52 	struct mddev *mddev;		/* RAID array if running */  member
283 struct mddev {  struct
504 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);  argument
533 static inline int __must_check mddev_lock(struct mddev *mddev)  in mddev_lock()  argument
535 	return mutex_lock_interruptible(&mddev->reconfig_mutex);  in mddev_lock()
541 static inline void mddev_lock_nointr(struct mddev *mddev)  in mddev_lock_nointr()  argument
543 	mutex_lock(&mddev->reconfig_mutex);  in mddev_lock_nointr()
546 static inline int mddev_trylock(struct mddev *mddev)  in mddev_trylock()  argument
548 	return mutex_trylock(&mddev->reconfig_mutex);  in mddev_trylock()
550 extern void mddev_unlock(struct mddev *mddev);
568 	bool __must_check (*make_request)(struct mddev *mddev, struct bio *bio);
573 	int (*run)(struct mddev *mddev);
575 	int (*start)(struct mddev *mddev);
576 	void (*free)(struct mddev *mddev, void *priv);
577 	void (*status)(struct seq_file *seq, struct mddev *mddev);
581 	void (*error_handler)(struct mddev *mddev, struct md_rdev *rdev);
582 	int (*hot_add_disk) (struct mddev *mddev, struct md_rdev *rdev);
583 	int (*hot_remove_disk) (struct mddev *mddev, struct md_rdev *rdev);
584 	int (*spare_active) (struct mddev *mddev);
585 	sector_t (*sync_request)(struct mddev *mddev, sector_t sector_nr, int *skipped);
586 	int (*resize) (struct mddev *mddev, sector_t sectors);
587 	sector_t (*size) (struct mddev *mddev, sector_t sectors, int raid_disks);
588 	int (*check_reshape) (struct mddev *mddev);
589 	int (*start_reshape) (struct mddev *mddev);
590 	void (*finish_reshape) (struct mddev *mddev);
591 	void (*update_reshape_pos) (struct mddev *mddev);
596 	void (*quiesce) (struct mddev *mddev, int quiesce);
606 	void *(*takeover) (struct mddev *mddev);
608 	int (*change_consistency_policy)(struct mddev *mddev, const char *buf);
613 	ssize_t (*show)(struct mddev *, char *);
614 	ssize_t (*store)(struct mddev *, const char *, size_t);
630 static inline char * mdname (struct mddev * mddev)  in mdname()  argument
632 	return mddev->gendisk ? mddev->gendisk->disk_name : "mdX";  in mdname()
635 static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_link_rdev()  argument
640 	    mddev->kobj.sd) {  in sysfs_link_rdev()
642 		return sysfs_create_link(&mddev->kobj, &rdev->kobj, nm);  in sysfs_link_rdev()
647 static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_unlink_rdev()  argument
652 	    mddev->kobj.sd) {  in sysfs_unlink_rdev()
654 		sysfs_remove_link(&mddev->kobj, nm);  in sysfs_unlink_rdev()
668 #define rdev_for_each(rdev, mddev)				\  argument
669 	list_for_each_entry(rdev, &((mddev)->disks), same_set)
671 #define rdev_for_each_safe(rdev, tmp, mddev)				\  argument
672 	list_for_each_entry_safe(rdev, tmp, &((mddev)->disks), same_set)
674 #define rdev_for_each_rcu(rdev, mddev)				\  argument
675 	list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
679 	struct mddev		*mddev;  member
699 extern int md_setup_cluster(struct mddev *mddev, int nodes);
700 extern void md_cluster_stop(struct mddev *mddev);
703 	struct mddev *mddev,
707 extern void md_check_recovery(struct mddev *mddev);
708 extern void md_reap_sync_thread(struct mddev *mddev);
709 extern int mddev_init_writes_pending(struct mddev *mddev);
710 extern bool md_write_start(struct mddev *mddev, struct bio *bi);
711 extern void md_write_inc(struct mddev *mddev, struct bio *bi);
712 extern void md_write_end(struct mddev *mddev);
713 extern void md_done_sync(struct mddev *mddev, int blocks, int ok);
714 extern void md_error(struct mddev *mddev, struct md_rdev *rdev);
715 extern void md_finish_reshape(struct mddev *mddev);
717 extern bool __must_check md_flush_request(struct mddev *mddev, struct bio *bio);
718 extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
720 extern int md_super_wait(struct mddev *mddev);
725 extern void md_new_event(struct mddev *mddev);
726 extern void md_allow_write(struct mddev *mddev);
727 extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);
728 extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
729 extern int md_check_no_bitmap(struct mddev *mddev);
730 extern int md_integrity_register(struct mddev *mddev);
731 extern int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
734 extern void mddev_init(struct mddev *mddev);
735 extern int md_run(struct mddev *mddev);
736 extern int md_start(struct mddev *mddev);
737 extern void md_stop(struct mddev *mddev);
738 extern void md_stop_writes(struct mddev *mddev);
742 extern void md_handle_request(struct mddev *mddev, struct bio *bio);
743 extern void mddev_suspend(struct mddev *mddev);
744 extern void mddev_resume(struct mddev *mddev);
746 				   struct mddev *mddev);
748 extern void md_reload_sb(struct mddev *mddev, int raid_disk);
749 extern void md_update_sb(struct mddev *mddev, int force);
751 extern void mddev_create_serial_pool(struct mddev *mddev, struct md_rdev *rdev,
753 extern void mddev_destroy_serial_pool(struct mddev *mddev, struct md_rdev *rdev,
755 struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr);
756 struct md_rdev *md_find_rdev_rcu(struct mddev *mddev, dev_t dev);
763 		if (!test_and_set_bit(MD_BROKEN, &rdev->mddev->flags))  in is_mddev_broken()
765 				mdname(rdev->mddev), md_type);  in is_mddev_broken()
771 static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)  in rdev_dec_pending()  argument
775 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in rdev_dec_pending()
776 		md_wakeup_thread(mddev->thread);  in rdev_dec_pending()
781 static inline int mddev_is_clustered(struct mddev *mddev)  in mddev_is_clustered()  argument
783 	return mddev->cluster_info && mddev->bitmap_info.nodes > 1;  in mddev_is_clustered()
787 static inline void mddev_clear_unsupported_flags(struct mddev *mddev,  in mddev_clear_unsupported_flags()  argument
790 	mddev->flags &= ~unsupported_flags;  in mddev_clear_unsupported_flags()
793 static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)  in mddev_check_writesame()  argument
797 		mddev->queue->limits.max_write_same_sectors = 0;  in mddev_check_writesame()
800 static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio)  in mddev_check_write_zeroes()  argument
804 		mddev->queue->limits.max_write_zeroes_sectors = 0;  in mddev_check_write_zeroes()
812 int md_set_array_info(struct mddev *mddev, struct mdu_array_info_s *info);
813 int md_add_new_disk(struct mddev *mddev, struct mdu_disk_info_s *info);
814 int do_md_run(struct mddev *mddev);