Open Menu / fs / btrfs / ref-verify.h 
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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2014 Facebook.  All rights reserved.
 */

#ifndef BTRFS_REF_VERIFY_H
#define BTRFS_REF_VERIFY_H

#include <linux/types.h>
#include <linux/rbtree_types.h>

struct btrfs_fs_info;
struct btrfs_ref;

#ifdef CONFIG_BTRFS_DEBUG

#include <linux/spinlock.h>

int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info);
void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);
int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
		       const struct btrfs_ref *generic_ref);
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)
{
}

static inline int btrfs_ref_tree_mod(struct btrfs_fs_info *fs_info,
				     const struct btrfs_ref *generic_ref)
{
	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_DEBUG */

#endif