ClabureDB: Classified Bug-Reports Database

        if (err) {
                /* re-insert swap space back into swap_list */
                spin_lock(&swap_lock);
                if (p->prio < 0)
                        p->prio = --least_priority;
                prev = -1;
                for (i = swap_list.head; i >= 0; i = swap_info[i].next) {
                        if (p->prio >= swap_info[i].prio)
                                break;
                        prev = i;
                }
                p->next = i;
                if (prev < 0)
                        swap_list.head = swap_list.next = p - swap_info;
                else
                        swap_info[prev].next = p - swap_info;
                nr_swap_pages += p->pages;
                total_swap_pages += p->pages;
                p->flags |= SWP_WRITEOK;
                spin_unlock(&swap_lock);
                goto out_dput;
        }

        /* wait for any unplug function to finish */
        down_write(&swap_unplug_sem);
        up_write(&swap_unplug_sem);

        destroy_swap_extents(p);
        mutex_lock(&swapon_mutex);
        spin_lock(&swap_lock);
        drain_mmlist();

        /* wait for anyone still in scan_swap_map */
        p->highest_bit = 0;                /* cuts scans short */
        while (p->flags >= SWP_SCANNING) {
                spin_unlock(&swap_lock);
                schedule_timeout_uninterruptible(1);
                spin_lock(&swap_lock);
        }