fs/bcachefs/chardev.c

25 /* returns with ref on ca->ref */
29 	struct bch_dev *ca;
35 		ca = bch2_dev_tryget_noerror(c, dev);
36 		if (!ca)
46 		ca = bch2_dev_lookup(c, path);
50 	return ca;
329 	struct bch_dev *ca;
341 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
342 	if (IS_ERR(ca))
343 		return PTR_ERR(ca);
345 	return bch2_dev_remove(c, ca, arg.flags);
371 	struct bch_dev *ca;
384 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
385 	if (IS_ERR(ca))
386 		return PTR_ERR(ca);
388 	ret = bch2_dev_offline(c, ca, arg.flags);
389 	bch2_dev_put(ca);
396 	struct bch_dev *ca;
410 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
411 	if (IS_ERR(ca))
412 		return PTR_ERR(ca);
414 	ret = bch2_dev_set_state(c, ca, arg.new_state, arg.flags);
418 	bch2_dev_put(ca);
582 	struct bch_dev *ca;
597 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
598 	if (IS_ERR(ca))
599 		return PTR_ERR(ca);
601 	src = bch2_dev_usage_read(ca);
603 	arg.state		= ca->mi.state;
604 	arg.bucket_size		= ca->mi.bucket_size;
605 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;
613 	bch2_dev_put(ca);
623 	struct bch_dev *ca;
638 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
639 	if (IS_ERR(ca))
640 		return PTR_ERR(ca);
642 	src = bch2_dev_usage_read(ca);
644 	arg.state		= ca->mi.state;
645 	arg.bucket_size		= ca->mi.bucket_size;
647 	arg.nr_buckets		= ca->mi.nbuckets - ca->mi.first_bucket;
665 	bch2_dev_put(ca);
672 	struct bch_dev *ca = NULL;
686 		ca = bch2_device_lookup(c, arg.dev, arg.flags);
687 		ret = PTR_ERR_OR_ZERO(ca);
691 		sb = ca->disk_sb.sb;
704 	bch2_dev_put(ca);
721 	for_each_online_member(c, ca)
722 		if (ca->dev == dev) {
723 			percpu_ref_put(&ca->io_ref);
724 			return ca->dev_idx;
733 	struct bch_dev *ca;
743 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
744 	if (IS_ERR(ca))
745 		return PTR_ERR(ca);
747 	ret = bch2_dev_resize(c, ca, arg.nbuckets);
749 	bch2_dev_put(ca);
756 	struct bch_dev *ca;
769 	ca = bch2_device_lookup(c, arg.dev, arg.flags);
770 	if (IS_ERR(ca))
771 		return PTR_ERR(ca);
773 	ret = bch2_set_nr_journal_buckets(c, ca, arg.nbuckets);
775 	bch2_dev_put(ca);