31 /* returns with ref on ca->ref */
35 	struct bch_dev *ca;  in bch2_device_lookup()  local
42 		ca = rcu_dereference(c->devs[dev]);  in bch2_device_lookup()
43 		if (ca)  in bch2_device_lookup()
44 			percpu_ref_get(&ca->ref);  in bch2_device_lookup()
47 		if (!ca)  in bch2_device_lookup()
57 		ca = bch2_dev_lookup(c, path);  in bch2_device_lookup()
61 	return ca;  in bch2_device_lookup()
314 	struct bch_dev *ca;  in bch2_ioctl_disk_remove()  local
326 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_remove()
327 	if (IS_ERR(ca))  in bch2_ioctl_disk_remove()
328 		return PTR_ERR(ca);  in bch2_ioctl_disk_remove()
330 	return bch2_dev_remove(c, ca, arg.flags);  in bch2_ioctl_disk_remove()
356 	struct bch_dev *ca;  in bch2_ioctl_disk_offline()  local
369 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_offline()
370 	if (IS_ERR(ca))  in bch2_ioctl_disk_offline()
371 		return PTR_ERR(ca);  in bch2_ioctl_disk_offline()
373 	ret = bch2_dev_offline(c, ca, arg.flags);  in bch2_ioctl_disk_offline()
374 	percpu_ref_put(&ca->ref);  in bch2_ioctl_disk_offline()
381 	struct bch_dev *ca;  in bch2_ioctl_disk_set_state()  local
395 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_set_state()
396 	if (IS_ERR(ca))  in bch2_ioctl_disk_set_state()
397 		return PTR_ERR(ca);  in bch2_ioctl_disk_set_state()
399 	ret = bch2_dev_set_state(c, ca, arg.new_state, arg.flags);  in bch2_ioctl_disk_set_state()
403 	percpu_ref_put(&ca->ref);  in bch2_ioctl_disk_set_state()
567 	struct bch_dev *ca;  in bch2_ioctl_dev_usage()  local
582 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_dev_usage()
583 	if (IS_ERR(ca))  in bch2_ioctl_dev_usage()
584 		return PTR_ERR(ca);  in bch2_ioctl_dev_usage()
586 	src = bch2_dev_usage_read(ca);  in bch2_ioctl_dev_usage()
588 	arg.state		= ca->mi.state;  in bch2_ioctl_dev_usage()
589 	arg.bucket_size		= ca->mi.bucket_size;  in bch2_ioctl_dev_usage()
590 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;  in bch2_ioctl_dev_usage()
598 	percpu_ref_put(&ca->ref);  in bch2_ioctl_dev_usage()
608 	struct bch_dev *ca;  in bch2_ioctl_dev_usage_v2()  local
623 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_dev_usage_v2()
624 	if (IS_ERR(ca))  in bch2_ioctl_dev_usage_v2()
625 		return PTR_ERR(ca);  in bch2_ioctl_dev_usage_v2()
627 	src = bch2_dev_usage_read(ca);  in bch2_ioctl_dev_usage_v2()
629 	arg.state		= ca->mi.state;  in bch2_ioctl_dev_usage_v2()
630 	arg.bucket_size		= ca->mi.bucket_size;  in bch2_ioctl_dev_usage_v2()
632 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;  in bch2_ioctl_dev_usage_v2()
650 	percpu_ref_put(&ca->ref);  in bch2_ioctl_dev_usage_v2()
657 	struct bch_dev *ca = NULL;  in bch2_ioctl_read_super()  local
671 		ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_read_super()
673 		if (IS_ERR(ca)) {  in bch2_ioctl_read_super()
674 			ret = PTR_ERR(ca);  in bch2_ioctl_read_super()
678 		sb = ca->disk_sb.sb;  in bch2_ioctl_read_super()
691 	if (!IS_ERR_OR_NULL(ca))  in bch2_ioctl_read_super()
692 		percpu_ref_put(&ca->ref);  in bch2_ioctl_read_super()
708 	for_each_online_member(c, ca)  in bch2_ioctl_disk_get_idx()
709 		if (ca->dev == dev) {  in bch2_ioctl_disk_get_idx()
710 			percpu_ref_put(&ca->io_ref);  in bch2_ioctl_disk_get_idx()
711 			return ca->dev_idx;  in bch2_ioctl_disk_get_idx()
720 	struct bch_dev *ca;  in bch2_ioctl_disk_resize()  local
730 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_resize()
731 	if (IS_ERR(ca))  in bch2_ioctl_disk_resize()
732 		return PTR_ERR(ca);  in bch2_ioctl_disk_resize()
734 	ret = bch2_dev_resize(c, ca, arg.nbuckets);  in bch2_ioctl_disk_resize()
736 	percpu_ref_put(&ca->ref);  in bch2_ioctl_disk_resize()
743 	struct bch_dev *ca;  in bch2_ioctl_disk_resize_journal()  local
756 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_resize_journal()
757 	if (IS_ERR(ca))  in bch2_ioctl_disk_resize_journal()
758 		return PTR_ERR(ca);  in bch2_ioctl_disk_resize_journal()
760 	ret = bch2_set_nr_journal_buckets(c, ca, arg.nbuckets);  in bch2_ioctl_disk_resize_journal()
762 	percpu_ref_put(&ca->ref);  in bch2_ioctl_disk_resize_journal()