xfs_iext_peek_prev_extent
if (xfs_iext_peek_prev_extent(ifp, &bma->icur, &LEFT)) {
if (xfs_iext_peek_prev_extent(ifp, icur, &LEFT)) {
if (xfs_iext_peek_prev_extent(ifp, icur, &left)) {
if (!xfs_iext_peek_prev_extent(ifp, &bma.icur, &bma.prev))
if (!xfs_iext_peek_prev_extent(ifp, &bma.icur, &bma.prev))
if (xfs_iext_peek_prev_extent(ifp, &icur, &prev)) {
if (xfs_iext_peek_prev_extent(ifp, icur, &left)) {
if (!xfs_iext_peek_prev_extent(ifp, icur, &prev))