c
// In lpfc_findnode_did
struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
    struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
    struct lpfc_nodelist *ndlp;

    // Use RCU to safely access the node list
    rcu_read_lock();
    ndlp = __lpfc_findnode_did_rcu(vport, did);
    rcu_read_unlock();

    return ndlp;
}

// In lpfc_vport_delete
int lpfc_vport_delete(struct fc_vport *fc_vport)
{
    // ...

    // Update the resource using RCU
    call_rcu(&vport->rcu, lpfc_vport_delete_rcu);

    return 0;
}
