.lsr_flags = LU_SEQ_RANGE_MDT
};
+static const struct lu_seq_range ROOT_FLD_RANGE = {
+ .lsr_start = FID_SEQ_ROOT,
+ .lsr_end = FID_SEQ_ROOT + 1,
+ .lsr_index = 0,
+ .lsr_flags = LU_SEQ_RANGE_MDT
+};
+
const struct dt_index_features fld_index_features = {
.dif_flags = DT_IND_UPDATE,
.dif_keysize_min = sizeof(seqno_t),
RETURN(rc);
}
-static int fld_insert_igif_fld(struct lu_server_fld *fld,
- const struct lu_env *env)
+int fld_insert_entry(const struct lu_env *env,
+ struct lu_server_fld *fld,
+ const struct lu_seq_range *range)
{
struct thandle *th;
int rc;
if (IS_ERR(th))
RETURN(PTR_ERR(th));
- rc = fld_declare_index_create(env, fld, &IGIF_FLD_RANGE, th);
+ rc = fld_declare_index_create(env, fld, range, th);
if (rc != 0) {
if (rc == -EEXIST)
rc = 0;
if (rc)
GOTO(out, rc);
- rc = fld_index_create(env, fld, &IGIF_FLD_RANGE, th);
+ rc = fld_index_create(env, fld, range, th);
if (rc == -EEXIST)
rc = 0;
out:
dt_trans_stop(env, lu2dt_dev(fld->lsf_obj->do_lu.lo_dev), th);
RETURN(rc);
}
+EXPORT_SYMBOL(fld_insert_entry);
+
+static int fld_insert_special_entries(const struct lu_env *env,
+ struct lu_server_fld *fld)
+{
+ int rc;
+
+ rc = fld_insert_entry(env, fld, &IGIF_FLD_RANGE);
+ if (rc != 0)
+ RETURN(rc);
+
+ rc = fld_insert_entry(env, fld, &ROOT_FLD_RANGE);
+
+ RETURN(rc);
+}
int fld_index_init(const struct lu_env *env, struct lu_server_fld *fld,
struct dt_device *dt)
if (attr == NULL)
RETURN(-ENOMEM);
- memset(attr, 0, sizeof(attr));
+ memset(attr, 0, sizeof(*attr));
attr->la_valid = LA_MODE;
attr->la_mode = S_IFREG | 0666;
dof.dof_type = DFT_INDEX;
fld->lsf_obj = dt_obj;
rc = dt_obj->do_ops->do_index_try(env, dt_obj, &fld_index_features);
- if (rc == 0) {
- LASSERT(dt_obj->do_index_ops != NULL);
- mutex_lock(&fld->lsf_lock);
- rc = fld_insert_igif_fld(fld, env);
- mutex_unlock(&fld->lsf_lock);
- if (rc != 0) {
- CERROR("insert igif in fld! = %d\n", rc);
- GOTO(out, rc);
- }
- } else {
+ if (rc != 0) {
CERROR("%s: File \"%s\" is not an index: rc = %d!\n",
fld->lsf_name, fld_index_name, rc);
GOTO(out, rc);
if (rc < 0)
GOTO(out_it_fini, rc);
- do {
- rc = iops->rec(env, it, (struct dt_rec *)range, 0);
- if (rc != 0)
- GOTO(out_it_fini, rc);
-
- LASSERT(range != NULL);
- range_be_to_cpu(range, range);
- rc = fld_cache_insert(fld->lsf_cache, range);
- if (rc != 0)
- GOTO(out_it_fini, rc);
- rc = iops->next(env, it);
+ if (rc > 0) {
+ /* Load FLD entry into server cache */
+ do {
+ rc = iops->rec(env, it, (struct dt_rec *)range, 0);
+ if (rc != 0)
+ GOTO(out_it_put, rc);
+ LASSERT(range != NULL);
+ range_be_to_cpu(range, range);
+ rc = fld_cache_insert(fld->lsf_cache, range);
+ if (rc != 0)
+ GOTO(out_it_put, rc);
+ rc = iops->next(env, it);
+ } while (rc == 0);
+ }
- } while (rc == 0);
- rc = 0;
+ /* Note: fld_insert_entry will detect whether these
+ * special entries already exist inside FLDB */
+ mutex_lock(&fld->lsf_lock);
+ rc = fld_insert_special_entries(env, fld);
+ mutex_unlock(&fld->lsf_lock);
+ if (rc != 0) {
+ CERROR("%s: insert special entries failed!: rc = %d\n",
+ fld->lsf_name, rc);
+ GOTO(out_it_put, rc);
+ }
+out_it_put:
+ iops->put(env, it);
out_it_fini:
iops->fini(env, it);
out: