示例#1
0
文件: fld_index.c 项目: hpc/lustre
int fld_index_init(struct lu_server_fld *fld,
                   const struct lu_env *env,
                   struct dt_device *dt)
{
        struct dt_object *dt_obj;
        struct lu_fid fid;
        int rc;
        ENTRY;

        dt_obj = dt_store_open(env, dt, "", fld_index_name, &fid);
        if (!IS_ERR(dt_obj)) {
                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);
                        rc = fld_insert_igif_fld(fld, env);

                        if (rc != 0) {
                                CERROR("insert igif in fld! = %d\n", rc);
                                lu_object_put(env, &dt_obj->do_lu);
                                fld->lsf_obj = NULL;
                        }
                } else
                        CERROR("%s: File \"%s\" is not an index!\n",
                               fld->lsf_name, fld_index_name);


        } else {
                CERROR("%s: Can't find \"%s\" obj %d\n",
                       fld->lsf_name, fld_index_name, (int)PTR_ERR(dt_obj));
                rc = PTR_ERR(dt_obj);
        }

        RETURN(rc);
}
示例#2
0
int fld_index_init(const struct lu_env *env, struct lu_server_fld *fld,
		   struct dt_device *dt)
{
	struct dt_object	*dt_obj = NULL;
	struct lu_fid		fid;
	struct lu_attr		*attr = NULL;
	struct lu_seq_range	*range = NULL;
	struct fld_thread_info	*info;
	struct dt_object_format	dof;
	struct dt_it		*it;
	const struct dt_it_ops	*iops;
	int			rc;
	ENTRY;

	info = lu_context_key_get(&env->le_ctx, &fld_thread_key);
	LASSERT(info != NULL);

	lu_local_obj_fid(&fid, FLD_INDEX_OID);
	OBD_ALLOC_PTR(attr);
	if (attr == NULL)
		RETURN(-ENOMEM);

	memset(attr, 0, sizeof(attr));
	attr->la_valid = LA_MODE;
	attr->la_mode = S_IFREG | 0666;
	dof.dof_type = DFT_INDEX;
	dof.u.dof_idx.di_feat = &fld_index_features;

	dt_obj = dt_find_or_create(env, dt, &fid, &dof, attr);
	if (IS_ERR(dt_obj)) {
		rc = PTR_ERR(dt_obj);
		CERROR("%s: Can't find \"%s\" obj %d\n", fld->lsf_name,
			fld_index_name, rc);
		dt_obj = NULL;
		GOTO(out, rc);
	}

	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 {
		CERROR("%s: File \"%s\" is not an index: rc = %d!\n",
		       fld->lsf_name, fld_index_name, rc);
		GOTO(out, rc);
	}

	range = &info->fti_rec;
	/* Load fld entry to cache */
	iops = &dt_obj->do_index_ops->dio_it;
	it = iops->init(env, dt_obj, 0, NULL);
	if (IS_ERR(it))
		GOTO(out, rc = PTR_ERR(it));

	rc = iops->load(env, it, 0);
	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);

	} while (rc == 0);
	rc = 0;

out_it_fini:
	iops->fini(env, it);
out:
	if (attr != NULL)
		OBD_FREE_PTR(attr);

	if (rc != 0) {
		if (dt_obj != NULL)
			lu_object_put(env, &dt_obj->do_lu);
		fld->lsf_obj = NULL;
	}
	RETURN(rc);
}