1851 struct btrfs_root {  struct
1855 	struct btrfs_root *log_root;  argument
1856 	struct btrfs_root *reloc_root;  argument
1859 	struct btrfs_root_item root_item;  argument
1860 	struct btrfs_key root_key;
1861 	struct btrfs_fs_info *fs_info;
1862 	struct extent_io_tree dirty_log_pages;
1864 	struct mutex objectid_mutex;
1866 	spinlock_t accounting_lock;
1867 	struct btrfs_block_rsv *block_rsv;
1870 	struct btrfs_free_space_ctl *free_ino_ctl;
1871 	enum btrfs_caching_type ino_cache_state;
1872 	spinlock_t ino_cache_lock;
1873 	wait_queue_head_t ino_cache_wait;
1874 	struct btrfs_free_space_ctl *free_ino_pinned;
1875 	u64 ino_cache_progress;
1876 	struct inode *ino_cache_inode;
1878 	struct mutex log_mutex;
1879 	wait_queue_head_t log_writer_wait;
1880 	wait_queue_head_t log_commit_wait[2];
1881 	struct list_head log_ctxs[2];
1882 	atomic_t log_writers;
1883 	atomic_t log_commit[2];
1884 	atomic_t log_batch;
1885 	int log_transid;
1887 	int log_transid_committed;
1889 	int last_log_commit;
1890 	pid_t log_start_pid;
1892 	u64 objectid;
1893 	u64 last_trans;
1896 	u32 sectorsize;
1899 	u32 nodesize;
1901 	u32 stripesize;
1903 	u32 type;
1905 	u64 highest_objectid;
1908 	u64 alloc_bytenr;
1910 	u64 defrag_trans_start;
1911 	struct btrfs_key defrag_progress;
1912 	struct btrfs_key defrag_max;
1913 	char *name;
1916 	struct list_head dirty_list;
1918 	struct list_head root_list;
1920 	spinlock_t log_extents_lock[2];
1921 	struct list_head logged_list[2];
1923 	spinlock_t orphan_lock;
1924 	atomic_t orphan_inodes;
1925 	struct btrfs_block_rsv *orphan_block_rsv;
1926 	int orphan_cleanup_state;
1928 	spinlock_t inode_lock;
1930 	struct rb_root inode_tree;
1936 	struct radix_tree_root delayed_nodes_tree;
1941 	dev_t anon_dev;
1943 	spinlock_t root_item_lock;
1944 	atomic_t refs;
1946 	struct mutex delalloc_mutex;
1947 	spinlock_t delalloc_lock;
1953 	struct list_head delalloc_inodes;
1954 	struct list_head delalloc_root;
1955 	u64 nr_delalloc_inodes;
1957 	struct mutex ordered_extent_mutex;
1962 	spinlock_t ordered_extent_lock;
1969 	struct list_head ordered_extents;
1970 	struct list_head ordered_root;
1971 	u64 nr_ordered_extents;
1977 	int send_in_progress;
1978 	struct btrfs_subvolume_writers *subv_writers;
1979 	atomic_t will_be_snapshoted;
1982 	atomic_t qgroup_meta_rsv;