Add fatal_signal_pending
[linux-2.6/mini2440.git] / mm / mmzone.c
blobeb5838634f181a1d6c58c948c10aac09dd272f26
1 /*
2 * linux/mm/mmzone.c
4 * management codes for pgdats and zones.
5 */
8 #include <linux/stddef.h>
9 #include <linux/mmzone.h>
10 #include <linux/module.h>
12 struct pglist_data *first_online_pgdat(void)
14 return NODE_DATA(first_online_node);
17 struct pglist_data *next_online_pgdat(struct pglist_data *pgdat)
19 int nid = next_online_node(pgdat->node_id);
21 if (nid == MAX_NUMNODES)
22 return NULL;
23 return NODE_DATA(nid);
27 * next_zone - helper magic for for_each_zone()
29 struct zone *next_zone(struct zone *zone)
31 pg_data_t *pgdat = zone->zone_pgdat;
33 if (zone < pgdat->node_zones + MAX_NR_ZONES - 1)
34 zone++;
35 else {
36 pgdat = next_online_pgdat(pgdat);
37 if (pgdat)
38 zone = pgdat->node_zones;
39 else
40 zone = NULL;
42 return zone;