xref: /linux/fs/btrfs/dev-replace.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * Copyright (C) STRATO AG 2012.  All rights reserved.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public
6  * License v2 as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
11  * General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public
14  * License along with this program; if not, write to the
15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16  * Boston, MA 021110-1307, USA.
17  */
18 
19 #if !defined(__BTRFS_DEV_REPLACE__)
20 #define __BTRFS_DEV_REPLACE__
21 
22 struct btrfs_ioctl_dev_replace_args;
23 
24 int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info);
25 int btrfs_run_dev_replace(struct btrfs_trans_handle *trans,
26 			  struct btrfs_fs_info *fs_info);
27 void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info);
28 int btrfs_dev_replace_start(struct btrfs_root *root,
29 			    struct btrfs_ioctl_dev_replace_args *args);
30 void btrfs_dev_replace_status(struct btrfs_fs_info *fs_info,
31 			      struct btrfs_ioctl_dev_replace_args *args);
32 int btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info,
33 			     struct btrfs_ioctl_dev_replace_args *args);
34 void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info);
35 int btrfs_resume_dev_replace_async(struct btrfs_fs_info *fs_info);
36 int btrfs_dev_replace_is_ongoing(struct btrfs_dev_replace *dev_replace);
37 void btrfs_dev_replace_lock(struct btrfs_dev_replace *dev_replace);
38 void btrfs_dev_replace_unlock(struct btrfs_dev_replace *dev_replace);
39 
40 static inline void btrfs_dev_replace_stats_inc(atomic64_t *stat_value)
41 {
42 	atomic64_inc(stat_value);
43 }
44 #endif
45