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-rw-r--r--include/linux/mmzone.h17
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3693f1a5278..59855b8718a 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -58,6 +58,7 @@ enum zone_stat_item {
NR_WRITEBACK,
NR_UNSTABLE_NFS, /* NFS unstable pages */
NR_BOUNCE,
+ NR_VMSCAN_WRITE,
#ifdef CONFIG_NUMA
NUMA_HIT, /* allocated in intended node */
NUMA_MISS, /* allocated in non intended node */
@@ -167,6 +168,7 @@ struct zone {
unsigned long lowmem_reserve[MAX_NR_ZONES];
#ifdef CONFIG_NUMA
+ int node;
/*
* zone reclaim becomes active if more unmapped pages exist.
*/
@@ -305,6 +307,18 @@ struct zonelist {
struct zone *zones[MAX_NUMNODES * MAX_NR_ZONES + 1]; // NULL delimited
};
+#ifdef CONFIG_ARCH_POPULATES_NODE_MAP
+struct node_active_region {
+ unsigned long start_pfn;
+ unsigned long end_pfn;
+ int nid;
+};
+#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
+
+#ifndef CONFIG_DISCONTIGMEM
+/* The array of struct pages - for discontigmem use pgdat->lmem_map */
+extern struct page *mem_map;
+#endif
/*
* The pg_data_t structure is used in machines with CONFIG_DISCONTIGMEM
@@ -518,7 +532,8 @@ extern struct zone *next_zone(struct zone *zone);
#endif
-#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
+#if !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) && \
+ !defined(CONFIG_ARCH_POPULATES_NODE_MAP)
#define early_pfn_to_nid(nid) (0UL)
#endif