reclaimer_offset
item = PGSCAN_KSWAPD + reclaimer_offset(sc);
mod_lruvec_state(lruvec, PGDEMOTE_KSWAPD + reclaimer_offset(sc),
item = PGSTEAL_KSWAPD + reclaimer_offset(sc);
item = PGSCAN_KSWAPD + reclaimer_offset(sc);
mod_lruvec_state(lruvec, PGDEMOTE_KSWAPD + reclaimer_offset(sc),
item = PGSTEAL_KSWAPD + reclaimer_offset(sc);