111 struct vdev {  struct
115 	uint64_t	vdev_id;	/* child number in vdev parent	*/  argument
116 	uint64_t	vdev_guid;	/* unique ID for this vdev	*/  argument
117 	uint64_t	vdev_guid_sum;	/* self guid + all child guids	*/  argument
118 	uint64_t	vdev_orig_guid;	/* orig. guid prior to remove	*/  argument
119 	uint64_t	vdev_asize;	/* allocatable device capacity	*/  argument
120 	uint64_t	vdev_min_asize;	/* min acceptable asize		*/  argument
121 	uint64_t	vdev_ashift;	/* block alignment shift	*/  argument
122 	uint64_t	vdev_state;	/* see VDEV_STATE_* #defines	*/  argument
123 	uint64_t	vdev_prevstate;	/* used when reopening a vdev	*/  argument
124 	vdev_ops_t	*vdev_ops;	/* vdev operations		*/  argument
125 	spa_t		*vdev_spa;	/* spa for this vdev		*/  argument
126 	void		*vdev_tsd;	/* type-specific data		*/  argument
127 	vnode_t		*vdev_name_vp;	/* vnode for pathname		*/  argument
128 	vnode_t		*vdev_devid_vp;	/* vnode for devid		*/  argument
129 	vdev_t		*vdev_top;	/* top-level vdev		*/  argument
130 	vdev_t		*vdev_parent;	/* parent vdev			*/  argument
131 	vdev_t		**vdev_child;	/* array of children		*/  argument
132 	uint64_t	vdev_children;	/* number of children		*/  argument
133 	space_map_t	vdev_dtl[DTL_TYPES]; /* in-core dirty time logs	*/  argument
134 	vdev_stat_t	vdev_stat;	/* virtual device statistics	*/  argument
135 	boolean_t	vdev_expanding;	/* expand the vdev?		*/  argument
136 	boolean_t	vdev_reopening;	/* reopen in progress?		*/  argument
137 	int		vdev_open_error; /* error on last open		*/  argument
138 	kthread_t	*vdev_open_thread; /* thread opening children	*/  argument
139 	uint64_t	vdev_crtxg;	/* txg when top-level was added */  argument
144 	uint64_t	vdev_ms_array;	/* metaslab array object	*/  argument
145 	uint64_t	vdev_ms_shift;	/* metaslab size shift		*/  argument
146 	uint64_t	vdev_ms_count;	/* number of metaslabs		*/  argument
147 	metaslab_group_t *vdev_mg;	/* metaslab group		*/  argument
148 	metaslab_t	**vdev_ms;	/* metaslab array		*/  argument
149 	txg_list_t	vdev_ms_list;	/* per-txg dirty metaslab lists	*/  argument
150 	txg_list_t	vdev_dtl_list;	/* per-txg dirty DTL lists	*/  argument
151 	txg_node_t	vdev_txg_node;	/* per-txg dirty vdev linkage	*/  argument
152 	boolean_t	vdev_remove_wanted; /* async remove wanted?	*/  argument
153 	boolean_t	vdev_probe_wanted; /* async probe wanted?	*/  argument
154 	uint64_t	vdev_removing;	/* device is being removed?	*/  argument
155 	list_node_t	vdev_config_dirty_node; /* config dirty list	*/  argument
156 	list_node_t	vdev_state_dirty_node; /* state dirty list	*/  argument
157 	uint64_t	vdev_deflate_ratio; /* deflation ratio (x512)	*/  argument
158 	uint64_t	vdev_islog;	/* is an intent log device	*/  argument
159 	uint64_t	vdev_ishole;	/* is a hole in the namespace 	*/  argument
164 	uint64_t	vdev_psize;	/* physical device capacity	*/  argument
165 	space_map_obj_t	vdev_dtl_smo;	/* dirty time log space map obj	*/  argument
166 	txg_node_t	vdev_dtl_node;	/* per-txg dirty DTL linkage	*/  argument
167 	uint64_t	vdev_wholedisk;	/* true if this is a whole disk */  argument
168 	uint64_t	vdev_offline;	/* persistent offline state	*/  argument
169 	uint64_t	vdev_faulted;	/* persistent faulted state	*/  argument
170 	uint64_t	vdev_degraded;	/* persistent degraded state	*/  argument
171 	uint64_t	vdev_removed;	/* persistent removed state	*/  argument
172 	uint64_t	vdev_resilvering; /* persistent resilvering state */  argument
173 	uint64_t	vdev_nparity;	/* number of parity devices for raidz */  argument
174 	char		*vdev_path;	/* vdev path (if any)		*/  argument
175 	char		*vdev_devid;	/* vdev devid (if any)		*/  argument
176 	char		*vdev_physpath;	/* vdev device path (if any)	*/  argument
177 	char		*vdev_fru;	/* physical FRU location	*/  argument
178 	uint64_t	vdev_not_present; /* not present during import	*/  argument
179 	uint64_t	vdev_unspare;	/* unspare when resilvering done */  argument
180 	hrtime_t	vdev_last_try;	/* last reopen time		*/  argument
181 	boolean_t	vdev_nowritecache; /* true if flushwritecache failed */  argument
182 	boolean_t	vdev_checkremove; /* temporary online test	*/  argument
183 	boolean_t	vdev_forcefault; /* force online fault		*/  argument
184 	boolean_t	vdev_splitting;	/* split or repair in progress  */  argument
185 	boolean_t	vdev_delayed_close; /* delayed device close?	*/  argument
186 	uint8_t		vdev_tmpoffline; /* device taken offline temporarily? */  argument
187 	uint8_t		vdev_detached;	/* device detached?		*/  argument
188 	uint8_t		vdev_cant_read;	/* vdev is failing all reads	*/  argument
189 	uint8_t		vdev_cant_write; /* vdev is failing all writes	*/  argument
190 	uint64_t	vdev_isspare;	/* was a hot spare		*/  argument
191 	uint64_t	vdev_isl2cache;	/* was a l2cache device		*/  argument
192 	vdev_queue_t	vdev_queue;	/* I/O deadline schedule queue	*/  argument
193 	vdev_cache_t	vdev_cache;	/* physical block cache		*/  argument
194 	spa_aux_vdev_t	*vdev_aux;	/* for l2cache vdevs		*/  argument
195 	zio_t		*vdev_probe_zio; /* root of current probe	*/  argument
196 	vdev_aux_t	vdev_label_aux;	/* on-disk aux state		*/  argument
205 	kmutex_t	vdev_dtl_lock;	/* vdev_dtl_{map,resilver}	*/  argument
206 	kmutex_t	vdev_stat_lock;	/* vdev_stat			*/  argument
207 	kmutex_t	vdev_probe_lock; /* protects vdev_probe_zio	*/  argument