fs/btrfs/ctree.h

577 struct btrfs_fs_info {  struct
578 	u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
579 	unsigned long flags;
580 	struct btrfs_root *extent_root;
581 	struct btrfs_root *tree_root;
582 	struct btrfs_root *chunk_root;
583 	struct btrfs_root *dev_root;
584 	struct btrfs_root *fs_root;
585 	struct btrfs_root *csum_root;
586 	struct btrfs_root *quota_root;
587 	struct btrfs_root *uuid_root;
588 	struct btrfs_root *free_space_root;
589 	struct btrfs_root *data_reloc_root;
592 	struct btrfs_root *log_root_tree;
594 	spinlock_t fs_roots_radix_lock;
595 	struct radix_tree_root fs_roots_radix;
598 	spinlock_t block_group_cache_lock;
599 	u64 first_logical_byte;
600 	struct rb_root block_group_cache_tree;
603 	atomic64_t free_chunk_space;
606 	struct extent_io_tree excluded_extents;
609 	struct extent_map_tree mapping_tree;
615 	struct btrfs_block_rsv global_block_rsv;
617 	struct btrfs_block_rsv trans_block_rsv;
619 	struct btrfs_block_rsv chunk_block_rsv;
621 	struct btrfs_block_rsv delayed_block_rsv;
623 	struct btrfs_block_rsv delayed_refs_rsv;
625 	struct btrfs_block_rsv empty_block_rsv;
627 	u64 generation;
628 	u64 last_trans_committed;
629 	u64 avg_delayed_ref_runtime;
635 	u64 last_trans_log_full_commit;
636 	unsigned long mount_opt;
641 	unsigned long pending_changes;
642 	unsigned long compress_type:4;
643 	unsigned int compress_level;
644 	u32 commit_interval;
651 	u64 max_inline;
653 	struct btrfs_transaction *running_transaction;
654 	wait_queue_head_t transaction_throttle;
655 	wait_queue_head_t transaction_wait;
656 	wait_queue_head_t transaction_blocked_wait;
657 	wait_queue_head_t async_submit_wait;
669 	spinlock_t super_lock;
670 	struct btrfs_super_block *super_copy;
671 	struct btrfs_super_block *super_for_commit;
672 	struct super_block *sb;
673 	struct inode *btree_inode;
674 	struct mutex tree_log_mutex;
675 	struct mutex transaction_kthread_mutex;
676 	struct mutex cleaner_mutex;
677 	struct mutex chunk_mutex;
683 	struct mutex ro_block_group_mutex;
689 	struct btrfs_stripe_hash_table *stripe_hash_table;
698 	struct mutex ordered_operations_mutex;
700 	struct rw_semaphore commit_root_sem;
702 	struct rw_semaphore cleanup_work_sem;
704 	struct rw_semaphore subvol_sem;
706 	spinlock_t trans_lock;
711 	struct mutex reloc_mutex;
713 	struct list_head trans_list;
714 	struct list_head dead_roots;
715 	struct list_head caching_block_groups;
717 	spinlock_t delayed_iput_lock;
718 	struct list_head delayed_iputs;
719 	atomic_t nr_delayed_iputs;
720 	wait_queue_head_t delayed_iputs_wait;
722 	atomic64_t tree_mod_seq;
725 	rwlock_t tree_mod_log_lock;
726 	struct rb_root tree_mod_log;
727 	struct list_head tree_mod_seq_list;
729 	atomic_t async_delalloc_pages;
734 	spinlock_t ordered_root_lock;
743 	struct list_head ordered_roots;
745 	struct mutex delalloc_root_mutex;
746 	spinlock_t delalloc_root_lock;
748 	struct list_head delalloc_roots;
760 	struct btrfs_workqueue *workers;
761 	struct btrfs_workqueue *delalloc_workers;
762 	struct btrfs_workqueue *flush_workers;
763 	struct btrfs_workqueue *endio_workers;
764 	struct btrfs_workqueue *endio_meta_workers;
765 	struct btrfs_workqueue *endio_raid56_workers;
766 	struct btrfs_workqueue *rmw_workers;
767 	struct btrfs_workqueue *endio_meta_write_workers;
768 	struct btrfs_workqueue *endio_write_workers;
769 	struct btrfs_workqueue *endio_freespace_worker;
770 	struct btrfs_workqueue *caching_workers;
771 	struct btrfs_workqueue *readahead_workers;
778 	struct btrfs_workqueue *fixup_workers;
779 	struct btrfs_workqueue *delayed_workers;
781 	struct task_struct *transaction_kthread;
782 	struct task_struct *cleaner_kthread;
783 	u32 thread_pool_size;
785 	struct kobject *space_info_kobj;
786 	struct kobject *qgroups_kobj;
788 	u64 total_pinned;
791 	struct percpu_counter dirty_metadata_bytes;
792 	struct percpu_counter delalloc_bytes;
793 	struct percpu_counter dio_bytes;
794 	s32 dirty_metadata_batch;
795 	s32 delalloc_batch;
797 	struct list_head dirty_cowonly_roots;
799 	struct btrfs_fs_devices *fs_devices;
806 	struct list_head space_info;
808 	struct btrfs_space_info *data_sinfo;
810 	struct reloc_control *reloc_ctl;
813 	struct btrfs_free_cluster data_alloc_cluster;
816 	struct btrfs_free_cluster meta_alloc_cluster;
819 	spinlock_t defrag_inodes_lock;
820 	struct rb_root defrag_inodes;
821 	atomic_t defrag_running;
824 	seqlock_t profiles_lock;
830 	u64 avail_data_alloc_bits;
831 	u64 avail_metadata_alloc_bits;
832 	u64 avail_system_alloc_bits;
835 	spinlock_t balance_lock;
836 	struct mutex balance_mutex;
837 	atomic_t balance_pause_req;
838 	atomic_t balance_cancel_req;
839 	struct btrfs_balance_control *balance_ctl;
840 	wait_queue_head_t balance_wait_q;
842 	u32 data_chunk_allocations;
843 	u32 metadata_ratio;
845 	void *bdev_holder;
848 	struct mutex scrub_lock;
849 	atomic_t scrubs_running;
850 	atomic_t scrub_pause_req;
851 	atomic_t scrubs_paused;
852 	atomic_t scrub_cancel_req;
853 	wait_queue_head_t scrub_pause_wait;
858 	refcount_t scrub_workers_refcnt;
859 	struct btrfs_workqueue *scrub_workers;
860 	struct btrfs_workqueue *scrub_wr_completion_workers;
861 	struct btrfs_workqueue *scrub_parity_workers;
863 	struct btrfs_discard_ctl discard_ctl;
866 	u32 check_integrity_print_mask;
869 	u64 qgroup_flags;
872 	struct rb_root qgroup_tree;
873 	spinlock_t qgroup_lock;
879 	struct ulist *qgroup_ulist;
885 	struct mutex qgroup_ioctl_lock;
888 	struct list_head dirty_qgroups;
891 	u64 qgroup_seq;
894 	struct mutex qgroup_rescan_lock; /* protects the progress item */
895 	struct btrfs_key qgroup_rescan_progress;
896 	struct btrfs_workqueue *qgroup_rescan_workers;
897 	struct completion qgroup_rescan_completion;
898 	struct btrfs_work qgroup_rescan_work;
899 	bool qgroup_rescan_running;	/* protected by qgroup_rescan_lock */
902 	unsigned long fs_state;
904 	struct btrfs_delayed_root *delayed_root;
907 	spinlock_t reada_lock;
908 	struct radix_tree_root reada_tree;
911 	atomic_t reada_works_cnt;
914 	spinlock_t buffer_lock;
915 	struct radix_tree_root buffer_radix;
918 	int backup_root_index;
921 	struct btrfs_dev_replace dev_replace;
923 	struct semaphore uuid_tree_rescan_sem;
926 	struct work_struct async_reclaim_work;
927 	struct work_struct async_data_reclaim_work;
929 	spinlock_t unused_bgs_lock;
930 	struct list_head unused_bgs;
931 	struct mutex unused_bg_unpin_mutex;
932 	struct mutex delete_unused_bgs_mutex;
935 	u32 nodesize;
936 	u32 sectorsize;
937 	u32 stripesize;
940 	spinlock_t swapfile_pins_lock;
941 	struct rb_root swapfile_pins;
943 	struct crypto_shash *csum_shash;
969 static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)  in btrfs_sb()  argument