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linux/fs/btrfs/ref-verify.h

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btrfs: replace GPL boilerplate by SPDX -- headers Remove GPL boilerplate text (long, short, one-line) and keep the rest, ie. personal, company or original source copyright statements. Add the SPDX header. Unify the include protection macros to match the file names. Signed-off-by: David Sterba <dsterba@suse.com>
2018-04-03 17:16:55 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
Btrfs: add a extent ref verify tool We were having corruption issues that were tied back to problems with the extent tree. In order to track them down I built this tool to try and find the culprit, which was pretty successful. If you compile with this tool on it will live verify every ref update that the fs makes and make sure it is consistent and valid. I've run this through with xfstests and haven't gotten any false positives. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update error messages, add fixup from Dan Carpenter to handle errors of read_tree_block ] Signed-off-by: David Sterba <dsterba@suse.com>
2017-09-29 19:43:50 +00:00
/*
* Copyright (C) 2014 Facebook. All rights reserved.
*/
btrfs: replace GPL boilerplate by SPDX -- headers Remove GPL boilerplate text (long, short, one-line) and keep the rest, ie. personal, company or original source copyright statements. Add the SPDX header. Unify the include protection macros to match the file names. Signed-off-by: David Sterba <dsterba@suse.com>
2018-04-03 17:16:55 +00:00
#ifndef BTRFS_REF_VERIFY_H
#define BTRFS_REF_VERIFY_H
Btrfs: add a extent ref verify tool We were having corruption issues that were tied back to problems with the extent tree. In order to track them down I built this tool to try and find the culprit, which was pretty successful. If you compile with this tool on it will live verify every ref update that the fs makes and make sure it is consistent and valid. I've run this through with xfstests and haven't gotten any false positives. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update error messages, add fixup from Dan Carpenter to handle errors of read_tree_block ] Signed-off-by: David Sterba <dsterba@suse.com>
2017-09-29 19:43:50 +00:00
#ifdef CONFIG_BTRFS_FS_REF_VERIFY
int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info);
void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod() It's a perfect match for btrfs_ref_tree_mod() to use btrfs_ref, as btrfs_ref describes a metadata/data reference update comprehensively. Now we have one less function use confusing owner/level trick. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-04 06:45:33 +00:00
int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
struct btrfs_ref *generic_ref);
Btrfs: add a extent ref verify tool We were having corruption issues that were tied back to problems with the extent tree. In order to track them down I built this tool to try and find the culprit, which was pretty successful. If you compile with this tool on it will live verify every ref update that the fs makes and make sure it is consistent and valid. I've run this through with xfstests and haven't gotten any false positives. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update error messages, add fixup from Dan Carpenter to handle errors of read_tree_block ] Signed-off-by: David Sterba <dsterba@suse.com>
2017-09-29 19:43:50 +00:00
void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info, u64 start,
u64 len);
static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
{
spin_lock_init(&fs_info->ref_verify_lock);
fs_info->block_tree = RB_ROOT;
}
#else
static inline int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
{
return 0;
}
static inline void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info)
{
}
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod() It's a perfect match for btrfs_ref_tree_mod() to use btrfs_ref, as btrfs_ref describes a metadata/data reference update comprehensively. Now we have one less function use confusing owner/level trick. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2019-04-04 06:45:33 +00:00
static inline int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
struct btrfs_ref *generic_ref)
Btrfs: add a extent ref verify tool We were having corruption issues that were tied back to problems with the extent tree. In order to track them down I built this tool to try and find the culprit, which was pretty successful. If you compile with this tool on it will live verify every ref update that the fs makes and make sure it is consistent and valid. I've run this through with xfstests and haven't gotten any false positives. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update error messages, add fixup from Dan Carpenter to handle errors of read_tree_block ] Signed-off-by: David Sterba <dsterba@suse.com>
2017-09-29 19:43:50 +00:00
{
return 0;
}
static inline void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info,
u64 start, u64 len)
{
}
static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
{
}
#endif /* CONFIG_BTRFS_FS_REF_VERIFY */
btrfs: replace GPL boilerplate by SPDX -- headers Remove GPL boilerplate text (long, short, one-line) and keep the rest, ie. personal, company or original source copyright statements. Add the SPDX header. Unify the include protection macros to match the file names. Signed-off-by: David Sterba <dsterba@suse.com>
2018-04-03 17:16:55 +00:00
#endif
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