49 	struct mddev *mddev;		/* RAID array if running */  member
259 	struct mddev			*mddev;  member
268 struct mddev {  struct
476 	void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);  argument
502 static inline int __must_check mddev_lock(struct mddev *mddev)  in mddev_lock()  argument
504 	return mutex_lock_interruptible(&mddev->reconfig_mutex);  in mddev_lock()
510 static inline void mddev_lock_nointr(struct mddev *mddev)  in mddev_lock_nointr()  argument
512 	mutex_lock(&mddev->reconfig_mutex);  in mddev_lock_nointr()
515 static inline int mddev_trylock(struct mddev *mddev)  in mddev_trylock()  argument
517 	return mutex_trylock(&mddev->reconfig_mutex);  in mddev_trylock()
519 extern void mddev_unlock(struct mddev *mddev);
537 	bool (*make_request)(struct mddev *mddev, struct bio *bio);
542 	int (*run)(struct mddev *mddev);
544 	int (*start)(struct mddev *mddev);
545 	void (*free)(struct mddev *mddev, void *priv);
546 	void (*status)(struct seq_file *seq, struct mddev *mddev);
550 	void (*error_handler)(struct mddev *mddev, struct md_rdev *rdev);
551 	int (*hot_add_disk) (struct mddev *mddev, struct md_rdev *rdev);
552 	int (*hot_remove_disk) (struct mddev *mddev, struct md_rdev *rdev);
553 	int (*spare_active) (struct mddev *mddev);
554 	sector_t (*sync_request)(struct mddev *mddev, sector_t sector_nr, int *skipped);
555 	int (*resize) (struct mddev *mddev, sector_t sectors);
556 	sector_t (*size) (struct mddev *mddev, sector_t sectors, int raid_disks);
557 	int (*check_reshape) (struct mddev *mddev);
558 	int (*start_reshape) (struct mddev *mddev);
559 	void (*finish_reshape) (struct mddev *mddev);
564 	void (*quiesce) (struct mddev *mddev, int quiesce);
574 	void *(*takeover) (struct mddev *mddev);
577 	int (*congested)(struct mddev *mddev, int bits);
579 	int (*change_consistency_policy)(struct mddev *mddev, const char *buf);
584 	ssize_t (*show)(struct mddev *, char *);
585 	ssize_t (*store)(struct mddev *, const char *, size_t);
601 static inline char * mdname (struct mddev * mddev)  in mdname()  argument
603 	return mddev->gendisk ? mddev->gendisk->disk_name : "mdX";  in mdname()
606 static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_link_rdev()  argument
611 	    mddev->kobj.sd) {  in sysfs_link_rdev()
613 		return sysfs_create_link(&mddev->kobj, &rdev->kobj, nm);  in sysfs_link_rdev()
618 static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev)  in sysfs_unlink_rdev()  argument
623 	    mddev->kobj.sd) {  in sysfs_unlink_rdev()
625 		sysfs_remove_link(&mddev->kobj, nm);  in sysfs_unlink_rdev()
639 #define rdev_for_each(rdev, mddev)				\  argument
640 	list_for_each_entry(rdev, &((mddev)->disks), same_set)
642 #define rdev_for_each_safe(rdev, tmp, mddev)				\  argument
643 	list_for_each_entry_safe(rdev, tmp, &((mddev)->disks), same_set)
645 #define rdev_for_each_rcu(rdev, mddev)				\  argument
646 	list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
650 	struct mddev		*mddev;  member
670 extern int md_setup_cluster(struct mddev *mddev, int nodes);
671 extern void md_cluster_stop(struct mddev *mddev);
674 	struct mddev *mddev,
678 extern void md_check_recovery(struct mddev *mddev);
679 extern void md_reap_sync_thread(struct mddev *mddev);
680 extern int mddev_init_writes_pending(struct mddev *mddev);
681 extern bool md_write_start(struct mddev *mddev, struct bio *bi);
682 extern void md_write_inc(struct mddev *mddev, struct bio *bi);
683 extern void md_write_end(struct mddev *mddev);
684 extern void md_done_sync(struct mddev *mddev, int blocks, int ok);
685 extern void md_error(struct mddev *mddev, struct md_rdev *rdev);
686 extern void md_finish_reshape(struct mddev *mddev);
688 extern int mddev_congested(struct mddev *mddev, int bits);
689 extern void md_flush_request(struct mddev *mddev, struct bio *bio);
690 extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
692 extern int md_super_wait(struct mddev *mddev);
697 extern void md_new_event(struct mddev *mddev);
698 extern void md_allow_write(struct mddev *mddev);
699 extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);
700 extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
701 extern int md_check_no_bitmap(struct mddev *mddev);
702 extern int md_integrity_register(struct mddev *mddev);
703 extern int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
706 extern void mddev_init(struct mddev *mddev);
707 extern int md_run(struct mddev *mddev);
708 extern int md_start(struct mddev *mddev);
709 extern void md_stop(struct mddev *mddev);
710 extern void md_stop_writes(struct mddev *mddev);
714 extern void md_handle_request(struct mddev *mddev, struct bio *bio);
715 extern void mddev_suspend(struct mddev *mddev);
716 extern void mddev_resume(struct mddev *mddev);
718 				   struct mddev *mddev);
720 extern void md_reload_sb(struct mddev *mddev, int raid_disk);
721 extern void md_update_sb(struct mddev *mddev, int force);
723 struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr);
724 struct md_rdev *md_find_rdev_rcu(struct mddev *mddev, dev_t dev);
726 static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)  in rdev_dec_pending()  argument
730 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in rdev_dec_pending()
731 		md_wakeup_thread(mddev->thread);  in rdev_dec_pending()
736 static inline int mddev_is_clustered(struct mddev *mddev)  in mddev_is_clustered()  argument
738 	return mddev->cluster_info && mddev->bitmap_info.nodes > 1;  in mddev_is_clustered()
742 static inline void mddev_clear_unsupported_flags(struct mddev *mddev,  in mddev_clear_unsupported_flags()  argument
745 	mddev->flags &= ~unsupported_flags;  in mddev_clear_unsupported_flags()
748 static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)  in mddev_check_writesame()  argument
752 		mddev->queue->limits.max_write_same_sectors = 0;  in mddev_check_writesame()
755 static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio)  in mddev_check_write_zeroes()  argument
759 		mddev->queue->limits.max_write_zeroes_sectors = 0;  in mddev_check_write_zeroes()