diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 6c1c2fc13017..5e50b78d58ea 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -105,6 +105,9 @@ extern int page_group_by_mobility_disabled; #define get_pageblock_migratetype(page) \ get_pfnblock_flags_mask(page, page_to_pfn(page), MIGRATETYPE_MASK) +#define folio_migratetype(folio) \ + get_pfnblock_flags_mask(&folio->page, folio_pfn(folio), \ + MIGRATETYPE_MASK) struct free_area { struct list_head free_list[MIGRATE_TYPES]; unsigned long nr_free; @@ -293,9 +296,21 @@ static inline bool is_active_lru(enum lru_list lru) #define ANON_AND_FILE 2 enum lruvec_flags { - LRUVEC_CONGESTED, /* lruvec has many dirty pages - * backed by a congested BDI - */ + /* + * An lruvec has many dirty pages backed by a congested BDI: + * 1. LRUVEC_CGROUP_CONGESTED is set by cgroup-level reclaim. + * It can be cleared by cgroup reclaim or kswapd. + * 2. LRUVEC_NODE_CONGESTED is set by kswapd node-level reclaim. + * It can only be cleared by kswapd. + * + * Essentially, kswapd can unthrottle an lruvec throttled by cgroup + * reclaim, but not vice versa. This only applies to the root cgroup. + * The goal is to prevent cgroup reclaim on the root cgroup (e.g. + * memory.reclaim) to unthrottle an unbalanced node (that was throttled + * by kswapd). + */ + LRUVEC_CGROUP_CONGESTED, + LRUVEC_NODE_CONGESTED, }; #endif /* !__GENERATING_BOUNDS_H */ @@ -537,7 +552,7 @@ void lru_gen_exit_memcg(struct mem_cgroup *memcg); void lru_gen_online_memcg(struct mem_cgroup *memcg); void lru_gen_offline_memcg(struct mem_cgroup *memcg); void lru_gen_release_memcg(struct mem_cgroup *memcg); -void lru_gen_soft_reclaim(struct lruvec *lruvec); +void lru_gen_soft_reclaim(struct mem_cgroup *memcg, int nid); #else /* !CONFIG_MEMCG */ @@ -588,7 +603,7 @@ static inline void lru_gen_release_memcg(struct mem_cgroup *memcg) { } -static inline void lru_gen_soft_reclaim(struct lruvec *lruvec) +static inline void lru_gen_soft_reclaim(struct mem_cgroup *memcg, int nid) { } @@ -1124,6 +1139,11 @@ static inline bool is_zone_movable_page(const struct page *page) { return page_zonenum(page) == ZONE_MOVABLE; } + +static inline bool folio_is_zone_movable(const struct folio *folio) +{ + return folio_zonenum(folio) == ZONE_MOVABLE; +} #endif /* @@ -1520,27 +1540,6 @@ static inline bool has_managed_dma(void) } #endif -/* These two functions are used to setup the per zone pages min values */ -struct ctl_table; - -int min_free_kbytes_sysctl_handler(struct ctl_table *, int, void *, size_t *, - loff_t *); -int watermark_scale_factor_sysctl_handler(struct ctl_table *, int, void *, - size_t *, loff_t *); -extern int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES]; -int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *, int, void *, - size_t *, loff_t *); -int percpu_pagelist_high_fraction_sysctl_handler(struct ctl_table *, int, - void *, size_t *, loff_t *); -int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *, int, - void *, size_t *, loff_t *); -int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *, int, - void *, size_t *, loff_t *); -int numa_zonelist_order_handler(struct ctl_table *, int, - void *, size_t *, loff_t *); -extern int percpu_pagelist_high_fraction; -extern char numa_zonelist_order[]; -#define NUMA_ZONELIST_ORDER_LEN 16 #ifndef CONFIG_NUMA |