fs/btrfs/sysfs.c

740 BTRFS_ATTR(space_info, field, btrfs_space_info_show_##field)
761 	struct btrfs_space_info *space_info = to_space_info(kobj);
776 	if (space_info->flags & BTRFS_BLOCK_GROUP_SYSTEM)
797 	btrfs_update_space_info_chunk_size(space_info, val);
849 	struct btrfs_space_info *space_info = to_space_info(kobj);
875 	ret = btrfs_force_chunk_alloc(trans, space_info->flags);
883 BTRFS_ATTR_W(space_info, force_chunk_alloc, btrfs_force_chunk_alloc_store);
897 BTRFS_ATTR_RW(space_info, chunk_size, btrfs_chunk_size_show, btrfs_chunk_size_store);
898 BTRFS_ATTR(space_info, size_classes, btrfs_size_classes_show);
904 	struct btrfs_space_info *space_info = to_space_info(kobj);
906 	return sysfs_emit(buf, "%d\n", READ_ONCE(space_info->bg_reclaim_threshold));
913 	struct btrfs_space_info *space_info = to_space_info(kobj);
924 	WRITE_ONCE(space_info->bg_reclaim_threshold, thresh);
929 BTRFS_ATTR_RW(space_info, bg_reclaim_threshold,
939 	BTRFS_ATTR_PTR(space_info, flags),
940 	BTRFS_ATTR_PTR(space_info, total_bytes),
941 	BTRFS_ATTR_PTR(space_info, bytes_used),
942 	BTRFS_ATTR_PTR(space_info, bytes_pinned),
943 	BTRFS_ATTR_PTR(space_info, bytes_reserved),
944 	BTRFS_ATTR_PTR(space_info, bytes_may_use),
945 	BTRFS_ATTR_PTR(space_info, bytes_readonly),
946 	BTRFS_ATTR_PTR(space_info, bytes_zone_unusable),
947 	BTRFS_ATTR_PTR(space_info, disk_used),
948 	BTRFS_ATTR_PTR(space_info, disk_total),
949 	BTRFS_ATTR_PTR(space_info, bg_reclaim_threshold),
950 	BTRFS_ATTR_PTR(space_info, chunk_size),
951 	BTRFS_ATTR_PTR(space_info, size_classes),
953 	BTRFS_ATTR_PTR(space_info, force_chunk_alloc),
957 ATTRIBUTE_GROUPS(space_info);
1631 	struct btrfs_space_info *space_info = cache->space_info;
1666 	spin_lock(&space_info->lock);
1667 	if (space_info->block_group_kobjs[index]) {
1668 		spin_unlock(&space_info->lock);
1672 		space_info->block_group_kobjs[index] = &rkobj->kobj;
1674 	spin_unlock(&space_info->lock);
1676 	ret = kobject_add(&rkobj->kobj, &space_info->kobj, "%s",
1680 		spin_lock(&space_info->lock);
1681 		space_info->block_group_kobjs[index] = NULL;
1682 		spin_unlock(&space_info->lock);
1694 void btrfs_sysfs_remove_space_info(struct btrfs_space_info *space_info)
1701 		kobj = space_info->block_group_kobjs[i];
1702 		space_info->block_group_kobjs[i] = NULL;
1708 	kobject_del(&space_info->kobj);
1709 	kobject_put(&space_info->kobj);
1734 				    struct btrfs_space_info *space_info)
1738 	ret = kobject_init_and_add(&space_info->kobj, &space_info_ktype,
1740 				   alloc_name(space_info->flags));
1742 		kobject_put(&space_info->kobj);