108 struct btrfs_space_info {  struct
110 	struct btrfs_space_info *parent;  argument
111 	struct btrfs_space_info *sub_group[BTRFS_SPACE_INFO_SUB_GROUP_MAX];  argument
112 	int subgroup_id;
113 	spinlock_t lock;
115 	u64 total_bytes;	/* total bytes in the space,
117 	u64 bytes_used;		/* total bytes used,
119 	u64 bytes_pinned;	/* total bytes pinned, will be freed when the
121 	u64 bytes_reserved;	/* total bytes the allocator has reserved for
123 	u64 bytes_may_use;	/* number of bytes that may be used for
125 	u64 bytes_readonly;	/* total bytes that are read only */
126 	u64 bytes_zone_unusable;	/* total bytes that are unusable until
129 	u64 max_extent_size;	/* This will hold the maximum extent size of
133 	u64 chunk_size;
139 	int bg_reclaim_threshold;
141 	int clamp;		/* Used to scale our threshold for preemptive
145 	unsigned int full:1;	/* indicates that we cannot allocate any more
147 	unsigned int chunk_alloc:1;	/* set if we are allocating a chunk */
149 	unsigned int flush:1;		/* set if we are trying to make space */
151 	unsigned int force_alloc;	/* set if we need to force a chunk
154 	u64 disk_used;		/* total bytes used on disk */
155 	u64 disk_total;		/* total bytes on disk, takes mirrors into
158 	u64 flags;
160 	struct list_head list;
162 	struct list_head ro_bgs;
163 	struct list_head priority_tickets;
164 	struct list_head tickets;
170 	u64 reclaim_size;
176 	u64 tickets_id;
178 	struct rw_semaphore groups_sem;
180 	struct list_head block_groups[BTRFS_NR_RAID_TYPES];
182 	struct kobject kobj;
183 	struct kobject *block_group_kobjs[BTRFS_NR_RAID_TYPES];
189 	u64 reclaim_count;
195 	u64 reclaim_bytes;
201 	u64 reclaim_errors;
207 	bool dynamic_reclaim;
235 static inline bool btrfs_mixed_space_info(const struct btrfs_space_info *space_info)  in btrfs_mixed_space_info()  argument