int lsm_unpackmd_v1(struct lov_obd *lov, struct lov_stripe_md *lsm,
struct lov_mds_md_v1 *lmm)
{
struct lov_oinfo *loi;
int i;
__u64 stripe_maxbytes = OBD_OBJECT_EOF;
lsm_unpackmd_common(lsm, lmm);
for (i = 0; i < lsm->lsm_stripe_count; i++) {
/* XXX LOV STACKING call down to osc_unpackmd() */
loi = lsm->lsm_oinfo[i];
ostid_le_to_cpu(&lmm->lmm_objects[i].l_ost_oi, &loi->loi_oi);
loi->loi_ost_idx = le32_to_cpu(lmm->lmm_objects[i].l_ost_idx);
loi->loi_ost_gen = le32_to_cpu(lmm->lmm_objects[i].l_ost_gen);
if (loi->loi_ost_idx >= lov->desc.ld_tgt_count) {
CERROR("OST index %d more than OST count %d\n",
loi->loi_ost_idx, lov->desc.ld_tgt_count);
lov_dump_lmm_v1(D_WARNING, lmm);
return -EINVAL;
}
if (!lov->lov_tgts[loi->loi_ost_idx]) {
CERROR("OST index %d missing\n", loi->loi_ost_idx);
lov_dump_lmm_v1(D_WARNING, lmm);
return -EINVAL;
}
/* calculate the minimum stripe max bytes */
lov_tgt_maxbytes(lov->lov_tgts[loi->loi_ost_idx],
&stripe_maxbytes);
}
lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
return 0;
}
void lov_dump_lmm(int level, void *lmm)
{
int magic;
magic = ((struct lov_mds_md_v1 *)(lmm))->lmm_magic;
switch (magic) {
case LOV_MAGIC_V1:
return lov_dump_lmm_v1(level, (struct lov_mds_md_v1 *)(lmm));
case LOV_MAGIC_V3:
return lov_dump_lmm_v3(level, (struct lov_mds_md_v3 *)(lmm));
default:
CERROR("Cannot recognize lmm_magic %x", magic);
}
return;
}
void lov_dump_lmm(int level, void *lmm)
{
int magic;
magic = le32_to_cpu(((struct lov_mds_md *)lmm)->lmm_magic);
switch (magic) {
case LOV_MAGIC_V1:
lov_dump_lmm_v1(level, (struct lov_mds_md_v1 *)lmm);
break;
case LOV_MAGIC_V3:
lov_dump_lmm_v3(level, (struct lov_mds_md_v3 *)lmm);
break;
default:
CDEBUG(level, "unrecognized lmm_magic %x, assuming %x\n",
magic, LOV_MAGIC_V1);
lov_dump_lmm_common(level, lmm);
break;
}
}
static int lsm_unpackmd_common(struct lov_obd *lov,
struct lov_stripe_md *lsm,
struct lov_mds_md *lmm,
struct lov_ost_data_v1 *objects)
{
struct lov_oinfo *loi;
loff_t stripe_maxbytes = LLONG_MAX;
unsigned int stripe_count;
unsigned int i;
/*
* This supposes lov_mds_md_v1/v3 first fields are
* are the same
*/
lmm_oi_le_to_cpu(&lsm->lsm_oi, &lmm->lmm_oi);
lsm->lsm_stripe_size = le32_to_cpu(lmm->lmm_stripe_size);
lsm->lsm_pattern = le32_to_cpu(lmm->lmm_pattern);
lsm->lsm_layout_gen = le16_to_cpu(lmm->lmm_layout_gen);
lsm->lsm_pool_name[0] = '\0';
stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
for (i = 0; i < stripe_count; i++) {
loi = lsm->lsm_oinfo[i];
ostid_le_to_cpu(&objects[i].l_ost_oi, &loi->loi_oi);
loi->loi_ost_idx = le32_to_cpu(objects[i].l_ost_idx);
loi->loi_ost_gen = le32_to_cpu(objects[i].l_ost_gen);
if (lov_oinfo_is_dummy(loi))
continue;
if (loi->loi_ost_idx >= lov->desc.ld_tgt_count &&
!lov2obd(lov)->obd_process_conf) {
CERROR("%s: OST index %d more than OST count %d\n",
(char*)lov->desc.ld_uuid.uuid,
loi->loi_ost_idx, lov->desc.ld_tgt_count);
lov_dump_lmm_v1(D_WARNING, lmm);
return -EINVAL;
}
if (lov->lov_tgts[loi->loi_ost_idx] == NULL) {
CERROR("%s: OST index %d missing\n",
(char*)lov->desc.ld_uuid.uuid, loi->loi_ost_idx);
lov_dump_lmm_v1(D_WARNING, lmm);
continue;
}
stripe_maxbytes = min_t(loff_t, stripe_maxbytes,
lov_tgt_maxbytes(
lov->lov_tgts[loi->loi_ost_idx]));
}
if (stripe_maxbytes == LLONG_MAX)
stripe_maxbytes = LUSTRE_EXT3_STRIPE_MAXBYTES;
if (lsm->lsm_stripe_count == 0)
lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
else
lsm->lsm_maxbytes = stripe_maxbytes * lsm->lsm_stripe_count;
return 0;
}