diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmscan.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index d4b9fd1ae0ed..34535bbd4fe9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5356,18 +5356,20 @@ static int shrink_one(struct lruvec *lruvec, struct scan_control *sc) static void shrink_many(struct pglist_data *pgdat, struct scan_control *sc) { + int op; int gen; int bin; int first_bin; struct lruvec *lruvec; struct lru_gen_folio *lrugen; + struct mem_cgroup *memcg; const struct hlist_nulls_node *pos; - int op = 0; - struct mem_cgroup *memcg = NULL; unsigned long nr_to_reclaim = get_nr_to_reclaim(sc); bin = first_bin = get_random_u32_below(MEMCG_NR_BINS); restart: + op = 0; + memcg = NULL; gen = get_memcg_gen(READ_ONCE(pgdat->memcg_lru.seq)); rcu_read_lock(); @@ -5391,14 +5393,22 @@ restart: op = shrink_one(lruvec, sc); - if (sc->nr_reclaimed >= nr_to_reclaim) - goto success; - rcu_read_lock(); + + if (sc->nr_reclaimed >= nr_to_reclaim) + break; } rcu_read_unlock(); + if (op) + lru_gen_rotate_memcg(lruvec, op); + + mem_cgroup_put(memcg); + + if (sc->nr_reclaimed >= nr_to_reclaim) + return; + /* restart if raced with lru_gen_rotate_memcg() */ if (gen != get_nulls_value(pos)) goto restart; @@ -5407,11 +5417,6 @@ restart: bin = get_memcg_bin(bin + 1); if (bin != first_bin) goto restart; -success: - if (op) - lru_gen_rotate_memcg(lruvec, op); - - mem_cgroup_put(memcg); } static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc) |