43 	struct mddev *mddev;		/* RAID array if running */  member
196 struct mddev {  struct
197 	void				*private;
198 	struct md_personality		*pers;
199 	dev_t				unit;
200 	int				md_minor;
201 	struct list_head 		disks;
202 	unsigned long			flags;
208 	int				suspended;
209 	atomic_t			active_io;
210 	int				ro;
211 	int				sysfs_active; /* set when sysfs deletes
215 	int				ready; /* See when safe to pass 
217 	struct gendisk			*gendisk;
219 	struct kobject			kobj;
220 	int				hold_active;
225 	int				major_version,
226 					minor_version,
227 					patch_version;
228 	int				persistent;
229 	int 				external;	/* metadata is
231 	char				metadata_type[17]; /* externally set*/
232 	int				chunk_sectors;
233 	time_t				ctime, utime;
234 	int				level, layout;
235 	char				clevel[16];
236 	int				raid_disks;
237 	int				max_disks;
238 	sector_t			dev_sectors; 	/* used size of
240 	sector_t			array_sectors; /* exported array size */
241 	int				external_size; /* size managed
243 	__u64				events;
249 	int				can_decrease_events;
251 	char				uuid[16];
258 	sector_t			reshape_position;
259 	int				delta_disks, new_level, new_layout;
260 	int				new_chunk_sectors;
262 	atomic_t			plug_cnt;	/* If device is expecting
265 	struct md_thread		*thread;	/* management thread */
266 	struct md_thread		*sync_thread;	/* doing resync or reconstruct */
267 	sector_t			curr_resync;	/* last block scheduled */
274 	sector_t			curr_resync_completed;
275 	unsigned long			resync_mark;	/* a recent timestamp */
276 	sector_t			resync_mark_cnt;/* blocks written at resync_mark */
277 	sector_t			curr_mark_cnt; /* blocks scheduled now */
279 	sector_t			resync_max_sectors; /* may be set by personality */
281 	sector_t			resync_mismatches; /* count of sectors where
286 	sector_t			suspend_lo;
287 	sector_t			suspend_hi;
289 	int				sync_speed_min;
290 	int				sync_speed_max;
293 	int				parallel_resync;
295 	int				ok_start_degraded;
320 	unsigned long			recovery;
326 	int				recovery_disabled;
328 	int				in_sync;	/* know to not need resync */
338 	struct mutex			open_mutex;
339 	struct mutex			reconfig_mutex;
340 	atomic_t			active;		/* general refcount */
341 	atomic_t			openers;	/* number of active opens */
343 	int				changed;	/* True if we might need to
345 	int				degraded;	/* whether md should consider
349 	atomic_t			recovery_active; /* blocks scheduled, but not written */
350 	wait_queue_head_t		recovery_wait;
351 	sector_t			recovery_cp;
352 	sector_t			resync_min;	/* user requested sync
354 	sector_t			resync_max;	/* resync should pause
357 	struct sysfs_dirent		*sysfs_state;	/* handle for 'array_state'
360 	struct sysfs_dirent		*sysfs_action;  /* handle for 'sync_action' */
362 	struct work_struct del_work;	/* used for delayed sysfs removal */
364 	spinlock_t			write_lock;
365 	wait_queue_head_t		sb_wait;	/* for waiting on superblock updates */
366 	atomic_t			pending_writes;	/* number of active superblock writes */
368 	unsigned int			safemode;	/* if set, update "clean" superblock
371 	unsigned int			safemode_delay;
372 	struct timer_list		safemode_timer;
373 	atomic_t			writes_pending; 
397 	struct list_head		all_mddevs;  argument
411 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);  argument
415 static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)  in rdev_dec_pending()
488 static inline char * mdname (struct mddev * mddev)  in mdname()
493 static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_link_rdev()
503 static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_unlink_rdev()
522 #define rdev_for_each(rdev, tmp, mddev)				\  argument
525 #define rdev_for_each_rcu(rdev, mddev)				\  argument
530 	struct mddev		*mddev;  member