diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 428328a05fa1..156e18f3919b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -81,8 +81,9 @@ struct zone_padding { enum zone_stat_item { /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, - NR_INACTIVE, - NR_ACTIVE, + NR_LRU_BASE, + NR_INACTIVE = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */ + NR_ACTIVE, /* " " " " " */ NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ @@ -107,6 +108,19 @@ enum zone_stat_item { #endif NR_VM_ZONE_STAT_ITEMS }; +enum lru_list { + LRU_BASE, + LRU_INACTIVE=LRU_BASE, /* must match order of NR_[IN]ACTIVE */ + LRU_ACTIVE, /* " " " " " */ + NR_LRU_LISTS }; + +#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) + +static inline int is_active_lru(enum lru_list l) +{ + return (l == LRU_ACTIVE); +} + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ @@ -251,10 +265,10 @@ struct zone { /* Fields commonly accessed by the page reclaim scanner */ spinlock_t lru_lock; - struct list_head active_list; - struct list_head inactive_list; - unsigned long nr_scan_active; - unsigned long nr_scan_inactive; + struct { + struct list_head list; + unsigned long nr_scan; + } lru[NR_LRU_LISTS]; unsigned long pages_scanned; /* since last reclaim */ unsigned long flags; /* zone flags, see below */ |