26 /* returns with ref on ca->ref */
30 	struct bch_dev *ca;  in bch2_device_lookup()  local
36 		ca = bch2_dev_tryget_noerror(c, dev);  in bch2_device_lookup()
37 		if (!ca)  in bch2_device_lookup()
47 		ca = bch2_dev_lookup(c, path);  in bch2_device_lookup()
51 	return ca;  in bch2_device_lookup()
209 	struct bch_dev *ca;  in bch2_ioctl_disk_remove()  local
221 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_remove()
222 	if (IS_ERR(ca))  in bch2_ioctl_disk_remove()
223 		return PTR_ERR(ca);  in bch2_ioctl_disk_remove()
225 	return bch2_dev_remove(c, ca, arg.flags);  in bch2_ioctl_disk_remove()
251 	struct bch_dev *ca;  in bch2_ioctl_disk_offline()  local
264 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_offline()
265 	if (IS_ERR(ca))  in bch2_ioctl_disk_offline()
266 		return PTR_ERR(ca);  in bch2_ioctl_disk_offline()
268 	ret = bch2_dev_offline(c, ca, arg.flags);  in bch2_ioctl_disk_offline()
269 	bch2_dev_put(ca);  in bch2_ioctl_disk_offline()
276 	struct bch_dev *ca;  in bch2_ioctl_disk_set_state()  local
290 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_set_state()
291 	if (IS_ERR(ca))  in bch2_ioctl_disk_set_state()
292 		return PTR_ERR(ca);  in bch2_ioctl_disk_set_state()
294 	ret = bch2_dev_set_state(c, ca, arg.new_state, arg.flags);  in bch2_ioctl_disk_set_state()
298 	bch2_dev_put(ca);  in bch2_ioctl_disk_set_state()
457 	struct bch_dev *ca;  in bch2_ioctl_dev_usage()  local
472 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_dev_usage()
473 	if (IS_ERR(ca))  in bch2_ioctl_dev_usage()
474 		return PTR_ERR(ca);  in bch2_ioctl_dev_usage()
476 	src = bch2_dev_usage_read(ca);  in bch2_ioctl_dev_usage()
478 	arg.state		= ca->mi.state;  in bch2_ioctl_dev_usage()
479 	arg.bucket_size		= ca->mi.bucket_size;  in bch2_ioctl_dev_usage()
480 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;  in bch2_ioctl_dev_usage()
488 	bch2_dev_put(ca);  in bch2_ioctl_dev_usage()
498 	struct bch_dev *ca;  in bch2_ioctl_dev_usage_v2()  local
513 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_dev_usage_v2()
514 	if (IS_ERR(ca))  in bch2_ioctl_dev_usage_v2()
515 		return PTR_ERR(ca);  in bch2_ioctl_dev_usage_v2()
517 	src = bch2_dev_usage_read(ca);  in bch2_ioctl_dev_usage_v2()
519 	arg.state		= ca->mi.state;  in bch2_ioctl_dev_usage_v2()
520 	arg.bucket_size		= ca->mi.bucket_size;  in bch2_ioctl_dev_usage_v2()
522 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;  in bch2_ioctl_dev_usage_v2()
540 	bch2_dev_put(ca);  in bch2_ioctl_dev_usage_v2()
547 	struct bch_dev *ca = NULL;  in bch2_ioctl_read_super()  local
561 		ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_read_super()
562 		ret = PTR_ERR_OR_ZERO(ca);  in bch2_ioctl_read_super()
566 		sb = ca->disk_sb.sb;  in bch2_ioctl_read_super()
579 	bch2_dev_put(ca);  in bch2_ioctl_read_super()
596 	for_each_online_member(c, ca)  in bch2_ioctl_disk_get_idx()
597 		if (ca->dev == dev) {  in bch2_ioctl_disk_get_idx()
598 			percpu_ref_put(&ca->io_ref);  in bch2_ioctl_disk_get_idx()
599 			return ca->dev_idx;  in bch2_ioctl_disk_get_idx()
608 	struct bch_dev *ca;  in bch2_ioctl_disk_resize()  local
618 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_resize()
619 	if (IS_ERR(ca))  in bch2_ioctl_disk_resize()
620 		return PTR_ERR(ca);  in bch2_ioctl_disk_resize()
622 	ret = bch2_dev_resize(c, ca, arg.nbuckets);  in bch2_ioctl_disk_resize()
624 	bch2_dev_put(ca);  in bch2_ioctl_disk_resize()
631 	struct bch_dev *ca;  in bch2_ioctl_disk_resize_journal()  local
644 	ca = bch2_device_lookup(c, arg.dev, arg.flags);  in bch2_ioctl_disk_resize_journal()
645 	if (IS_ERR(ca))  in bch2_ioctl_disk_resize_journal()
646 		return PTR_ERR(ca);  in bch2_ioctl_disk_resize_journal()
648 	ret = bch2_set_nr_journal_buckets(c, ca, arg.nbuckets);  in bch2_ioctl_disk_resize_journal()
650 	bch2_dev_put(ca);  in bch2_ioctl_disk_resize_journal()