root_reclaim
if (current->reclaim_state && root_reclaim(sc)) {
if (root_reclaim(sc) && should_age)
VM_WARN_ON_ONCE(root_reclaim(sc));
VM_WARN_ON_ONCE(!root_reclaim(sc));
if ((lru_gen_enabled() || lru_gen_switching()) && !root_reclaim(sc)) {
if ((lru_gen_enabled() || lru_gen_switching()) && root_reclaim(sc)) {