47 struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
49 void readahead_tree_block(struct btrfs_root *root, u64 bytenr);
50 int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr,
52 struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
59 void close_ctree(struct btrfs_root *root);
61 		      struct btrfs_root *root, int max_mirrors);
65 int btrfs_commit_super(struct btrfs_root *root);
70 int btrfs_init_fs_root(struct btrfs_root *root);
72 			 struct btrfs_root *root);
86 void btrfs_btree_balance_dirty(struct btrfs_root *root);
87 void btrfs_btree_balance_dirty_nodelay(struct btrfs_root *root);
89 				 struct btrfs_root *root);
90 void btrfs_free_fs_root(struct btrfs_root *root);
103 static inline struct btrfs_root *btrfs_grab_fs_root(struct btrfs_root *root)  in btrfs_grab_fs_root()  argument
105 	if (atomic_inc_not_zero(&root->refs))  in btrfs_grab_fs_root()
106 		return root;  in btrfs_grab_fs_root()
110 static inline void btrfs_put_fs_root(struct btrfs_root *root)  in btrfs_put_fs_root()  argument
112 	if (atomic_dec_and_test(&root->refs))  in btrfs_put_fs_root()
113 		kfree(root);  in btrfs_put_fs_root()
136 		       struct btrfs_root *root);
138 				  struct btrfs_root *root);