C++ (Cpp) core_get_lun_from_tpg Beispiele

Beispiel #1

Datei: target_core_fabric_configfs.c Projekt: ANFS/ANFS-kernel

static struct config_group *target_fabric_make_lun(
	struct config_group *group,
	const char *name)
{
	struct se_lun *lun;
	struct se_portal_group *se_tpg = container_of(group,
			struct se_portal_group, tpg_lun_group);
	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
	unsigned long unpacked_lun;

	if (strstr(name, "lun_") != name) {
		printk(KERN_ERR "Unable to locate \'_\" in"
				" \"lun_$LUN_NUMBER\"\n");
		return ERR_PTR(-EINVAL);
	}
	if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX)
		return ERR_PTR(-EINVAL);

	lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
	if (!(lun))
		return ERR_PTR(-EINVAL);

	config_group_init_type_name(&lun->lun_group, name,
			&TF_CIT_TMPL(tf)->tfc_tpg_port_cit);

	return &lun->lun_group;
}

Beispiel #2

Datei: target_core_fabric_configfs.c Projekt: AeroGirl/VAR-SOM-AM33-SDK7-Kernel

static struct config_group *target_fabric_make_lun(
	struct config_group *group,
	const char *name)
{
	struct se_lun *lun;
	struct se_portal_group *se_tpg = container_of(group,
			struct se_portal_group, tpg_lun_group);
	struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf;
	struct config_group *lun_cg = NULL, *port_stat_grp = NULL;
	unsigned long unpacked_lun;
	int errno;

	if (strstr(name, "lun_") != name) {
		pr_err("Unable to locate \'_\" in"
				" \"lun_$LUN_NUMBER\"\n");
		return ERR_PTR(-EINVAL);
	}
	errno = kstrtoul(name + 4, 0, &unpacked_lun);
	if (errno)
		return ERR_PTR(errno);
	if (unpacked_lun > UINT_MAX)
		return ERR_PTR(-EINVAL);

	lun = core_get_lun_from_tpg(se_tpg, unpacked_lun);
	if (!lun)
		return ERR_PTR(-EINVAL);

	lun_cg = &lun->lun_group;
	lun_cg->default_groups = kmalloc(sizeof(struct config_group *) * 2,
				GFP_KERNEL);
	if (!lun_cg->default_groups) {
		pr_err("Unable to allocate lun_cg->default_groups\n");
		return ERR_PTR(-ENOMEM);
	}

	config_group_init_type_name(&lun->lun_group, name,
			&TF_CIT_TMPL(tf)->tfc_tpg_port_cit);
	config_group_init_type_name(&lun->port_stat_grps.stat_group,
			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit);
	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
	lun_cg->default_groups[1] = NULL;

	port_stat_grp = &lun->port_stat_grps.stat_group;
	port_stat_grp->default_groups =  kzalloc(sizeof(struct config_group) * 3,
				GFP_KERNEL);
	if (!port_stat_grp->default_groups) {
		pr_err("Unable to allocate port_stat_grp->default_groups\n");
		errno = -ENOMEM;
		goto out;
	}
	target_stat_setup_port_default_groups(lun);

	return &lun->lun_group;
out:
	if (lun_cg)
		kfree(lun_cg->default_groups);
	return ERR_PTR(errno);
}