if (memcg) {
struct lruvec *lruvec = &memcg->nodeinfo[nid]->lruvec;
- /* for hotadd_new_pgdat() */
+ /* see the comment in mem_cgroup_lruvec() */
if (!lruvec->pgdat)
lruvec->pgdat = pgdat;
#endif
VM_WARN_ON_ONCE(!mem_cgroup_disabled());
- return pgdat ? &pgdat->__lruvec : NULL;
+ return &pgdat->__lruvec;
}
static int get_swappiness(struct lruvec *lruvec, struct scan_control *sc)
for_each_node_state(nid, N_MEMORY) {
struct lruvec *lruvec = get_lruvec(memcg, nid);
- if (!lruvec)
- continue;
-
/* the first addition since the last iteration */
if (lruvec->mm_state.tail == &mm_list->fifo)
lruvec->mm_state.tail = &mm->lru_gen.list;
for_each_node(nid) {
struct lruvec *lruvec = get_lruvec(memcg, nid);
- if (!lruvec)
- continue;
-
/* where the last iteration ended (exclusive) */
if (lruvec->mm_state.tail == &mm->lru_gen.list)
lruvec->mm_state.tail = lruvec->mm_state.tail->next;
for_each_node(nid) {
struct lruvec *lruvec = get_lruvec(memcg, nid);
- if (!lruvec)
- continue;
-
spin_lock_irq(&lruvec->lru_lock);
VM_WARN_ON_ONCE(!seq_is_valid(lruvec));