diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 0507193b3ae3..94f9c3ff5416 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -323,6 +323,8 @@ enum node_stat_item { PGSCAN_PROACTIVE, PGSCAN_ANON, PGSCAN_FILE, + PGROTATE_ANON, + PGROTATE_FILE, PGREFILL, #ifdef CONFIG_HUGETLB_PAGE NR_HUGETLB, @@ -755,6 +757,12 @@ void lru_gen_reparent_memcg(struct mem_cgroup *memcg, struct mem_cgroup *parent, #endif /* CONFIG_LRU_GEN */ +struct lru_cost { + unsigned long count; + unsigned long last_rotated; + unsigned long last_io; +}; + struct lruvec { struct list_head lists[NR_LRU_LISTS]; /* per lruvec lru_lock for memcg */ @@ -763,9 +771,12 @@ struct lruvec { * These track the cost of reclaiming one LRU - file or anon - * over the other. As the observed cost of reclaiming one LRU * increases, the reclaim scan balance tips toward the other. + * Updated and decayed at prepare_scan_control() time; cost_lock + * serialises that update. */ - unsigned long anon_cost; - unsigned long file_cost; + struct lru_cost cost[ANON_AND_FILE]; + /* Protects cost[]. */ + spinlock_t cost_lock; /* Non-resident age, driven by LRU movement */ atomic_long_t nonresident_age; /* Refaults at the time of last reclaim cycle */ @@ -2058,7 +2069,6 @@ static inline struct mem_section *__nr_to_section(unsigned long nr) #endif return &mem_section[root][nr & SECTION_ROOT_MASK]; } -extern size_t mem_section_usage_size(void); /* * We use the lower bits of the mem_map pointer to store a little bit of |