fs/bcachefs/super.c

405 	bool ret = !test_and_set_bit(BCH_FS_emergency_ro, &c->flags);
411 	return ret;
416 	int ret;
425 	ret = bch2_copygc_start(c);
426 	if (ret) {
428 		return ret;
431 	ret = bch2_rebalance_start(c);
432 	if (ret) {
434 		return ret;
442 	int ret;
454 	ret = bch2_sb_members_v2_init(c);
455 	if (ret)
458 	ret = bch2_fs_mark_dirty(c);
459 	if (ret)
488 	ret = bch2_gc_thread_start(c);
489 	if (ret) {
491 		return ret;
494 	ret = bch2_journal_reclaim_start(&c->journal);
495 	if (ret)
499 		ret = bch2_fs_read_write_late(c);
500 		if (ret)
514 	return ret;
686 	int ret = 0;
695 	ret = bch2_fs_chardev_init(c);
696 	if (ret) {
698 		return ret;
703 	ret = kobject_add(&c->kobj, NULL, "%pU", c->sb.user_uuid.b) ?:
711 	if (ret) {
713 		return ret;
719 		ret = bch2_dev_sysfs_online(c, ca);
720 		if (ret) {
731 	return ret;
739 	int ret = 0;
832 	ret = percpu_init_rwsem(&c->mark_lock);
833 	if (ret)
837 	ret = bch2_sb_to_fs(c, sb);
840 	if (ret)
844 	ret = name.allocation_failure ? -BCH_ERR_ENOMEM_fs_name_alloc : 0;
845 	if (ret)
861 	ret = bch2_opts_from_sb(&c->opts, sb);
862 	if (ret)
877 		ret = -EFAULT;
913 		ret = -BCH_ERR_ENOMEM_fs_other_alloc;
917 	ret = bch2_fs_counters_init(c) ?:
939 	if (ret)
945 			ret = -EEXIST;
958 	ret = bch2_fs_online(c);
961 	if (ret)
967 	c = ERR_PTR(ret);
1009 	int ret;
1019 	ret = bch2_sb_members_v2_init(c);
1020 	if (ret) {
1034 		ret = -BCH_ERR_ENOSPC_sb;
1042 	ret = BCH_SB_INITIALIZED(c->disk_sb.sb)
1045 	if (ret)
1048 	ret = bch2_opts_check_may_set(c);
1049 	if (ret)
1054 		ret = -EINVAL;
1063 		ret = !test_bit(BCH_FS_rw, &c->flags)
1066 		if (ret)
1070 	ret = 0;
1072 	if (ret)
1073 		bch_err_msg(c, ret, "starting filesystem");
1077 	return ret;
1258 	int ret;
1264 		ret = kobject_add(&ca->kobj, &c->kobj,
1266 		if (ret)
1267 			return ret;
1273 		ret = sysfs_create_link(block, &ca->kobj, "bcachefs");
1274 		if (ret)
1275 			return ret;
1277 		ret = sysfs_create_link(&ca->kobj, block, "block");
1278 		if (ret)
1279 			return ret;
1351 	int ret = 0;
1363 	return ret;
1372 	unsigned ret;
1388 	ret = bch2_dev_journal_init(ca, sb->sb);
1389 	if (ret)
1390 		return ret;
1406 	int ret;
1419 	ret = __bch2_dev_attach_bdev(ca, sb);
1420 	if (ret)
1421 		return ret;
1550 	int ret = 0;
1574 	return ret;
1580 	int ret;
1583 	ret = __bch2_dev_set_state(c, ca, new_state, flags);
1586 	return ret;
1595 	int ret;
1601 	ret =   bch2_btree_delete_range(c, BTREE_ID_lru, start, end,
1613 	bch_err_msg(c, ret, "removing dev alloc info");
1614 	return ret;
1621 	int ret;
1633 		ret = -BCH_ERR_device_state_not_allowed;
1639 	ret = bch2_dev_data_drop(c, ca->dev_idx, flags);
1640 	bch_err_msg(ca, ret, "bch2_dev_data_drop()");
1641 	if (ret)
1644 	ret = bch2_dev_remove_alloc(c, ca);
1645 	bch_err_msg(ca, ret, "bch2_dev_remove_alloc()");
1646 	if (ret)
1649 	ret = bch2_journal_flush_device_pins(&c->journal, ca->dev_idx);
1650 	bch_err_msg(ca, ret, "bch2_journal_flush_device_pins()");
1651 	if (ret)
1654 	ret = bch2_journal_flush(&c->journal);
1655 	bch_err_msg(ca, ret, "bch2_journal_flush()");
1656 	if (ret)
1659 	ret = bch2_replicas_gc2(c);
1660 	bch_err_msg(ca, ret, "bch2_replicas_gc2()");
1661 	if (ret)
1671 		ret = -EBUSY;
1717 	return ret;
1731 	int ret;
1733 	ret = bch2_read_super(path, &opts, &sb);
1734 	bch_err_msg(c, ret, "reading super");
1735 	if (ret)
1743 			ret = -ENOMEM;
1748 	ret = bch2_dev_may_add(sb.sb, c);
1749 	if (ret)
1754 		ret = -ENOMEM;
1760 	ret = __bch2_dev_attach_bdev(ca, &sb);
1761 	if (ret)
1764 	ret = bch2_dev_journal_alloc(ca);
1765 	bch_err_msg(c, ret, "allocating journal");
1766 	if (ret)
1772 	ret = bch2_sb_from_fs(c, ca);
1773 	bch_err_msg(c, ret, "setting up new superblock");
1774 	if (ret)
1784 	ret = -BCH_ERR_ENOSPC_sb_members;
1785 	bch_err_msg(c, ret, "setting up new superblock");
1797 		ret = -BCH_ERR_ENOSPC_sb_members;
1798 		bch_err_msg(c, ret, "setting up new superblock");
1813 		ret = __bch2_dev_group_set(c, ca, label.buf);
1814 		bch_err_msg(c, ret, "creating new label");
1815 		if (ret)
1824 	ret = bch2_trans_mark_dev_sb(c, ca);
1825 	bch_err_msg(ca, ret, "marking new superblock");
1826 	if (ret)
1829 	ret = bch2_fs_freespace_init(c);
1830 	bch_err_msg(ca, ret, "initializing free space");
1831 	if (ret)
1851 	bch_err_fn(c, ret);
1852 	return ret;
1866 	int ret;
1870 	ret = bch2_read_super(path, &opts, &sb);
1871 	if (ret) {
1873 		return ret;
1878 	ret = bch2_dev_in_fs(&c->disk_sb, &sb, &c->opts);
1879 	bch_err_msg(c, ret, "bringing %s online", path);
1880 	if (ret)
1883 	ret = bch2_dev_attach_bdev(c, &sb);
1884 	if (ret)
1889 	ret = bch2_trans_mark_dev_sb(c, ca);
1890 	bch_err_msg(c, ret, "bringing %s online: error from bch2_trans_mark_dev_sb", path);
1891 	if (ret)
1898 		ret = bch2_dev_freespace_init(c, ca, 0, ca->mi.nbuckets);
1899 		bch_err_msg(ca, ret, "initializing free space");
1900 		if (ret)
1905 		ret = bch2_dev_journal_alloc(ca);
1906 		bch_err_msg(ca, ret, "allocating journal");
1907 		if (ret)
1922 	return ret;
1951 	int ret = 0;
1958 		ret = -EINVAL;
1966 		ret = -BCH_ERR_device_size_too_small;
1970 	ret = bch2_dev_buckets_resize(c, ca, nbuckets);
1971 	bch_err_msg(ca, ret, "resizing buckets");
1972 	if (ret)
1975 	ret = bch2_trans_mark_dev_sb(c, ca);
1976 	if (ret)
1987 		ret = bch2_dev_freespace_init(c, ca, old_nbuckets, nbuckets);
1988 		if (ret)
2001 	return ret;
2032 	int ret = 0;
2038 		ret = -EINVAL;
2042 	ret = darray_make_room(&sbs, nr_devices);
2043 	if (ret)
2049 		ret = bch2_read_super(devices[i], &opts, &sb);
2050 		if (ret)
2057 		ret = -BCH_ERR_erofs_nochanges;
2066 		ret = bch2_dev_in_fs(best, sb, &opts);
2068 		if (ret == -BCH_ERR_device_has_been_removed ||
2069 		    ret == -BCH_ERR_device_splitbrain) {
2073 			ret = 0;
2077 		if (ret)
2082 	ret = PTR_ERR_OR_ZERO(c);
2083 	if (ret)
2088 		ret = bch2_dev_attach_bdev(c, sb);
2089 		if (ret) {
2097 		ret = -BCH_ERR_insufficient_devices_to_start;
2102 		ret = bch2_fs_start(c);
2103 		if (ret)
2115 	       devices[0], bch2_err_str(ret));
2119 	c = ERR_PTR(ret);