected ref-count > 0, or actual ref-count > 2, are treated as unrepairable leaks. - The fixing processing won't be executed if there's any unrepairable leak or errors. - The fixing process implicitly clearing the superblock needs_check flag if there's no error.
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
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//
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// This file is part of the thin-provisioning-tools source.
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//
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// thin-provisioning-tools is free software: you can redistribute it
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// and/or modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// thin-provisioning-tools is distributed in the hope that it will be
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// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with thin-provisioning-tools. If not, see
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// <http://www.gnu.org/licenses/>.
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#ifndef METADATA_CHECKER_H
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#define METADATA_CHECKER_H
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#include "base/error_state.h"
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#include "block-cache/block_cache.h"
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#include "persistent-data/block.h"
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//----------------------------------------------------------------
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namespace thin_provisioning {
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struct check_options {
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enum data_mapping_options {
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DATA_MAPPING_NONE,
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DATA_MAPPING_LEVEL1,
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DATA_MAPPING_LEVEL2,
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};
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enum space_map_options {
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SPACE_MAP_NONE,
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SPACE_MAP_FULL,
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};
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check_options();
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bool check_conformance();
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void set_superblock_only();
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void set_skip_mappings();
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void set_override_mapping_root(bcache::block_address b);
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void set_metadata_snap();
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void set_ignore_non_fatal();
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void set_fix_metadata_leaks();
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bool use_metadata_snap_;
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data_mapping_options data_mapping_opts_;
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space_map_options sm_opts_;
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boost::optional<bcache::block_address> override_mapping_root_;
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bool ignore_non_fatal_;
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bool fix_metadata_leaks_;
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};
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enum output_options {
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OUTPUT_NORMAL,
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OUTPUT_QUIET,
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};
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base::error_state
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check_metadata(std::string const &path,
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check_options const &check_opts,
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output_options output_opts);
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}
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//----------------------------------------------------------------
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#endif
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