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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/fs/btrfs/dev-replace.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/*

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 * Copyright (C) STRATO AG 2012.  All rights reserved.

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 */

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#ifndef BTRFS_DEV_REPLACE_H

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#define BTRFS_DEV_REPLACE_H

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#include <linux/types.h>

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#include <linux/compiler_types.h>

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struct btrfs_ioctl_dev_replace_args;

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struct btrfs_fs_info;

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struct btrfs_trans_handle;

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struct btrfs_dev_replace;

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struct btrfs_block_group;

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struct btrfs_device;

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int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);

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int btrfs_run_dev_replace(struct btrfs_trans_handle *trans);

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int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info,

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			    struct btrfs_ioctl_dev_replace_args *args);

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void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,

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			      struct btrfs_ioctl_dev_replace_args *args);

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int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info);

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void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);

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int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);

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bool __pure btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);

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bool btrfs_finish_block_group_to_copy(struct btrfs_device *srcdev,

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				      struct btrfs_block_group *cache,

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				      u64 physical);

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void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info);

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void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount);

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static inline void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info)

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{

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	btrfs_bio_counter_sub(fs_info, 1);

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}

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#endif

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