1  /* SPDX-License-Identifier: GPL-2.0 */
2  
3  #ifndef BTRFS_SUPER_H
4  #define BTRFS_SUPER_H
5  
6  #include <linux/types.h>
7  #include <linux/fs.h>
8  #include "fs.h"
9  
10  struct super_block;
11  struct btrfs_fs_info;
12  
13  bool btrfs_check_options(const struct btrfs_fs_info *info,
14  			 unsigned long long *mount_opt,
15  			 unsigned long flags);
16  int btrfs_sync_fs(struct super_block *sb, int wait);
17  char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
18  					  u64 subvol_objectid);
19  void btrfs_set_free_space_cache_settings(struct btrfs_fs_info *fs_info);
20  
btrfs_sb(struct super_block * sb)21  static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
22  {
23  	return sb->s_fs_info;
24  }
25  
btrfs_set_sb_rdonly(struct super_block * sb)26  static inline void btrfs_set_sb_rdonly(struct super_block *sb)
27  {
28  	sb->s_flags |= SB_RDONLY;
29  	set_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
30  }
31  
btrfs_clear_sb_rdonly(struct super_block * sb)32  static inline void btrfs_clear_sb_rdonly(struct super_block *sb)
33  {
34  	sb->s_flags &= ~SB_RDONLY;
35  	clear_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
36  }
37  
38  #endif
39