diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index d6120fa69116..27e748eb72b0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -46,6 +46,27 @@ struct zone_padding { #define ZONE_PADDING(name) #endif +enum zone_stat_item { + NR_ANON_PAGES, /* Mapped anonymous pages */ + NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. + only modified from process context */ + NR_FILE_PAGES, + NR_SLAB, /* Pages used by slab allocator */ + NR_PAGETABLE, /* used for pagetables */ + NR_FILE_DIRTY, + NR_WRITEBACK, + NR_UNSTABLE_NFS, /* NFS unstable pages */ + NR_BOUNCE, +#ifdef CONFIG_NUMA + NUMA_HIT, /* allocated in intended node */ + NUMA_MISS, /* allocated in non intended node */ + NUMA_FOREIGN, /* was intended here, hit elsewhere */ + NUMA_INTERLEAVE_HIT, /* interleaver preferred this zone */ + NUMA_LOCAL, /* allocation from local node */ + NUMA_OTHER, /* allocation from other node */ +#endif + NR_VM_ZONE_STAT_ITEMS }; + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ @@ -55,13 +76,8 @@ struct per_cpu_pages { struct per_cpu_pageset { struct per_cpu_pages pcp[2]; /* 0: hot. 1: cold */ -#ifdef CONFIG_NUMA - unsigned long numa_hit; /* allocated in intended node */ - unsigned long numa_miss; /* allocated in non intended node */ - unsigned long numa_foreign; /* was intended here, hit elsewhere */ - unsigned long interleave_hit; /* interleaver prefered this zone */ - unsigned long local_node; /* allocation from local node */ - unsigned long other_node; /* allocation from other node */ +#ifdef CONFIG_SMP + s8 vm_stat_diff[NR_VM_ZONE_STAT_ITEMS]; #endif } ____cacheline_aligned_in_smp; @@ -165,12 +181,8 @@ struct zone { /* A count of how many reclaimers are scanning this zone */ atomic_t reclaim_in_progress; - /* - * timestamp (in jiffies) of the last zone reclaim that did not - * result in freeing of pages. This is used to avoid repeated scans - * if all memory in the zone is in use. - */ - unsigned long last_unsuccessful_zone_reclaim; + /* Zone statistics */ + atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS]; /* * prev_priority holds the scanning priority for this zone. It is |