#ifdef __KERNEL__
#ifndef __ASSEMBLY__
-#include <linux/config.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/seqlock.h>
#include <linux/nodemask.h>
#include <asm/atomic.h>
+#include <asm/page.h>
/* Free memory management - zoned buddy allocator. */
#ifndef CONFIG_FORCE_MAX_ZONEORDER
#else
#define MAX_ORDER CONFIG_FORCE_MAX_ZONEORDER
#endif
+#define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1))
struct free_area {
struct list_head free_list;
unsigned long node_spanned_pages; /* total size of physical page
range, including holes */
int node_id;
- struct pglist_data *pgdat_next;
wait_queue_head_t kswapd_wait;
struct task_struct *kswapd;
int kswapd_max_order;
#include <linux/memory_hotplug.h>
-extern struct pglist_data *pgdat_list;
-
void __get_zone_counts(unsigned long *active, unsigned long *inactive,
unsigned long *free, struct pglist_data *pgdat);
void get_zone_counts(unsigned long *active, unsigned long *inactive,
#endif /* !CONFIG_NEED_MULTIPLE_NODES */
-static inline struct pglist_data *first_online_pgdat(void)
-{
- return NODE_DATA(first_online_node);
-}
-
-static inline struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
-{
- int nid = next_online_node(pgdat->node_id);
-
- if (nid == MAX_NUMNODES)
- return NULL;
- return NODE_DATA(nid);
-}
-
+extern struct pglist_data *first_online_pgdat(void);
+extern struct pglist_data *next_online_pgdat(struct pglist_data *pgdat);
+extern struct zone *next_zone(struct zone *zone);
/**
* for_each_pgdat - helper macro to iterate over all nodes
for (pgdat = first_online_pgdat(); \
pgdat; \
pgdat = next_online_pgdat(pgdat))
-
-/*
- * next_zone - helper magic for for_each_zone()
- * Thanks to William Lee Irwin III for this piece of ingenuity.
- */
-static inline struct zone *next_zone(struct zone *zone)
-{
- pg_data_t *pgdat = zone->zone_pgdat;
-
- if (zone < pgdat->node_zones + MAX_NR_ZONES - 1)
- zone++;
- else {
- pgdat = next_online_pgdat(pgdat);
- if (pgdat)
- zone = pgdat->node_zones;
- else
- zone = NULL;
- }
- return zone;
-}
-
/**
* for_each_zone - helper macro to iterate over all memory zones
* @zone - pointer to struct zone variable