fs/btrfs/volumes.h

110 struct btrfs_device {  struct
111 	struct list_head dev_list; /* device_list_mutex */
112 	struct list_head dev_alloc_list; /* chunk mutex */
113 	struct list_head post_commit_list; /* chunk mutex */
114 	struct btrfs_fs_devices *fs_devices;
115 	struct btrfs_fs_info *fs_info;
117 	struct rcu_string __rcu *name;
119 	u64 generation;
121 	struct file *bdev_file;
122 	struct block_device *bdev;
124 	struct btrfs_zoned_device_info *zone_info;
130 	dev_t devt;
131 	unsigned long dev_state;
132 	blk_status_t last_flush_error;
135 	seqcount_t data_seqcount;
139 	u64 devid;
142 	u64 total_bytes;
145 	u64 disk_total_bytes;
148 	u64 bytes_used;
151 	u32 io_align;
154 	u32 io_width;
156 	u64 type;
162 	atomic_t sb_write_errors;
165 	u32 sector_size;
168 	u8 uuid[BTRFS_UUID_SIZE];
176 	u64 commit_total_bytes;
179 	u64 commit_bytes_used;
182 	struct bio flush_bio;
183 	struct completion flush_wait;
186 	struct scrub_ctx *scrub_ctx;
190 	int dev_stats_valid;
193 	atomic_t dev_stats_ccnt;
194 	atomic_t dev_stat_values[BTRFS_DEV_STAT_VALUES_MAX];
196 	struct extent_io_tree alloc_state;
221 	 * points to a struct btrfs_device.  argument