ocfs2: Fix pos/len passed to ocfs2_write_cluster

				       loff_t pos, unsigned len)

{

	int ret, i;

	loff_t cluster_off;

	unsigned int local_len = len;

	struct ocfs2_write_cluster_desc *desc;

	struct ocfs2_super *osb = OCFS2_SB(mapping->host->i_sb);

	for (i = 0; i < wc->w_clen; i++) {

		desc = &wc->w_desc[i];

		/*

		 * We have to make sure that the total write passed in

		 * doesn't extend past a single cluster.

		 */

		local_len = len;

		cluster_off = pos & (osb->s_clustersize - 1);

		if ((cluster_off + local_len) > osb->s_clustersize)

			local_len = osb->s_clustersize - cluster_off;

		ret = ocfs2_write_cluster(mapping, desc->c_phys,

					  desc->c_unwritten, data_ac, meta_ac,

					  wc, desc->c_cpos, pos, len);

					  wc, desc->c_cpos, pos, local_len);

		if (ret) {

			mlog_errno(ret);

			goto out;

		}

		len -= local_len;

		pos += local_len;

	}

	ret = 0;