+ lsm_size = lmv_stripe_md_size(lmv_mds_md_stripe_count_get(lmm));
+ if (lsm == NULL) {
+ OBD_ALLOC(lsm, lsm_size);
+ if (lsm == NULL)
+ RETURN(-ENOMEM);
+ allocated = true;
+ *lsmp = lsm;
+ }
+
+ switch (le32_to_cpu(lmm->lmv_magic)) {
+ case LMV_MAGIC_V1:
+ case LMV_MAGIC_MIGRATE:
+ rc = lmv_unpack_md_v1(exp, lsm, &lmm->lmv_md_v1);
+ break;
+ default:
+ CERROR("%s: unrecognized magic %x\n", exp->exp_obd->obd_name,
+ le32_to_cpu(lmm->lmv_magic));
+ rc = -EINVAL;
+ break;
+ }
+
+ if (rc != 0 && allocated) {
+ OBD_FREE(lsm, lsm_size);
+ *lsmp = NULL;
+ lsm_size = rc;
+ }
+ RETURN(lsm_size);
+}
+
+int lmv_alloc_memmd(struct lmv_stripe_md **lsmp, int stripes)
+{
+ return lmv_unpack_md(NULL, lsmp, NULL, stripes);
+}
+EXPORT_SYMBOL(lmv_alloc_memmd);
+
+void lmv_free_memmd(struct lmv_stripe_md *lsm)
+{
+ lmv_unpack_md(NULL, &lsm, NULL, 0);
+}
+EXPORT_SYMBOL(lmv_free_memmd);
+
+int lmv_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
+ struct lov_mds_md *lmm, int disk_len)
+{
+ return lmv_unpack_md(exp, (struct lmv_stripe_md **)lsmp,
+ (union lmv_mds_md *)lmm, disk_len);
+}
+
+int lmv_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
+ struct lov_stripe_md *lsm)
+{
+ struct obd_device *obd = exp->exp_obd;
+ struct lmv_obd *lmv_obd = &obd->u.lmv;
+ const struct lmv_stripe_md *lmv = (struct lmv_stripe_md *)lsm;
+ int stripe_count;
+
+ if (lmmp == NULL) {
+ if (lsm != NULL)
+ stripe_count = lmv->lsm_md_stripe_count;
+ else
+ stripe_count = lmv_obd->desc.ld_tgt_count;
+
+ return lmv_mds_md_size(stripe_count, LMV_MAGIC_V1);
+ }
+
+ return lmv_pack_md((union lmv_mds_md **)lmmp, lmv, 0);