diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 3ac040f19369..650ba2fb3301 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -140,25 +140,29 @@ enum lru_list { NR_LRU_LISTS }; -#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) +#define for_each_lru(lru) for (lru = 0; lru < NR_LRU_LISTS; lru++) -#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++) +#define for_each_evictable_lru(lru) for (lru = 0; lru <= LRU_ACTIVE_FILE; lru++) -static inline int is_file_lru(enum lru_list l) +static inline int is_file_lru(enum lru_list lru) { - return (l == LRU_INACTIVE_FILE || l == LRU_ACTIVE_FILE); + return (lru == LRU_INACTIVE_FILE || lru == LRU_ACTIVE_FILE); } -static inline int is_active_lru(enum lru_list l) +static inline int is_active_lru(enum lru_list lru) { - return (l == LRU_ACTIVE_ANON || l == LRU_ACTIVE_FILE); + return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE); } -static inline int is_unevictable_lru(enum lru_list l) +static inline int is_unevictable_lru(enum lru_list lru) { - return (l == LRU_UNEVICTABLE); + return (lru == LRU_UNEVICTABLE); } +struct lruvec { + struct list_head lists[NR_LRU_LISTS]; +}; + /* Mask used at gathering information at once (see memcontrol.c) */ #define LRU_ALL_FILE (BIT(LRU_INACTIVE_FILE) | BIT(LRU_ACTIVE_FILE)) #define LRU_ALL_ANON (BIT(LRU_INACTIVE_ANON) | BIT(LRU_ACTIVE_ANON)) @@ -173,6 +177,8 @@ static inline int is_unevictable_lru(enum lru_list l) #define ISOLATE_CLEAN ((__force isolate_mode_t)0x4) /* Isolate unmapped file */ #define ISOLATE_UNMAPPED ((__force isolate_mode_t)0x8) +/* Isolate for asynchronous migration */ +#define ISOLATE_ASYNC_MIGRATE ((__force isolate_mode_t)0x10) /* LRU Isolation modes. */ typedef unsigned __bitwise__ isolate_mode_t; @@ -317,6 +323,12 @@ struct zone { */ unsigned long lowmem_reserve[MAX_NR_ZONES]; + /* + * This is a per-zone reserve of pages that should not be + * considered dirtyable memory. + */ + unsigned long dirty_balance_reserve; + #ifdef CONFIG_NUMA int node; /* @@ -358,10 +370,8 @@ struct zone { ZONE_PADDING(_pad1_) /* Fields commonly accessed by the page reclaim scanner */ - spinlock_t lru_lock; - struct zone_lru { - struct list_head list; - } lru[NR_LRU_LISTS]; + spinlock_t lru_lock; + struct lruvec lruvec; struct zone_reclaim_stat reclaim_stat; |