zswap_total_pages
show_val_kb(m, "Zswap: ", zswap_total_pages());
unsigned long zswap_total_pages(void);
nr_backing = zswap_total_pages();
} while (zswap_total_pages() > thr);
*val = zswap_total_pages() * PAGE_SIZE;
unsigned long cur_pages = zswap_total_pages();