/* copied from lov/lov_ea.c, just for debugging, will be removed later */
void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid)
{
const struct lov_ost_data_v1 *lod;
int i;
__u16 count;
if (likely(!cfs_cdebug_show(level, DEBUG_SUBSYSTEM)))
return;
count = le16_to_cpu(((struct lov_user_md *)lmm)->lmm_stripe_count);
CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
le32_to_cpu(lmm->lmm_pattern));
CDEBUG(level, "stripe_size=0x%x, stripe_count=0x%x\n",
le32_to_cpu(lmm->lmm_stripe_size), count);
/* If it's a directory or a released file, then there are
* no actual objects to print, so bail out. */
if (valid & OBD_MD_FLDIREA ||
le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED)
return;
LASSERT(count <= LOV_MAX_STRIPE_COUNT);
for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
struct ost_id oi;
ostid_le_to_cpu(&lod->l_ost_oi, &oi);
CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
}
}
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;
}
static int lsm_unpackmd_v3(struct lov_obd *lov, struct lov_stripe_md *lsm,
struct lov_mds_md *lmmv1)
{
struct lov_mds_md_v3 *lmm;
struct lov_oinfo *loi;
int i;
int stripe_count;
__u64 stripe_maxbytes = OBD_OBJECT_EOF;
int cplen = 0;
lmm = (struct lov_mds_md_v3 *)lmmv1;
lsm_unpackmd_common(lsm, (struct lov_mds_md_v1 *)lmm);
stripe_count = lsm_is_released(lsm) ? 0 : lsm->lsm_stripe_count;
cplen = strlcpy(lsm->lsm_pool_name, lmm->lmm_pool_name,
sizeof(lsm->lsm_pool_name));
if (cplen >= sizeof(lsm->lsm_pool_name))
return -E2BIG;
for (i = 0; i < 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 (lov_oinfo_is_dummy(loi))
continue;
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_v3(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_v3(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;
if (lsm->lsm_stripe_count == 0)
lsm->lsm_maxbytes = stripe_maxbytes * lov->desc.ld_tgt_count;
return 0;
}
static void lov_dump_lmm_objects(int level, struct lov_ost_data *lod,
int stripe_count)
{
int i;
if (stripe_count > LOV_V1_INSANE_STRIPE_COUNT) {
CDEBUG(level, "bad stripe_count %u > max_stripe_count %u\n",
stripe_count, LOV_V1_INSANE_STRIPE_COUNT);
return;
}
for (i = 0; i < stripe_count; ++i, ++lod) {
struct ost_id oi;
ostid_le_to_cpu(&lod->l_ost_oi, &oi);
CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n", i,
le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
}
}
/* copied from lov/lov_ea.c, just for debugging, will be removed later */
void mdt_dump_lmm(int level, const struct lov_mds_md *lmm)
{
const struct lov_ost_data_v1 *lod;
int i;
__u16 count;
count = le16_to_cpu(((struct lov_user_md*)lmm)->lmm_stripe_count);
CDEBUG(level, "objid "DOSTID", magic 0x%08X, pattern %#X\n",
POSTID(&lmm->lmm_oi), le32_to_cpu(lmm->lmm_magic),
le32_to_cpu(lmm->lmm_pattern));
CDEBUG(level,"stripe_size=0x%x, stripe_count=0x%x\n",
le32_to_cpu(lmm->lmm_stripe_size), count);
if (count == LOV_ALL_STRIPES)
return;
LASSERT(count <= LOV_MAX_STRIPE_COUNT);
for (i = 0, lod = lmm->lmm_objects; i < count; i++, lod++) {
struct ost_id oi;
ostid_le_to_cpu((struct ost_id *)&lod->l_ost_oi, &oi);
CDEBUG(level, "stripe %u idx %u subobj "DOSTID"\n",
i, le32_to_cpu(lod->l_ost_idx), POSTID(&oi));
}
}
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;
}
