diff options
| -rw-r--r-- | mm/vmscan.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 82f32c929b11..805fa51b175c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3166,7 +3166,7 @@ static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid) 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; @@ -3175,7 +3175,7 @@ static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid) #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) @@ -3239,9 +3239,6 @@ void lru_gen_add_mm(struct mm_struct *mm) 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; @@ -3271,9 +3268,6 @@ void lru_gen_del_mm(struct mm_struct *mm) 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; @@ -5348,9 +5342,6 @@ static void lru_gen_change_state(bool enabled) 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)); |