xref: /linux-6.15/fs/btrfs/dev-replace.h (revision 22b46bdc)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) STRATO AG 2012.  All rights reserved.
 */

#ifndef BTRFS_DEV_REPLACE_H
#define BTRFS_DEV_REPLACE_H

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

struct btrfs_ioctl_dev_replace_args;
struct btrfs_fs_info;
struct btrfs_trans_handle;
struct btrfs_dev_replace;
struct btrfs_block_group;
struct btrfs_device;

int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);
int btrfs_run_dev_replace(struct btrfs_trans_handle *trans);
int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info,
			    struct btrfs_ioctl_dev_replace_args *args);
void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
			      struct btrfs_ioctl_dev_replace_args *args);
int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info);
void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);
int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);
int __pure btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);
bool btrfs_finish_block_group_to_copy(struct btrfs_device *srcdev,
				      struct btrfs_block_group *cache,
				      u64 physical);
void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info);
void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount);

static inline void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info)
{
	btrfs_bio_counter_sub(fs_info, 1);
}


#endif