62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) Qu Wenruo 2017. All rights reserved.
|
|
*/
|
|
|
|
#ifndef BTRFS_TREE_CHECKER_H
|
|
#define BTRFS_TREE_CHECKER_H
|
|
|
|
#include <uapi/linux/btrfs_tree.h>
|
|
|
|
struct extent_buffer;
|
|
struct btrfs_chunk;
|
|
|
|
/* All the extra info needed to verify the parentness of a tree block. */
|
|
struct btrfs_tree_parent_check {
|
|
/*
|
|
* The owner check against the tree block.
|
|
*
|
|
* Can be 0 to skip the owner check.
|
|
*/
|
|
u64 owner_root;
|
|
|
|
/*
|
|
* Expected transid, can be 0 to skip the check, but such skip
|
|
* should only be utlized for backref walk related code.
|
|
*/
|
|
u64 transid;
|
|
|
|
/*
|
|
* The expected first key.
|
|
*
|
|
* This check can be skipped if @has_first_key is false, such skip
|
|
* can happen for case where we don't have the parent node key,
|
|
* e.g. reading the tree root, doing backref walk.
|
|
*/
|
|
struct btrfs_key first_key;
|
|
bool has_first_key;
|
|
|
|
/* The expected level. Should always be set. */
|
|
u8 level;
|
|
};
|
|
|
|
/*
|
|
* Comprehensive leaf checker.
|
|
* Will check not only the item pointers, but also every possible member
|
|
* in item data.
|
|
*/
|
|
int btrfs_check_leaf_full(struct extent_buffer *leaf);
|
|
|
|
/*
|
|
* Less strict leaf checker.
|
|
* Will only check item pointers, not reading item data.
|
|
*/
|
|
int btrfs_check_leaf_relaxed(struct extent_buffer *leaf);
|
|
int btrfs_check_node(struct extent_buffer *node);
|
|
|
|
int btrfs_check_chunk_valid(struct extent_buffer *leaf,
|
|
struct btrfs_chunk *chunk, u64 logical);
|
|
int btrfs_check_eb_owner(const struct extent_buffer *eb, u64 root_owner);
|
|
|
|
#endif
|