static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
				 struct dquot *dquot, uint blk)
{
	char *buf = kmalloc(info->dqi_usable_bs, GFP_NOFS);
	loff_t ret = 0;
	int i;
	char *ddquot;

	if (!buf)
		return -ENOMEM;
	ret = read_blk(info, blk, buf);
	if (ret < 0) {
		quota_error(dquot->dq_sb, "Can't read quota tree "
			    "block %u", blk);
		goto out_buf;
	}
	ddquot = buf + sizeof(struct qt_disk_dqdbheader);
	for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
		if (info->dqi_ops->is_id(ddquot, dquot))
			break;
		ddquot += info->dqi_entry_size;
	}
	if (i == qtree_dqstr_in_blk(info)) {
		quota_error(dquot->dq_sb,
			    "Quota for id %u referenced but not present",
			    from_kqid(&init_user_ns, dquot->dq_id));
		ret = -EIO;
		goto out_buf;
	} else {
		ret = ((loff_t)blk << info->dqi_blocksize_bits) + sizeof(struct
		  qt_disk_dqdbheader) + i * info->dqi_entry_size;
	}
out_buf:
	kfree(buf);
	return ret;
}
static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
				 struct dquot *dquot, uint blk)
{
	char *buf = kmalloc(info->dqi_usable_bs, GFP_NOFS);
	loff_t ret = 0;
	int i;
	char *ddquot;

	if (!buf)
		return -ENOMEM;
	ret = read_blk(info, blk, buf);
	if (ret < 0) {
		quota_error(dquot->dq_sb, "Can't read quota tree "
			    "block %u", blk);
		goto out_buf;
	}
	ddquot = buf + sizeof(struct qt_disk_dqdbheader);
	for (i = 0; i < qtree_dqstr_in_blk(info); i++) {
		if (info->dqi_ops->is_id(ddquot, dquot))
			break;
		ddquot += info->dqi_entry_size;
	}
	if (i == qtree_dqstr_in_blk(info)) {
		quota_error(dquot->dq_sb,
			    "Quota for id %u referenced but not present",
			    from_kqid(&init_user_ns, dquot->dq_id));
		ret = -EIO;
		goto out_buf;
	} else {
		ret = ((loff_t)blk << info->dqi_blocksize_bits) + sizeof(struct
		  qt_disk_dqdbheader) + i * info->dqi_entry_size;
	}
out_buf:
	kfree(buf);
	return ret;
}