+static int lod_attr_get(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ struct lustre_capa *capa)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ int i;
+ int rc;
+ ENTRY;
+
+ rc = dt_attr_get(env, dt_object_child(dt), attr, capa);
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr) || rc != 0)
+ RETURN(rc);
+
+ rc = lod_load_striping_locked(env, lo);
+ if (rc)
+ RETURN(rc);
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(rc);
+
+ attr->la_nlink = 2;
+ attr->la_size = 0;
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ struct lu_attr *sub_attr = &lod_env_info(env)->lti_attr;
+
+ LASSERT(lo->ldo_stripe[i]);
+ if (dt_object_exists(lo->ldo_stripe[i]))
+ continue;
+
+ rc = dt_attr_get(env, lo->ldo_stripe[i], sub_attr, capa);
+ if (rc != 0)
+ break;
+
+ /* -2 for . and .. on each stripe */
+ if (sub_attr->la_valid & LA_NLINK && attr->la_valid & LA_NLINK)
+ attr->la_nlink += sub_attr->la_nlink - 2;
+ if (sub_attr->la_valid & LA_SIZE && attr->la_valid & LA_SIZE)
+ attr->la_size += sub_attr->la_size;
+
+ if (sub_attr->la_valid & LA_ATIME &&
+ attr->la_valid & LA_ATIME &&
+ attr->la_atime < sub_attr->la_atime)
+ attr->la_atime = sub_attr->la_atime;
+
+ if (sub_attr->la_valid & LA_CTIME &&
+ attr->la_valid & LA_CTIME &&
+ attr->la_ctime < sub_attr->la_ctime)
+ attr->la_ctime = sub_attr->la_ctime;
+
+ if (sub_attr->la_valid & LA_MTIME &&
+ attr->la_valid & LA_MTIME &&
+ attr->la_mtime < sub_attr->la_mtime)
+ attr->la_mtime = sub_attr->la_mtime;
+ }
+
+ CDEBUG(D_INFO, DFID" stripe_count %d nlink %u size "LPU64"\n",
+ PFID(lu_object_fid(&dt->do_lu)), lo->ldo_stripenr,
+ attr->la_nlink, attr->la_size);
+
+ RETURN(rc);
+}
+
+/**
+ * Mark all of sub-stripes dead of the striped directory.
+ **/
+static int lod_mark_dead_object(const struct lu_env *env,
+ struct dt_object *dt,
+ struct thandle *handle,
+ bool declare)
+{
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lmv_mds_md_v1 *lmv;
+ __u32 dead_hash_type;
+ int rc;
+ int i;
+
+ ENTRY;
+
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr))
+ RETURN(0);
+
+ rc = lod_load_striping_locked(env, lo);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(0);
+
+ rc = lod_get_lmv_ea(env, lo);
+ if (rc <= 0)
+ RETURN(rc);
+
+ lmv = lod_env_info(env)->lti_ea_store;
+ lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_STRIPE);
+ dead_hash_type = le32_to_cpu(lmv->lmv_hash_type) | LMV_HASH_FLAG_DEAD;
+ lmv->lmv_hash_type = cpu_to_le32(dead_hash_type);
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ struct lu_buf buf;
+
+ lmv->lmv_master_mdt_index = i;
+ buf.lb_buf = lmv;
+ buf.lb_len = sizeof(*lmv);
+ if (declare) {
+ rc = dt_declare_xattr_set(env, lo->ldo_stripe[i], &buf,
+ XATTR_NAME_LMV,
+ LU_XATTR_REPLACE, handle);
+ } else {
+ rc = dt_xattr_set(env, lo->ldo_stripe[i], &buf,
+ XATTR_NAME_LMV, LU_XATTR_REPLACE,
+ handle, BYPASS_CAPA);
+ }
+ if (rc != 0)
+ break;
+ }
+
+ RETURN(rc);
+}
+
+static int lod_declare_attr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_attr *attr,
+ struct thandle *handle)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc, i;
+ ENTRY;
+
+ /* Set dead object on all other stripes */
+ if (attr->la_valid & LA_FLAGS && !(attr->la_valid & ~LA_FLAGS) &&
+ attr->la_flags & LUSTRE_SLAVE_DEAD_FL) {
+ rc = lod_mark_dead_object(env, dt, handle, true);
+ RETURN(rc);
+ }
+
+ /*
+ * declare setattr on the local object
+ */
+ rc = dt_declare_attr_set(env, next, attr, handle);
+ if (rc)
+ RETURN(rc);
+
+ /* osp_declare_attr_set() ignores all attributes other than
+ * UID, GID, and size, and osp_attr_set() ignores all but UID
+ * and GID. Declaration of size attr setting happens through
+ * lod_declare_init_size(), and not through this function.
+ * Therefore we need not load striping unless ownership is
+ * changing. This should save memory and (we hope) speed up
+ * rename(). */
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ if (!(attr->la_valid & (LA_UID | LA_GID)))
+ RETURN(rc);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_OWNER))
+ RETURN(0);
+ } else {
+ if (!(attr->la_valid & (LA_UID | LA_GID | LA_MODE |
+ LA_ATIME | LA_MTIME | LA_CTIME)))
+ RETURN(rc);
+ }
+ /*
+ * load striping information, notice we don't do this when object
+ * is being initialized as we don't need this information till
+ * few specific cases like destroy, chown
+ */
+ rc = lod_load_striping(env, lo);
+ if (rc)
+ RETURN(rc);
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(0);
+
+ /*
+ * if object is striped declare changes on the stripes
+ */
+ LASSERT(lo->ldo_stripe);
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ if (likely(lo->ldo_stripe[i] != NULL)) {
+ rc = dt_declare_attr_set(env, lo->ldo_stripe[i], attr,
+ handle);
+ if (rc != 0) {
+ CERROR("failed declaration: %d\n", rc);
+ break;
+ }
+ }
+ }
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
+ dt_object_exists(next) != 0 &&
+ dt_object_remote(next) == 0)
+ dt_declare_xattr_del(env, next, XATTR_NAME_LOV, handle);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CHANGE_STRIPE) &&
+ dt_object_exists(next) &&
+ dt_object_remote(next) == 0 && S_ISREG(attr->la_mode)) {
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lu_buf *buf = &info->lti_buf;
+
+ buf->lb_buf = info->lti_ea_store;
+ buf->lb_len = info->lti_ea_store_size;
+ dt_declare_xattr_set(env, next, buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle);
+ }
+
+ RETURN(rc);
+}
+
+static int lod_attr_set(const struct lu_env *env,
+ struct dt_object *dt,
+ const struct lu_attr *attr,
+ struct thandle *handle,
+ struct lustre_capa *capa)
+{
+ struct dt_object *next = dt_object_child(dt);
+ struct lod_object *lo = lod_dt_obj(dt);
+ int rc, i;
+ ENTRY;
+
+ /* Set dead object on all other stripes */
+ if (attr->la_valid & LA_FLAGS && !(attr->la_valid & ~LA_FLAGS) &&
+ attr->la_flags & LUSTRE_SLAVE_DEAD_FL) {
+ rc = lod_mark_dead_object(env, dt, handle, false);
+ RETURN(rc);
+ }
+
+ /*
+ * apply changes to the local object
+ */
+ rc = dt_attr_set(env, next, attr, handle, capa);
+ if (rc)
+ RETURN(rc);
+
+ if (!S_ISDIR(dt->do_lu.lo_header->loh_attr)) {
+ if (!(attr->la_valid & (LA_UID | LA_GID)))
+ RETURN(rc);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_OWNER))
+ RETURN(0);
+ } else {
+ if (!(attr->la_valid & (LA_UID | LA_GID | LA_MODE |
+ LA_ATIME | LA_MTIME | LA_CTIME)))
+ RETURN(rc);
+ }
+
+ if (lo->ldo_stripenr == 0)
+ RETURN(0);
+
+ /*
+ * if object is striped, apply changes to all the stripes
+ */
+ LASSERT(lo->ldo_stripe);
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ if (likely(lo->ldo_stripe[i] != NULL)) {
+ if (dt_object_exists(lo->ldo_stripe[i]) == 0)
+ continue;
+
+ rc = dt_attr_set(env, lo->ldo_stripe[i], attr,
+ handle, capa);
+ if (rc != 0) {
+ CERROR("failed declaration: %d\n", rc);
+ break;
+ }
+ }
+ }
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_STRIPE) &&
+ dt_object_exists(next) != 0 &&
+ dt_object_remote(next) == 0)
+ dt_xattr_del(env, next, XATTR_NAME_LOV, handle, BYPASS_CAPA);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_CHANGE_STRIPE) &&
+ dt_object_exists(next) &&
+ dt_object_remote(next) == 0 && S_ISREG(attr->la_mode)) {
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lu_buf *buf = &info->lti_buf;
+ struct ost_id *oi = &info->lti_ostid;
+ struct lu_fid *fid = &info->lti_fid;
+ struct lov_mds_md_v1 *lmm;
+ struct lov_ost_data_v1 *objs;
+ __u32 magic;
+ int rc1;
+
+ rc1 = lod_get_lov_ea(env, lo);
+ if (rc1 <= 0)
+ RETURN(rc);
+
+ buf->lb_buf = info->lti_ea_store;
+ buf->lb_len = info->lti_ea_store_size;
+ lmm = info->lti_ea_store;
+ magic = le32_to_cpu(lmm->lmm_magic);
+ if (magic == LOV_MAGIC_V1)
+ objs = &(lmm->lmm_objects[0]);
+ else
+ objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
+ ostid_le_to_cpu(&objs->l_ost_oi, oi);
+ ostid_to_fid(fid, oi, le32_to_cpu(objs->l_ost_idx));
+ fid->f_oid--;
+ fid_to_ostid(fid, oi);
+ ostid_cpu_to_le(oi, &objs->l_ost_oi);
+ dt_xattr_set(env, next, buf, XATTR_NAME_LOV,
+ LU_XATTR_REPLACE, handle, BYPASS_CAPA);
+ }
+
+ RETURN(rc);
+}
+
+static int lod_xattr_get(const struct lu_env *env, struct dt_object *dt,
+ struct lu_buf *buf, const char *name,
+ struct lustre_capa *capa)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *dev = lu2lod_dev(dt->do_lu.lo_dev);
+ int rc, is_root;
+ ENTRY;
+
+ rc = dt_xattr_get(env, dt_object_child(dt), buf, name, capa);
+ if (rc != -ENODATA || !S_ISDIR(dt->do_lu.lo_header->loh_attr & S_IFMT))
+ RETURN(rc);
+
+ /*
+ * lod returns default striping on the real root of the device
+ * this is like the root stores default striping for the whole
+ * filesystem. historically we've been using a different approach
+ * and store it in the config.
+ */
+ dt_root_get(env, dev->lod_child, &info->lti_fid);
+ is_root = lu_fid_eq(&info->lti_fid, lu_object_fid(&dt->do_lu));
+
+ if (is_root && strcmp(XATTR_NAME_LOV, name) == 0) {
+ struct lov_user_md *lum = buf->lb_buf;
+ struct lov_desc *desc = &dev->lod_desc;
+
+ if (buf->lb_buf == NULL) {
+ rc = sizeof(*lum);
+ } else if (buf->lb_len >= sizeof(*lum)) {
+ lum->lmm_magic = cpu_to_le32(LOV_USER_MAGIC_V1);
+ lmm_oi_set_seq(&lum->lmm_oi, FID_SEQ_LOV_DEFAULT);
+ lmm_oi_set_id(&lum->lmm_oi, 0);
+ lmm_oi_cpu_to_le(&lum->lmm_oi, &lum->lmm_oi);
+ lum->lmm_pattern = cpu_to_le32(desc->ld_pattern);
+ lum->lmm_stripe_size = cpu_to_le32(
+ desc->ld_default_stripe_size);
+ lum->lmm_stripe_count = cpu_to_le16(
+ desc->ld_default_stripe_count);
+ lum->lmm_stripe_offset = cpu_to_le16(
+ desc->ld_default_stripe_offset);
+ rc = sizeof(*lum);
+ } else {
+ rc = -ERANGE;
+ }
+ }
+
+ RETURN(rc);
+}
+
+static int lod_verify_md_striping(struct lod_device *lod,
+ const struct lmv_user_md_v1 *lum)
+{
+ int rc = 0;
+ ENTRY;
+
+ if (unlikely(le32_to_cpu(lum->lum_magic) != LMV_USER_MAGIC))
+ GOTO(out, rc = -EINVAL);
+
+ if (unlikely(le32_to_cpu(lum->lum_stripe_count) == 0))
+ GOTO(out, rc = -EINVAL);
+out:
+ if (rc != 0)
+ CERROR("%s: invalid lmv_user_md: magic = %x, "
+ "stripe_offset = %d, stripe_count = %u: rc = %d\n",
+ lod2obd(lod)->obd_name, le32_to_cpu(lum->lum_magic),
+ (int)le32_to_cpu(lum->lum_stripe_offset),
+ le32_to_cpu(lum->lum_stripe_count), rc);
+ return rc;
+}
+
+/**
+ * Master LMVEA will be same as slave LMVEA, except
+ * 1. different magic
+ * 2. No lmv_stripe_fids on slave
+ * 3. lmv_master_mdt_index on slave LMV EA will be stripe_index.
+ */
+static void lod_prep_slave_lmv_md(struct lmv_mds_md_v1 *slave_lmv,
+ const struct lmv_mds_md_v1 *master_lmv)
+{
+ *slave_lmv = *master_lmv;
+ slave_lmv->lmv_magic = cpu_to_le32(LMV_MAGIC_STRIPE);
+}
+
+int lod_prep_lmv_md(const struct lu_env *env, struct dt_object *dt,
+ struct lu_buf *lmv_buf)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lmv_mds_md_v1 *lmm1;
+ int stripe_count;
+ int lmm_size;
+ int type = LU_SEQ_RANGE_ANY;
+ int i;
+ int rc;
+ __u32 mdtidx;
+ ENTRY;
+
+ LASSERT(lo->ldo_dir_striped != 0);
+ LASSERT(lo->ldo_stripenr > 0);
+ stripe_count = lo->ldo_stripenr;
+ lmm_size = lmv_mds_md_size(stripe_count, LMV_MAGIC);
+ if (info->lti_ea_store_size < lmm_size) {
+ rc = lod_ea_store_resize(info, lmm_size);
+ if (rc != 0)
+ RETURN(rc);
+ }
+
+ lmm1 = (struct lmv_mds_md_v1 *)info->lti_ea_store;
+ lmm1->lmv_magic = cpu_to_le32(LMV_MAGIC);
+ lmm1->lmv_stripe_count = cpu_to_le32(stripe_count);
+ lmm1->lmv_hash_type = cpu_to_le32(lo->ldo_dir_hash_type);
+ rc = lod_fld_lookup(env, lod, lu_object_fid(&dt->do_lu),
+ &mdtidx, &type);
+ if (rc != 0)
+ RETURN(rc);
+
+ lmm1->lmv_master_mdt_index = cpu_to_le32(mdtidx);
+ fid_cpu_to_le(&lmm1->lmv_master_fid, lu_object_fid(&dt->do_lu));
+ for (i = 0; i < lo->ldo_stripenr; i++) {
+ struct dt_object *dto;
+
+ dto = lo->ldo_stripe[i];
+ LASSERT(dto != NULL);
+ fid_cpu_to_le(&lmm1->lmv_stripe_fids[i],
+ lu_object_fid(&dto->do_lu));
+ }
+
+ lmv_buf->lb_buf = info->lti_ea_store;
+ lmv_buf->lb_len = lmm_size;
+ lo->ldo_dir_striping_cached = 1;
+
+ RETURN(rc);
+}
+
+int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo,
+ const struct lu_buf *buf)
+{
+ struct lod_thread_info *info = lod_env_info(env);
+ struct lod_device *lod = lu2lod_dev(lo->ldo_obj.do_lu.lo_dev);
+ struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
+ struct dt_object **stripe;
+ union lmv_mds_md *lmm = buf->lb_buf;
+ struct lmv_mds_md_v1 *lmv1 = &lmm->lmv_md_v1;
+ struct lu_fid *fid = &info->lti_fid;
+ int i;
+ int rc = 0;
+ ENTRY;
+
+ if (le32_to_cpu(lmv1->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION)
+ RETURN(0);
+
+ if (le32_to_cpu(lmv1->lmv_magic) == LMV_MAGIC_STRIPE) {
+ lo->ldo_dir_slave_stripe = 1;
+ RETURN(0);
+ }
+
+ if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
+ RETURN(-EINVAL);
+
+ if (le32_to_cpu(lmv1->lmv_stripe_count) <= 1)
+ RETURN(0);
+
+ LASSERT(lo->ldo_stripe == NULL);
+ OBD_ALLOC(stripe, sizeof(stripe[0]) *
+ (le32_to_cpu(lmv1->lmv_stripe_count)));
+ if (stripe == NULL)
+ RETURN(-ENOMEM);
+
+ for (i = 0; i < le32_to_cpu(lmv1->lmv_stripe_count); i++) {
+ struct dt_device *tgt_dt;
+ struct dt_object *dto;
+ int type = LU_SEQ_RANGE_ANY;
+ __u32 idx;
+
+ fid_le_to_cpu(fid, &lmv1->lmv_stripe_fids[i]);
+ if (!fid_is_sane(fid))
+ GOTO(out, rc = -ESTALE);
+
+ rc = lod_fld_lookup(env, lod, fid, &idx, &type);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ if (idx == lod2lu_dev(lod)->ld_site->ld_seq_site->ss_node_id) {
+ tgt_dt = lod->lod_child;
+ } else {
+ struct lod_tgt_desc *tgt;
+
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ GOTO(out, rc = -ESTALE);
+ tgt_dt = tgt->ltd_tgt;
+ }
+
+ dto = dt_locate_at(env, tgt_dt, fid,
+ lo->ldo_obj.do_lu.lo_dev->ld_site->ls_top_dev,
+ NULL);
+ if (IS_ERR(dto))
+ GOTO(out, rc = PTR_ERR(dto));
+
+ stripe[i] = dto;
+ }
+out:
+ lo->ldo_stripe = stripe;
+ lo->ldo_stripenr = le32_to_cpu(lmv1->lmv_stripe_count);
+ lo->ldo_stripes_allocated = le32_to_cpu(lmv1->lmv_stripe_count);
+ if (rc != 0)
+ lod_object_free_striping(env, lo);
+
+ RETURN(rc);
+}
+
+static int lod_prep_md_striped_create(const struct lu_env *env,
+ struct dt_object *dt,
+ struct lu_attr *attr,
+ const struct lmv_user_md_v1 *lum,
+ struct dt_object_format *dof,
+ struct thandle *th)
+{
+ struct lod_device *lod = lu2lod_dev(dt->do_lu.lo_dev);
+ struct lod_tgt_descs *ltd = &lod->lod_mdt_descs;
+ struct lod_object *lo = lod_dt_obj(dt);
+ struct lod_thread_info *info = lod_env_info(env);
+ struct dt_object **stripe;
+ struct lu_buf lmv_buf;
+ struct lu_buf slave_lmv_buf;
+ struct lmv_mds_md_v1 *lmm;
+ struct lmv_mds_md_v1 *slave_lmm = NULL;
+ int stripe_count;
+ int *idx_array;
+ int rc = 0;
+ int i;
+ int j;
+ ENTRY;
+
+ /* The lum has been verifed in lod_verify_md_striping */
+ LASSERT(le32_to_cpu(lum->lum_magic) == LMV_USER_MAGIC);
+ LASSERT(le32_to_cpu(lum->lum_stripe_count) > 0);
+
+ stripe_count = le32_to_cpu(lum->lum_stripe_count);
+
+ /* shrink the stripe_count to the avaible MDT count */
+ if (stripe_count > lod->lod_remote_mdt_count + 1)
+ stripe_count = lod->lod_remote_mdt_count + 1;
+
+ OBD_ALLOC(stripe, sizeof(stripe[0]) * stripe_count);
+ if (stripe == NULL)
+ RETURN(-ENOMEM);
+
+ OBD_ALLOC(idx_array, sizeof(idx_array[0]) * stripe_count);
+ if (idx_array == NULL)
+ GOTO(out_free, rc = -ENOMEM);
+
+ for (i = 0; i < stripe_count; i++) {
+ struct lod_tgt_desc *tgt = NULL;
+ struct dt_object *dto;
+ struct lu_fid fid = { 0 };
+ int idx;
+ struct lu_object_conf conf = { 0 };
+ struct dt_device *tgt_dt = NULL;
+
+ if (i == 0) {
+ /* Right now, master stripe and master object are
+ * on the same MDT */
+ idx = le32_to_cpu(lum->lum_stripe_offset);
+ rc = obd_fid_alloc(env, lod->lod_child_exp, &fid,
+ NULL);
+ if (rc < 0)
+ GOTO(out_put, rc);
+ tgt_dt = lod->lod_child;
+ goto next;
+ }
+
+ idx = (idx_array[i - 1] + 1) % (lod->lod_remote_mdt_count + 1);
+
+ for (j = 0; j < lod->lod_remote_mdt_count;
+ j++, idx = (idx + 1) % (lod->lod_remote_mdt_count + 1)) {
+ bool already_allocated = false;
+ int k;
+
+ CDEBUG(D_INFO, "try idx %d, mdt cnt %d,"
+ " allocated %d, last allocated %d\n", idx,
+ lod->lod_remote_mdt_count, i, idx_array[i - 1]);
+
+ /* Find next available target */
+ if (!cfs_bitmap_check(ltd->ltd_tgt_bitmap, idx))
+ continue;
+
+ /* check whether the idx already exists
+ * in current allocated array */
+ for (k = 0; k < i; k++) {
+ if (idx_array[k] == idx) {
+ already_allocated = true;
+ break;
+ }
+ }
+
+ if (already_allocated)
+ continue;
+
+ /* check the status of the OSP */
+ tgt = LTD_TGT(ltd, idx);
+ if (tgt == NULL)
+ continue;
+
+ tgt_dt = tgt->ltd_tgt;
+ rc = dt_statfs(env, tgt_dt, NULL);
+ if (rc) {
+ /* this OSP doesn't feel well */
+ rc = 0;
+ continue;
+ }
+
+ rc = obd_fid_alloc(env, tgt->ltd_exp, &fid, NULL);
+ if (rc < 0) {
+ rc = 0;
+ continue;
+ }
+
+ break;
+ }
+
+ /* Can not allocate more stripes */
+ if (j == lod->lod_remote_mdt_count) {
+ CDEBUG(D_INFO, "%s: require stripes %d only get %d\n",
+ lod2obd(lod)->obd_name, stripe_count, i - 1);
+ break;
+ }
+
+ CDEBUG(D_INFO, "idx %d, mdt cnt %d,"
+ " allocated %d, last allocated %d\n", idx,
+ lod->lod_remote_mdt_count, i, idx_array[i - 1]);
+
+next:
+ /* tgt_dt and fid must be ready after search avaible OSP
+ * in the above loop */
+ LASSERT(tgt_dt != NULL);
+ LASSERT(fid_is_sane(&fid));
+ conf.loc_flags = LOC_F_NEW;
+ dto = dt_locate_at(env, tgt_dt, &fid,
+ dt->do_lu.lo_dev->ld_site->ls_top_dev,
+ &conf);
+ if (IS_ERR(dto))
+ GOTO(out_put, rc = PTR_ERR(dto));
+ stripe[i] = dto;
+ idx_array[i] = idx;
+ }
+
+ lo->ldo_dir_striped = 1;
+ lo->ldo_stripe = stripe;
+ lo->ldo_stripenr = i;
+ lo->ldo_stripes_allocated = stripe_count;