ocfs2_clusters_to_megabytes
gd_mb = ocfs2_clusters_to_megabytes(osb->sb,
megs_per_slot = ocfs2_clusters_to_megabytes(osb->sb, megs_per_slot);
la_max_mb = ocfs2_clusters_to_megabytes(osb->sb,
la_max_mb = ocfs2_clusters_to_megabytes(sb,