fs/btrfs/dev-replace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) STRATO AG 2012.  All rights reserved.
   4  */
   5
   6 #ifndef BTRFS_DEV_REPLACE_H
   7 #define BTRFS_DEV_REPLACE_H
   8
   9 #include <linux/types.h>
  10 #include <linux/compiler_types.h>
  11
  12 struct btrfs_ioctl_dev_replace_args;
  13 struct btrfs_fs_info;
  14 struct btrfs_trans_handle;
  15 struct btrfs_dev_replace;
  16 struct btrfs_block_group;
  17 struct btrfs_device;
  18
  19 int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);
  20 int btrfs_run_dev_replace(struct btrfs_trans_handle *trans);
  21 int btrfs_dev_replace_by_ioctl(struct btrfs_fs_info *fs_info,
  22                             struct btrfs_ioctl_dev_replace_args *args);
  23 void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
  24                               struct btrfs_ioctl_dev_replace_args *args);
  25 int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info);
  26 void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);
  27 int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);
  28 int __pure btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);
  29 bool btrfs_finish_block_group_to_copy(struct btrfs_device *srcdev,
  30                                       struct btrfs_block_group *cache,
  31                                       u64 physical);
  32 void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info);
  33 void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount);
  34
  35 static inline void btrfs_bio_counter_dec(struct btrfs_fs_info *fs_info)
  36 {
  37         btrfs_bio_counter_sub(fs_info, 1);
  38 }
  39
  40
  41 #endif