-/* Unpack OSC object metadata from disk storage (LE byte order). */
-static int osc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp,
- struct lov_mds_md *lmm, int lmm_bytes)
-{
- int lsm_size;
- struct obd_import *imp = class_exp2cliimp(exp);
- ENTRY;
-
- if (lmm != NULL) {
- if (lmm_bytes < sizeof(*lmm)) {
- CERROR("%s: lov_mds_md too small: %d, need %d\n",
- exp->exp_obd->obd_name, lmm_bytes,
- (int)sizeof(*lmm));
- RETURN(-EINVAL);
- }
- /* XXX LOV_MAGIC etc check? */
-
- if (unlikely(ostid_id(&lmm->lmm_oi) == 0)) {
- CERROR("%s: zero lmm_object_id: rc = %d\n",
- exp->exp_obd->obd_name, -EINVAL);
- RETURN(-EINVAL);
- }
- }
-
- lsm_size = lov_stripe_md_size(1);
- if (lsmp == NULL)
- RETURN(lsm_size);
-
- if (*lsmp != NULL && lmm == NULL) {
- OBD_FREE((*lsmp)->lsm_oinfo[0], sizeof(struct lov_oinfo));
- OBD_FREE(*lsmp, lsm_size);
- *lsmp = NULL;
- RETURN(0);
- }
-
- if (*lsmp == NULL) {
- OBD_ALLOC(*lsmp, lsm_size);
- if (unlikely(*lsmp == NULL))
- RETURN(-ENOMEM);
- OBD_ALLOC((*lsmp)->lsm_oinfo[0], sizeof(struct lov_oinfo));
- if (unlikely((*lsmp)->lsm_oinfo[0] == NULL)) {
- OBD_FREE(*lsmp, lsm_size);
- RETURN(-ENOMEM);
- }
- loi_init((*lsmp)->lsm_oinfo[0]);
- } else if (unlikely(ostid_id(&(*lsmp)->lsm_oi) == 0)) {
- RETURN(-EBADF);
- }
-
- if (lmm != NULL)
- /* XXX zero *lsmp? */
- ostid_le_to_cpu(&lmm->lmm_oi, &(*lsmp)->lsm_oi);
-
- if (imp != NULL &&
- (imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_MAXBYTES))
- (*lsmp)->lsm_maxbytes = imp->imp_connect_data.ocd_maxbytes;
- else
- (*lsmp)->lsm_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES;
-
- RETURN(lsm_size);
-}
-